Parental care of the common tern sterna hirundo
Parental care of the common tern sterna hirundo
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普通燕鸥 sterna hirundo 的父母照顾
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
R. Morris
中科院分区：
文献类型：
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作者：
D. Wiggins;R. Morris
父母照顾活动的男性和女性共同燕鸥胸hirundo记录了两个繁殖季节。雄性和雌性在整个繁殖回合中表现出不同的父母角色。求偶喂养的男性是广泛的产卵之前和期间，但随着孵化的开始下降。女性进行显着更多的孵化行为比男性，虽然两性花同样的时间出席在巢址。在小鸡阶段，女性花更多的时间在领土上比男性。小鸡的喂养主要是男性的责任;男性喂养小鸡的速度大约是女性的三倍。此外，而女性交付给小鸡的鱼的大小相对于小鸡的年龄没有趋势，由男性交付的鱼的大小随小鸡的年龄增加。求偶喂养活动和广泛的小鸡喂养的贡献，男性常见的燕鸥似乎超过父母的贡献，女性，相反的预测一夫一妻制的物种。
Parental care activities of male and female Common Terns Sterna hirundo were recorded over two breeding seasons. Males and females exhibited distinct parental roles throughout a breeding bout. Courtship feeding by males was extensive prior to and during egg-laying, but declined with the onset of incubation. Females performed significantly more incubation behaviour than males although both sexes spent equal time attending at the nest site. During the chick stage, females spent significantly more time on the territory than did males. Chick feeding was largely the responsibility of the male; males fed chicks at a rate approximately three times higher than that of females. In addition, whereas females showed no trend in the size of fish delivered to chicks relative to chick age, the size of fish delivered by males increased with chick age. Courtship feeding activities and extensive chick feeding contributions by male Common Terns appear to outweigh parental contributions by females, contrary to predictions for a monogamous species.