allopatry
/əˈlɑpətri/
noun
- The state or condition of populations or species living in separate geographic areas, preventing interbreeding.
- Researchers observed allopatry in the butterfly populations on different islands.
- Allopatry is a key factor in the formation of new species.
- The allopatry of these two lizard groups is due to a wide desert between them.
Antonyms