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Type: Journal article
Title: Evolutionary history and past climate change shape the distribution of genetic diversity in terrestrial mammals
Author: Theodoridis, S.
Fordham, D.A.
Brown, S.C.
Li, S.
Rahbek, C.
Nogues-Bravo, D.
Citation: Nature Communications, 2020; 11(1):2557-1-2557-11
Publisher: Nature Research (part of Springer Nature)
Issue Date: 2020
ISSN: 2041-1723
Statement of
Spyros Theodoridis, Damien A. Fordham, Stuart C. Brown, Sen Li, Carsten Rahbek, David Nogues-Bravo
Abstract: Knowledge of global patterns of biodiversity, ranging from intraspecific genetic diversity (GD) to taxonomic and phylogenetic diversity, is essential for identifying and conserving the processes that shape the distribution of life. Yet, global patterns of GD and its drivers remain elusive. Here we assess existing biodiversity theories to explain and predict the global distribution of GD in terrestrial mammal assemblages. We find a strong positive covariation between GD and interspecific diversity, with evolutionary time, reflected in phylogenetic diversity, being the best predictor of GD. Moreover, we reveal the negative effect of past rapid climate change and the positive effect of inter-annual precipitation variability in shaping GD. Our models, explaining almost half of the variation in GD globally, uncover the importance of deep evolutionary history and past climate stability in accumulating and maintaining intraspecific diversity, and constitute a crucial step towards reducing the Wallacean shortfall for an important dimension of biodiversity.
Keywords: Animals
Genetic Variation
Climate Change
Biological Evolution
Description: Published online: 22 May 2020
Rights: © The Author(s) 2020. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit licenses/by/4.0/.
DOI: 10.1038/s41467-020-16449-5
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Environment Institute publications

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