A ALLOPATRIC SPECIATION Allopatric speciationAllopatric speciationAllopatry, meaning 'in another place', describes a population or species that is physically isolated from other similar groups by an extrinsic barrier to dispersal. ... Allopatric taxa are often separated by a physical barrier to dispersal, such as a river or mountain range.
› topics › allopatryAllopatry - an overview | ScienceDirect Topics involves geographical isolation of a population from other populations of the parental species, and acquisition of characters that promote or ensure reproductive isolation once sympatry is reestablished.