parapatric speciation
A mode of speciation where populations are geographically adjacent but not completely isolated, allowing limited gene flow. Used in evolutionary biology and ecology.
Parapatric speciation occurs when gene flow is restricted between adjacent populations.
A compound of 側所 (parapatric, from 側 'side' + 所 'place') + 的 (adjective-forming suffix) + 種分化 (speciation). The term is a direct translation of the English 'parapatric speciation'.