Unusually high levels of extrapair paternity in a duetting songbird with long-term pair bonds

@article{Benedict2007UnusuallyHL,
  title={Unusually high levels of extrapair paternity in a duetting songbird with long-term pair bonds},
  author={Lauryn Benedict},
  journal={Behavioral Ecology and Sociobiology},
  year={2007},
  volume={62},
  pages={983-988}
}
Previous studies suggest that extrapair young are very rare or absent in socially monogamous avian species that produce vocal duets. These results are generally consistent with functional hypotheses suggesting that duets may signal commitment between partners, or aid males as a paternity guard to ensure genetic as well as social monogamy. Additionally, species that exhibit social monogamy with the same partner across multiple breeding seasons tend to exhibit low levels of extrapair paternity… CONTINUE READING

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