Article
Reduced responses to selection after species range expansion.
Science (New York, N.Y.) - 4 Jul 2008
Pujol Benoit, Pannell John R
Abstract excerpt
Species range expansion reduces genetic variation at the margins of a species range and should thus compromise the adaptive potential of its marginal populations. Remarkably, this prediction has not previously been tested. Here, we show that populations of the plant Mercurialis annua, which expanded its range into Spain and Portugal from North Africa after the Pleistocene glaciation, respond to selection on a key...
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