Emerging phylogeographic patterns of plants and terrestrial vertebrates from Patagonia

SÉRSIC, A.N.; COSACOV, A.; COCUCCI, A.A.; JOHNSON, L.; POZNER, R.; AVILA, L.; SITES, J.W. JR.; MORANDO, M.

BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY

WILEY-BLACKWELL PUBLISHING, INC

Año: 2011 vol. 103 p. 475 - 494

0024-4066

Phylogeographical inferences, applied in a comparative framework across multiple species at a regional scale,provide the means for detecting regional and landscape-level patterns of biodiversity, which are important forunderstanding macroecology and evolution in a geographical mosaic against a backdrop broadly impacted bygeological events. Although information on Patagonian phylogeographical patterns has accumulated for bothaquatic and terrestrial organisms in recent years, no attempt has been made to compare patterns across majororganismal groups. In this review, we compiled studies on the phylogeography of co-distributed plants andterrestrial vertebrates from Patagonia. From each study, we extracted information on levels of genetic diversity,and inferred demographic processes and phylogeographical breaks, as well as on putative refugia, to produce thefirst summary of emerging phylogeographical patterns for this region. This review reveals some congruentphylogeographical patterns within and among plants and terrestrial vertebrates, and suggests that Pre-Quaternary as well as Quaternary geological events would have been important driving forces in the evolutionaryhistory of Patagonian lineages. Different processes and directional range shifts suggest a mosaic of phylogeo-graphical patterns, far more complex than the several north?south common patterns traditionally proposed.© 2011 The Linnean Society of London, Biological Journal of the Linnean Society, 2011, 103, 475?494.ADDITIONAL KEYWORDS: biogeography ? comparative phylogeography ? demographic processes ? geneticdiversity ? glacial refugia ? Patagonian mammals ? Patagonian reptiles ? Patagonian plants ? Pleistoceneglaciations ? Pre-Quaternary processes.