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Biotic interchange
Process of inter-biota invasion after removal of dispersal barriers
Biotic interchange is the process by which species from one biota invade another biota, usually due to the disappearance of a previously impassable barrier.[1] These dispersal barriers can be physical, climatic, or biological and can include bodies of water or ice, land features like mountains, climate zones, or competition between species.[2][1] Biotic interchange has been documented to occur in marine, freshwater, and terrestrial environments.[3]