Cooperative breeding and monogamy in mammalian societies
Cooperative breeding and monogamy in mammalian societies
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DOI：
10.1098/rspb.2011.2468
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发表时间：
2012-06-07
影响因子：
4.7
通讯作者：
Clutton-Brock, Tim
中科院分区：
文献类型：
--
作者：
Lukas, Dieter;Clutton-Brock, Tim
对社会性昆虫和鸟类的比较研究表明，合作和真社会性繁殖系统的进化仅限于雌性完全或几乎完全与单一雄性交配的物种，这表明群体成员之间的高水平平均亲属关系是生殖利他主义进化所必需的。在本文中，我们表明，在哺乳动物中，合作繁殖的进化一直局限于社会一夫一妻制的物种，目前占所有哺乳动物物种的5%。由于额外的对父权是相对罕见的社会一夫一妻制和合作繁殖的哺乳动物，我们的分析支持的建议，高水平的群体成员之间的平均亲属关系发挥了重要作用，在非人类的哺乳动物，以及在鸟类和昆虫的合作繁殖的进化。
Comparative studies of social insects and birds show that the evolution of cooperative and eusocial breeding systems has been confined to species where females mate completely or almost exclusively with a single male, indicating that high levels of average kinship between group members are necessary for the evolution of reproductive altruism. In this paper, we show that in mammals, the evolution of cooperative breeding has been restricted to socially monogamous species which currently represent 5 per cent of all mammalian species. Since extra-pair paternity is relatively uncommon in socially monogamous and cooperatively breeding mammals, our analyses support the suggestion that high levels of average kinship between group members have played an important role in the evolution of cooperative breeding in non-human mammals, as well as in birds and insects.