RRC ID 81616
Author da Silva CRB, Diamond SE.
Title Local climate change velocities and evolutionary history explain multidirectional range shifts in a North American butterfly assemblage.
Journal J Anim Ecol
Abstract Species are often expected to shift their distributions either poleward or upslope to evade warming climates and colonise new suitable climatic niches. However, from 18-years of fixed transect monitoring data on 88 species of butterfly in the midwestern United States, we show that butterflies are shifting their centroids in all directions, except towards regions that are warming the fastest (southeast). Butterflies shifted their centroids at a mean rate of 4.87 km year-1. The rate of centroid shift was significantly associated with local climate change velocity (temperature by precipitation interaction), but not with mean climate change velocity throughout the species' ranges. Species tended to shift their centroids at a faster rate towards regions that are warming at slower velocities but increasing in precipitation velocity. Surprisingly, species' thermal niche breadth (range of climates butterflies experience throughout their distribution) and wingspan (often used as metric for dispersal capability) were not correlated with the rate at which species shifted their ranges. We observed high phylogenetic signal in the direction species shifted their centroids. However, we found no phylogenetic signal in the rate species shifted their centroids, suggesting less conserved processes determine the rate of range shift than the direction species shift their ranges. This research shows important signatures of multidirectional range shifts (latitudinal and longitudinal) and uniquely shows that local climate change velocities are more important in driving range shifts than the mean climate change velocity throughout a species' entire range.
Volume 93(8)
Pages 1160-1171
Published 2024-6-24
DOI 10.1111/1365-2656.14132
Description BiodiC-J data were referenced.
PMID 38922857
MeSH Animal Distribution* Animals Biological Evolution* Butterflies* / physiology Climate Change* Midwestern United States Phylogeny
IF 4.554
Resource
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