Both geography and ecology contribute to mating isolation in guppies.

ABSTRACT: Local adaptation to different environments can promote mating isolation--either as an incidental by-product of trait divergence, or as a result of selection to avoid maladaptive mating. Numerous recent empirical examples point to the common influence of divergent natural selection on speciation based largely on evidence of strong pre-mating isolation between populations from different habitat types. Accumulating evidence for natural selection's influence on speciation is therefore no longer a challenge. The difficulty, rather, is in determining the mechanisms involved in the progress of adaptive divergence to speciation once barriers to gene flow are already present. Here, we present results of both laboratory and field experiments with Trinidadian guppies (Poecilia reticulata) from differ

SUBMITTER: Schwartz AK 

PROVIDER: S-EPMC3002288 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature