| local-scale environmental variation generates highly divergent lineages associated with stream drainages in a terrestrial salamander, plethodon caddoensis. | spatial and temporal heterogeneity in environmental factors can have profound effects on diversification in species that are tightly linked to their environments. the caddo mountain salamander (plethodon caddoensis) inhabits a unique physiographic section of the ouachita mountains in central north america, a region in which pleistocene climatic fluctuations have been implicated in driving lineage diversification in two other closely related salamanders. we examined p. caddoensis to determine whe ... | 2011 | 21414415 |