Why do experienced birds reproduce better? Possible endocrine mechanisms in a long-lived seabird, the common tern.

@article{Riechert2012WhyDE,
  title={Why do experienced birds reproduce better? Possible endocrine mechanisms in a long-lived seabird, the common tern.},
  author={Juliane Riechert and Olivier Chastel and Peter H. Becker},
  journal={General and comparative endocrinology},
  year={2012},
  volume={178 2},
  pages={391-9}
}
The influence of age or breeding experience on reproductive success in vertebrates is well known but physiological mechanisms came into focus just recently. Assessing hormone levels could allow insights into these mechanisms and reproductive strategies in long-lived species. Prolactin and corticosterone are two hormones involved in breeding decisions: high prolactin values are necessary for expressing breeding behavior whereas corticosterone is related to activity or stress. We analyzed… CONTINUE READING