| phylogeographic analyses of the southern leopard frog: the impact of geography and climate on the distribution of genetic lineages vs. subspecies. | the southeastern united states is a major phylogeographic break hotspot for amphibians, but the processes underlying this hotspot remain to be explicitly tested. we test the correlation of genetic lineages with subspecies breaks in the southeastern united states and the association of such breaks with climate, using rana sphenocephala as a case study, and place our results in the broader context of the alabama-appalachian suture zone (al-appalachian sz). we use genetic and ecological methods to ... | 2011 | 22066968 |