- home
- Advanced Search
- Energy Research
- Energy Research
description Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2016 KenyaPublisher:Academic Journals Authors: Richard Kyuma; R.G. Wahome; Josiah M. Kinama; Oliver Vivian Wasonga;handle: 11295/100510
Une étude a été menée pour déterminer l'association de la variabilité climatique, de la propagation de Prosopis juliflora et d'autres tendances de la végétation avec la dynamique des populations de bétail dans le comté de Kajiado, au Kenya. Les précipitations mensuelles, les températures mensuelles moyennes, les populations de bovins, de moutons et de chèvres de janvier 2000 à décembre 2014 ont été analysées pour déterminer les tendances des séries chronologiques. Les données de l'indice de végétation à différence normalisée (NDVI) dérivées du spectroradiomètre d'imagerie à résolution modérée (MODIS) Des images satellites de 250 m pour 2000 à 2014 ont été utilisées pour déterminer la dynamique temporelle de l'invasion de P. juliflora dans la zone d'étude. Les tendances de la température et des précipitations ont montré une variabilité marquée au cours de la période étudiée. Les températures mensuelles moyennes pendant la longue saison sèche ont augmenté de façon erratique de 33 °C en 2000 à 37 °C en 2014. De plus, les précipitations pendant la saison la plus humide ont été de 600 mm en 2000 et de 250 mm en 2014. Au cours de la période d'étude, l'écart par rapport aux précipitations moyennes à long terme (450 mm) a diminué de 585 à 403 mm. Dans le même temps, la population bovine a diminué, les populations de moutons et de chèvres sont restées statiques. L'invasion de P. juliflora a montré une corrélation positive (r=0,2 ;P<0,05) avec la moyenne la température mensuelle et négativement (r=-0,4 ;P<0,05) avec les précipitations et d'autres couvertures végétales dans les parties plus sèches, mais pas dans les parties plus élevées en altitude et plus humides de la zone d'étude. Il y avait également une corrélation négative avec les populations de bovins (r=-0,4 ;P<0,05). Dans les années 1980, les broussailles et les bois constituaient 95 et 5 % de la couverture terrestre, tandis qu'en 2008, la végétation herbacée, les arbustes et les arbres ouverts ainsi que les zones dénudées constituaient 50, 30 et 22 %, respectivement ; dont 70 % avaient été repris par Prosopis en 2014. Cette étude a démontré que même si les tendances ont montré que la population de bovins diminuait à mesure que la variabilité climatique et l'invasion de Prosopis augmentaient, il n'y avait pas de corrélation significative entre les attributs, au cours de la période à l'étude. Se realizó un estudio para determinar la asociación de la variabilidad climática, la propagación de Prosopis juliflora y otras tendencias de la vegetación con la dinámica de la población ganadera en el condado de Kajiado, Kenia. Se analizaron las precipitaciones mensuales, las temperaturas medias mensuales, las poblaciones de ganado vacuno, ovino y caprino de enero de 2000 a diciembre de 2014 para determinar las tendencias de las series temporales. Datos del Índice de Vegetación de Diferencia Normalizada (NDVI) derivados del espectrorradiómetro de imágenes de resolución moderada (MODIS) Se utilizaron imágenes satelitales de 250 m para 2000 a 2014 para determinar la dinámica temporal de la invasión de P. juliflora en el área de estudio. Las tendencias de temperatura y lluvia mostraron una marcada variabilidad durante el período en estudio. Las temperaturas medias mensuales durante la larga estación seca aumentaron de manera errática de 33 ° C en 2000 a 37 ° C en 2014. Además, la precipitación durante la temporada más húmeda fue de 600 mm en 2000 y 250 mm en 2014. Durante el período de estudio, la divergencia de la precipitación media a largo plazo (450 mm) disminuyó de 585 a 403 mm. Al mismo tiempo, la población de ganado disminuyó, las poblaciones de ovejas y cabras permanecieron estáticas. La invasión de juliflora se correlacionó positivamente (r=0,2;P<0,05) con la media temperatura mensual y negativamente (r=-0.4;P<0.05) con lluvias y otra cubierta vegetal en partes más secas, pero no en las partes de mayor altitud y más húmedas del área de estudio. También se correlacionó negativamente con las poblaciones de ganado (r=-0.4;P<0.05). En la década de 1980, los arbustos y bosques constituían el 95 y el 5% de la cubierta terrestre, mientras que en 2008, la vegetación herbácea, los matorrales y los árboles abiertos junto con las áreas desnudas constituían el 50, 30 y 22%, respectivamente; de los cuales el 70% había sido tomado por Prosopis en 2014. Este estudio demostró que, aunque las tendencias mostraron que la población de ganado disminuyó a medida que aumentaba la variabilidad climática y la invasión de Prosopis, no hubo una correlación significativa entre los atributos, durante el período bajo estudio. A study was conducted to determine the association of climate variability, Prosopis juliflora spread, and other vegetation trends with livestock population dynamics in Kajiado County, Kenya.Monthly rainfall, mean monthly temperatures, cattle, sheep and goats populations from January 2000 to December 2014, were analyzed to determine time series trends.Normalized Difference Vegetation Index (NDVI) data derived from moderate resolution imaging spectroradiometer (MODIS) 250 m satellite imageries for 2000 to 2014 were used to determine the temporal dynamics of P. juliflora invasion in the study area.Both temperature and rainfall trends showed marked variability over the period under study.The mean monthly temperatures during the long dry season increased erratically from 33°C in 2000 to 37°C in 2014.Moreover, the rainfall during the wettest season was 600 mm in 2000 and 250 mm in 2014.During the study period, divergence from the long term mean rainfall (450 mm) decreased from 585 to 403 mm.At the same time cattle population decreased, sheep and goats populations remained static.P. juliflora invasion correlated positively (r=0.2;P<0.05) with mean monthly temperature and negatively (r=-0.4;P<0.05) with rainfall and other vegetation cover in drier parts, but not in the higher altitude and wetter parts of the study area.It also correlated negatively with cattle populations (r=-0.4;P<0.05).In the 1980's, bushlands and woodlands constituted 95 and 5% of the land cover, while in 2008, herbaceous vegetation, shrublands, and open trees together with bare areas constituted 50, 30, and 22%, respectively; out of which 70% had been taken over by Prosopis in 2014.This study demonstrated that even though the trends showed that cattle population decreased as climate variability and Prosopis invasion increased, there was no significant correlation among the attributes, over the period under study. أُجريت دراسة لتحديد الارتباط بين تقلب المناخ وانتشار بروسوبيس جوليفلورا واتجاهات الغطاء النباتي الأخرى وديناميكيات عدد الماشية في مقاطعة كاجيادو، كينيا. تم تحليل هطول الأمطار الشهري، ومتوسط درجات الحرارة الشهرية، وعدد الماشية والأغنام والماعز من يناير 2000 إلى ديسمبر 2014، لتحديد اتجاهات السلاسل الزمنية. تم تحليل بيانات مؤشر الفرق الطبيعي للغطاء النباتي (NDVI) المستمدة من مقياس طيف التصوير المعتدل الدقة (MODIS) تم استخدام صور الأقمار الصناعية 250 مترًا للفترة من 2000 إلى 2014 لتحديد الديناميكيات الزمنية لغزو P. juliflora في منطقة الدراسة. أظهرت كل من درجات الحرارة واتجاهات هطول الأمطار تقلبًا ملحوظًا خلال الفترة قيد الدراسة. زاد متوسط درجات الحرارة الشهرية خلال موسم الجفاف الطويل بشكل غير منتظم من 33 درجة مئوية في عام 2000 إلى 37 درجة مئوية في عام 2014. علاوة على ذلك، كان هطول الأمطار خلال موسم الأمطار 600 مم في عام 2000 و 250 مم في عام 2014. خلال فترة الدراسة، انخفض الاختلاف عن متوسط هطول الأمطار على المدى الطويل (450 مم) من 585 إلى 403 مم. في نفس الوقت انخفض عدد الماشية، وظلت أعداد الأغنام والماعز ثابتة. ارتبط غزو juliflora بشكل إيجابي (r=0.2 ؛P<0.05) مع المتوسط درجة الحرارة الشهرية وسلبية (r=-0.4 ؛P<0.05) مع هطول الأمطار والغطاء النباتي الآخر في الأجزاء الأكثر جفافًا، ولكن ليس في الأجزاء المرتفعة والرطبة من منطقة الدراسة. كما ارتبطت سلبًا مع أعداد الماشية (r=-0.4 ؛P<0.05). في الثمانينيات، شكلت أراضي الأدغال والغابات 95 و 5 ٪ من الغطاء الأرضي، بينما في عام 2008، شكلت النباتات العشبية وأراضي الشجيرات والأشجار المفتوحة جنبًا إلى جنب مع المناطق العارية 50 و 30 و 22 ٪ على التوالي ؛ منها 70 ٪ استولت عليها Prosopis في عام 2014. أظهرت هذه الدراسة أنه على الرغم من أن الاتجاهات أظهرت أن أعداد الماشية انخفضت مع زيادة تقلب المناخ وغزو Prosopis، لم يكن هناك ارتباط كبير بين السمات، خلال الفترة قيد الدراسة.
African Journal of E... arrow_drop_down African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: African Journals Online (AJOL)African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: CrossrefAfrican Journal of Environmental Science and TechnologyArticleLicense: CC BYData sources: UnpayWallAfrican Journal of Environmental Science and TechnologyJournalData sources: Microsoft Academic Graphadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5897/ajest2015.2034&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 8 citations 8 popularity Top 10% influence Average impulse Average 
Powered by BIP!more_vert African Journal of E... arrow_drop_down African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: African Journals Online (AJOL)African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: CrossrefAfrican Journal of Environmental Science and TechnologyArticleLicense: CC BYData sources: UnpayWallAfrican Journal of Environmental Science and TechnologyJournalData sources: Microsoft Academic Graphadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5897/ajest2015.2034&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2016 KenyaPublisher:Academic Journals Authors: Richard Kyuma; R.G. Wahome; Josiah M. Kinama; Oliver Vivian Wasonga;handle: 11295/100510
Une étude a été menée pour déterminer l'association de la variabilité climatique, de la propagation de Prosopis juliflora et d'autres tendances de la végétation avec la dynamique des populations de bétail dans le comté de Kajiado, au Kenya. Les précipitations mensuelles, les températures mensuelles moyennes, les populations de bovins, de moutons et de chèvres de janvier 2000 à décembre 2014 ont été analysées pour déterminer les tendances des séries chronologiques. Les données de l'indice de végétation à différence normalisée (NDVI) dérivées du spectroradiomètre d'imagerie à résolution modérée (MODIS) Des images satellites de 250 m pour 2000 à 2014 ont été utilisées pour déterminer la dynamique temporelle de l'invasion de P. juliflora dans la zone d'étude. Les tendances de la température et des précipitations ont montré une variabilité marquée au cours de la période étudiée. Les températures mensuelles moyennes pendant la longue saison sèche ont augmenté de façon erratique de 33 °C en 2000 à 37 °C en 2014. De plus, les précipitations pendant la saison la plus humide ont été de 600 mm en 2000 et de 250 mm en 2014. Au cours de la période d'étude, l'écart par rapport aux précipitations moyennes à long terme (450 mm) a diminué de 585 à 403 mm. Dans le même temps, la population bovine a diminué, les populations de moutons et de chèvres sont restées statiques. L'invasion de P. juliflora a montré une corrélation positive (r=0,2 ;P<0,05) avec la moyenne la température mensuelle et négativement (r=-0,4 ;P<0,05) avec les précipitations et d'autres couvertures végétales dans les parties plus sèches, mais pas dans les parties plus élevées en altitude et plus humides de la zone d'étude. Il y avait également une corrélation négative avec les populations de bovins (r=-0,4 ;P<0,05). Dans les années 1980, les broussailles et les bois constituaient 95 et 5 % de la couverture terrestre, tandis qu'en 2008, la végétation herbacée, les arbustes et les arbres ouverts ainsi que les zones dénudées constituaient 50, 30 et 22 %, respectivement ; dont 70 % avaient été repris par Prosopis en 2014. Cette étude a démontré que même si les tendances ont montré que la population de bovins diminuait à mesure que la variabilité climatique et l'invasion de Prosopis augmentaient, il n'y avait pas de corrélation significative entre les attributs, au cours de la période à l'étude. Se realizó un estudio para determinar la asociación de la variabilidad climática, la propagación de Prosopis juliflora y otras tendencias de la vegetación con la dinámica de la población ganadera en el condado de Kajiado, Kenia. Se analizaron las precipitaciones mensuales, las temperaturas medias mensuales, las poblaciones de ganado vacuno, ovino y caprino de enero de 2000 a diciembre de 2014 para determinar las tendencias de las series temporales. Datos del Índice de Vegetación de Diferencia Normalizada (NDVI) derivados del espectrorradiómetro de imágenes de resolución moderada (MODIS) Se utilizaron imágenes satelitales de 250 m para 2000 a 2014 para determinar la dinámica temporal de la invasión de P. juliflora en el área de estudio. Las tendencias de temperatura y lluvia mostraron una marcada variabilidad durante el período en estudio. Las temperaturas medias mensuales durante la larga estación seca aumentaron de manera errática de 33 ° C en 2000 a 37 ° C en 2014. Además, la precipitación durante la temporada más húmeda fue de 600 mm en 2000 y 250 mm en 2014. Durante el período de estudio, la divergencia de la precipitación media a largo plazo (450 mm) disminuyó de 585 a 403 mm. Al mismo tiempo, la población de ganado disminuyó, las poblaciones de ovejas y cabras permanecieron estáticas. La invasión de juliflora se correlacionó positivamente (r=0,2;P<0,05) con la media temperatura mensual y negativamente (r=-0.4;P<0.05) con lluvias y otra cubierta vegetal en partes más secas, pero no en las partes de mayor altitud y más húmedas del área de estudio. También se correlacionó negativamente con las poblaciones de ganado (r=-0.4;P<0.05). En la década de 1980, los arbustos y bosques constituían el 95 y el 5% de la cubierta terrestre, mientras que en 2008, la vegetación herbácea, los matorrales y los árboles abiertos junto con las áreas desnudas constituían el 50, 30 y 22%, respectivamente; de los cuales el 70% había sido tomado por Prosopis en 2014. Este estudio demostró que, aunque las tendencias mostraron que la población de ganado disminuyó a medida que aumentaba la variabilidad climática y la invasión de Prosopis, no hubo una correlación significativa entre los atributos, durante el período bajo estudio. A study was conducted to determine the association of climate variability, Prosopis juliflora spread, and other vegetation trends with livestock population dynamics in Kajiado County, Kenya.Monthly rainfall, mean monthly temperatures, cattle, sheep and goats populations from January 2000 to December 2014, were analyzed to determine time series trends.Normalized Difference Vegetation Index (NDVI) data derived from moderate resolution imaging spectroradiometer (MODIS) 250 m satellite imageries for 2000 to 2014 were used to determine the temporal dynamics of P. juliflora invasion in the study area.Both temperature and rainfall trends showed marked variability over the period under study.The mean monthly temperatures during the long dry season increased erratically from 33°C in 2000 to 37°C in 2014.Moreover, the rainfall during the wettest season was 600 mm in 2000 and 250 mm in 2014.During the study period, divergence from the long term mean rainfall (450 mm) decreased from 585 to 403 mm.At the same time cattle population decreased, sheep and goats populations remained static.P. juliflora invasion correlated positively (r=0.2;P<0.05) with mean monthly temperature and negatively (r=-0.4;P<0.05) with rainfall and other vegetation cover in drier parts, but not in the higher altitude and wetter parts of the study area.It also correlated negatively with cattle populations (r=-0.4;P<0.05).In the 1980's, bushlands and woodlands constituted 95 and 5% of the land cover, while in 2008, herbaceous vegetation, shrublands, and open trees together with bare areas constituted 50, 30, and 22%, respectively; out of which 70% had been taken over by Prosopis in 2014.This study demonstrated that even though the trends showed that cattle population decreased as climate variability and Prosopis invasion increased, there was no significant correlation among the attributes, over the period under study. أُجريت دراسة لتحديد الارتباط بين تقلب المناخ وانتشار بروسوبيس جوليفلورا واتجاهات الغطاء النباتي الأخرى وديناميكيات عدد الماشية في مقاطعة كاجيادو، كينيا. تم تحليل هطول الأمطار الشهري، ومتوسط درجات الحرارة الشهرية، وعدد الماشية والأغنام والماعز من يناير 2000 إلى ديسمبر 2014، لتحديد اتجاهات السلاسل الزمنية. تم تحليل بيانات مؤشر الفرق الطبيعي للغطاء النباتي (NDVI) المستمدة من مقياس طيف التصوير المعتدل الدقة (MODIS) تم استخدام صور الأقمار الصناعية 250 مترًا للفترة من 2000 إلى 2014 لتحديد الديناميكيات الزمنية لغزو P. juliflora في منطقة الدراسة. أظهرت كل من درجات الحرارة واتجاهات هطول الأمطار تقلبًا ملحوظًا خلال الفترة قيد الدراسة. زاد متوسط درجات الحرارة الشهرية خلال موسم الجفاف الطويل بشكل غير منتظم من 33 درجة مئوية في عام 2000 إلى 37 درجة مئوية في عام 2014. علاوة على ذلك، كان هطول الأمطار خلال موسم الأمطار 600 مم في عام 2000 و 250 مم في عام 2014. خلال فترة الدراسة، انخفض الاختلاف عن متوسط هطول الأمطار على المدى الطويل (450 مم) من 585 إلى 403 مم. في نفس الوقت انخفض عدد الماشية، وظلت أعداد الأغنام والماعز ثابتة. ارتبط غزو juliflora بشكل إيجابي (r=0.2 ؛P<0.05) مع المتوسط درجة الحرارة الشهرية وسلبية (r=-0.4 ؛P<0.05) مع هطول الأمطار والغطاء النباتي الآخر في الأجزاء الأكثر جفافًا، ولكن ليس في الأجزاء المرتفعة والرطبة من منطقة الدراسة. كما ارتبطت سلبًا مع أعداد الماشية (r=-0.4 ؛P<0.05). في الثمانينيات، شكلت أراضي الأدغال والغابات 95 و 5 ٪ من الغطاء الأرضي، بينما في عام 2008، شكلت النباتات العشبية وأراضي الشجيرات والأشجار المفتوحة جنبًا إلى جنب مع المناطق العارية 50 و 30 و 22 ٪ على التوالي ؛ منها 70 ٪ استولت عليها Prosopis في عام 2014. أظهرت هذه الدراسة أنه على الرغم من أن الاتجاهات أظهرت أن أعداد الماشية انخفضت مع زيادة تقلب المناخ وغزو Prosopis، لم يكن هناك ارتباط كبير بين السمات، خلال الفترة قيد الدراسة.
African Journal of E... arrow_drop_down African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: African Journals Online (AJOL)African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: CrossrefAfrican Journal of Environmental Science and TechnologyArticleLicense: CC BYData sources: UnpayWallAfrican Journal of Environmental Science and TechnologyJournalData sources: Microsoft Academic Graphadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5897/ajest2015.2034&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 8 citations 8 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert African Journal of E... arrow_drop_down African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: African Journals Online (AJOL)African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: CrossrefAfrican Journal of Environmental Science and TechnologyArticleLicense: CC BYData sources: UnpayWallAfrican Journal of Environmental Science and TechnologyJournalData sources: Microsoft Academic Graphadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5897/ajest2015.2034&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2014 France, France, KenyaPublisher:Informa UK Limited Egeru, Anthony; Osaliya, Richard; MacOpiyo, Laban; Mburu, John; Wasonga, Oliver; Barasa, Bernard; Said, Mohammed; Aleper, Daniel; Mwanjalolo, Gilbert-Jackson M;handle: 10568/52342 , 11295/91610
Semi-arid areas show climatic variability on a spatio-temporal scale. There are few studies on the long-term trends and intensity of this variability from East Africa. We used National Ocean and Atmospheric Administration re-analysis climate data (1979–2009) in this study. Rainfall exhibited a non-significant long-term trend. The climate of the area is variable (coefficient of variation-CV >35.0%) with spatio-temporal oddities in rainfall and temperature. A rise in minimum (0.9 °C), maximum (1.6 °C) and mean (1.3 °C) temperature occurred between 1979 and 2009. There were more months with climate variability indices below the threshold ( 2.6) were experienced between 2004 and 2009 than between 1984 and 2003. We consider that the use of spatio-temporal climatic informati...
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1080/00207233.2014.919729&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen 26 citations 26 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1080/00207233.2014.919729&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2014 France, France, KenyaPublisher:Informa UK Limited Egeru, Anthony; Osaliya, Richard; MacOpiyo, Laban; Mburu, John; Wasonga, Oliver; Barasa, Bernard; Said, Mohammed; Aleper, Daniel; Mwanjalolo, Gilbert-Jackson M;handle: 10568/52342 , 11295/91610
Semi-arid areas show climatic variability on a spatio-temporal scale. There are few studies on the long-term trends and intensity of this variability from East Africa. We used National Ocean and Atmospheric Administration re-analysis climate data (1979–2009) in this study. Rainfall exhibited a non-significant long-term trend. The climate of the area is variable (coefficient of variation-CV >35.0%) with spatio-temporal oddities in rainfall and temperature. A rise in minimum (0.9 °C), maximum (1.6 °C) and mean (1.3 °C) temperature occurred between 1979 and 2009. There were more months with climate variability indices below the threshold ( 2.6) were experienced between 2004 and 2009 than between 1984 and 2003. We consider that the use of spatio-temporal climatic informati...
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1080/00207233.2014.919729&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen 26 citations 26 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1080/00207233.2014.919729&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2022Publisher:Frontiers Media SA Authors: Walter Magero Wafula; Oliver Vivian Wasonga; Oscar Kipchirchir Koech; Staline Kibet;AbstractPastoralism is globally recognized as the backbone of the economy in the vast arid and semi-arid rangelands. Despite its enormous economic contribution, the system is facing a myriad of challenges, among them, land use and land tenure changes, resulting in diminished grazing land. Accompanying such changes is the conversion of traditional grazing lands into other uses such as settlements, with urbanization being one of the key drivers of pastoral system dynamics. Understanding such dynamics in the face of compounding factors such as frequent droughts linked to climate change is key in guiding policy formulation and interventions aimed at achieving a sustainable pastoral production system. This study investigated factors determining migration and settlement of pastoralists in Nairobi City of Kenya. Data was collected through a snowball sampling approach using semi-structured household questionnaires, focus group discussions (FGDs) and key informant interviews (KIIs) in five Sub-counties of Nairobi City County. A total of 144 household interviews, 6 FGDs and 16 KIIs were conducted to elucidate drivers of urban pastoralism, opportunities and challenges encountered by pastoralists in the city. A binary logistic regression model was used to analyse the determinants of their migration. Results show that search for pasture and water resources, and alternative markets especially during droughts, are the main reasons for pastoralists’ migration to the city. In addition, educated herders were found to be more likely to migrate to the city as they pursue wage employment. Whereas these findings revealed that migration to the city exposes pastoralists to diverse livelihood opportunities, they are equally faced by a number of challenges - mainly road accidents involving livestock, frequent land displacements to pave way for development of real estates, and livestock poisoning from sewage and garbage wastes. There is a need for policy and regulatory interventions to recognize pastoralism alongside other forms of urban farming and addressing challenges facing sustainable pastoral production.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00204-6&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 14 citations 14 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00204-6&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2022Publisher:Frontiers Media SA Authors: Walter Magero Wafula; Oliver Vivian Wasonga; Oscar Kipchirchir Koech; Staline Kibet;AbstractPastoralism is globally recognized as the backbone of the economy in the vast arid and semi-arid rangelands. Despite its enormous economic contribution, the system is facing a myriad of challenges, among them, land use and land tenure changes, resulting in diminished grazing land. Accompanying such changes is the conversion of traditional grazing lands into other uses such as settlements, with urbanization being one of the key drivers of pastoral system dynamics. Understanding such dynamics in the face of compounding factors such as frequent droughts linked to climate change is key in guiding policy formulation and interventions aimed at achieving a sustainable pastoral production system. This study investigated factors determining migration and settlement of pastoralists in Nairobi City of Kenya. Data was collected through a snowball sampling approach using semi-structured household questionnaires, focus group discussions (FGDs) and key informant interviews (KIIs) in five Sub-counties of Nairobi City County. A total of 144 household interviews, 6 FGDs and 16 KIIs were conducted to elucidate drivers of urban pastoralism, opportunities and challenges encountered by pastoralists in the city. A binary logistic regression model was used to analyse the determinants of their migration. Results show that search for pasture and water resources, and alternative markets especially during droughts, are the main reasons for pastoralists’ migration to the city. In addition, educated herders were found to be more likely to migrate to the city as they pursue wage employment. Whereas these findings revealed that migration to the city exposes pastoralists to diverse livelihood opportunities, they are equally faced by a number of challenges - mainly road accidents involving livestock, frequent land displacements to pave way for development of real estates, and livestock poisoning from sewage and garbage wastes. There is a need for policy and regulatory interventions to recognize pastoralism alongside other forms of urban farming and addressing challenges facing sustainable pastoral production.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00204-6&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 14 citations 14 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00204-6&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2023 SwitzerlandPublisher:Wiley Peggy Ngila; David Chiawo; Margaret Awuor Owuor; Oliver Vivian Wasonga; Jane Wangui Mugo;pmid: 37664500
pmc: PMC10468911
AbstractRaptors face global threats like electrocution, collisions, and habitat fragmentation. Many species remain understudied, and their distribution patterns are unknown. Understanding their current and future distribution is crucial for conservation. Protecting these top predators requires knowledge of their spatial distribution and environmental influences. This study addresses knowledge gaps in raptor habitats and distributions in Kenya, considering current and future climate changes. Using species distribution models and occurrence data from the Global Biodiversity Information Facility, we evaluated suitable habitats for four endangered Kenyan raptor species: Martial eagle, Secretarybird, Bateleur, and Steppe Eagle. We assessed the impact of climatic predictors on their distribution, considering two climate change scenarios for 2020–2040. Our findings reveal that raptor distribution in Kenya is predominantly concentrated in the southwestern region, extending into the central region of the country. The most significant predictors of raptor species distribution varied for each species, with Steppe eagle and Secretarybird being highly influenced by precipitation during the warmest quarter, Martial eagle being influenced by mean temperature during the driest quarter, and Bateleur being primarily influenced by precipitation during the coldest quarter. When projecting our model into the climate change scenarios for 2020–2040, all species except the Bateleur exhibited a negative range shift. The results of our study suggest that climate change may have adverse impacts on the raptor species examined. In light of these findings, we recommend implementing targeted monitoring and conducting surveys in accordance with our current model predictions. Specifically, our focus should be on monitoring areas that exhibit the highest climate suitability, as these areas are likely to undergo significant shifts in the near future. By conducting regular monitoring and engaging in further research, we can enhance our understanding of these raptor species and gather valuable data to improve the accuracy and reliability of our model predictions.
Bern Open Repository... arrow_drop_down Bern Open Repository and Information System (BORIS)Article . 2023 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/ece3.10443&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 10 citations 10 popularity Average influence Average impulse Top 10% Powered by BIP!more_vert Bern Open Repository... arrow_drop_down Bern Open Repository and Information System (BORIS)Article . 2023 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/ece3.10443&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2023 SwitzerlandPublisher:Wiley Peggy Ngila; David Chiawo; Margaret Awuor Owuor; Oliver Vivian Wasonga; Jane Wangui Mugo;pmid: 37664500
pmc: PMC10468911
AbstractRaptors face global threats like electrocution, collisions, and habitat fragmentation. Many species remain understudied, and their distribution patterns are unknown. Understanding their current and future distribution is crucial for conservation. Protecting these top predators requires knowledge of their spatial distribution and environmental influences. This study addresses knowledge gaps in raptor habitats and distributions in Kenya, considering current and future climate changes. Using species distribution models and occurrence data from the Global Biodiversity Information Facility, we evaluated suitable habitats for four endangered Kenyan raptor species: Martial eagle, Secretarybird, Bateleur, and Steppe Eagle. We assessed the impact of climatic predictors on their distribution, considering two climate change scenarios for 2020–2040. Our findings reveal that raptor distribution in Kenya is predominantly concentrated in the southwestern region, extending into the central region of the country. The most significant predictors of raptor species distribution varied for each species, with Steppe eagle and Secretarybird being highly influenced by precipitation during the warmest quarter, Martial eagle being influenced by mean temperature during the driest quarter, and Bateleur being primarily influenced by precipitation during the coldest quarter. When projecting our model into the climate change scenarios for 2020–2040, all species except the Bateleur exhibited a negative range shift. The results of our study suggest that climate change may have adverse impacts on the raptor species examined. In light of these findings, we recommend implementing targeted monitoring and conducting surveys in accordance with our current model predictions. Specifically, our focus should be on monitoring areas that exhibit the highest climate suitability, as these areas are likely to undergo significant shifts in the near future. By conducting regular monitoring and engaging in further research, we can enhance our understanding of these raptor species and gather valuable data to improve the accuracy and reliability of our model predictions.
Bern Open Repository... arrow_drop_down Bern Open Repository and Information System (BORIS)Article . 2023 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/ece3.10443&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 10 citations 10 popularity Average influence Average impulse Top 10% Powered by BIP!more_vert Bern Open Repository... arrow_drop_down Bern Open Repository and Information System (BORIS)Article . 2023 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/ece3.10443&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2023Publisher:Universidad Autonoma de Yucatan. Facultad de Medicina Veterinaria y Zootecnia Authors: Armara Macimiliam Galwab; Oscar Kipchirchir Koech; Oliver Vivian Wasonga; Godfrey Kironchi;<p><strong>Background.</strong> Climate change is a global phenomenon, with varying indicators and impacts from one region to another. The impacts of the changing climate are high in developing countries that are mainly dependent on climate-driven economic sectors such as pastoral and agro-pastoral livelihoods. <strong>Objective.</strong> Analyze the temporal trend, the variability in temperature and precipitation, and the relationship between both parameters to determine the influence of the El Niño phenomenon in Marsabit County, Kenya, from 1981 to 2021. <strong>Methodology.</strong> Daily rainfall and temperature data for the four study locations (Maikona, Kargi, Dakabaricha, and Sololo) were obtained. The analysis of extremes was the main method used in the analysis of the temporal and spatial variability of rainfall and temperature to establish the frequency and magnitude of climate variability in the study area. The seasonal mean plus or minus 1 Standard deviation for the entire period of study was used in the analysis of extremes. <strong>Results.</strong> Findings from trend analysis showed that rainfall trends have significantly increased in Marsabit County. Further, results on seasonal trends and variability of rainfall showed that March-April-May rainfall has been decreasing over the years. Below average rainfall has been experienced in Maikona in 2000 and 2011 with a magnitude of -42.9 mm, and -39.3 mm, respectively, while below average rainfall has been experienced in Kargi in 2000, 2009, 2011, and 2012 with a magnitude of -41.7 mm, -24.2 mm, -35.3 mm, and -34.3 mm, respectively. Analysis of the temperature trends and variability showed that both night and day temperatures have significantly increased over the years in Marsabit County. The magnitude of warming was found to be double that of cooling. The regression analysis further showed that there exists a negative correlation between temperatures and rainfall, implying that generally, rainfall decreases with increasing temperatures. <strong>Implications.</strong> This finding is important because it could help policymakers and people working on development in Marsabit County see what temperature and precipitation changes are happening locally. This could help them plan for climate change better. Both pastoral and agro-pastoral areas have been affected by both El Niño and La Niña activities, with the El Niño years recording the highest amounts of rainfall while the La Niña years recording the lowest amounts. <strong>Conclusion</strong><strong>s</strong><strong>.</strong> This study recommends the use of rainwater harvesting during the October to December Season to take advantage of the increasing Trends and flood episodes associated with high magnitudes and frequencies of above average rainfall and use the same to cope with reduced rainfall in the March to May season. </p>
Tropical and Subtrop... arrow_drop_down Tropical and Subtropical AgroecosystemsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.56369/tsaes.4810&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Tropical and Subtrop... arrow_drop_down Tropical and Subtropical AgroecosystemsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.56369/tsaes.4810&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2023Publisher:Universidad Autonoma de Yucatan. Facultad de Medicina Veterinaria y Zootecnia Authors: Armara Macimiliam Galwab; Oscar Kipchirchir Koech; Oliver Vivian Wasonga; Godfrey Kironchi;<p><strong>Background.</strong> Climate change is a global phenomenon, with varying indicators and impacts from one region to another. The impacts of the changing climate are high in developing countries that are mainly dependent on climate-driven economic sectors such as pastoral and agro-pastoral livelihoods. <strong>Objective.</strong> Analyze the temporal trend, the variability in temperature and precipitation, and the relationship between both parameters to determine the influence of the El Niño phenomenon in Marsabit County, Kenya, from 1981 to 2021. <strong>Methodology.</strong> Daily rainfall and temperature data for the four study locations (Maikona, Kargi, Dakabaricha, and Sololo) were obtained. The analysis of extremes was the main method used in the analysis of the temporal and spatial variability of rainfall and temperature to establish the frequency and magnitude of climate variability in the study area. The seasonal mean plus or minus 1 Standard deviation for the entire period of study was used in the analysis of extremes. <strong>Results.</strong> Findings from trend analysis showed that rainfall trends have significantly increased in Marsabit County. Further, results on seasonal trends and variability of rainfall showed that March-April-May rainfall has been decreasing over the years. Below average rainfall has been experienced in Maikona in 2000 and 2011 with a magnitude of -42.9 mm, and -39.3 mm, respectively, while below average rainfall has been experienced in Kargi in 2000, 2009, 2011, and 2012 with a magnitude of -41.7 mm, -24.2 mm, -35.3 mm, and -34.3 mm, respectively. Analysis of the temperature trends and variability showed that both night and day temperatures have significantly increased over the years in Marsabit County. The magnitude of warming was found to be double that of cooling. The regression analysis further showed that there exists a negative correlation between temperatures and rainfall, implying that generally, rainfall decreases with increasing temperatures. <strong>Implications.</strong> This finding is important because it could help policymakers and people working on development in Marsabit County see what temperature and precipitation changes are happening locally. This could help them plan for climate change better. Both pastoral and agro-pastoral areas have been affected by both El Niño and La Niña activities, with the El Niño years recording the highest amounts of rainfall while the La Niña years recording the lowest amounts. <strong>Conclusion</strong><strong>s</strong><strong>.</strong> This study recommends the use of rainwater harvesting during the October to December Season to take advantage of the increasing Trends and flood episodes associated with high magnitudes and frequencies of above average rainfall and use the same to cope with reduced rainfall in the March to May season. </p>
Tropical and Subtrop... arrow_drop_down Tropical and Subtropical AgroecosystemsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.56369/tsaes.4810&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Tropical and Subtrop... arrow_drop_down Tropical and Subtropical AgroecosystemsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.56369/tsaes.4810&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2021Publisher:Frontiers Media SA Authors: Michael Elias Mgalula; Oliver Vivian Wasonga; Christian Hülsebusch; Uwe Richter; +1 AuthorsMichael Elias Mgalula; Oliver Vivian Wasonga; Christian Hülsebusch; Uwe Richter; Oliver Hensel;AbstractMany activities from livestock husbandry contribute to emission and concentration of carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4) gases to the atmosphere; activities such as grazing, manure and urine deposited or stored on land as well as crop farming practices such as tilling, burning of biomass or crop residues. A better understanding of the extent of emission sources and carbon sequestration potential for Eastern Africa rangelands is vital for developing mitigation strategies. In this article, we review the sources of emission with a focus on land conversion for crop farming, livestock husbandry, wildfire/burning and biotic processes such as soil biota activity in the ecosystem. The trade-offs of using rangeland with an emphasis on enhancing carbon sequestration potential are also addressed. This review revealed that many practices that enhance carbon capture process show promising benefits with sink capacity of −0.004 to 13 Mg C ha−1 year−1. However, given multiple land-use and environmental dynamics in Eastern African rangelands, it is imperative to generate more data across various land management and climatic zones in order to ascertain varied sink capacity. Improving carbon sequestration in rangelands through appropriate land management is a promising cost-effective strategy to mitigate climate change. Through improved farming or grazing management practice and restoring of degraded areas, there are significant benefits to enhance carbon sequestration. As rangeland resources are multi-faceted, engaging trans-disciplinary approaches is necessary to allow analyses of co-benefits of improved management or trade-offs degrading.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00201-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 11 citations 11 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00201-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2021Publisher:Frontiers Media SA Authors: Michael Elias Mgalula; Oliver Vivian Wasonga; Christian Hülsebusch; Uwe Richter; +1 AuthorsMichael Elias Mgalula; Oliver Vivian Wasonga; Christian Hülsebusch; Uwe Richter; Oliver Hensel;AbstractMany activities from livestock husbandry contribute to emission and concentration of carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4) gases to the atmosphere; activities such as grazing, manure and urine deposited or stored on land as well as crop farming practices such as tilling, burning of biomass or crop residues. A better understanding of the extent of emission sources and carbon sequestration potential for Eastern Africa rangelands is vital for developing mitigation strategies. In this article, we review the sources of emission with a focus on land conversion for crop farming, livestock husbandry, wildfire/burning and biotic processes such as soil biota activity in the ecosystem. The trade-offs of using rangeland with an emphasis on enhancing carbon sequestration potential are also addressed. This review revealed that many practices that enhance carbon capture process show promising benefits with sink capacity of −0.004 to 13 Mg C ha−1 year−1. However, given multiple land-use and environmental dynamics in Eastern African rangelands, it is imperative to generate more data across various land management and climatic zones in order to ascertain varied sink capacity. Improving carbon sequestration in rangelands through appropriate land management is a promising cost-effective strategy to mitigate climate change. Through improved farming or grazing management practice and restoring of degraded areas, there are significant benefits to enhance carbon sequestration. As rangeland resources are multi-faceted, engaging trans-disciplinary approaches is necessary to allow analyses of co-benefits of improved management or trade-offs degrading.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00201-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 11 citations 11 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00201-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2015 KenyaPublisher:Springer Science and Business Media LLC Francis Opiyo; Francis Opiyo; Richard Munang; Janpeter Schilling; Oliver Wasonga; Moses Nyangito;handle: 11295/91622
Cette étude met en évidence les caractéristiques de la sécheresse et les nombreuses réponses aux stress liés à la sécheresse employées par les éleveurs de Turkana du nord-ouest du Kenya. De multiples sources de données, y compris des entretiens socio-économiques avec 302 ménages, des discussions de groupe et des entretiens informels avec des éleveurs, ont été utilisées pour capturer divers aspects de l'adaptation et des pratiques d'adaptation à la sécheresse et à la sécheresse. L'indice normalisé des précipitations dérivé des données sur les précipitations à long terme obtenues du Service météorologique du Kenya a été utilisé pour quantifier différents degrés d'intensité de la sécheresse entre 1950 et 2012. Les résultats ont révélé que les sécheresses extrêmes étaient de plus en plus fréquentes et ont eu un impact négatif sur les moyens de subsistance pastoraux. Afin de s'adapter ou de faire face aux anomalies climatiques, les ménages utilisent diverses stratégies. En plus des mécanismes traditionnels d'adaptation à court terme, les stratégies d'adaptation à long terme utilisées comprennent la diversification des sources de revenus ; la mobilité du bétail pour suivre les ressources en fourrage et en eau ; la diversification de la composition des troupeaux pour bénéficier de la tolérance variée à la sécheresse et aux maladies, ainsi que de la fécondité de diverses espèces animales ; et l'envoi des enfants à l'école pour une éducation formelle en tant qu'investissement à long terme qui devrait être remboursé par les revenus de l'emploi. Les politiques et les interventions de développement qui réduisent les risques, diminuent les contraintes de subsistance et élargissent les possibilités d'accroître la résilience des ménages à la sécheresse sont des compléments essentiels aux stratégies pastorales existantes. Este estudio destaca las características de la sequía y las muchas respuestas al estrés por sequía empleadas por los pastores Turkana del noroeste de Kenia. Se utilizaron múltiples fuentes de datos, incluidas entrevistas socioeconómicas con 302 hogares, discusiones de grupos focales y entrevistas informales con pastores para capturar diversos aspectos de la sequía y la adaptación a la sequía y las prácticas de afrontamiento. El índice de precipitación estandarizado derivado de los datos de precipitación a largo plazo obtenidos del Servicio Meteorológico de Kenia se utilizó para cuantificar los diferentes grados de intensidad de la sequía entre 1950 y 2012. Los resultados revelaron que los eventos de sequía extrema eran cada vez más frecuentes y han tenido un impacto negativo en los medios de vida pastorales. Para adaptarse o hacer frente a las anomalías climáticas, los hogares están utilizando una variedad de estrategias. Además de los mecanismos tradicionales de supervivencia a corto plazo, las estrategias de adaptación a largo plazo utilizadas incluyen la diversificación de las fuentes de sustento; la movilidad del ganado para rastrear el forraje y los recursos hídricos; la diversificación de la composición del rebaño para beneficiarse de la variada tolerancia a la sequía y las enfermedades, así como la fecundidad de diversas especies de ganado; y el envío de niños a la escuela para la educación formal como una inversión a largo plazo que se espera que pague a través de los ingresos del empleo. Las políticas y las intervenciones de desarrollo que reducen los riesgos, disminuyen las limitaciones de los medios de subsistencia y amplían las oportunidades para aumentar la resiliencia de los hogares a la sequía son complementos críticos de las estrategias pastorales existentes. This study highlights drought characteristics and the many responses to drought stresses employed by Turkana pastoralists of northwestern Kenya. Multiple data sources, including socioeconomic interviews with 302 households, focus group discussions, and informal interviews with pastoralists were used to capture various aspects of drought and drought adaptation and coping practices. Standardized precipitation index derived from long-term rainfall data obtained from the Kenya Meteorological Service was used to quantify different degrees of drought intensity between 1950 and 2012. Results revealed that extreme drought events were increasingly frequent, and have impacted negatively on pastoral livelihoods. In order to adapt to or cope with climatic anomalies, households are using a variety of strategies. In addition to the traditional short-term coping mechanisms, the long-term adaptation strategies used include diversification of livelihood sources; livestock mobility to track forage and water resources; diversification of herd composition to benefit from the varied drought and disease tolerance, as well as fecundity of diverse livestock species; and sending children to school for formal education as a long term investment expected to pay back through income from employment. Policies and development interventions that reduce risks, diminish livelihood constraints, and expand opportunities for increased household resilience to drought are critical complements to the existing pastoral strategies. تسلط هذه الدراسة الضوء على خصائص الجفاف والاستجابات العديدة لضغوط الجفاف التي يستخدمها رعاة توركانا في شمال غرب كينيا. تم استخدام مصادر بيانات متعددة، بما في ذلك المقابلات الاجتماعية والاقتصادية مع 302 أسرة، ومناقشات مجموعات التركيز، والمقابلات غير الرسمية مع الرعاة لالتقاط مختلف جوانب التكيف مع الجفاف والجفاف وممارسات التكيف. تم استخدام مؤشر هطول الأمطار الموحد المستمد من بيانات هطول الأمطار طويلة الأجل التي تم الحصول عليها من دائرة الأرصاد الجوية الكينية لقياس درجات مختلفة من شدة الجفاف بين عامي 1950 و 2012. كشفت النتائج أن أحداث الجفاف الشديد كانت متكررة بشكل متزايد، وأثرت سلبًا على سبل العيش الرعوية. من أجل التكيف مع الشذوذ المناخي أو التعامل معه، تستخدم الأسر مجموعة متنوعة من الاستراتيجيات. بالإضافة إلى آليات المواجهة التقليدية قصيرة الأجل، تشمل استراتيجيات التكيف طويلة الأجل المستخدمة تنويع مصادر سبل العيش ؛ وتنقل الماشية لتتبع العلف والموارد المائية ؛ وتنويع تركيبة القطيع للاستفادة من تنوع الجفاف وتحمل الأمراض، وكذلك خصوبة أنواع الماشية المتنوعة ؛ وإرسال الأطفال إلى المدرسة للتعليم الرسمي كاستثمار طويل الأجل من المتوقع أن يسدد من خلال الدخل من العمل. تعد السياسات والتدخلات الإنمائية التي تقلل من المخاطر، وتقلل من قيود سبل العيش، وتوسع الفرص لزيادة قدرة الأسرة على مواجهة الجفاف مكملة حاسمة للاستراتيجيات الرعوية الحالية.
International Journa... arrow_drop_down International Journal of Disaster Risk ScienceArticle . 2015 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s13753-015-0063-4&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 199 citations 199 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!more_vert International Journa... arrow_drop_down International Journal of Disaster Risk ScienceArticle . 2015 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s13753-015-0063-4&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2015 KenyaPublisher:Springer Science and Business Media LLC Francis Opiyo; Francis Opiyo; Richard Munang; Janpeter Schilling; Oliver Wasonga; Moses Nyangito;handle: 11295/91622
Cette étude met en évidence les caractéristiques de la sécheresse et les nombreuses réponses aux stress liés à la sécheresse employées par les éleveurs de Turkana du nord-ouest du Kenya. De multiples sources de données, y compris des entretiens socio-économiques avec 302 ménages, des discussions de groupe et des entretiens informels avec des éleveurs, ont été utilisées pour capturer divers aspects de l'adaptation et des pratiques d'adaptation à la sécheresse et à la sécheresse. L'indice normalisé des précipitations dérivé des données sur les précipitations à long terme obtenues du Service météorologique du Kenya a été utilisé pour quantifier différents degrés d'intensité de la sécheresse entre 1950 et 2012. Les résultats ont révélé que les sécheresses extrêmes étaient de plus en plus fréquentes et ont eu un impact négatif sur les moyens de subsistance pastoraux. Afin de s'adapter ou de faire face aux anomalies climatiques, les ménages utilisent diverses stratégies. En plus des mécanismes traditionnels d'adaptation à court terme, les stratégies d'adaptation à long terme utilisées comprennent la diversification des sources de revenus ; la mobilité du bétail pour suivre les ressources en fourrage et en eau ; la diversification de la composition des troupeaux pour bénéficier de la tolérance variée à la sécheresse et aux maladies, ainsi que de la fécondité de diverses espèces animales ; et l'envoi des enfants à l'école pour une éducation formelle en tant qu'investissement à long terme qui devrait être remboursé par les revenus de l'emploi. Les politiques et les interventions de développement qui réduisent les risques, diminuent les contraintes de subsistance et élargissent les possibilités d'accroître la résilience des ménages à la sécheresse sont des compléments essentiels aux stratégies pastorales existantes. Este estudio destaca las características de la sequía y las muchas respuestas al estrés por sequía empleadas por los pastores Turkana del noroeste de Kenia. Se utilizaron múltiples fuentes de datos, incluidas entrevistas socioeconómicas con 302 hogares, discusiones de grupos focales y entrevistas informales con pastores para capturar diversos aspectos de la sequía y la adaptación a la sequía y las prácticas de afrontamiento. El índice de precipitación estandarizado derivado de los datos de precipitación a largo plazo obtenidos del Servicio Meteorológico de Kenia se utilizó para cuantificar los diferentes grados de intensidad de la sequía entre 1950 y 2012. Los resultados revelaron que los eventos de sequía extrema eran cada vez más frecuentes y han tenido un impacto negativo en los medios de vida pastorales. Para adaptarse o hacer frente a las anomalías climáticas, los hogares están utilizando una variedad de estrategias. Además de los mecanismos tradicionales de supervivencia a corto plazo, las estrategias de adaptación a largo plazo utilizadas incluyen la diversificación de las fuentes de sustento; la movilidad del ganado para rastrear el forraje y los recursos hídricos; la diversificación de la composición del rebaño para beneficiarse de la variada tolerancia a la sequía y las enfermedades, así como la fecundidad de diversas especies de ganado; y el envío de niños a la escuela para la educación formal como una inversión a largo plazo que se espera que pague a través de los ingresos del empleo. Las políticas y las intervenciones de desarrollo que reducen los riesgos, disminuyen las limitaciones de los medios de subsistencia y amplían las oportunidades para aumentar la resiliencia de los hogares a la sequía son complementos críticos de las estrategias pastorales existentes. This study highlights drought characteristics and the many responses to drought stresses employed by Turkana pastoralists of northwestern Kenya. Multiple data sources, including socioeconomic interviews with 302 households, focus group discussions, and informal interviews with pastoralists were used to capture various aspects of drought and drought adaptation and coping practices. Standardized precipitation index derived from long-term rainfall data obtained from the Kenya Meteorological Service was used to quantify different degrees of drought intensity between 1950 and 2012. Results revealed that extreme drought events were increasingly frequent, and have impacted negatively on pastoral livelihoods. In order to adapt to or cope with climatic anomalies, households are using a variety of strategies. In addition to the traditional short-term coping mechanisms, the long-term adaptation strategies used include diversification of livelihood sources; livestock mobility to track forage and water resources; diversification of herd composition to benefit from the varied drought and disease tolerance, as well as fecundity of diverse livestock species; and sending children to school for formal education as a long term investment expected to pay back through income from employment. Policies and development interventions that reduce risks, diminish livelihood constraints, and expand opportunities for increased household resilience to drought are critical complements to the existing pastoral strategies. تسلط هذه الدراسة الضوء على خصائص الجفاف والاستجابات العديدة لضغوط الجفاف التي يستخدمها رعاة توركانا في شمال غرب كينيا. تم استخدام مصادر بيانات متعددة، بما في ذلك المقابلات الاجتماعية والاقتصادية مع 302 أسرة، ومناقشات مجموعات التركيز، والمقابلات غير الرسمية مع الرعاة لالتقاط مختلف جوانب التكيف مع الجفاف والجفاف وممارسات التكيف. تم استخدام مؤشر هطول الأمطار الموحد المستمد من بيانات هطول الأمطار طويلة الأجل التي تم الحصول عليها من دائرة الأرصاد الجوية الكينية لقياس درجات مختلفة من شدة الجفاف بين عامي 1950 و 2012. كشفت النتائج أن أحداث الجفاف الشديد كانت متكررة بشكل متزايد، وأثرت سلبًا على سبل العيش الرعوية. من أجل التكيف مع الشذوذ المناخي أو التعامل معه، تستخدم الأسر مجموعة متنوعة من الاستراتيجيات. بالإضافة إلى آليات المواجهة التقليدية قصيرة الأجل، تشمل استراتيجيات التكيف طويلة الأجل المستخدمة تنويع مصادر سبل العيش ؛ وتنقل الماشية لتتبع العلف والموارد المائية ؛ وتنويع تركيبة القطيع للاستفادة من تنوع الجفاف وتحمل الأمراض، وكذلك خصوبة أنواع الماشية المتنوعة ؛ وإرسال الأطفال إلى المدرسة للتعليم الرسمي كاستثمار طويل الأجل من المتوقع أن يسدد من خلال الدخل من العمل. تعد السياسات والتدخلات الإنمائية التي تقلل من المخاطر، وتقلل من قيود سبل العيش، وتوسع الفرص لزيادة قدرة الأسرة على مواجهة الجفاف مكملة حاسمة للاستراتيجيات الرعوية الحالية.
International Journa... arrow_drop_down International Journal of Disaster Risk ScienceArticle . 2015 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s13753-015-0063-4&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 199 citations 199 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!more_vert International Journa... arrow_drop_down International Journal of Disaster Risk ScienceArticle . 2015 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s13753-015-0063-4&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2014 KenyaPublisher:Frontiers Media SA Funded by:WTWTAuthors: Moses Nyangito; Oliver Wasonga; Francis Opiyo; Francis Opiyo;handle: 11295/74597
Cette étude utilise des outils statistiques et économétriques pour mesurer la vulnérabilité des ménages dans les pâturages du Kenya. Il a pris en compte 27 indicateurs socio-économiques et biophysiques obtenus à partir des entretiens approfondis de 302 ménages pour refléter les composantes de la vulnérabilité climatique : capacité d'adaptation, exposition et sensibilité. Le cadre théorique utilisé combine l'exposition et la sensibilité pour produire un impact potentiel, qui a ensuite été comparé à la capacité d'adaptation afin de générer une mesure globale de la vulnérabilité. L'analyse en composantes principales (ACP) a été utilisée pour élaborer des pondérations pour différents indicateurs et produire un indice de vulnérabilité des ménages (IVH) afin de classer les ménages en fonction de leur niveau de vulnérabilité. Afin de comprendre les déterminants de la vulnérabilité aux stress induits par le climat, un modèle probit ordonné a été utilisé avec des variables prédictives. Les résultats montrent que 27 % des ménages étaient très vulnérables, 44 % étaient modérément vulnérables et 29 % des ménages étaient moins vulnérables aux stress induits par le climat. Les estimations factorielles du modèle probit ont en outre révélé que les principaux déterminants de la vulnérabilité pastorale sont le sexe du chef de ménage, l'âge du chef de ménage, le nombre de personnes à charge, l'état matrimonial, les liens sociaux, l'accès aux services de vulgarisation et aux informations d'alerte précoce, la source complémentaire de revenus, la taille et la diversité du troupeau, la structure du troupeau, la mobilité du troupeau, la distance des marchés, la situation professionnelle, les stratégies d'adaptation et l'accès au crédit. Par conséquent, les politiques qui s'attaquent à ces déterminants de la vulnérabilité en mettant l'accent sur l'autonomisation des femmes, l'éducation et la diversification des revenus sont susceptibles d'améliorer la résilience des ménages pastoraux. Este estudio utiliza herramientas estadísticas y econométricas para medir la vulnerabilidad de los hogares en los pastizales de Kenia. Se consideraron 27 indicadores socioeconómicos y biofísicos obtenidos de 302 entrevistas en profundidad de hogares para reflejar los componentes de vulnerabilidad climática: capacidad de adaptación, exposición y sensibilidad. El marco teórico utilizado combina la exposición y la sensibilidad para producir un impacto potencial, que luego se comparó con la capacidad de adaptación para generar una medida general de vulnerabilidad. El análisis de componentes principales (PCA) se utilizó para desarrollar ponderaciones para diferentes indicadores y producir un índice de vulnerabilidad de los hogares (HVI) para clasificar los hogares de acuerdo con su nivel de vulnerabilidad. Para comprender los determinantes de la vulnerabilidad a las tensiones inducidas por el clima, se empleó un modelo probit ordenado con variables predictoras. Los resultados muestran que el 27% de los hogares eran altamente vulnerables, el 44% eran moderadamente vulnerables y el 29% de los hogares eran menos vulnerables a las tensiones inducidas por el clima. Las estimaciones de los factores del modelo probit revelaron además que los principales determinantes de la vulnerabilidad pastoral son el sexo del jefe del hogar, la edad del jefe del hogar, el número de dependientes, el estado civil, los vínculos sociales, el acceso a los servicios de extensión y la información de alerta temprana, la fuente complementaria de ingresos, el tamaño y la diversidad del rebaño, la estructura del rebaño, la movilidad del rebaño, la distancia a los mercados, la situación laboral, las estrategias de afrontamiento y el acceso al crédito. Por lo tanto, es probable que las políticas que abordan estos determinantes de la vulnerabilidad con énfasis en el empoderamiento de las mujeres, la educación y la diversificación de los ingresos mejoren la resiliencia de los hogares pastoriles. This study uses statistical and econometric tools to measure households' vulnerability in pastoral rangelands of Kenya. It considered 27 socio-economic and biophysical indicators obtained from 302 households' in-depth interviews to reflect climate vulnerability components: adaptive capacity, exposure and sensitivity. The theoretical framework used combines exposure and sensitivity to produce potential impact, which was then compared with adaptive capacity in order to generate an overall measure of vulnerability. Principal component analysis (PCA) was used to develop weights for different indicators and produce a household vulnerability index (HVI) so as to classify households according to their level of vulnerability. In order to understand the determinants of vulnerability to climate-induced stresses, an ordered probit model was employed with predictor variables. The results show that 27% of households were highly vulnerable, 44% were moderately vulnerable and 29% of households were less vulnerable to climate-induced stresses. Factor estimates of the probit model further revealed that the main determinants of pastoral vulnerability are sex of household head, age of household head, number of dependents, marital status, social linkages, access to extension services and early warning information, complementary source of income, herd size and diversity, herd structure, herd mobility, distance to markets, employment status, coping strategies and access to credit. Therefore, policies that address these determinants of vulnerability with emphasis on women's empowerment, education and income diversifications are likely to enhance resilience of pastoral households. تستخدم هذه الدراسة أدوات إحصائية واقتصادية قياسية لقياس ضعف الأسر في المراعي الرعوية في كينيا. ونظر في 27 مؤشرًا اجتماعيًا واقتصاديًا وبيوفيزيائيًا تم الحصول عليها من المقابلات المتعمقة التي أجرتها 302 أسرة لتعكس مكونات قابلية التأثر بالمناخ: القدرة على التكيف والتعرض والحساسية. يجمع الإطار النظري المستخدم بين التعرض والحساسية لإحداث تأثير محتمل، والذي تمت مقارنته بعد ذلك بالقدرة على التكيف من أجل توليد مقياس شامل للضعف. تم استخدام تحليل المكونات الرئيسية (PCA) لوضع أوزان لمؤشرات مختلفة وإنتاج مؤشر ضعف الأسرة (HVI) لتصنيف الأسر وفقًا لمستوى ضعفها. من أجل فهم محددات التعرض للضغوط الناجمة عن المناخ، تم استخدام نموذج بروبيت مرتب مع متغيرات التنبؤ. تظهر النتائج أن 27 ٪ من الأسر كانت شديدة الضعف، و 44 ٪ كانت ضعيفة بشكل معتدل و 29 ٪ من الأسر كانت أقل عرضة للضغوط الناجمة عن المناخ. وكشفت تقديرات العوامل لنموذج بروبيت كذلك أن المحددات الرئيسية للضعف الرعوي هي جنس رب الأسرة، وعمر رب الأسرة، وعدد المعالين، والحالة الاجتماعية، والروابط الاجتماعية، والوصول إلى خدمات الإرشاد ومعلومات الإنذار المبكر، ومصدر الدخل التكميلي، وحجم القطيع وتنوعه، وهيكل القطيع، وحركة القطيع، والمسافة إلى الأسواق، وحالة العمالة، واستراتيجيات المواجهة، والوصول إلى الائتمان. لذلك، من المرجح أن تعزز السياسات التي تعالج محددات الضعف هذه مع التركيز على تمكين المرأة والتعليم وتنويع الدخل قدرة الأسر الرعوية على الصمود.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-014-0010-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 113 citations 113 popularity Top 1% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-014-0010-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2014 KenyaPublisher:Frontiers Media SA Funded by:WTWTAuthors: Moses Nyangito; Oliver Wasonga; Francis Opiyo; Francis Opiyo;handle: 11295/74597
Cette étude utilise des outils statistiques et économétriques pour mesurer la vulnérabilité des ménages dans les pâturages du Kenya. Il a pris en compte 27 indicateurs socio-économiques et biophysiques obtenus à partir des entretiens approfondis de 302 ménages pour refléter les composantes de la vulnérabilité climatique : capacité d'adaptation, exposition et sensibilité. Le cadre théorique utilisé combine l'exposition et la sensibilité pour produire un impact potentiel, qui a ensuite été comparé à la capacité d'adaptation afin de générer une mesure globale de la vulnérabilité. L'analyse en composantes principales (ACP) a été utilisée pour élaborer des pondérations pour différents indicateurs et produire un indice de vulnérabilité des ménages (IVH) afin de classer les ménages en fonction de leur niveau de vulnérabilité. Afin de comprendre les déterminants de la vulnérabilité aux stress induits par le climat, un modèle probit ordonné a été utilisé avec des variables prédictives. Les résultats montrent que 27 % des ménages étaient très vulnérables, 44 % étaient modérément vulnérables et 29 % des ménages étaient moins vulnérables aux stress induits par le climat. Les estimations factorielles du modèle probit ont en outre révélé que les principaux déterminants de la vulnérabilité pastorale sont le sexe du chef de ménage, l'âge du chef de ménage, le nombre de personnes à charge, l'état matrimonial, les liens sociaux, l'accès aux services de vulgarisation et aux informations d'alerte précoce, la source complémentaire de revenus, la taille et la diversité du troupeau, la structure du troupeau, la mobilité du troupeau, la distance des marchés, la situation professionnelle, les stratégies d'adaptation et l'accès au crédit. Par conséquent, les politiques qui s'attaquent à ces déterminants de la vulnérabilité en mettant l'accent sur l'autonomisation des femmes, l'éducation et la diversification des revenus sont susceptibles d'améliorer la résilience des ménages pastoraux. Este estudio utiliza herramientas estadísticas y econométricas para medir la vulnerabilidad de los hogares en los pastizales de Kenia. Se consideraron 27 indicadores socioeconómicos y biofísicos obtenidos de 302 entrevistas en profundidad de hogares para reflejar los componentes de vulnerabilidad climática: capacidad de adaptación, exposición y sensibilidad. El marco teórico utilizado combina la exposición y la sensibilidad para producir un impacto potencial, que luego se comparó con la capacidad de adaptación para generar una medida general de vulnerabilidad. El análisis de componentes principales (PCA) se utilizó para desarrollar ponderaciones para diferentes indicadores y producir un índice de vulnerabilidad de los hogares (HVI) para clasificar los hogares de acuerdo con su nivel de vulnerabilidad. Para comprender los determinantes de la vulnerabilidad a las tensiones inducidas por el clima, se empleó un modelo probit ordenado con variables predictoras. Los resultados muestran que el 27% de los hogares eran altamente vulnerables, el 44% eran moderadamente vulnerables y el 29% de los hogares eran menos vulnerables a las tensiones inducidas por el clima. Las estimaciones de los factores del modelo probit revelaron además que los principales determinantes de la vulnerabilidad pastoral son el sexo del jefe del hogar, la edad del jefe del hogar, el número de dependientes, el estado civil, los vínculos sociales, el acceso a los servicios de extensión y la información de alerta temprana, la fuente complementaria de ingresos, el tamaño y la diversidad del rebaño, la estructura del rebaño, la movilidad del rebaño, la distancia a los mercados, la situación laboral, las estrategias de afrontamiento y el acceso al crédito. Por lo tanto, es probable que las políticas que abordan estos determinantes de la vulnerabilidad con énfasis en el empoderamiento de las mujeres, la educación y la diversificación de los ingresos mejoren la resiliencia de los hogares pastoriles. This study uses statistical and econometric tools to measure households' vulnerability in pastoral rangelands of Kenya. It considered 27 socio-economic and biophysical indicators obtained from 302 households' in-depth interviews to reflect climate vulnerability components: adaptive capacity, exposure and sensitivity. The theoretical framework used combines exposure and sensitivity to produce potential impact, which was then compared with adaptive capacity in order to generate an overall measure of vulnerability. Principal component analysis (PCA) was used to develop weights for different indicators and produce a household vulnerability index (HVI) so as to classify households according to their level of vulnerability. In order to understand the determinants of vulnerability to climate-induced stresses, an ordered probit model was employed with predictor variables. The results show that 27% of households were highly vulnerable, 44% were moderately vulnerable and 29% of households were less vulnerable to climate-induced stresses. Factor estimates of the probit model further revealed that the main determinants of pastoral vulnerability are sex of household head, age of household head, number of dependents, marital status, social linkages, access to extension services and early warning information, complementary source of income, herd size and diversity, herd structure, herd mobility, distance to markets, employment status, coping strategies and access to credit. Therefore, policies that address these determinants of vulnerability with emphasis on women's empowerment, education and income diversifications are likely to enhance resilience of pastoral households. تستخدم هذه الدراسة أدوات إحصائية واقتصادية قياسية لقياس ضعف الأسر في المراعي الرعوية في كينيا. ونظر في 27 مؤشرًا اجتماعيًا واقتصاديًا وبيوفيزيائيًا تم الحصول عليها من المقابلات المتعمقة التي أجرتها 302 أسرة لتعكس مكونات قابلية التأثر بالمناخ: القدرة على التكيف والتعرض والحساسية. يجمع الإطار النظري المستخدم بين التعرض والحساسية لإحداث تأثير محتمل، والذي تمت مقارنته بعد ذلك بالقدرة على التكيف من أجل توليد مقياس شامل للضعف. تم استخدام تحليل المكونات الرئيسية (PCA) لوضع أوزان لمؤشرات مختلفة وإنتاج مؤشر ضعف الأسرة (HVI) لتصنيف الأسر وفقًا لمستوى ضعفها. من أجل فهم محددات التعرض للضغوط الناجمة عن المناخ، تم استخدام نموذج بروبيت مرتب مع متغيرات التنبؤ. تظهر النتائج أن 27 ٪ من الأسر كانت شديدة الضعف، و 44 ٪ كانت ضعيفة بشكل معتدل و 29 ٪ من الأسر كانت أقل عرضة للضغوط الناجمة عن المناخ. وكشفت تقديرات العوامل لنموذج بروبيت كذلك أن المحددات الرئيسية للضعف الرعوي هي جنس رب الأسرة، وعمر رب الأسرة، وعدد المعالين، والحالة الاجتماعية، والروابط الاجتماعية، والوصول إلى خدمات الإرشاد ومعلومات الإنذار المبكر، ومصدر الدخل التكميلي، وحجم القطيع وتنوعه، وهيكل القطيع، وحركة القطيع، والمسافة إلى الأسواق، وحالة العمالة، واستراتيجيات المواجهة، والوصول إلى الائتمان. لذلك، من المرجح أن تعزز السياسات التي تعالج محددات الضعف هذه مع التركيز على تمكين المرأة والتعليم وتنويع الدخل قدرة الأسر الرعوية على الصمود.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-014-0010-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 113 citations 113 popularity Top 1% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-014-0010-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu
description Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2016 KenyaPublisher:Academic Journals Authors: Richard Kyuma; R.G. Wahome; Josiah M. Kinama; Oliver Vivian Wasonga;handle: 11295/100510
Une étude a été menée pour déterminer l'association de la variabilité climatique, de la propagation de Prosopis juliflora et d'autres tendances de la végétation avec la dynamique des populations de bétail dans le comté de Kajiado, au Kenya. Les précipitations mensuelles, les températures mensuelles moyennes, les populations de bovins, de moutons et de chèvres de janvier 2000 à décembre 2014 ont été analysées pour déterminer les tendances des séries chronologiques. Les données de l'indice de végétation à différence normalisée (NDVI) dérivées du spectroradiomètre d'imagerie à résolution modérée (MODIS) Des images satellites de 250 m pour 2000 à 2014 ont été utilisées pour déterminer la dynamique temporelle de l'invasion de P. juliflora dans la zone d'étude. Les tendances de la température et des précipitations ont montré une variabilité marquée au cours de la période étudiée. Les températures mensuelles moyennes pendant la longue saison sèche ont augmenté de façon erratique de 33 °C en 2000 à 37 °C en 2014. De plus, les précipitations pendant la saison la plus humide ont été de 600 mm en 2000 et de 250 mm en 2014. Au cours de la période d'étude, l'écart par rapport aux précipitations moyennes à long terme (450 mm) a diminué de 585 à 403 mm. Dans le même temps, la population bovine a diminué, les populations de moutons et de chèvres sont restées statiques. L'invasion de P. juliflora a montré une corrélation positive (r=0,2 ;P<0,05) avec la moyenne la température mensuelle et négativement (r=-0,4 ;P<0,05) avec les précipitations et d'autres couvertures végétales dans les parties plus sèches, mais pas dans les parties plus élevées en altitude et plus humides de la zone d'étude. Il y avait également une corrélation négative avec les populations de bovins (r=-0,4 ;P<0,05). Dans les années 1980, les broussailles et les bois constituaient 95 et 5 % de la couverture terrestre, tandis qu'en 2008, la végétation herbacée, les arbustes et les arbres ouverts ainsi que les zones dénudées constituaient 50, 30 et 22 %, respectivement ; dont 70 % avaient été repris par Prosopis en 2014. Cette étude a démontré que même si les tendances ont montré que la population de bovins diminuait à mesure que la variabilité climatique et l'invasion de Prosopis augmentaient, il n'y avait pas de corrélation significative entre les attributs, au cours de la période à l'étude. Se realizó un estudio para determinar la asociación de la variabilidad climática, la propagación de Prosopis juliflora y otras tendencias de la vegetación con la dinámica de la población ganadera en el condado de Kajiado, Kenia. Se analizaron las precipitaciones mensuales, las temperaturas medias mensuales, las poblaciones de ganado vacuno, ovino y caprino de enero de 2000 a diciembre de 2014 para determinar las tendencias de las series temporales. Datos del Índice de Vegetación de Diferencia Normalizada (NDVI) derivados del espectrorradiómetro de imágenes de resolución moderada (MODIS) Se utilizaron imágenes satelitales de 250 m para 2000 a 2014 para determinar la dinámica temporal de la invasión de P. juliflora en el área de estudio. Las tendencias de temperatura y lluvia mostraron una marcada variabilidad durante el período en estudio. Las temperaturas medias mensuales durante la larga estación seca aumentaron de manera errática de 33 ° C en 2000 a 37 ° C en 2014. Además, la precipitación durante la temporada más húmeda fue de 600 mm en 2000 y 250 mm en 2014. Durante el período de estudio, la divergencia de la precipitación media a largo plazo (450 mm) disminuyó de 585 a 403 mm. Al mismo tiempo, la población de ganado disminuyó, las poblaciones de ovejas y cabras permanecieron estáticas. La invasión de juliflora se correlacionó positivamente (r=0,2;P<0,05) con la media temperatura mensual y negativamente (r=-0.4;P<0.05) con lluvias y otra cubierta vegetal en partes más secas, pero no en las partes de mayor altitud y más húmedas del área de estudio. También se correlacionó negativamente con las poblaciones de ganado (r=-0.4;P<0.05). En la década de 1980, los arbustos y bosques constituían el 95 y el 5% de la cubierta terrestre, mientras que en 2008, la vegetación herbácea, los matorrales y los árboles abiertos junto con las áreas desnudas constituían el 50, 30 y 22%, respectivamente; de los cuales el 70% había sido tomado por Prosopis en 2014. Este estudio demostró que, aunque las tendencias mostraron que la población de ganado disminuyó a medida que aumentaba la variabilidad climática y la invasión de Prosopis, no hubo una correlación significativa entre los atributos, durante el período bajo estudio. A study was conducted to determine the association of climate variability, Prosopis juliflora spread, and other vegetation trends with livestock population dynamics in Kajiado County, Kenya.Monthly rainfall, mean monthly temperatures, cattle, sheep and goats populations from January 2000 to December 2014, were analyzed to determine time series trends.Normalized Difference Vegetation Index (NDVI) data derived from moderate resolution imaging spectroradiometer (MODIS) 250 m satellite imageries for 2000 to 2014 were used to determine the temporal dynamics of P. juliflora invasion in the study area.Both temperature and rainfall trends showed marked variability over the period under study.The mean monthly temperatures during the long dry season increased erratically from 33°C in 2000 to 37°C in 2014.Moreover, the rainfall during the wettest season was 600 mm in 2000 and 250 mm in 2014.During the study period, divergence from the long term mean rainfall (450 mm) decreased from 585 to 403 mm.At the same time cattle population decreased, sheep and goats populations remained static.P. juliflora invasion correlated positively (r=0.2;P<0.05) with mean monthly temperature and negatively (r=-0.4;P<0.05) with rainfall and other vegetation cover in drier parts, but not in the higher altitude and wetter parts of the study area.It also correlated negatively with cattle populations (r=-0.4;P<0.05).In the 1980's, bushlands and woodlands constituted 95 and 5% of the land cover, while in 2008, herbaceous vegetation, shrublands, and open trees together with bare areas constituted 50, 30, and 22%, respectively; out of which 70% had been taken over by Prosopis in 2014.This study demonstrated that even though the trends showed that cattle population decreased as climate variability and Prosopis invasion increased, there was no significant correlation among the attributes, over the period under study. أُجريت دراسة لتحديد الارتباط بين تقلب المناخ وانتشار بروسوبيس جوليفلورا واتجاهات الغطاء النباتي الأخرى وديناميكيات عدد الماشية في مقاطعة كاجيادو، كينيا. تم تحليل هطول الأمطار الشهري، ومتوسط درجات الحرارة الشهرية، وعدد الماشية والأغنام والماعز من يناير 2000 إلى ديسمبر 2014، لتحديد اتجاهات السلاسل الزمنية. تم تحليل بيانات مؤشر الفرق الطبيعي للغطاء النباتي (NDVI) المستمدة من مقياس طيف التصوير المعتدل الدقة (MODIS) تم استخدام صور الأقمار الصناعية 250 مترًا للفترة من 2000 إلى 2014 لتحديد الديناميكيات الزمنية لغزو P. juliflora في منطقة الدراسة. أظهرت كل من درجات الحرارة واتجاهات هطول الأمطار تقلبًا ملحوظًا خلال الفترة قيد الدراسة. زاد متوسط درجات الحرارة الشهرية خلال موسم الجفاف الطويل بشكل غير منتظم من 33 درجة مئوية في عام 2000 إلى 37 درجة مئوية في عام 2014. علاوة على ذلك، كان هطول الأمطار خلال موسم الأمطار 600 مم في عام 2000 و 250 مم في عام 2014. خلال فترة الدراسة، انخفض الاختلاف عن متوسط هطول الأمطار على المدى الطويل (450 مم) من 585 إلى 403 مم. في نفس الوقت انخفض عدد الماشية، وظلت أعداد الأغنام والماعز ثابتة. ارتبط غزو juliflora بشكل إيجابي (r=0.2 ؛P<0.05) مع المتوسط درجة الحرارة الشهرية وسلبية (r=-0.4 ؛P<0.05) مع هطول الأمطار والغطاء النباتي الآخر في الأجزاء الأكثر جفافًا، ولكن ليس في الأجزاء المرتفعة والرطبة من منطقة الدراسة. كما ارتبطت سلبًا مع أعداد الماشية (r=-0.4 ؛P<0.05). في الثمانينيات، شكلت أراضي الأدغال والغابات 95 و 5 ٪ من الغطاء الأرضي، بينما في عام 2008، شكلت النباتات العشبية وأراضي الشجيرات والأشجار المفتوحة جنبًا إلى جنب مع المناطق العارية 50 و 30 و 22 ٪ على التوالي ؛ منها 70 ٪ استولت عليها Prosopis في عام 2014. أظهرت هذه الدراسة أنه على الرغم من أن الاتجاهات أظهرت أن أعداد الماشية انخفضت مع زيادة تقلب المناخ وغزو Prosopis، لم يكن هناك ارتباط كبير بين السمات، خلال الفترة قيد الدراسة.
African Journal of E... arrow_drop_down African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: African Journals Online (AJOL)African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: CrossrefAfrican Journal of Environmental Science and TechnologyArticleLicense: CC BYData sources: UnpayWallAfrican Journal of Environmental Science and TechnologyJournalData sources: Microsoft Academic Graphadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5897/ajest2015.2034&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 8 citations 8 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert African Journal of E... arrow_drop_down African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: African Journals Online (AJOL)African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: CrossrefAfrican Journal of Environmental Science and TechnologyArticleLicense: CC BYData sources: UnpayWallAfrican Journal of Environmental Science and TechnologyJournalData sources: Microsoft Academic Graphadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5897/ajest2015.2034&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2016 KenyaPublisher:Academic Journals Authors: Richard Kyuma; R.G. Wahome; Josiah M. Kinama; Oliver Vivian Wasonga;handle: 11295/100510
Une étude a été menée pour déterminer l'association de la variabilité climatique, de la propagation de Prosopis juliflora et d'autres tendances de la végétation avec la dynamique des populations de bétail dans le comté de Kajiado, au Kenya. Les précipitations mensuelles, les températures mensuelles moyennes, les populations de bovins, de moutons et de chèvres de janvier 2000 à décembre 2014 ont été analysées pour déterminer les tendances des séries chronologiques. Les données de l'indice de végétation à différence normalisée (NDVI) dérivées du spectroradiomètre d'imagerie à résolution modérée (MODIS) Des images satellites de 250 m pour 2000 à 2014 ont été utilisées pour déterminer la dynamique temporelle de l'invasion de P. juliflora dans la zone d'étude. Les tendances de la température et des précipitations ont montré une variabilité marquée au cours de la période étudiée. Les températures mensuelles moyennes pendant la longue saison sèche ont augmenté de façon erratique de 33 °C en 2000 à 37 °C en 2014. De plus, les précipitations pendant la saison la plus humide ont été de 600 mm en 2000 et de 250 mm en 2014. Au cours de la période d'étude, l'écart par rapport aux précipitations moyennes à long terme (450 mm) a diminué de 585 à 403 mm. Dans le même temps, la population bovine a diminué, les populations de moutons et de chèvres sont restées statiques. L'invasion de P. juliflora a montré une corrélation positive (r=0,2 ;P<0,05) avec la moyenne la température mensuelle et négativement (r=-0,4 ;P<0,05) avec les précipitations et d'autres couvertures végétales dans les parties plus sèches, mais pas dans les parties plus élevées en altitude et plus humides de la zone d'étude. Il y avait également une corrélation négative avec les populations de bovins (r=-0,4 ;P<0,05). Dans les années 1980, les broussailles et les bois constituaient 95 et 5 % de la couverture terrestre, tandis qu'en 2008, la végétation herbacée, les arbustes et les arbres ouverts ainsi que les zones dénudées constituaient 50, 30 et 22 %, respectivement ; dont 70 % avaient été repris par Prosopis en 2014. Cette étude a démontré que même si les tendances ont montré que la population de bovins diminuait à mesure que la variabilité climatique et l'invasion de Prosopis augmentaient, il n'y avait pas de corrélation significative entre les attributs, au cours de la période à l'étude. Se realizó un estudio para determinar la asociación de la variabilidad climática, la propagación de Prosopis juliflora y otras tendencias de la vegetación con la dinámica de la población ganadera en el condado de Kajiado, Kenia. Se analizaron las precipitaciones mensuales, las temperaturas medias mensuales, las poblaciones de ganado vacuno, ovino y caprino de enero de 2000 a diciembre de 2014 para determinar las tendencias de las series temporales. Datos del Índice de Vegetación de Diferencia Normalizada (NDVI) derivados del espectrorradiómetro de imágenes de resolución moderada (MODIS) Se utilizaron imágenes satelitales de 250 m para 2000 a 2014 para determinar la dinámica temporal de la invasión de P. juliflora en el área de estudio. Las tendencias de temperatura y lluvia mostraron una marcada variabilidad durante el período en estudio. Las temperaturas medias mensuales durante la larga estación seca aumentaron de manera errática de 33 ° C en 2000 a 37 ° C en 2014. Además, la precipitación durante la temporada más húmeda fue de 600 mm en 2000 y 250 mm en 2014. Durante el período de estudio, la divergencia de la precipitación media a largo plazo (450 mm) disminuyó de 585 a 403 mm. Al mismo tiempo, la población de ganado disminuyó, las poblaciones de ovejas y cabras permanecieron estáticas. La invasión de juliflora se correlacionó positivamente (r=0,2;P<0,05) con la media temperatura mensual y negativamente (r=-0.4;P<0.05) con lluvias y otra cubierta vegetal en partes más secas, pero no en las partes de mayor altitud y más húmedas del área de estudio. También se correlacionó negativamente con las poblaciones de ganado (r=-0.4;P<0.05). En la década de 1980, los arbustos y bosques constituían el 95 y el 5% de la cubierta terrestre, mientras que en 2008, la vegetación herbácea, los matorrales y los árboles abiertos junto con las áreas desnudas constituían el 50, 30 y 22%, respectivamente; de los cuales el 70% había sido tomado por Prosopis en 2014. Este estudio demostró que, aunque las tendencias mostraron que la población de ganado disminuyó a medida que aumentaba la variabilidad climática y la invasión de Prosopis, no hubo una correlación significativa entre los atributos, durante el período bajo estudio. A study was conducted to determine the association of climate variability, Prosopis juliflora spread, and other vegetation trends with livestock population dynamics in Kajiado County, Kenya.Monthly rainfall, mean monthly temperatures, cattle, sheep and goats populations from January 2000 to December 2014, were analyzed to determine time series trends.Normalized Difference Vegetation Index (NDVI) data derived from moderate resolution imaging spectroradiometer (MODIS) 250 m satellite imageries for 2000 to 2014 were used to determine the temporal dynamics of P. juliflora invasion in the study area.Both temperature and rainfall trends showed marked variability over the period under study.The mean monthly temperatures during the long dry season increased erratically from 33°C in 2000 to 37°C in 2014.Moreover, the rainfall during the wettest season was 600 mm in 2000 and 250 mm in 2014.During the study period, divergence from the long term mean rainfall (450 mm) decreased from 585 to 403 mm.At the same time cattle population decreased, sheep and goats populations remained static.P. juliflora invasion correlated positively (r=0.2;P<0.05) with mean monthly temperature and negatively (r=-0.4;P<0.05) with rainfall and other vegetation cover in drier parts, but not in the higher altitude and wetter parts of the study area.It also correlated negatively with cattle populations (r=-0.4;P<0.05).In the 1980's, bushlands and woodlands constituted 95 and 5% of the land cover, while in 2008, herbaceous vegetation, shrublands, and open trees together with bare areas constituted 50, 30, and 22%, respectively; out of which 70% had been taken over by Prosopis in 2014.This study demonstrated that even though the trends showed that cattle population decreased as climate variability and Prosopis invasion increased, there was no significant correlation among the attributes, over the period under study. أُجريت دراسة لتحديد الارتباط بين تقلب المناخ وانتشار بروسوبيس جوليفلورا واتجاهات الغطاء النباتي الأخرى وديناميكيات عدد الماشية في مقاطعة كاجيادو، كينيا. تم تحليل هطول الأمطار الشهري، ومتوسط درجات الحرارة الشهرية، وعدد الماشية والأغنام والماعز من يناير 2000 إلى ديسمبر 2014، لتحديد اتجاهات السلاسل الزمنية. تم تحليل بيانات مؤشر الفرق الطبيعي للغطاء النباتي (NDVI) المستمدة من مقياس طيف التصوير المعتدل الدقة (MODIS) تم استخدام صور الأقمار الصناعية 250 مترًا للفترة من 2000 إلى 2014 لتحديد الديناميكيات الزمنية لغزو P. juliflora في منطقة الدراسة. أظهرت كل من درجات الحرارة واتجاهات هطول الأمطار تقلبًا ملحوظًا خلال الفترة قيد الدراسة. زاد متوسط درجات الحرارة الشهرية خلال موسم الجفاف الطويل بشكل غير منتظم من 33 درجة مئوية في عام 2000 إلى 37 درجة مئوية في عام 2014. علاوة على ذلك، كان هطول الأمطار خلال موسم الأمطار 600 مم في عام 2000 و 250 مم في عام 2014. خلال فترة الدراسة، انخفض الاختلاف عن متوسط هطول الأمطار على المدى الطويل (450 مم) من 585 إلى 403 مم. في نفس الوقت انخفض عدد الماشية، وظلت أعداد الأغنام والماعز ثابتة. ارتبط غزو juliflora بشكل إيجابي (r=0.2 ؛P<0.05) مع المتوسط درجة الحرارة الشهرية وسلبية (r=-0.4 ؛P<0.05) مع هطول الأمطار والغطاء النباتي الآخر في الأجزاء الأكثر جفافًا، ولكن ليس في الأجزاء المرتفعة والرطبة من منطقة الدراسة. كما ارتبطت سلبًا مع أعداد الماشية (r=-0.4 ؛P<0.05). في الثمانينيات، شكلت أراضي الأدغال والغابات 95 و 5 ٪ من الغطاء الأرضي، بينما في عام 2008، شكلت النباتات العشبية وأراضي الشجيرات والأشجار المفتوحة جنبًا إلى جنب مع المناطق العارية 50 و 30 و 22 ٪ على التوالي ؛ منها 70 ٪ استولت عليها Prosopis في عام 2014. أظهرت هذه الدراسة أنه على الرغم من أن الاتجاهات أظهرت أن أعداد الماشية انخفضت مع زيادة تقلب المناخ وغزو Prosopis، لم يكن هناك ارتباط كبير بين السمات، خلال الفترة قيد الدراسة.
African Journal of E... arrow_drop_down African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: African Journals Online (AJOL)African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: CrossrefAfrican Journal of Environmental Science and TechnologyArticleLicense: CC BYData sources: UnpayWallAfrican Journal of Environmental Science and TechnologyJournalData sources: Microsoft Academic Graphadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5897/ajest2015.2034&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 8 citations 8 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert African Journal of E... arrow_drop_down African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: African Journals Online (AJOL)African Journal of Environmental Science and TechnologyArticle . 2016 . Peer-reviewedData sources: CrossrefAfrican Journal of Environmental Science and TechnologyArticleLicense: CC BYData sources: UnpayWallAfrican Journal of Environmental Science and TechnologyJournalData sources: Microsoft Academic Graphadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5897/ajest2015.2034&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2014 France, France, KenyaPublisher:Informa UK Limited Egeru, Anthony; Osaliya, Richard; MacOpiyo, Laban; Mburu, John; Wasonga, Oliver; Barasa, Bernard; Said, Mohammed; Aleper, Daniel; Mwanjalolo, Gilbert-Jackson M;handle: 10568/52342 , 11295/91610
Semi-arid areas show climatic variability on a spatio-temporal scale. There are few studies on the long-term trends and intensity of this variability from East Africa. We used National Ocean and Atmospheric Administration re-analysis climate data (1979–2009) in this study. Rainfall exhibited a non-significant long-term trend. The climate of the area is variable (coefficient of variation-CV >35.0%) with spatio-temporal oddities in rainfall and temperature. A rise in minimum (0.9 °C), maximum (1.6 °C) and mean (1.3 °C) temperature occurred between 1979 and 2009. There were more months with climate variability indices below the threshold ( 2.6) were experienced between 2004 and 2009 than between 1984 and 2003. We consider that the use of spatio-temporal climatic informati...
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1080/00207233.2014.919729&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen 26 citations 26 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1080/00207233.2014.919729&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2014 France, France, KenyaPublisher:Informa UK Limited Egeru, Anthony; Osaliya, Richard; MacOpiyo, Laban; Mburu, John; Wasonga, Oliver; Barasa, Bernard; Said, Mohammed; Aleper, Daniel; Mwanjalolo, Gilbert-Jackson M;handle: 10568/52342 , 11295/91610
Semi-arid areas show climatic variability on a spatio-temporal scale. There are few studies on the long-term trends and intensity of this variability from East Africa. We used National Ocean and Atmospheric Administration re-analysis climate data (1979–2009) in this study. Rainfall exhibited a non-significant long-term trend. The climate of the area is variable (coefficient of variation-CV >35.0%) with spatio-temporal oddities in rainfall and temperature. A rise in minimum (0.9 °C), maximum (1.6 °C) and mean (1.3 °C) temperature occurred between 1979 and 2009. There were more months with climate variability indices below the threshold ( 2.6) were experienced between 2004 and 2009 than between 1984 and 2003. We consider that the use of spatio-temporal climatic informati...
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1080/00207233.2014.919729&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen 26 citations 26 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1080/00207233.2014.919729&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2022Publisher:Frontiers Media SA Authors: Walter Magero Wafula; Oliver Vivian Wasonga; Oscar Kipchirchir Koech; Staline Kibet;AbstractPastoralism is globally recognized as the backbone of the economy in the vast arid and semi-arid rangelands. Despite its enormous economic contribution, the system is facing a myriad of challenges, among them, land use and land tenure changes, resulting in diminished grazing land. Accompanying such changes is the conversion of traditional grazing lands into other uses such as settlements, with urbanization being one of the key drivers of pastoral system dynamics. Understanding such dynamics in the face of compounding factors such as frequent droughts linked to climate change is key in guiding policy formulation and interventions aimed at achieving a sustainable pastoral production system. This study investigated factors determining migration and settlement of pastoralists in Nairobi City of Kenya. Data was collected through a snowball sampling approach using semi-structured household questionnaires, focus group discussions (FGDs) and key informant interviews (KIIs) in five Sub-counties of Nairobi City County. A total of 144 household interviews, 6 FGDs and 16 KIIs were conducted to elucidate drivers of urban pastoralism, opportunities and challenges encountered by pastoralists in the city. A binary logistic regression model was used to analyse the determinants of their migration. Results show that search for pasture and water resources, and alternative markets especially during droughts, are the main reasons for pastoralists’ migration to the city. In addition, educated herders were found to be more likely to migrate to the city as they pursue wage employment. Whereas these findings revealed that migration to the city exposes pastoralists to diverse livelihood opportunities, they are equally faced by a number of challenges - mainly road accidents involving livestock, frequent land displacements to pave way for development of real estates, and livestock poisoning from sewage and garbage wastes. There is a need for policy and regulatory interventions to recognize pastoralism alongside other forms of urban farming and addressing challenges facing sustainable pastoral production.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00204-6&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 14 citations 14 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00204-6&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2022Publisher:Frontiers Media SA Authors: Walter Magero Wafula; Oliver Vivian Wasonga; Oscar Kipchirchir Koech; Staline Kibet;AbstractPastoralism is globally recognized as the backbone of the economy in the vast arid and semi-arid rangelands. Despite its enormous economic contribution, the system is facing a myriad of challenges, among them, land use and land tenure changes, resulting in diminished grazing land. Accompanying such changes is the conversion of traditional grazing lands into other uses such as settlements, with urbanization being one of the key drivers of pastoral system dynamics. Understanding such dynamics in the face of compounding factors such as frequent droughts linked to climate change is key in guiding policy formulation and interventions aimed at achieving a sustainable pastoral production system. This study investigated factors determining migration and settlement of pastoralists in Nairobi City of Kenya. Data was collected through a snowball sampling approach using semi-structured household questionnaires, focus group discussions (FGDs) and key informant interviews (KIIs) in five Sub-counties of Nairobi City County. A total of 144 household interviews, 6 FGDs and 16 KIIs were conducted to elucidate drivers of urban pastoralism, opportunities and challenges encountered by pastoralists in the city. A binary logistic regression model was used to analyse the determinants of their migration. Results show that search for pasture and water resources, and alternative markets especially during droughts, are the main reasons for pastoralists’ migration to the city. In addition, educated herders were found to be more likely to migrate to the city as they pursue wage employment. Whereas these findings revealed that migration to the city exposes pastoralists to diverse livelihood opportunities, they are equally faced by a number of challenges - mainly road accidents involving livestock, frequent land displacements to pave way for development of real estates, and livestock poisoning from sewage and garbage wastes. There is a need for policy and regulatory interventions to recognize pastoralism alongside other forms of urban farming and addressing challenges facing sustainable pastoral production.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00204-6&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 14 citations 14 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00204-6&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2023 SwitzerlandPublisher:Wiley Peggy Ngila; David Chiawo; Margaret Awuor Owuor; Oliver Vivian Wasonga; Jane Wangui Mugo;pmid: 37664500
pmc: PMC10468911
AbstractRaptors face global threats like electrocution, collisions, and habitat fragmentation. Many species remain understudied, and their distribution patterns are unknown. Understanding their current and future distribution is crucial for conservation. Protecting these top predators requires knowledge of their spatial distribution and environmental influences. This study addresses knowledge gaps in raptor habitats and distributions in Kenya, considering current and future climate changes. Using species distribution models and occurrence data from the Global Biodiversity Information Facility, we evaluated suitable habitats for four endangered Kenyan raptor species: Martial eagle, Secretarybird, Bateleur, and Steppe Eagle. We assessed the impact of climatic predictors on their distribution, considering two climate change scenarios for 2020–2040. Our findings reveal that raptor distribution in Kenya is predominantly concentrated in the southwestern region, extending into the central region of the country. The most significant predictors of raptor species distribution varied for each species, with Steppe eagle and Secretarybird being highly influenced by precipitation during the warmest quarter, Martial eagle being influenced by mean temperature during the driest quarter, and Bateleur being primarily influenced by precipitation during the coldest quarter. When projecting our model into the climate change scenarios for 2020–2040, all species except the Bateleur exhibited a negative range shift. The results of our study suggest that climate change may have adverse impacts on the raptor species examined. In light of these findings, we recommend implementing targeted monitoring and conducting surveys in accordance with our current model predictions. Specifically, our focus should be on monitoring areas that exhibit the highest climate suitability, as these areas are likely to undergo significant shifts in the near future. By conducting regular monitoring and engaging in further research, we can enhance our understanding of these raptor species and gather valuable data to improve the accuracy and reliability of our model predictions.
Bern Open Repository... arrow_drop_down Bern Open Repository and Information System (BORIS)Article . 2023 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/ece3.10443&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 10 citations 10 popularity Average influence Average impulse Top 10% Powered by BIP!more_vert Bern Open Repository... arrow_drop_down Bern Open Repository and Information System (BORIS)Article . 2023 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/ece3.10443&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2023 SwitzerlandPublisher:Wiley Peggy Ngila; David Chiawo; Margaret Awuor Owuor; Oliver Vivian Wasonga; Jane Wangui Mugo;pmid: 37664500
pmc: PMC10468911
AbstractRaptors face global threats like electrocution, collisions, and habitat fragmentation. Many species remain understudied, and their distribution patterns are unknown. Understanding their current and future distribution is crucial for conservation. Protecting these top predators requires knowledge of their spatial distribution and environmental influences. This study addresses knowledge gaps in raptor habitats and distributions in Kenya, considering current and future climate changes. Using species distribution models and occurrence data from the Global Biodiversity Information Facility, we evaluated suitable habitats for four endangered Kenyan raptor species: Martial eagle, Secretarybird, Bateleur, and Steppe Eagle. We assessed the impact of climatic predictors on their distribution, considering two climate change scenarios for 2020–2040. Our findings reveal that raptor distribution in Kenya is predominantly concentrated in the southwestern region, extending into the central region of the country. The most significant predictors of raptor species distribution varied for each species, with Steppe eagle and Secretarybird being highly influenced by precipitation during the warmest quarter, Martial eagle being influenced by mean temperature during the driest quarter, and Bateleur being primarily influenced by precipitation during the coldest quarter. When projecting our model into the climate change scenarios for 2020–2040, all species except the Bateleur exhibited a negative range shift. The results of our study suggest that climate change may have adverse impacts on the raptor species examined. In light of these findings, we recommend implementing targeted monitoring and conducting surveys in accordance with our current model predictions. Specifically, our focus should be on monitoring areas that exhibit the highest climate suitability, as these areas are likely to undergo significant shifts in the near future. By conducting regular monitoring and engaging in further research, we can enhance our understanding of these raptor species and gather valuable data to improve the accuracy and reliability of our model predictions.
Bern Open Repository... arrow_drop_down Bern Open Repository and Information System (BORIS)Article . 2023 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/ece3.10443&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 10 citations 10 popularity Average influence Average impulse Top 10% Powered by BIP!more_vert Bern Open Repository... arrow_drop_down Bern Open Repository and Information System (BORIS)Article . 2023 . Peer-reviewedData sources: Bern Open Repository and Information System (BORIS)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/ece3.10443&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2023Publisher:Universidad Autonoma de Yucatan. Facultad de Medicina Veterinaria y Zootecnia Authors: Armara Macimiliam Galwab; Oscar Kipchirchir Koech; Oliver Vivian Wasonga; Godfrey Kironchi;<p><strong>Background.</strong> Climate change is a global phenomenon, with varying indicators and impacts from one region to another. The impacts of the changing climate are high in developing countries that are mainly dependent on climate-driven economic sectors such as pastoral and agro-pastoral livelihoods. <strong>Objective.</strong> Analyze the temporal trend, the variability in temperature and precipitation, and the relationship between both parameters to determine the influence of the El Niño phenomenon in Marsabit County, Kenya, from 1981 to 2021. <strong>Methodology.</strong> Daily rainfall and temperature data for the four study locations (Maikona, Kargi, Dakabaricha, and Sololo) were obtained. The analysis of extremes was the main method used in the analysis of the temporal and spatial variability of rainfall and temperature to establish the frequency and magnitude of climate variability in the study area. The seasonal mean plus or minus 1 Standard deviation for the entire period of study was used in the analysis of extremes. <strong>Results.</strong> Findings from trend analysis showed that rainfall trends have significantly increased in Marsabit County. Further, results on seasonal trends and variability of rainfall showed that March-April-May rainfall has been decreasing over the years. Below average rainfall has been experienced in Maikona in 2000 and 2011 with a magnitude of -42.9 mm, and -39.3 mm, respectively, while below average rainfall has been experienced in Kargi in 2000, 2009, 2011, and 2012 with a magnitude of -41.7 mm, -24.2 mm, -35.3 mm, and -34.3 mm, respectively. Analysis of the temperature trends and variability showed that both night and day temperatures have significantly increased over the years in Marsabit County. The magnitude of warming was found to be double that of cooling. The regression analysis further showed that there exists a negative correlation between temperatures and rainfall, implying that generally, rainfall decreases with increasing temperatures. <strong>Implications.</strong> This finding is important because it could help policymakers and people working on development in Marsabit County see what temperature and precipitation changes are happening locally. This could help them plan for climate change better. Both pastoral and agro-pastoral areas have been affected by both El Niño and La Niña activities, with the El Niño years recording the highest amounts of rainfall while the La Niña years recording the lowest amounts. <strong>Conclusion</strong><strong>s</strong><strong>.</strong> This study recommends the use of rainwater harvesting during the October to December Season to take advantage of the increasing Trends and flood episodes associated with high magnitudes and frequencies of above average rainfall and use the same to cope with reduced rainfall in the March to May season. </p>
Tropical and Subtrop... arrow_drop_down Tropical and Subtropical AgroecosystemsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.56369/tsaes.4810&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Tropical and Subtrop... arrow_drop_down Tropical and Subtropical AgroecosystemsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.56369/tsaes.4810&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2023Publisher:Universidad Autonoma de Yucatan. Facultad de Medicina Veterinaria y Zootecnia Authors: Armara Macimiliam Galwab; Oscar Kipchirchir Koech; Oliver Vivian Wasonga; Godfrey Kironchi;<p><strong>Background.</strong> Climate change is a global phenomenon, with varying indicators and impacts from one region to another. The impacts of the changing climate are high in developing countries that are mainly dependent on climate-driven economic sectors such as pastoral and agro-pastoral livelihoods. <strong>Objective.</strong> Analyze the temporal trend, the variability in temperature and precipitation, and the relationship between both parameters to determine the influence of the El Niño phenomenon in Marsabit County, Kenya, from 1981 to 2021. <strong>Methodology.</strong> Daily rainfall and temperature data for the four study locations (Maikona, Kargi, Dakabaricha, and Sololo) were obtained. The analysis of extremes was the main method used in the analysis of the temporal and spatial variability of rainfall and temperature to establish the frequency and magnitude of climate variability in the study area. The seasonal mean plus or minus 1 Standard deviation for the entire period of study was used in the analysis of extremes. <strong>Results.</strong> Findings from trend analysis showed that rainfall trends have significantly increased in Marsabit County. Further, results on seasonal trends and variability of rainfall showed that March-April-May rainfall has been decreasing over the years. Below average rainfall has been experienced in Maikona in 2000 and 2011 with a magnitude of -42.9 mm, and -39.3 mm, respectively, while below average rainfall has been experienced in Kargi in 2000, 2009, 2011, and 2012 with a magnitude of -41.7 mm, -24.2 mm, -35.3 mm, and -34.3 mm, respectively. Analysis of the temperature trends and variability showed that both night and day temperatures have significantly increased over the years in Marsabit County. The magnitude of warming was found to be double that of cooling. The regression analysis further showed that there exists a negative correlation between temperatures and rainfall, implying that generally, rainfall decreases with increasing temperatures. <strong>Implications.</strong> This finding is important because it could help policymakers and people working on development in Marsabit County see what temperature and precipitation changes are happening locally. This could help them plan for climate change better. Both pastoral and agro-pastoral areas have been affected by both El Niño and La Niña activities, with the El Niño years recording the highest amounts of rainfall while the La Niña years recording the lowest amounts. <strong>Conclusion</strong><strong>s</strong><strong>.</strong> This study recommends the use of rainwater harvesting during the October to December Season to take advantage of the increasing Trends and flood episodes associated with high magnitudes and frequencies of above average rainfall and use the same to cope with reduced rainfall in the March to May season. </p>
Tropical and Subtrop... arrow_drop_down Tropical and Subtropical AgroecosystemsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.56369/tsaes.4810&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Tropical and Subtrop... arrow_drop_down Tropical and Subtropical AgroecosystemsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.56369/tsaes.4810&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2021Publisher:Frontiers Media SA Authors: Michael Elias Mgalula; Oliver Vivian Wasonga; Christian Hülsebusch; Uwe Richter; +1 AuthorsMichael Elias Mgalula; Oliver Vivian Wasonga; Christian Hülsebusch; Uwe Richter; Oliver Hensel;AbstractMany activities from livestock husbandry contribute to emission and concentration of carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4) gases to the atmosphere; activities such as grazing, manure and urine deposited or stored on land as well as crop farming practices such as tilling, burning of biomass or crop residues. A better understanding of the extent of emission sources and carbon sequestration potential for Eastern Africa rangelands is vital for developing mitigation strategies. In this article, we review the sources of emission with a focus on land conversion for crop farming, livestock husbandry, wildfire/burning and biotic processes such as soil biota activity in the ecosystem. The trade-offs of using rangeland with an emphasis on enhancing carbon sequestration potential are also addressed. This review revealed that many practices that enhance carbon capture process show promising benefits with sink capacity of −0.004 to 13 Mg C ha−1 year−1. However, given multiple land-use and environmental dynamics in Eastern African rangelands, it is imperative to generate more data across various land management and climatic zones in order to ascertain varied sink capacity. Improving carbon sequestration in rangelands through appropriate land management is a promising cost-effective strategy to mitigate climate change. Through improved farming or grazing management practice and restoring of degraded areas, there are significant benefits to enhance carbon sequestration. As rangeland resources are multi-faceted, engaging trans-disciplinary approaches is necessary to allow analyses of co-benefits of improved management or trade-offs degrading.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00201-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 11 citations 11 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00201-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2021Publisher:Frontiers Media SA Authors: Michael Elias Mgalula; Oliver Vivian Wasonga; Christian Hülsebusch; Uwe Richter; +1 AuthorsMichael Elias Mgalula; Oliver Vivian Wasonga; Christian Hülsebusch; Uwe Richter; Oliver Hensel;AbstractMany activities from livestock husbandry contribute to emission and concentration of carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4) gases to the atmosphere; activities such as grazing, manure and urine deposited or stored on land as well as crop farming practices such as tilling, burning of biomass or crop residues. A better understanding of the extent of emission sources and carbon sequestration potential for Eastern Africa rangelands is vital for developing mitigation strategies. In this article, we review the sources of emission with a focus on land conversion for crop farming, livestock husbandry, wildfire/burning and biotic processes such as soil biota activity in the ecosystem. The trade-offs of using rangeland with an emphasis on enhancing carbon sequestration potential are also addressed. This review revealed that many practices that enhance carbon capture process show promising benefits with sink capacity of −0.004 to 13 Mg C ha−1 year−1. However, given multiple land-use and environmental dynamics in Eastern African rangelands, it is imperative to generate more data across various land management and climatic zones in order to ascertain varied sink capacity. Improving carbon sequestration in rangelands through appropriate land management is a promising cost-effective strategy to mitigate climate change. Through improved farming or grazing management practice and restoring of degraded areas, there are significant benefits to enhance carbon sequestration. As rangeland resources are multi-faceted, engaging trans-disciplinary approaches is necessary to allow analyses of co-benefits of improved management or trade-offs degrading.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00201-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 11 citations 11 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-021-00201-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2015 KenyaPublisher:Springer Science and Business Media LLC Francis Opiyo; Francis Opiyo; Richard Munang; Janpeter Schilling; Oliver Wasonga; Moses Nyangito;handle: 11295/91622
Cette étude met en évidence les caractéristiques de la sécheresse et les nombreuses réponses aux stress liés à la sécheresse employées par les éleveurs de Turkana du nord-ouest du Kenya. De multiples sources de données, y compris des entretiens socio-économiques avec 302 ménages, des discussions de groupe et des entretiens informels avec des éleveurs, ont été utilisées pour capturer divers aspects de l'adaptation et des pratiques d'adaptation à la sécheresse et à la sécheresse. L'indice normalisé des précipitations dérivé des données sur les précipitations à long terme obtenues du Service météorologique du Kenya a été utilisé pour quantifier différents degrés d'intensité de la sécheresse entre 1950 et 2012. Les résultats ont révélé que les sécheresses extrêmes étaient de plus en plus fréquentes et ont eu un impact négatif sur les moyens de subsistance pastoraux. Afin de s'adapter ou de faire face aux anomalies climatiques, les ménages utilisent diverses stratégies. En plus des mécanismes traditionnels d'adaptation à court terme, les stratégies d'adaptation à long terme utilisées comprennent la diversification des sources de revenus ; la mobilité du bétail pour suivre les ressources en fourrage et en eau ; la diversification de la composition des troupeaux pour bénéficier de la tolérance variée à la sécheresse et aux maladies, ainsi que de la fécondité de diverses espèces animales ; et l'envoi des enfants à l'école pour une éducation formelle en tant qu'investissement à long terme qui devrait être remboursé par les revenus de l'emploi. Les politiques et les interventions de développement qui réduisent les risques, diminuent les contraintes de subsistance et élargissent les possibilités d'accroître la résilience des ménages à la sécheresse sont des compléments essentiels aux stratégies pastorales existantes. Este estudio destaca las características de la sequía y las muchas respuestas al estrés por sequía empleadas por los pastores Turkana del noroeste de Kenia. Se utilizaron múltiples fuentes de datos, incluidas entrevistas socioeconómicas con 302 hogares, discusiones de grupos focales y entrevistas informales con pastores para capturar diversos aspectos de la sequía y la adaptación a la sequía y las prácticas de afrontamiento. El índice de precipitación estandarizado derivado de los datos de precipitación a largo plazo obtenidos del Servicio Meteorológico de Kenia se utilizó para cuantificar los diferentes grados de intensidad de la sequía entre 1950 y 2012. Los resultados revelaron que los eventos de sequía extrema eran cada vez más frecuentes y han tenido un impacto negativo en los medios de vida pastorales. Para adaptarse o hacer frente a las anomalías climáticas, los hogares están utilizando una variedad de estrategias. Además de los mecanismos tradicionales de supervivencia a corto plazo, las estrategias de adaptación a largo plazo utilizadas incluyen la diversificación de las fuentes de sustento; la movilidad del ganado para rastrear el forraje y los recursos hídricos; la diversificación de la composición del rebaño para beneficiarse de la variada tolerancia a la sequía y las enfermedades, así como la fecundidad de diversas especies de ganado; y el envío de niños a la escuela para la educación formal como una inversión a largo plazo que se espera que pague a través de los ingresos del empleo. Las políticas y las intervenciones de desarrollo que reducen los riesgos, disminuyen las limitaciones de los medios de subsistencia y amplían las oportunidades para aumentar la resiliencia de los hogares a la sequía son complementos críticos de las estrategias pastorales existentes. This study highlights drought characteristics and the many responses to drought stresses employed by Turkana pastoralists of northwestern Kenya. Multiple data sources, including socioeconomic interviews with 302 households, focus group discussions, and informal interviews with pastoralists were used to capture various aspects of drought and drought adaptation and coping practices. Standardized precipitation index derived from long-term rainfall data obtained from the Kenya Meteorological Service was used to quantify different degrees of drought intensity between 1950 and 2012. Results revealed that extreme drought events were increasingly frequent, and have impacted negatively on pastoral livelihoods. In order to adapt to or cope with climatic anomalies, households are using a variety of strategies. In addition to the traditional short-term coping mechanisms, the long-term adaptation strategies used include diversification of livelihood sources; livestock mobility to track forage and water resources; diversification of herd composition to benefit from the varied drought and disease tolerance, as well as fecundity of diverse livestock species; and sending children to school for formal education as a long term investment expected to pay back through income from employment. Policies and development interventions that reduce risks, diminish livelihood constraints, and expand opportunities for increased household resilience to drought are critical complements to the existing pastoral strategies. تسلط هذه الدراسة الضوء على خصائص الجفاف والاستجابات العديدة لضغوط الجفاف التي يستخدمها رعاة توركانا في شمال غرب كينيا. تم استخدام مصادر بيانات متعددة، بما في ذلك المقابلات الاجتماعية والاقتصادية مع 302 أسرة، ومناقشات مجموعات التركيز، والمقابلات غير الرسمية مع الرعاة لالتقاط مختلف جوانب التكيف مع الجفاف والجفاف وممارسات التكيف. تم استخدام مؤشر هطول الأمطار الموحد المستمد من بيانات هطول الأمطار طويلة الأجل التي تم الحصول عليها من دائرة الأرصاد الجوية الكينية لقياس درجات مختلفة من شدة الجفاف بين عامي 1950 و 2012. كشفت النتائج أن أحداث الجفاف الشديد كانت متكررة بشكل متزايد، وأثرت سلبًا على سبل العيش الرعوية. من أجل التكيف مع الشذوذ المناخي أو التعامل معه، تستخدم الأسر مجموعة متنوعة من الاستراتيجيات. بالإضافة إلى آليات المواجهة التقليدية قصيرة الأجل، تشمل استراتيجيات التكيف طويلة الأجل المستخدمة تنويع مصادر سبل العيش ؛ وتنقل الماشية لتتبع العلف والموارد المائية ؛ وتنويع تركيبة القطيع للاستفادة من تنوع الجفاف وتحمل الأمراض، وكذلك خصوبة أنواع الماشية المتنوعة ؛ وإرسال الأطفال إلى المدرسة للتعليم الرسمي كاستثمار طويل الأجل من المتوقع أن يسدد من خلال الدخل من العمل. تعد السياسات والتدخلات الإنمائية التي تقلل من المخاطر، وتقلل من قيود سبل العيش، وتوسع الفرص لزيادة قدرة الأسرة على مواجهة الجفاف مكملة حاسمة للاستراتيجيات الرعوية الحالية.
International Journa... arrow_drop_down International Journal of Disaster Risk ScienceArticle . 2015 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s13753-015-0063-4&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 199 citations 199 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!more_vert International Journa... arrow_drop_down International Journal of Disaster Risk ScienceArticle . 2015 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s13753-015-0063-4&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2015 KenyaPublisher:Springer Science and Business Media LLC Francis Opiyo; Francis Opiyo; Richard Munang; Janpeter Schilling; Oliver Wasonga; Moses Nyangito;handle: 11295/91622
Cette étude met en évidence les caractéristiques de la sécheresse et les nombreuses réponses aux stress liés à la sécheresse employées par les éleveurs de Turkana du nord-ouest du Kenya. De multiples sources de données, y compris des entretiens socio-économiques avec 302 ménages, des discussions de groupe et des entretiens informels avec des éleveurs, ont été utilisées pour capturer divers aspects de l'adaptation et des pratiques d'adaptation à la sécheresse et à la sécheresse. L'indice normalisé des précipitations dérivé des données sur les précipitations à long terme obtenues du Service météorologique du Kenya a été utilisé pour quantifier différents degrés d'intensité de la sécheresse entre 1950 et 2012. Les résultats ont révélé que les sécheresses extrêmes étaient de plus en plus fréquentes et ont eu un impact négatif sur les moyens de subsistance pastoraux. Afin de s'adapter ou de faire face aux anomalies climatiques, les ménages utilisent diverses stratégies. En plus des mécanismes traditionnels d'adaptation à court terme, les stratégies d'adaptation à long terme utilisées comprennent la diversification des sources de revenus ; la mobilité du bétail pour suivre les ressources en fourrage et en eau ; la diversification de la composition des troupeaux pour bénéficier de la tolérance variée à la sécheresse et aux maladies, ainsi que de la fécondité de diverses espèces animales ; et l'envoi des enfants à l'école pour une éducation formelle en tant qu'investissement à long terme qui devrait être remboursé par les revenus de l'emploi. Les politiques et les interventions de développement qui réduisent les risques, diminuent les contraintes de subsistance et élargissent les possibilités d'accroître la résilience des ménages à la sécheresse sont des compléments essentiels aux stratégies pastorales existantes. Este estudio destaca las características de la sequía y las muchas respuestas al estrés por sequía empleadas por los pastores Turkana del noroeste de Kenia. Se utilizaron múltiples fuentes de datos, incluidas entrevistas socioeconómicas con 302 hogares, discusiones de grupos focales y entrevistas informales con pastores para capturar diversos aspectos de la sequía y la adaptación a la sequía y las prácticas de afrontamiento. El índice de precipitación estandarizado derivado de los datos de precipitación a largo plazo obtenidos del Servicio Meteorológico de Kenia se utilizó para cuantificar los diferentes grados de intensidad de la sequía entre 1950 y 2012. Los resultados revelaron que los eventos de sequía extrema eran cada vez más frecuentes y han tenido un impacto negativo en los medios de vida pastorales. Para adaptarse o hacer frente a las anomalías climáticas, los hogares están utilizando una variedad de estrategias. Además de los mecanismos tradicionales de supervivencia a corto plazo, las estrategias de adaptación a largo plazo utilizadas incluyen la diversificación de las fuentes de sustento; la movilidad del ganado para rastrear el forraje y los recursos hídricos; la diversificación de la composición del rebaño para beneficiarse de la variada tolerancia a la sequía y las enfermedades, así como la fecundidad de diversas especies de ganado; y el envío de niños a la escuela para la educación formal como una inversión a largo plazo que se espera que pague a través de los ingresos del empleo. Las políticas y las intervenciones de desarrollo que reducen los riesgos, disminuyen las limitaciones de los medios de subsistencia y amplían las oportunidades para aumentar la resiliencia de los hogares a la sequía son complementos críticos de las estrategias pastorales existentes. This study highlights drought characteristics and the many responses to drought stresses employed by Turkana pastoralists of northwestern Kenya. Multiple data sources, including socioeconomic interviews with 302 households, focus group discussions, and informal interviews with pastoralists were used to capture various aspects of drought and drought adaptation and coping practices. Standardized precipitation index derived from long-term rainfall data obtained from the Kenya Meteorological Service was used to quantify different degrees of drought intensity between 1950 and 2012. Results revealed that extreme drought events were increasingly frequent, and have impacted negatively on pastoral livelihoods. In order to adapt to or cope with climatic anomalies, households are using a variety of strategies. In addition to the traditional short-term coping mechanisms, the long-term adaptation strategies used include diversification of livelihood sources; livestock mobility to track forage and water resources; diversification of herd composition to benefit from the varied drought and disease tolerance, as well as fecundity of diverse livestock species; and sending children to school for formal education as a long term investment expected to pay back through income from employment. Policies and development interventions that reduce risks, diminish livelihood constraints, and expand opportunities for increased household resilience to drought are critical complements to the existing pastoral strategies. تسلط هذه الدراسة الضوء على خصائص الجفاف والاستجابات العديدة لضغوط الجفاف التي يستخدمها رعاة توركانا في شمال غرب كينيا. تم استخدام مصادر بيانات متعددة، بما في ذلك المقابلات الاجتماعية والاقتصادية مع 302 أسرة، ومناقشات مجموعات التركيز، والمقابلات غير الرسمية مع الرعاة لالتقاط مختلف جوانب التكيف مع الجفاف والجفاف وممارسات التكيف. تم استخدام مؤشر هطول الأمطار الموحد المستمد من بيانات هطول الأمطار طويلة الأجل التي تم الحصول عليها من دائرة الأرصاد الجوية الكينية لقياس درجات مختلفة من شدة الجفاف بين عامي 1950 و 2012. كشفت النتائج أن أحداث الجفاف الشديد كانت متكررة بشكل متزايد، وأثرت سلبًا على سبل العيش الرعوية. من أجل التكيف مع الشذوذ المناخي أو التعامل معه، تستخدم الأسر مجموعة متنوعة من الاستراتيجيات. بالإضافة إلى آليات المواجهة التقليدية قصيرة الأجل، تشمل استراتيجيات التكيف طويلة الأجل المستخدمة تنويع مصادر سبل العيش ؛ وتنقل الماشية لتتبع العلف والموارد المائية ؛ وتنويع تركيبة القطيع للاستفادة من تنوع الجفاف وتحمل الأمراض، وكذلك خصوبة أنواع الماشية المتنوعة ؛ وإرسال الأطفال إلى المدرسة للتعليم الرسمي كاستثمار طويل الأجل من المتوقع أن يسدد من خلال الدخل من العمل. تعد السياسات والتدخلات الإنمائية التي تقلل من المخاطر، وتقلل من قيود سبل العيش، وتوسع الفرص لزيادة قدرة الأسرة على مواجهة الجفاف مكملة حاسمة للاستراتيجيات الرعوية الحالية.
International Journa... arrow_drop_down International Journal of Disaster Risk ScienceArticle . 2015 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s13753-015-0063-4&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 199 citations 199 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!more_vert International Journa... arrow_drop_down International Journal of Disaster Risk ScienceArticle . 2015 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s13753-015-0063-4&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2014 KenyaPublisher:Frontiers Media SA Funded by:WTWTAuthors: Moses Nyangito; Oliver Wasonga; Francis Opiyo; Francis Opiyo;handle: 11295/74597
Cette étude utilise des outils statistiques et économétriques pour mesurer la vulnérabilité des ménages dans les pâturages du Kenya. Il a pris en compte 27 indicateurs socio-économiques et biophysiques obtenus à partir des entretiens approfondis de 302 ménages pour refléter les composantes de la vulnérabilité climatique : capacité d'adaptation, exposition et sensibilité. Le cadre théorique utilisé combine l'exposition et la sensibilité pour produire un impact potentiel, qui a ensuite été comparé à la capacité d'adaptation afin de générer une mesure globale de la vulnérabilité. L'analyse en composantes principales (ACP) a été utilisée pour élaborer des pondérations pour différents indicateurs et produire un indice de vulnérabilité des ménages (IVH) afin de classer les ménages en fonction de leur niveau de vulnérabilité. Afin de comprendre les déterminants de la vulnérabilité aux stress induits par le climat, un modèle probit ordonné a été utilisé avec des variables prédictives. Les résultats montrent que 27 % des ménages étaient très vulnérables, 44 % étaient modérément vulnérables et 29 % des ménages étaient moins vulnérables aux stress induits par le climat. Les estimations factorielles du modèle probit ont en outre révélé que les principaux déterminants de la vulnérabilité pastorale sont le sexe du chef de ménage, l'âge du chef de ménage, le nombre de personnes à charge, l'état matrimonial, les liens sociaux, l'accès aux services de vulgarisation et aux informations d'alerte précoce, la source complémentaire de revenus, la taille et la diversité du troupeau, la structure du troupeau, la mobilité du troupeau, la distance des marchés, la situation professionnelle, les stratégies d'adaptation et l'accès au crédit. Par conséquent, les politiques qui s'attaquent à ces déterminants de la vulnérabilité en mettant l'accent sur l'autonomisation des femmes, l'éducation et la diversification des revenus sont susceptibles d'améliorer la résilience des ménages pastoraux. Este estudio utiliza herramientas estadísticas y econométricas para medir la vulnerabilidad de los hogares en los pastizales de Kenia. Se consideraron 27 indicadores socioeconómicos y biofísicos obtenidos de 302 entrevistas en profundidad de hogares para reflejar los componentes de vulnerabilidad climática: capacidad de adaptación, exposición y sensibilidad. El marco teórico utilizado combina la exposición y la sensibilidad para producir un impacto potencial, que luego se comparó con la capacidad de adaptación para generar una medida general de vulnerabilidad. El análisis de componentes principales (PCA) se utilizó para desarrollar ponderaciones para diferentes indicadores y producir un índice de vulnerabilidad de los hogares (HVI) para clasificar los hogares de acuerdo con su nivel de vulnerabilidad. Para comprender los determinantes de la vulnerabilidad a las tensiones inducidas por el clima, se empleó un modelo probit ordenado con variables predictoras. Los resultados muestran que el 27% de los hogares eran altamente vulnerables, el 44% eran moderadamente vulnerables y el 29% de los hogares eran menos vulnerables a las tensiones inducidas por el clima. Las estimaciones de los factores del modelo probit revelaron además que los principales determinantes de la vulnerabilidad pastoral son el sexo del jefe del hogar, la edad del jefe del hogar, el número de dependientes, el estado civil, los vínculos sociales, el acceso a los servicios de extensión y la información de alerta temprana, la fuente complementaria de ingresos, el tamaño y la diversidad del rebaño, la estructura del rebaño, la movilidad del rebaño, la distancia a los mercados, la situación laboral, las estrategias de afrontamiento y el acceso al crédito. Por lo tanto, es probable que las políticas que abordan estos determinantes de la vulnerabilidad con énfasis en el empoderamiento de las mujeres, la educación y la diversificación de los ingresos mejoren la resiliencia de los hogares pastoriles. This study uses statistical and econometric tools to measure households' vulnerability in pastoral rangelands of Kenya. It considered 27 socio-economic and biophysical indicators obtained from 302 households' in-depth interviews to reflect climate vulnerability components: adaptive capacity, exposure and sensitivity. The theoretical framework used combines exposure and sensitivity to produce potential impact, which was then compared with adaptive capacity in order to generate an overall measure of vulnerability. Principal component analysis (PCA) was used to develop weights for different indicators and produce a household vulnerability index (HVI) so as to classify households according to their level of vulnerability. In order to understand the determinants of vulnerability to climate-induced stresses, an ordered probit model was employed with predictor variables. The results show that 27% of households were highly vulnerable, 44% were moderately vulnerable and 29% of households were less vulnerable to climate-induced stresses. Factor estimates of the probit model further revealed that the main determinants of pastoral vulnerability are sex of household head, age of household head, number of dependents, marital status, social linkages, access to extension services and early warning information, complementary source of income, herd size and diversity, herd structure, herd mobility, distance to markets, employment status, coping strategies and access to credit. Therefore, policies that address these determinants of vulnerability with emphasis on women's empowerment, education and income diversifications are likely to enhance resilience of pastoral households. تستخدم هذه الدراسة أدوات إحصائية واقتصادية قياسية لقياس ضعف الأسر في المراعي الرعوية في كينيا. ونظر في 27 مؤشرًا اجتماعيًا واقتصاديًا وبيوفيزيائيًا تم الحصول عليها من المقابلات المتعمقة التي أجرتها 302 أسرة لتعكس مكونات قابلية التأثر بالمناخ: القدرة على التكيف والتعرض والحساسية. يجمع الإطار النظري المستخدم بين التعرض والحساسية لإحداث تأثير محتمل، والذي تمت مقارنته بعد ذلك بالقدرة على التكيف من أجل توليد مقياس شامل للضعف. تم استخدام تحليل المكونات الرئيسية (PCA) لوضع أوزان لمؤشرات مختلفة وإنتاج مؤشر ضعف الأسرة (HVI) لتصنيف الأسر وفقًا لمستوى ضعفها. من أجل فهم محددات التعرض للضغوط الناجمة عن المناخ، تم استخدام نموذج بروبيت مرتب مع متغيرات التنبؤ. تظهر النتائج أن 27 ٪ من الأسر كانت شديدة الضعف، و 44 ٪ كانت ضعيفة بشكل معتدل و 29 ٪ من الأسر كانت أقل عرضة للضغوط الناجمة عن المناخ. وكشفت تقديرات العوامل لنموذج بروبيت كذلك أن المحددات الرئيسية للضعف الرعوي هي جنس رب الأسرة، وعمر رب الأسرة، وعدد المعالين، والحالة الاجتماعية، والروابط الاجتماعية، والوصول إلى خدمات الإرشاد ومعلومات الإنذار المبكر، ومصدر الدخل التكميلي، وحجم القطيع وتنوعه، وهيكل القطيع، وحركة القطيع، والمسافة إلى الأسواق، وحالة العمالة، واستراتيجيات المواجهة، والوصول إلى الائتمان. لذلك، من المرجح أن تعزز السياسات التي تعالج محددات الضعف هذه مع التركيز على تمكين المرأة والتعليم وتنويع الدخل قدرة الأسر الرعوية على الصمود.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-014-0010-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 113 citations 113 popularity Top 1% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-014-0010-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2014 KenyaPublisher:Frontiers Media SA Funded by:WTWTAuthors: Moses Nyangito; Oliver Wasonga; Francis Opiyo; Francis Opiyo;handle: 11295/74597
Cette étude utilise des outils statistiques et économétriques pour mesurer la vulnérabilité des ménages dans les pâturages du Kenya. Il a pris en compte 27 indicateurs socio-économiques et biophysiques obtenus à partir des entretiens approfondis de 302 ménages pour refléter les composantes de la vulnérabilité climatique : capacité d'adaptation, exposition et sensibilité. Le cadre théorique utilisé combine l'exposition et la sensibilité pour produire un impact potentiel, qui a ensuite été comparé à la capacité d'adaptation afin de générer une mesure globale de la vulnérabilité. L'analyse en composantes principales (ACP) a été utilisée pour élaborer des pondérations pour différents indicateurs et produire un indice de vulnérabilité des ménages (IVH) afin de classer les ménages en fonction de leur niveau de vulnérabilité. Afin de comprendre les déterminants de la vulnérabilité aux stress induits par le climat, un modèle probit ordonné a été utilisé avec des variables prédictives. Les résultats montrent que 27 % des ménages étaient très vulnérables, 44 % étaient modérément vulnérables et 29 % des ménages étaient moins vulnérables aux stress induits par le climat. Les estimations factorielles du modèle probit ont en outre révélé que les principaux déterminants de la vulnérabilité pastorale sont le sexe du chef de ménage, l'âge du chef de ménage, le nombre de personnes à charge, l'état matrimonial, les liens sociaux, l'accès aux services de vulgarisation et aux informations d'alerte précoce, la source complémentaire de revenus, la taille et la diversité du troupeau, la structure du troupeau, la mobilité du troupeau, la distance des marchés, la situation professionnelle, les stratégies d'adaptation et l'accès au crédit. Par conséquent, les politiques qui s'attaquent à ces déterminants de la vulnérabilité en mettant l'accent sur l'autonomisation des femmes, l'éducation et la diversification des revenus sont susceptibles d'améliorer la résilience des ménages pastoraux. Este estudio utiliza herramientas estadísticas y econométricas para medir la vulnerabilidad de los hogares en los pastizales de Kenia. Se consideraron 27 indicadores socioeconómicos y biofísicos obtenidos de 302 entrevistas en profundidad de hogares para reflejar los componentes de vulnerabilidad climática: capacidad de adaptación, exposición y sensibilidad. El marco teórico utilizado combina la exposición y la sensibilidad para producir un impacto potencial, que luego se comparó con la capacidad de adaptación para generar una medida general de vulnerabilidad. El análisis de componentes principales (PCA) se utilizó para desarrollar ponderaciones para diferentes indicadores y producir un índice de vulnerabilidad de los hogares (HVI) para clasificar los hogares de acuerdo con su nivel de vulnerabilidad. Para comprender los determinantes de la vulnerabilidad a las tensiones inducidas por el clima, se empleó un modelo probit ordenado con variables predictoras. Los resultados muestran que el 27% de los hogares eran altamente vulnerables, el 44% eran moderadamente vulnerables y el 29% de los hogares eran menos vulnerables a las tensiones inducidas por el clima. Las estimaciones de los factores del modelo probit revelaron además que los principales determinantes de la vulnerabilidad pastoral son el sexo del jefe del hogar, la edad del jefe del hogar, el número de dependientes, el estado civil, los vínculos sociales, el acceso a los servicios de extensión y la información de alerta temprana, la fuente complementaria de ingresos, el tamaño y la diversidad del rebaño, la estructura del rebaño, la movilidad del rebaño, la distancia a los mercados, la situación laboral, las estrategias de afrontamiento y el acceso al crédito. Por lo tanto, es probable que las políticas que abordan estos determinantes de la vulnerabilidad con énfasis en el empoderamiento de las mujeres, la educación y la diversificación de los ingresos mejoren la resiliencia de los hogares pastoriles. This study uses statistical and econometric tools to measure households' vulnerability in pastoral rangelands of Kenya. It considered 27 socio-economic and biophysical indicators obtained from 302 households' in-depth interviews to reflect climate vulnerability components: adaptive capacity, exposure and sensitivity. The theoretical framework used combines exposure and sensitivity to produce potential impact, which was then compared with adaptive capacity in order to generate an overall measure of vulnerability. Principal component analysis (PCA) was used to develop weights for different indicators and produce a household vulnerability index (HVI) so as to classify households according to their level of vulnerability. In order to understand the determinants of vulnerability to climate-induced stresses, an ordered probit model was employed with predictor variables. The results show that 27% of households were highly vulnerable, 44% were moderately vulnerable and 29% of households were less vulnerable to climate-induced stresses. Factor estimates of the probit model further revealed that the main determinants of pastoral vulnerability are sex of household head, age of household head, number of dependents, marital status, social linkages, access to extension services and early warning information, complementary source of income, herd size and diversity, herd structure, herd mobility, distance to markets, employment status, coping strategies and access to credit. Therefore, policies that address these determinants of vulnerability with emphasis on women's empowerment, education and income diversifications are likely to enhance resilience of pastoral households. تستخدم هذه الدراسة أدوات إحصائية واقتصادية قياسية لقياس ضعف الأسر في المراعي الرعوية في كينيا. ونظر في 27 مؤشرًا اجتماعيًا واقتصاديًا وبيوفيزيائيًا تم الحصول عليها من المقابلات المتعمقة التي أجرتها 302 أسرة لتعكس مكونات قابلية التأثر بالمناخ: القدرة على التكيف والتعرض والحساسية. يجمع الإطار النظري المستخدم بين التعرض والحساسية لإحداث تأثير محتمل، والذي تمت مقارنته بعد ذلك بالقدرة على التكيف من أجل توليد مقياس شامل للضعف. تم استخدام تحليل المكونات الرئيسية (PCA) لوضع أوزان لمؤشرات مختلفة وإنتاج مؤشر ضعف الأسرة (HVI) لتصنيف الأسر وفقًا لمستوى ضعفها. من أجل فهم محددات التعرض للضغوط الناجمة عن المناخ، تم استخدام نموذج بروبيت مرتب مع متغيرات التنبؤ. تظهر النتائج أن 27 ٪ من الأسر كانت شديدة الضعف، و 44 ٪ كانت ضعيفة بشكل معتدل و 29 ٪ من الأسر كانت أقل عرضة للضغوط الناجمة عن المناخ. وكشفت تقديرات العوامل لنموذج بروبيت كذلك أن المحددات الرئيسية للضعف الرعوي هي جنس رب الأسرة، وعمر رب الأسرة، وعدد المعالين، والحالة الاجتماعية، والروابط الاجتماعية، والوصول إلى خدمات الإرشاد ومعلومات الإنذار المبكر، ومصدر الدخل التكميلي، وحجم القطيع وتنوعه، وهيكل القطيع، وحركة القطيع، والمسافة إلى الأسواق، وحالة العمالة، واستراتيجيات المواجهة، والوصول إلى الائتمان. لذلك، من المرجح أن تعزز السياسات التي تعالج محددات الضعف هذه مع التركيز على تمكين المرأة والتعليم وتنويع الدخل قدرة الأسر الرعوية على الصمود.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-014-0010-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess Routesgold 113 citations 113 popularity Top 1% influence Top 10% impulse Top 10% Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s13570-014-0010-9&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu