Strategic promiscuity helps avoid inbreeding at multiple levels in a cooperative breeder where both sexes are philopatric.

@article{Brouwer2011StrategicPH,
  title={Strategic promiscuity helps avoid inbreeding at multiple levels in a cooperative breeder where both sexes are philopatric.},
  author={Lyanne Brouwer and Martijn van de Pol and Els Atema and Andrew Cockburn},
  journal={Molecular ecology},
  year={2011},
  volume={20 22},
  pages={4796-807}
}
In cooperative breeders, the tension between the opposing forces of kin selection and kin competition is at its most severe. Although philopatry facilitates kin selection, it also increases the risk of inbreeding. When dispersal is limited, extra-pair paternity might be an important mechanism to avoid inbreeding, but evidence for this is equivocal. The red-winged fairy-wren is part of a genus of cooperative breeders with extreme levels of promiscuity and male philopatry, but is unique in that… CONTINUE READING
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