Viability and expression of sexual ornaments in the barn swallow Hirundo rustica: a meta-analysis.

  title={Viability and expression of sexual ornaments in the barn swallow Hirundo rustica: a meta-analysis.},
  author={Andrea Romano and Nicola Saino and Anders Pape M\oller},
  journal={Journal of evolutionary biology},
  volume={30 10},
Sexual selection results in the evolution of exaggerated secondary sexual characters that can entail a viability cost. However, in species where sexual ornaments honestly reflect individual quality, the viability cost of secondary sexual characters may be overwhelmed by variation in individual quality, leading to expect that individuals with the largest secondary sexual characters show higher, rather than lower viability. Here, we used meta-analyses to test whether such expected positive… CONTINUE READING
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