Is biological speciation possible in a geographically isolated population?

Speciation in a geographically isolated population is just the most common type of speciation (the so-called allopatric speciation). If a population is reproductively isolated from other populations of this species, then due to mutational and genetic-automatic processes, irreversible changes accumulate in its gene pool, which distinguish it from all other populations. In addition, the specificity of habitat conditions can lead to the development of unique adaptations. Over time, the differences of this population from all others can reach the species rank.

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