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Unravelling the evolutionary history and future prospects of endemic species restricted to former glacial refugia.
Mol Ecol. 2015 Oct; 24(20):5267-83.ME

Abstract

The contemporary distribution and genetic composition of biodiversity bear a signature of species' evolutionary histories and the effects of past climatic oscillations. For many European species, the Mediterranean peninsulas of Iberia, Italy and the Balkans acted as glacial refugia and the source of range recolonization, and as a result, they contain disproportionately high levels of diversity. As these areas are particularly threatened by future climate change, it is important to understand how past climatic changes affected their biodiversity. We use an integrated approach, combining markers with different evolutionary rates and combining phylogenetic analysis with approximate Bayesian computation and species distribution modelling across temporal scales. We relate phylogeographic processes to patterns of genetic variation in Myotis escalerai, a bat species endemic to the Iberian Peninsula. We found a distinct population structure at the mitochondrial level with a strong geographic signature, indicating lineage divergence into separate glacial refugia within the Iberian refugium. However, microsatellite markers suggest higher levels of gene flow resulting in more limited structure at recent time frames. The evolutionary history of M. escalerai was shaped by the effects of climatic oscillations and changes in forest cover and composition, while its future is threatened by climatically induced range contractions and the role of ecological barriers due to competition interactions in restricting its distribution. This study warns that Mediterranean peninsulas, which provided refuge for European biodiversity during past glaciation events, may become a trap for limited dispersal and ecologically limited endemic species under future climate change, resulting in loss of entire lineages.

Authors+Show Affiliations

Division of Biological and Environmental Sciences, School of Natural Sciences, University of Stirling, Stirling, Scotland, FK9 4LA, UK.Estación Biológica de Doñana (CSIC), Avda Americo Vespucio s/n, 41092, Seville, Spain.Estación Biológica de Doñana (CSIC), Avda Americo Vespucio s/n, 41092, Seville, Spain.Laboratorio di Genetica, Istituto Superiore per la Protezione e Ricerca Ambientale, Via Ca' Fornacetta 9, Ozzano dell' Emilia, Bologna, Italy. Department 18/ Section of Environmental Engineering, Aalborg University, Sohngårdsholmsvej 57, 9000, Aalborg, Denmark.Estación Biológica de Doñana (CSIC), Avda Americo Vespucio s/n, 41092, Seville, Spain.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26346923

Citation

Razgour, Orly, et al. "Unravelling the Evolutionary History and Future Prospects of Endemic Species Restricted to Former Glacial Refugia." Molecular Ecology, vol. 24, no. 20, 2015, pp. 5267-83.
Razgour O, Salicini I, Ibáñez C, et al. Unravelling the evolutionary history and future prospects of endemic species restricted to former glacial refugia. Mol Ecol. 2015;24(20):5267-83.
Razgour, O., Salicini, I., Ibáñez, C., Randi, E., & Juste, J. (2015). Unravelling the evolutionary history and future prospects of endemic species restricted to former glacial refugia. Molecular Ecology, 24(20), 5267-83. https://doi.org/10.1111/mec.13379
Razgour O, et al. Unravelling the Evolutionary History and Future Prospects of Endemic Species Restricted to Former Glacial Refugia. Mol Ecol. 2015;24(20):5267-83. PubMed PMID: 26346923.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Unravelling the evolutionary history and future prospects of endemic species restricted to former glacial refugia. AU - Razgour,Orly, AU - Salicini,Irene, AU - Ibáñez,Carlos, AU - Randi,Ettore, AU - Juste,Javier, Y1 - 2015/10/12/ PY - 2014/10/06/received PY - 2015/09/03/revised PY - 2015/09/04/accepted PY - 2015/9/9/entrez PY - 2015/9/9/pubmed PY - 2016/2/5/medline KW - Myotis escalerai KW - approximate Bayesian computation KW - bats KW - climate change KW - phylogeography KW - species distribution modelling SP - 5267 EP - 83 JF - Molecular ecology JO - Mol. Ecol. VL - 24 IS - 20 N2 - The contemporary distribution and genetic composition of biodiversity bear a signature of species' evolutionary histories and the effects of past climatic oscillations. For many European species, the Mediterranean peninsulas of Iberia, Italy and the Balkans acted as glacial refugia and the source of range recolonization, and as a result, they contain disproportionately high levels of diversity. As these areas are particularly threatened by future climate change, it is important to understand how past climatic changes affected their biodiversity. We use an integrated approach, combining markers with different evolutionary rates and combining phylogenetic analysis with approximate Bayesian computation and species distribution modelling across temporal scales. We relate phylogeographic processes to patterns of genetic variation in Myotis escalerai, a bat species endemic to the Iberian Peninsula. We found a distinct population structure at the mitochondrial level with a strong geographic signature, indicating lineage divergence into separate glacial refugia within the Iberian refugium. However, microsatellite markers suggest higher levels of gene flow resulting in more limited structure at recent time frames. The evolutionary history of M. escalerai was shaped by the effects of climatic oscillations and changes in forest cover and composition, while its future is threatened by climatically induced range contractions and the role of ecological barriers due to competition interactions in restricting its distribution. This study warns that Mediterranean peninsulas, which provided refuge for European biodiversity during past glaciation events, may become a trap for limited dispersal and ecologically limited endemic species under future climate change, resulting in loss of entire lineages. SN - 1365-294X UR - https://www.unboundmedicine.com/medline/citation/26346923/Unravelling_the_evolutionary_history_and_future_prospects_of_endemic_species_restricted_to_former_glacial_refugia_ L2 - https://doi.org/10.1111/mec.13379 DB - PRIME DP - Unbound Medicine ER -