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Ledent A, Désamoré A, Laenen B, Mardulyn P, McDaniel SF, Zanatta F, Patiño J, Vanderpoorten A. No borders during the post-glacial assembly of European bryophytes. Ecol Lett 2019; 22:973-986. [PMID: 30900805 DOI: 10.1111/ele.13254] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/11/2018] [Accepted: 02/24/2019] [Indexed: 11/28/2022]
Abstract
Climatic fluctuations during the Last Glacial Maximum (LGM) exerted a profound influence on biodiversity patterns, but their impact on bryophytes, the second most diverse group of land plants, has been poorly documented. Approximate Bayesian computations based on coalescent simulations showed that the post-glacial assembly of European bryophytes involves a complex history from multiple sources. The contribution of allochthonous migrants was 95-100% of expanding populations in about half of the 15 investigated species, which is consistent with the globally balanced genetic diversities and extremely low divergence observed among biogeographical regions. Such a substantial contribution of allochthonous migrants in the post-glacial assembly of Europe is unparalleled in other plants and animals. The limited role of northern micro-refugia, which was unexpected based on bryophyte life-history traits, and of southern refugia, is consistent with recent palaeontological evidence that LGM climates in Eurasia were much colder and drier than what palaeoclimatic models predict.
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Affiliation(s)
- A Ledent
- Institute of Botany, University of Liege, Sart Tilman, 4000, Liege, Belgium
| | - A Désamoré
- Department of Ecology, Environment, and Plant Sciences, Science for Life Laboratory, Stockholm University, Stockholm, Sweden
| | - B Laenen
- Department of Ecology, Environment, and Plant Sciences, Science for Life Laboratory, Stockholm University, Stockholm, Sweden
| | - P Mardulyn
- Evolutionary Biology & Ecology, Université Libre de Bruxelles, 1050, Brussels, Belgium
| | - S F McDaniel
- Biology Department, University of Florida, Gainesville, FL, 32611, USA
| | - F Zanatta
- Institute of Botany, University of Liege, Sart Tilman, 4000, Liege, Belgium
| | - J Patiño
- Plant Conservation and Biogeography Group, Departamento de Botánica, Ecología y Fisiología Vegetal, Universidad de La Laguna, 38071, La Laguna, Spain.,Island Ecology and Evolution Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), 38071, La Laguna, Spain
| | - A Vanderpoorten
- Institute of Botany, University of Liege, Sart Tilman, 4000, Liege, Belgium
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