Why are populations native to an island vulnerable?

In terms of evolution and reproduction ?

1 Answer

  • Anonymous
    1 decade ago
    Favorite Answer

    populations native to an island are vulnerable because there is no gene flow (migration).

    therefore genetic variation can be decreased significantly as organisms only reproduce with each other. There is no random mating which is important for genetic diversity.

    This loss of genetic variation (i.e. important genes are unwittingly lost) renders populations exposed to disease and other agents of extinction.

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