Postmigratory body condition and ovarian steroid production predict breeding decisions by female gray-headed albatrosses.

@article{Crossin2013PostmigratoryBC,
  title={Postmigratory body condition and ovarian steroid production predict breeding decisions by female gray-headed albatrosses.},
  author={Glenn T Crossin and Richard A. Phillips and Katherine E. Wynne-Edwards and Tony D Williams},
  journal={Physiological and biochemical zoology : PBZ},
  year={2013},
  volume={86 6},
  pages={761-8}
}
Carryover effects have been documented in many migratory bird species, but we know little about the physiological mechanisms that mediate those effects. Here we show that the energetic, endocrine, and aerobic characteristics of postmigratory female gray-headed albatrosses (Thalassarche chrysostoma) can affect their decision to breed. All females in this study, whether breeding or not, were secreting ovarian steroids when they arrived at the breeding colony at Bird Island, South Georgia, which… CONTINUE READING