Phylogeography of a Patagonian lizard and frog: Congruent signature of southern glacial refuges

• DOI: 10.1111/aec.12325
• Publication Date: 2016-02-26T09:20:01Z
• Authors: Marcela A. Vidal; Soledad Ibáñez; Patricio I. Moreno; Elie Poulin
• Keywords: Vicariance

Abstract Pleistocene glaciations produced significant increases in continental ice cover polar and mid‐latitude temperate areas, sea‐level declines shifts reshuffling of biomes, all which promote either isolation, coalescence or fragmentation the distribution land biota. If populations several taxa have been co‐distributed for a prolonged time, if periods between perturbation vicariance processes more less stable, it is expected that divergence patterns closely related ecologically similar species will be congruent because their biological demographic characteristics. Based on this premise, we analysed phylogeographic structure (c ytochrome b ) Liolaemus pictus Batrachyla leptopus , two widely lizard frog species, respectively, Chiloé Archipelago southern Chile, to decipher genetic response common climatic environmental history. Haplotype network analysis Bayesian inference suggest an evolutionary pattern diversity consistent with Quaternary glacial history suggests complex species. High‐divergence levels among haplotypes some island archipelago also connectivity putative refuges from Island mainland along exposed shelf during sea level minima associated most recent glaciations. Our results are our hypothesis responded parallel historical events process last maximum (approximately 41°S) has sufficient influence structure.