Behavioural and hormonal responses to predation in female chacma baboons (Papio hamadryas ursinus)
Behavioural and hormonal responses to predation in female chacma baboons (Papio hamadryas ursinus)
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DOI：
10.1098/rspb.2005.3378
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发表时间：
2006-03-22
影响因子：
4.7
通讯作者：
Cheney, DL
中科院分区：
文献类型：
--
作者：
Engh, AL;Beehner, JC;Cheney, DL
在人类中，丧亲之痛与糖皮质激素（GC）水平的增加有关，尽管这种增加可以通过社会支持来减轻。我们检查了自由放养的雌性狒狒的粪便GC水平和梳理行为，以确定类似的影响是否在非人类物种中也很明显。失去近亲的女性在其亲属死亡后的几周内，与前几周相比，GC水平显著增加，而对照组女性则没有这种增加。尽管雌性会把大部分的梳理精力集中在近亲身上，但失去近亲的雌性并没有减少梳理的频率和梳理伴侣的数量；相反，在亲戚去世后，梳理频率和梳理伴侣的数量都会增加。虽然近亲的死亡在短期内显然会带来压力，但雌性似乎会通过扩大和加强梳理网络来弥补这种损失。也许正因为如此，雌性的GC水平很快就回到了基线水平。即使有熟悉的同伴和其他亲属在场，当雌性失去特定的同伴时，它们也会经历压力反应，它们显然会通过扩大和加强社会关系来减轻压力。
In humans, bereavement is associated with an increase in glucocorticoid (GC) levels, though this increase can be mitigated by social support. We examined faecal GC levels and grooming behaviour of free-ranging female baboons to determine whether similar effects were also evident in a non-human species. Females who lost a close relative experienced a significant increase in GC levels in the weeks following their relative's death compared with the weeks before, whereas control females showed no such increase. Despite the fact that females concentrate much of their grooming on close kin, females who lost a close female relative did not experience a decrease in grooming rate and number of grooming partners; instead, both grooming rate and number of grooming partners increased after a relative's death. While the death of a close relative was clearly stressful over the short term, females appeared to compensate for this loss by broadening and strengthening their grooming networks. Perhaps as a result, females' GC levels soon returned to baseline. Even in the presence of familiar troop-mates and other relatives, females experienced a stress response when they lost specific companions, and they apparently sought to alleviate it by broadening and strengthening their social relationships.