PARENT OFFSPRING CONFLICT AND THE RECRUITMENT OF HELPERS AMONG BEE-EATERS
PARENT OFFSPRING CONFLICT AND THE RECRUITMENT OF HELPERS AMONG BEE-EATERS
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DOI：
10.1038/356331a0
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发表时间：
1992-03-26
期刊：
影响因子：
64.8
通讯作者：
WREGE, PH
中科院分区：
文献类型：
--
作者：
EMLEN, ST;WREGE, PH
在任何非克隆社会中，个体之间的遗传利益冲突都是可以预期的1-5。一个被充分研究的冲突形式是父母和他们的后代之间关于父母提供给后代的照顾的数量。在某些合作繁殖的物种中，父母（繁殖者）由他们的成年后代（助手）帮助养育后代，这可能会发生父母-后代冲突的一种非常不同的表现6-8。如果帮手对繁殖成功有足够大的影响，育种者将通过保留后代作为帮手而不是让他们自己繁殖来提高自己的包容性适应度。我们在这里报告说，年长的雄性白额蜂虎（通常是父亲）积极破坏他们儿子的繁殖尝试，这种骚扰经常导致儿子加入骚扰父亲的巢穴。计算健身成本和收益的各种参与者有助于澄清为什么父母从事这样的“招募”行为，为什么儿子经常不抵抗。
GENETIC conflicts of interest are to be expected between individuals in any non-clonal society 1-5. One well studied form of conflict is that between parents and their offspring over the amount of parental care provided to the offspring 3. A very different manifestation of parent-offspring conflict may occur in certain cooperatively breeding species in which parents (breeders) are assisted in the rearing of young by their grown offspring (helpers) 6-8. If helpers have a sufficiently large effect on reproductive success, breeders will enhance their own inclusive fitness more by retaining their offspring as helpers than by allowing them to reproduce on their own 4,5,9. We report here that older male white-fronted bee-eaters (typically fathers) actively disrupt the breeding attempts of their sons, and that such harassment frequently leads to the sons joining as helpers at the nest of the harassing father. Calculation of fitness costs and benefits to the various participants helps to clarify both why parents engage in such 'recruitment' behaviour and why sons frequently do not resist.