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Title

Evolutionary History of the Leaf-Toed Gecko Euleptes Europaea reveals recent biogeographic cross-roadd between Sardinia and Corsica

AuthorsSalvi, Daniele; Delaugerre, Michel; Carranza, Salvador ; Harris, D. James
Issue Date2019
CitationXX European Congress of Herpetology (2019)
AbstractThe Corsica-Sardinia archipelago provides a simplified model for studying the response of insular and coastal temperate biotas to the cyclic contraction-expansion of habitats associated to Pleistocene climate and sealevel oscillations. We investigated the phylogeography and historical demography of the Leaf-toed Gecko Euleptes europaea using both mitochondrial and nuclear genetic markers. Phylogenetic analyses uncover several divergent mtDNA lineages with a clear geographic association and with a partial sorting at nuclear loci. These lineages likely diversified during the Pleistocene and show an allopatric pattern, suggesting a scenario of longterm isolation in multiple glacial refugia. Bayesian phylogeographic reconstruction of the spatial diffusion process suggests that during the last glacial phase the northern Sardinia lineage expanded northward and colonized Corsica. The evolutionary history of E. europaea and other co-distributed amphibians and reptiles indicates a major role of Pleistocene climatic oscillations and sea-level dynamics in structuring genetic diversity patterns in the Corso-Sardinian biota.
DescriptionPresentation given at the XX European Congress of Herpetology, held in Milan (Italy), on 2-6th September 2019.
URIhttp://hdl.handle.net/10261/211452
Appears in Collections:(IBE) Comunicaciones congresos
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