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AbstractClimate change will affect semiarid ecosystems through severe droughts that increase the competition for resources in plant and microbial communities. In these habitats, adaptations to climate change may consist of thinning—that reduces competition for resources through a decrease in tree density and the promotion of plant survival. We deciphered the functional and phylogenetic responses of the microbial community to 60 years of drought induced by rainfall exclusion and how forest management affects its resistance to drought, in a semiarid forest ecosystem dominated byPinus halepensisMill. A multiOMICapproach was applied to reveal novel, community‐based strategies in the face of climate change. The diversity and the composition of the total and active soil microbiome were evaluated by 16SrRNAgene (bacteria) andITS(fungal) sequencing, and by metaproteomics. The microbial biomass was analyzed by phospholipid fatty acids (PLFAs), and the microbially mediated ecosystem multifunctionality was studied by the integration of soil enzyme activities related to the cycles of C, N, and P. The microbial biomass and ecosystem multifunctionality decreased in drought‐plots, as a consequence of the lower soil moisture and poorer plant development, but this decrease was more notable in unthinned plots. The structure and diversity of the total bacterial community was unaffected by drought at phylum and order level, but did so at genus level, and was influenced by seasonality. However, the total fungal community and the active microbial community were more sensitive to drought and were related to ecosystem multifunctionality. Thinning in plots without drought increased the active diversity while the total diversity was not affected. Thinning promoted the resistance of ecosystem multifunctionality to drought through changes in the active microbial community. The integration of total and active microbiome analyses avoids misinterpretations of the links between the soil microbial community and climate change.

AbstractClimate change will affect semiarid ecosystems through severe droughts that increase the competition for resources in plant and microbial communities. In these habitats, adaptations to climate change may consist of thinning—that reduces competition for resources through a decrease in tree density and the promotion of plant survival. We deciphered the functional and phylogenetic responses of the microbial community to 60 years of drought induced by rainfall exclusion and how forest management affects its resistance to drought, in a semiarid forest ecosystem dominated byPinus halepensisMill. A multiOMICapproach was applied to reveal novel, community‐based strategies in the face of climate change. The diversity and the composition of the total and active soil microbiome were evaluated by 16SrRNAgene (bacteria) andITS(fungal) sequencing, and by metaproteomics. The microbial biomass was analyzed by phospholipid fatty acids (PLFAs), and the microbially mediated ecosystem multifunctionality was studied by the integration of soil enzyme activities related to the cycles of C, N, and P. The microbial biomass and ecosystem multifunctionality decreased in drought‐plots, as a consequence of the lower soil moisture and poorer plant development, but this decrease was more notable in unthinned plots. The structure and diversity of the total bacterial community was unaffected by drought at phylum and order level, but did so at genus level, and was influenced by seasonality. However, the total fungal community and the active microbial community were more sensitive to drought and were related to ecosystem multifunctionality. Thinning in plots without drought increased the active diversity while the total diversity was not affected. Thinning promoted the resistance of ecosystem multifunctionality to drought through changes in the active microbial community. The integration of total and active microbiome analyses avoids misinterpretations of the links between the soil microbial community and climate change.

Abstract The distribution of species can expand or retreat following environmental changes. Climate change is driving changes in the distribution of several species. Changes in mangrove distributions have been reported subsequent to an increase in temperature following a tropicalization process. This study documents the presence of Conocarpus erectus above the reported northern limit for the Gulf of California (GC), updating its distribution limit in the Neotropic. The current northern distribution limit of C. erectus in the Pacific Ocean was found at Huatabampo, Sonora (26.69° N, −109.58° W) and San Jose Island, Baja California Sur (25.04° N, −110.63° W), which is different from previous estimates (1970: 23.23° N, −106.32° W; 2011: 23.31° N, −110.17° W). According to the model of the Center for Scientific Research and Higher Education of Ensenada (CICESE), the C. erectus seeds could be potentially dispersed as far north as Tiburon Island, Sonora. The sea surface temperature (SST) tended to increase more than >0.02 °C, which means an important increment on a decadal scale in the GC's SST. The temperature databases (atmospheric and SST) corroborated a temperature increase in this region since the 1980s. The expansion of C. erectus from its northern distribution limit supports the tropicalization process occurring in the GC. The current distribution and dominance of mangrove species in the GC could be changing due to oceanographic (e.g., El Nino-Southern Oscillation) and coastal (e.g., temperature and precipitation) changes. These types of changes have been reported previously in this region and for other mangrove distributional limits. These changes in mangrove distribution are expected to be accompanied by changes in the biota as well as in the provision of ecosystem services. Further and more specific studies are necessary to corroborate the changes in the distribution and the dominance/coverage of other mangrove species. The potential expansion of C. erectus could provide unique ecosystem services in arid and semiarid regions.

Abstract The distribution of species can expand or retreat following environmental changes. Climate change is driving changes in the distribution of several species. Changes in mangrove distributions have been reported subsequent to an increase in temperature following a tropicalization process. This study documents the presence of Conocarpus erectus above the reported northern limit for the Gulf of California (GC), updating its distribution limit in the Neotropic. The current northern distribution limit of C. erectus in the Pacific Ocean was found at Huatabampo, Sonora (26.69° N, −109.58° W) and San Jose Island, Baja California Sur (25.04° N, −110.63° W), which is different from previous estimates (1970: 23.23° N, −106.32° W; 2011: 23.31° N, −110.17° W). According to the model of the Center for Scientific Research and Higher Education of Ensenada (CICESE), the C. erectus seeds could be potentially dispersed as far north as Tiburon Island, Sonora. The sea surface temperature (SST) tended to increase more than >0.02 °C, which means an important increment on a decadal scale in the GC's SST. The temperature databases (atmospheric and SST) corroborated a temperature increase in this region since the 1980s. The expansion of C. erectus from its northern distribution limit supports the tropicalization process occurring in the GC. The current distribution and dominance of mangrove species in the GC could be changing due to oceanographic (e.g., El Nino-Southern Oscillation) and coastal (e.g., temperature and precipitation) changes. These types of changes have been reported previously in this region and for other mangrove distributional limits. These changes in mangrove distribution are expected to be accompanied by changes in the biota as well as in the provision of ecosystem services. Further and more specific studies are necessary to corroborate the changes in the distribution and the dominance/coverage of other mangrove species. The potential expansion of C. erectus could provide unique ecosystem services in arid and semiarid regions.

Two-step, solar thermochemical splitting of water using nonstoichiometric redox-active metal oxides has emerged as an intriguing approach for large-scale hydrogen production. Perovskites have been ...

Two-step, solar thermochemical splitting of water using nonstoichiometric redox-active metal oxides has emerged as an intriguing approach for large-scale hydrogen production. Perovskites have been ...

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.