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Cross-realm assessment of climate change impacts on species’ abundance trends [Nature Ecology & Evolution]

Keywords : climate-change ecology, community ecology, macroecology, population dynamics

par Frédéric Magné - publié le

Climate change, land-use change, pollution and exploitation are among the main drivers of species’ population trends ; however, their relative importance is much debated. We used a unique collection of over 1,000 local population time series in 22 communities across terrestrial, freshwater and marine realms within central Europe to compare the impacts of long-term temperature change and other environmental drivers from 1980 onwards. To disentangle different drivers, we related species’ population trends to species- and driver-specific attributes, such as temperature and habitat preference or pollution tolerance. We found a consistent impact of temperature change on the local abundances of terrestrial species. Populations of warm-dwelling species increased more than those of cold-dwelling species. In contrast, impacts of temperature change on aquatic species’ abundances were variable.(...)

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