Synchronizing feather-based measures of corticosterone and carotenoid-dependent signals: what relationships do we expect?

@article{Fairhurst2013SynchronizingFM,
  title={Synchronizing feather-based measures of corticosterone and carotenoid-dependent signals: what relationships do we expect?},
  author={Graham D. Fairhurst and Russell D. Dawson and Harry van Oort and Gary R. Bortolotti},
  journal={Oecologia},
  year={2013},
  volume={174},
  pages={689-698}
}
Carotenoids produce many of the red, orange and yellow signal traits of birds, and individuals must trade off utilizing carotenoids for physiological processes versus ornamentation. Proximate mechanisms regulating this trade-off are poorly understood, despite their importance for expression of color signals. Corticosterone (CORT) may play a significant mechanistic role in signal expression because it mobilizes energy substrates and influences foraging behavior. We used a unique feather-based… 

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