Asymmetric discrimination of geographical variation in song in a migratory passerine

@article{Colbeck2010AsymmetricDO,
  title={Asymmetric discrimination of geographical variation in song in a migratory passerine},
  author={Gabriel J. Colbeck and T. Scott Sillett and Michael S. Webster},
  journal={Animal Behaviour},
  year={2010},
  volume={80},
  pages={311-318}
}
Variation in sexual signals across populations is a common phenomenon, and most research to date has found that individuals discriminate against nonlocal signals. However, the strength of nonlocal signal discrimination can vary asymmetrically across populations, a possibility that has received less attention. Such asymmetries can be due to recognition errors in some populations, variation across populations in the 'quality' of local individuals, such that populations with high-quality… Expand

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