Elevated corticosterone during egg production elicits increased maternal investment and promotes nestling growth in a wild songbird
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- 作者：E. Keith Bowers ; ekbowers@ilstu.edu" class="auth_mail" title="E-mail the corresponding author ; Rachel M. Bowden ; Charles F. Thompson ; Scott K. Sakaluk
- 关键词：Begging ; Egg ; Glucocorticoid ; House wren ; Life history ; Maternal effect
- 刊名：Hormones and Behavior
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：83
- 期：Complete
- 页码：6-13
- 全文大小：720 K
文摘
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We non-invasively manipulated maternal deposition of glucocorticoids into eggs.
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Elevated glucocorticoids increased the number of eggs laid by free-living females.
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Feeding females corticosterone increased the concentration of this steroid in eggs.
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Elevated glucocorticoids increased the amount of yolk allocated to eggs.
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Elevated in ovo corticosterone enhanced offspring begging for food after hatching.