Habitat amount and distribution modify community dynamics under climate change.

Autor: Fourcade Y; Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden.; Univ Paris Est Creteil, Sorbonne Université, CNRS, IRD, INRAE, Institut d'écologie et des sciences de l'environnement, IEES, Creteil, F-94010, France., WallisDeVries MF; De Vlinderstichting/Dutch Butterfly Conservation, Wageningen, The Netherlands.; Plant Ecology and Nature Conservation Group, Wageningen University, Wageningen, The Netherlands., Kuussaari M; Biodiversity Centre, Finnish Environment Institute, Helsinki, Finland., van Swaay CAM; De Vlinderstichting/Dutch Butterfly Conservation, Wageningen, The Netherlands., Heliölä J; Biodiversity Centre, Finnish Environment Institute, Helsinki, Finland., Öckinger E; Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
Jazyk: angličtina
Zdroj: Ecology letters [Ecol Lett] 2021 May; Vol. 24 (5), pp. 950-957. Date of Electronic Publication: 2021 Mar 11.
DOI: 10.1111/ele.13691
Abstrakt: Habitat fragmentation may present a major impediment to species range shifts caused by climate change, but how it affects local community dynamics in a changing climate has so far not been adequately investigated empirically. Using long-term monitoring data of butterfly assemblages, we tested the effects of the amount and distribution of semi-natural habitat (SNH), moderated by species traits, on climate-driven species turnover. We found that spatially dispersed SNH favoured the colonisation of warm-adapted and mobile species. In contrast, extinction risk of cold-adapted species increased in dispersed (as opposed to aggregated) habitats and when the amount of SNH was low. Strengthening habitat networks by maintaining or creating stepping-stone patches could thus allow warm-adapted species to expand their range, while increasing the area of natural habitat and its spatial cohesion may be important to aid the local persistence of species threatened by a warming climate.
(© 2021 The Authors. Ecology Letters published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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