Testing for shared biogeographic history in the lower Central American freshwater fish assemblage using comparative phylogeography: concerted, independent, or multiple evolutionary responses?

ABSTRACT: A central goal of comparative phylogeography is determining whether codistributed species experienced (1) concerted evolutionary responses to past geological and climatic events, indicated by congruent spatial and temporal patterns ("concerted-response hypothesis"); (2) independent responses, indicated by spatial incongruence ("independent-response hypothesis"); or (3) multiple responses ("multiple-response hypothesis"), indicated by spatial congruence but temporal incongruence ("pseudocongruence") or spatial and temporal incongruence ("pseudoincongruence"). We tested these competing hypotheses using DNA sequence data from three livebearing fish species codistributed in the Nicaraguan depression of Central America (Alfaro cultratus, Poecilia gillii, and Xenophallus umbratilis) that we pred

SUBMITTER: Bagley JC 

PROVIDER: S-EPMC4063468 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature