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Climate migrants’survival threatened by“C”shaped anthropic barriers

Integrative Zoology 2020年第1期15卷 32-39页

作者： luca butikofer Weihong JI Roberto SACCHI Marco MANGIACOTTI School of Natural and Computational Sciences Massey UniversityNew Zealand Department of Earth and Environmental Science University of Pavia PaviaItaly

Despite studies on range shifts being abundant,the problem of dispersal barriers limiting climate migrants’movement is yet to be fully included into any modeling *** this reason,we introduce a novel concept whereby the interplay of range shifts and dispersal barriers of a particular spatial configuration can threaten the persistence of populations under a climate change *** named this concept“C-trap,”based on the topographic shape of such *** elaborating on the theoretical features of C-traps,we provide a simple method that combines environmental data and future climate projections to locate them *** use this method to determine where high C-trap densities have the potential to further threaten the conservation of endangered,endemic animals across the world’s terrestrial realm,in a climate change *** methodology detected potential C-traps for the study system,with areas of high density mostly located in east Europe,south Asia and North ***,finer-scale analyses are required to assess the magnitude of the threat *** barriers add an additional dimension to range shift studies and can ultimately prevent otherwise successful climate migrants from tracking their climatic *** methodology presented here is simple and flexible enough to be adapted to a wide range of taxa and locations as well as the fast development of range shift ***,we encourage researchers to include the effects of anthropogenic dispersal barriers in range shifts models and in the planning of effective conservation strategies with reference to climate change.

关键词： anthropogenic climate change land cover range shift trap

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