Journal
ECOLOGY LETTERS
Volume 24, Issue 5, Pages 950-957Publisher
WILEY
DOI: 10.1111/ele.13691
Keywords
Butterflies; climate change; community dynamics; community temperature index; fragmentation; habitat amount; habitat configuration; semi‐ natural habitat; species traits
Categories
Funding
- Swedish Research Council FORMAS [942-2015-988]
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Habitat fragmentation can affect species distribution changes caused by climate change, and the spatial distribution of SNH plays a key role in species turnover.
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.
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