allopatric speciation

(redirected from geographic speciation)
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allopatric speciation

A process in which two or more populations of the same (but geographically separated and non-interbreeding) species become less similar to each other over time, through mutation or survival advantages of different traits in differing environments, and eventually become distinct species.

allopatric speciation

the genetic differentiation of populations which are geographically separate to the point where they become separate SPECIES.
References in periodicals archive ?
These distinctions are illustrated by the two phylogenies in Figure 1, resulting from the two geographic speciation models.
An original architect of the neo-Darwinian synthesis, Mayr is best known for his formulation of the biological species concept and for the theory of geographic speciation.
A special case of geographic speciation is seen in ring species (polytypic species demonstrating circular overlap).
Nevertheless, we suggest that the strongest evidence of geographic speciation mode should result from comparisons of sister species, which have undergone speciation more recently than other sister elements, and had relatively less time for dispersal to obscure the geographic pattern of speciation.