Conservation phylogeography: does historical diversity contribute to regional vulnerability in European tree frogs (Hyla arborea)?

Détails

Ressource 1Télécharger: BIB_43B406B6D884.P001.pdf (2193.95 [Ko])
Etat: Serval
Version: Final published version
ID Serval
serval:BIB_43B406B6D884
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Conservation phylogeography: does historical diversity contribute to regional vulnerability in European tree frogs (Hyla arborea)?
Périodique
Molecular Ecology
Auteur(s)
Dufresnes C., Wassef J., Ghali K., Brelsford A., Stöck M., Lymberakis P., Crnobrnja-Isailovic J., Perrin N.
ISSN
1365-294X (Electronic)
ISSN-L
0962-1083
Statut éditorial
Publié
Date de publication
2013
Peer-reviewed
Oui
Volume
22
Numéro
22
Pages
5669-5684
Langue
anglais
Résumé
Documenting and preserving the genetic diversity of populations, which conditions their long-term survival, have become a major issue in conservation biology. The loss of diversity often documented in declining populations is usually assumed to result from human disturbances; however, historical biogeographic events, otherwise known to strongly impact diversity, are rarely considered in this context. We apply a multilocus phylogeographic study to investigate the late-Quaternary history of a tree frog (Hyla arborea) with declining populations in the northern and western part of its distribution range. Mitochondrial and nuclear polymorphisms reveal high genetic diversity in the Balkan Peninsula, with a spatial structure moulded by the last glaciations. While two of the main refugial lineages remained limited to the Balkans (Adriatic coast, southern Balkans), a third one expanded to recolonize Northern and Western Europe, loosing much of its diversity in the process. Our findings show that mobile and a priori homogeneous taxa may also display substructure within glacial refugia ('refugia within refugia') and emphasize the importance of the Balkans as a major European biodiversity centre. Moreover, the distribution of diversity roughly coincides with regional conservation situations, consistent with the idea that historically impoverished genetic diversity may interact with anthropogenic disturbances, and increase the vulnerability of populations. Phylogeographic models seem important to fully appreciate the risks of local declines and inform conservation strategies.
Mots-clé
Conservation genetics, phylogeography, Hyla arborea, Quaternary refugia, biodiversity, red list status.
Pubmed
Web of science
Open Access
Oui
Création de la notice
28/08/2013 9:27
Dernière modification de la notice
08/05/2019 17:48
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