sympatrie
Sympatry, from the Greek syn- meaning together and patria meaning homeland, is a term used in biogeography and evolutionary biology to describe a situation in which two or more populations, species, or taxa occupy the same or overlapping geographic area. This overlap enables potential interaction and gene flow, contrasting with allopatry, where populations are geographically separated, and parapatry, where ranges are adjacent with limited contact.
In the context of speciation, sympatry refers to the divergence of populations within a single geographic area,
Examples of sympatry include certain cichlid fishes in African crater lakes that have diversified within the
Mechanisms associated with sympatric processes typically involve disruptive selection on ecological or mating traits, assortative mating