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Biogeographic links between southern Atlantic Forest and western South America : rediscovery, re-description, and phylogenetic relationships of two rare montane anole lizards from Brazil [Molecular Phylogenetics and Evolution]

Keywords : Anolis, Dactyloidae, Dactyloa, biogeography, Mainland, Atlantic Forest

par Frédéric Magné - publié le

Data on species ranges and phylogenetic relationships are key in historical biogeographical inference. In South America, our understanding of the evolutionary processes that underlie biodiversity patterns varies greatly across regions. Little is known, for instance, about the drivers of high endemism in the southern montane region of the Atlantic Rainforest. In this region, former biogeographic connections with other South American ecosystems have been invoked to explain the phylogenetic affinities of a number of endemic taxa. This may also be the case of the montane anole lizards Anolis nasofrontalis and A. pseudotigrinus, known from few specimens collected more than 40 years ago. We combine new genetic data with published sequences of species in the Dactyloa clade of Anolis to investigate the phylogenetic relationships of A. nasofrontalis and A. pseudotigrinus, as well as estimate divergence times from their closest relatives.(...)

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