A latitudinal phylogeographic diversity gradient in birds.

ABSTRACT: High tropical species diversity is often attributed to evolutionary dynamics over long timescales. It is possible, however, that latitudinal variation in diversification begins when divergence occurs within species. Phylogeographic data capture this initial stage of diversification in which populations become geographically isolated and begin to differentiate genetically. There is limited understanding of the broader implications of intraspecific diversification because comparative analyses have focused on species inhabiting and evolving in restricted regions and environments. Here, we scale comparative phylogeography up to the hemisphere level and examine whether the processes driving latitudinal differences in species diversity are also evident within species. We collected genetic data f

SUBMITTER: Smith BT 

PROVIDER: S-EPMC5390966 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature