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Coloration of chicks modulates costly interactions among family members

Author

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  • Judith Morales
  • Alberto Velando

Abstract

Offspring in many animals display ornaments during parental dependency, but their role remains unclear. By reducing the plumage color of blue tit nestlings, we found that color influences sib-sib interactions, and also interactions between fathers (but not mothers) and chicks. Color-reduced nestlings received similar amounts of parental food, but they gained less body mass than control siblings, suggesting that ornamentation during early life plays an important role on social-mediated costs.

Suggested Citation

  • Judith Morales & Alberto Velando, 2018. "Coloration of chicks modulates costly interactions among family members," Behavioral Ecology, International Society for Behavioral Ecology, vol. 29(4), pages 894-903.
    • Handle: RePEc:oup:beheco:v:29:y:2018:i:4:p:894-903.
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    File URL: http://hdl.handle.net/10.1093/beheco/ary057
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