vicariance

n.(同类动、 植物因地壳变动产生的山脉和海洋等阻隔所造成的)地理分隔

a mode of speciation in which the geographic barrier leads to the separation of a population into two or more distinct species

名词

1. The vicariance event caused the isolation of the bird population and eventually resulted in the formation of two separate species.
2. Vicariance plays a significant role in the process of biodiversity evolution.