House finches were found only in western North America until 1939,when a few individuals were released in New York City.These individuals established a breeding population and gradually expanded their range.The western population also expanded its range somewhat eastward,and the two populations have recently come in contact.If the two forms were unable to interbreed when their expanding ranges meet,what would this situation illustrate?

Question

Quizplus · Accepted Answer

This situation illustrates allopatric speciation, where populations become reproductively isolated due to geographic barriers (in this case, distance), leading to the evolution of distinct species.

House Finches Were Found Only in Western North America Until