...Restriction in dispersal due to geographic isolation has probably hindered gene flow, thus allowing rapid local adaptation, recognizable in variation at the infraspecific level...
Emil K. Urban 「Birds from Coahuila, Mexico」
...Butthere is no evidence of gene flow between the paler coastal specimensand B...
Robert L. Packard 「Speciation and Evolution of the Pygmy Mice, Genus Baiomys」
...Absence of physiographic and biotic barriersin the corridor between these two basins probably allows forsome gene flow between handleyi and grisescens, and results inpopulations intermediate in color...
Robert L. Packard 「Speciation and Evolution of the Pygmy Mice, Genus Baiomys」
...The difference in elevation and floraseems to restrict gene flow between handleyi and the more northernnigrescens...
Robert L. Packard 「Speciation and Evolution of the Pygmy Mice, Genus Baiomys」
...The Río Grande de Santiago may have acted in the past as aphysical barrier reducing gene flow between allex and paulus andin separating completely the two populations for limited periods...
Robert L. Packard 「Speciation and Evolution of the Pygmy Mice, Genus Baiomys」
...Such casesare gene rally marked by some circumstances that betray its character,and naturally rouse the indignation of the Government...
Charles Sturt 「Expedition into Central Australia」
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