FEMALE TRANSFER AND INBREEDING AVOIDANCE IN SOCIAL MAMMALS
FEMALE TRANSFER AND INBREEDING AVOIDANCE IN SOCIAL MAMMALS
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DOI：
10.1038/337070a0
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发表时间：
1989-01-05
期刊：
影响因子：
64.8
通讯作者：
CLUTTONBROCK, TH
中科院分区：
文献类型：
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作者：
CLUTTONBROCK, TH
在大多数社会性哺乳动物中，雄性会离开其出生群体到其他群体中繁殖，而雌性通常一生都留在同一群体中。然而，在少数物种中，雌性通常在青春期在群体之间转移。性别差异在传播中的功能意义及其与避免近亲繁殖的联系（如果有的话）存在争议2-7。在这里，我表明，在一夫多妻制哺乳动物中，雌性通常留在其出生群体中繁殖，thdr 首次受孕的平均年龄通常超过成年雄性在繁殖群体中的平均居住时间。相比之下，当雌性通常转移到其他群体中繁殖时，繁殖雄性或居住的雄性亲属群体的平均居住地通常超过雌性首次受孕时的平均年龄。这些结果支持这样的观点，即雌性哺乳动物通常会进行转移以避免与其父亲或其他近亲近亲繁殖，尽管雌性扩散也可能因其他原因而发生8,9。
In most social mammals, males leave their natal group to breed in other groups whereas females commonly remain in the same group throughout their lives1. In a few species however, females usually transfer between groups during adolescence1. The functional significance of sex differences in dispersal and their connection, if any, to the avoidance of inbreeding is disputed2–7. Here I show that in polygynous mammals where females commonly remain to breed in their natal group, thdr average age at first conception typically exceeds the average period of residence of adult males in breeding groups. In contrast, where females usually transfer to breed in other groups, the average residence of breeding males or of resident male kin groups typically exceeds the average age of females at first conception. These results support the suggestion that female mammals commonly transfer to avoid inbreeding with their father or other close relatives, although female dispersal may also occur for other reasons8,9.