Article
Extra-group mating increases inbreeding risk in a cooperatively breeding bird.
Molecular ecology - 1 Nov 2013
Harrison X A, York J E, Cram D L, Young A J
Abstract excerpt
In many cooperatively breeding species, females mate extra-group, the adaptive value of which remains poorly understood. One hypothesis posits that females employ extra-group mating to access mates whose genotypes are more dissimilar to their own than their social mates, so as to increase offspring heterozygosity. We test this hypothesis using life history and genetic data from 36 cooperatively breeding...
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