Annual gonadal cycles in birds: Modeling the effects of photoperiod on seasonal changes in GnRH-1 secretion

@article{Dawson2015AnnualGC,
  title={Annual gonadal cycles in birds: Modeling the effects of photoperiod on seasonal changes in GnRH-1 secretion},
  author={A Dawson},
  journal={Frontiers in Neuroendocrinology},
  year={2015},
  volume={37},
  pages={52-64}
}
  • A. Dawson
  • Published 1 April 2015
  • Medicine, Biology
  • Frontiers in Neuroendocrinology
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Results clearly indicate that tree sparrows are capable of fine discrimination of photoperiodic information and use day length for GnRH-I expression to control their seasonal reproduction.
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Breeding Latitude and Annual Cycle Timing in a Songbird
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The hypothesis that migratory strategy and breeding latitude may predict differences in photoperiodic threshold for both migratory and reproductive timing is supported and contributes to the understanding of regulation of timing in annual cycles and improve predictions of how species might respond to changing environments.
Maternal photoperiodic programming enlightens the internal regulation of thyroid‐hormone deiodinases in tanycytes
TLDR
This review addresses MPP and discusses the latest findings on its impact on the thyrotrophin/deiodinase network, and a unifying scheme is suggested in which timing arises from a long‐term communication between the pars tuberalis and the hypothalamus and resultant spontaneous changes in local thyroid hormone status, independently of the pineal melatonin signal.
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