Keeping it regular: Development of thermoregulation in four tropical seabird species
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- 作者：Lorinda A. Hart ; Colleen T. Downs ; downs@ukzn.ac.za ; Mark Brown
- 关键词：Body temperature ; Chick development ; Chick colour ; Feather development ; Nest microhabitat ; Seabird ; Thermoregulation
- 刊名：Journal of Thermal Biology
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：64
- 期：Complete
- 页码：19-25
- 全文大小：352 K
- 卷排序：64
文摘
Development of homeothermy in avian chicks is influenced by numerous factors. Generally altricial chicks develop this post-hatching. We investigated the development of thermoregulation of four co-occurring seabird species in the Seychelles. Initial body temperature (Tbs) of all chicks, except fairy terns were lower than those taken when chicks were older. Brooding cessation generally coincided with feather development, as did an increase in Tb. Mean chick Tb was significantly lower than mean adult Tb for all species. We show that tropical seabird species have a more delayed onset of thermoregulatory capabilities.