Population fragmentation causes inadequate gene flow and increases extinction risk
Keyword(s):
Most species now have fragmented distributions, often with adverse genetic consequences. The genetic impacts of population fragmentation depend critically upon gene flow among fragments and their effective sizes. Fragmentation with cessation of gene flow is highly harmful in the long term, leading to greater inbreeding, increased loss of genetic diversity, decreased likelihood of evolutionary adaptation and elevated extinction risk, when compared to a single population of the same total size. The consequences of fragmentation with limited gene flow typically lie between those for a large population with random mating and isolated population fragments with no gene flow.
2017 ◽
Keyword(s):
1999 ◽
Vol 47
(4)
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pp. 213-224
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Keyword(s):
2014 ◽
Vol 71
(7)
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pp. 1619-1628
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2020 ◽
2020 ◽