Egg coloration in ring-billed gulls (Larus delawarensis): a test of the sexual signaling hypothesis

@article{Hanley2008EggCI,
  title={Egg coloration in ring-billed gulls (Larus delawarensis): a test of the sexual signaling hypothesis},
  author={Daniel F. Hanley and St{\'e}phanie M. Doucet},
  journal={Behavioral Ecology and Sociobiology},
  year={2008},
  volume={63},
  pages={719-729}
}
Although many avian eggs appear to be cryptically colored, many species also lay vibrant blue green eggs. This seemingly conspicuous coloration has puzzled biologists since Wallace, as natural selection should favor reduced egg visibility to minimize predation pressure. The sexual signaling hypothesis posits that blue green egg coloration serves as a signal of female quality and that males exert post-mating sexual selection on this trait by investing more in the nests of females laying more… CONTINUE READING

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