The correct term is alopátrica (or also Alopátrida), in both cases with tilde. It is a term used in biology and ecology. It refers to the differentiation in the evolution of two populations of the same species, which by natural barriers are isolated and over time form two different species according to the ecosystem in which each one lives. It can be due to the continental drift or to the generation of very high mountain systems. In short it is a geographical isolation.
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