Rapid climate change results in long-lasting spatial homogenization of phylogenetic diversity

Bianca Saladin (), Loïc Pellissier, Catherine H. Graham, Michael P. Nobis, Nicolas Salamin and Niklaus E. Zimmermann
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Bianca Saladin: Swiss Federal Research Institute WSL
Loïc Pellissier: Swiss Federal Research Institute WSL
Catherine H. Graham: Swiss Federal Research Institute WSL
Michael P. Nobis: Swiss Federal Research Institute WSL
Nicolas Salamin: University of Lausanne
Niklaus E. Zimmermann: Swiss Federal Research Institute WSL

Nature Communications, 2020, vol. 11, issue 1, 1-8

Abstract: Abstract Scientific understanding of biodiversity dynamics, resulting from past climate oscillations and projections of future changes in biodiversity, has advanced over the past decade. Little is known about how these responses, past or future, are spatially connected. Analyzing the spatial variability in biodiversity provides insight into how climate change affects the accumulation of diversity across space. Here, we evaluate the spatial variation of phylogenetic diversity of European seed plants among neighboring sites and assess the effects of past rapid climate changes during the Quaternary on these patterns. Our work shows a marked homogenization in phylogenetic diversity across Central and Northern Europe linked to high climate change velocity and large distances to refugia. Our results suggest that the future projected loss in evolutionary heritage may be even more dramatic, as homogenization in response to rapid climate change has occurred among sites across large landscapes, leaving a legacy that has lasted for millennia.

Date: 2020
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DOI: 10.1038/s41467-020-18343-6

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