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Influence of past and future climate changes on the distribution of three Southeast Asian murine rodents

doi: 10.1111/jbi.12528
AbstractAimWe tested the influence of Pleistocene climatic fluctuations and the potential effect of future climate change on Southeast Asian small mammal distributions using two forest‐dwelling (Leopoldamys herberti and Leopoldamys sabanus) and one karst (Leopoldamys neilli) endemic rodent species as models.LocationSoutheast Asia.MethodsWe used presence–absence data of genetically identified individuals, bioclimatic variables and species distribution modelling techniques to predict potential distributions of the three studied species under current, past [Last Interglacial (LIG) and Last Glacial Maximum (LGM)] and future conditions. We applied a variety of modelling techniques and then used consensus techniques to draw up robust maps of potential distribution ranges at all stages.ResultsAccording to our models, these three Leopoldamys species did not experience significant range contraction during the LGM. Our models revealed substantial range contraction during the LIG for L. herberti in northern Indochina, while its distribution expanded in southern Indochina. Evidence of a southward range expansion during that period was also obtained for L. neilli, whereas L. sabanus remained widely distributed in insular Southeast Asia but experienced a range contraction on the Thai‐Malay Peninsula. The two future climate change scenarios used predicted that large climatically suitable areas would still be available in the future for the three species.Main conclusionsOur model predictions contradict the well‐established hypothesis that Southeast Asian forest‐dwelling species were confined to small refugia during the LGM. Moreover, our results suggest that some Southeast Asian taxa may have been distributed in their refugial state during the LIG rather than the LGM. This could be because of vegetation changes that may have occurred at that time as a result of the increased seasonality observed during the LIG. These Pleistocene refugia may have been localized in northern Indochina but our study also revealed that southern Indochina could provide major potential refugia.
- UNIVERSITE DE MONTPELLIER II France
- Université de Montpellier (EPE) France
- Laboratoire Parole et Langage France
- Mahasarakham University Thailand
- William & Mary United States
[SHS.GEO] Humanities and Social Sciences/Geography, 590, [ SHS.GEO ] Humanities and Social Sciences/Geography, Species distribution modelling, Dynamique des populations, Climate change, [SDV.EE]Life Sciences [q-bio]/Ecology, environment, Last Glacial Maximum, [SHS.GEO]Humanities and Social Sciences/Geography, Southeast Asia, Pleistocene, [SDV.EE] Life Sciences [q-bio]/Ecology, environment, rodents, environment, P40 - Météorologie et climatologie, Distribution géographique, Évaluation du risque, Froid, Last Interglacial, Rodents, [ SDV.EE ] Life Sciences [q-bio]/Ecology, environment, L20 - Ecologie animale, modelling, [SDV.EE]Life Sciences [q-bio]/Ecology, Leopoldamys, Changement climatique, [ SDE.BE ] Environmental Sciences/Biodiversity and Ecology, L60 - Taxonomie et géographie animales, Modèle de simulation, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, species distribution, Écologie animale, Rongeur, Murinae, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, agrovoc: agrovoc:c_13948, agrovoc: agrovoc:c_24242, agrovoc: agrovoc:c_6111, agrovoc: agrovoc:c_37932, agrovoc: agrovoc:c_1666, agrovoc: agrovoc:c_1743, agrovoc: agrovoc:c_5083, agrovoc: agrovoc:c_4073, agrovoc: agrovoc:c_7260, agrovoc: agrovoc:c_7701, agrovoc: agrovoc:c_12076, agrovoc: agrovoc:c_427
[SHS.GEO] Humanities and Social Sciences/Geography, 590, [ SHS.GEO ] Humanities and Social Sciences/Geography, Species distribution modelling, Dynamique des populations, Climate change, [SDV.EE]Life Sciences [q-bio]/Ecology, environment, Last Glacial Maximum, [SHS.GEO]Humanities and Social Sciences/Geography, Southeast Asia, Pleistocene, [SDV.EE] Life Sciences [q-bio]/Ecology, environment, rodents, environment, P40 - Météorologie et climatologie, Distribution géographique, Évaluation du risque, Froid, Last Interglacial, Rodents, [ SDV.EE ] Life Sciences [q-bio]/Ecology, environment, L20 - Ecologie animale, modelling, [SDV.EE]Life Sciences [q-bio]/Ecology, Leopoldamys, Changement climatique, [ SDE.BE ] Environmental Sciences/Biodiversity and Ecology, L60 - Taxonomie et géographie animales, Modèle de simulation, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, species distribution, Écologie animale, Rongeur, Murinae, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, agrovoc: agrovoc:c_13948, agrovoc: agrovoc:c_24242, agrovoc: agrovoc:c_6111, agrovoc: agrovoc:c_37932, agrovoc: agrovoc:c_1666, agrovoc: agrovoc:c_1743, agrovoc: agrovoc:c_5083, agrovoc: agrovoc:c_4073, agrovoc: agrovoc:c_7260, agrovoc: agrovoc:c_7701, agrovoc: agrovoc:c_12076, agrovoc: agrovoc:c_427
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).22 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10%
