Infanticide and expulsion of females in a cooperative mammal
Infanticide and expulsion of females in a cooperative mammal
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DOI：
10.1098/rspb.1998.0573
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发表时间：
1998-12-07
影响因子：
4.7
通讯作者：
Skinner, JD
中科院分区：
文献类型：
--
作者：
Clutton-Brock, TH;Brotherton, PNM;Skinner, JD
在合作组的Suricata suricatta（Suricata suricatta），助手的性别协助繁殖成年人在捍卫和喂养幼崽，和生存上升，在较大的群体。尽管如此，处于优势地位的繁殖雌性在怀孕的后半段会将从属雌性驱逐出群体，显然是因为成年雌性有时会杀死自己的幼崽。一些被驱逐的雌性被允许在占主导地位的雌性的幼崽出生后不久重新加入群体，随后帮助抚养幼崽。女性佣工最初抵制驱逐，并一再试图返回其纳塔尔群体，这表明，它不太可能需要占主导地位的女性给予他们生殖让步，以保持他们在该集团。
In cooperative groups of suricates (Suricata suricatta), helpers of both sexes assist breeding adults in defending and feeding pups, and survival rises in larger groups. Despite this, dominant breeding females expel subordinate females from the group in the latter half of their (own) pregnancy, apparently because adult females sometimes kill their pups. Some of the females that have been expelled are allowed to rejoin the group soon after the dominant female's pups are born and subsequently assist in rearing the pups. Female helpers initially resist expulsion and repeatedly attempt to return to their natal group, indicating that it is unlikely that dominant females need to grant them reproductive concessions to retain them in the group.