Effects of natal male alliances on aggression and power dynamics in rhesus macaques.
Effects of natal male alliances on aggression and power dynamics in rhesus macaques.
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DOI：
10.1002/ajp.20907
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发表时间：
2011-08
影响因子：
2.4
通讯作者：
McCowan, B.
中科院分区：
文献类型：
--
作者：
Beisner, B. A.;Jackson, M. E.;Cameron, A.;McCowan, B.
在野外，雄性恒河猴在性成熟时就会分散。然而，在圈养中，雄性无法脱离其出生群体。因此，圈养恒河猴社会群体中出生雄性的存在是不自然的，并且有可能对群体动态和稳定性产生负面影响。出生男性和非出生（移民）男性之间的主要区别在于，出生男性有机会与母系亲属和非亲属形成长期联盟。我们研究了与出生男性的亲属联盟相关的因素以及这些联盟对出生男性行为、群体动态和群体稳定性的影响。我们发现，当出生的男性来自高级母系、有更多兄弟姐妹且年龄较小时，他们更频繁地与母系亲属结成联盟。更频繁的亲属联盟与更频繁地使用强烈的攻击性、更高的个人等级以及在男性流离失所网络中更高的整合程度相关。因此，出生的男性似乎利用他们的联盟在社会群体中变得更加活跃和有影响力，这可能会影响群体的稳定性。看来，来自高级母系的幼年雄性对群体稳定性的影响尤其最大。来自高等级母系的年轻雄性出生时比年长或低等级雄性更频繁地与亲属结成联盟，并且更频繁地使用强烈的攻击性。此外，来自高级母系的幼年雄性比例较高的群体受伤率也较高。我们认为，恒河猴群体中出生雄性的存在可能不利于群体稳定。
In the wild, male rhesus macaques disperse at sexual maturity. In captivity, however, males cannot disperse from their natal groups. Thus, the presence of natal males in captive rhesus social groups is unnatural and has the potential to negatively influence group dynamics and stability. A primary difference between natal males and non-natal (immigrant) males is that natal males have the opportunity to form long-term alliances with their maternal kin as well as nonkin. We investigated the factors associated with natal males’ kin alliances and the impact of these alliances on measures of natal male behavior, group dynamics, and group stability. We found that natal males more frequently formed alliances with maternal kin when they were from high-ranking matrilines, had more siblings, and were younger. More frequent kin alliances was associated with more frequent use of intense aggression, higher individual rank, and higher degree of integration within the male displacement network. Thus, it seems that natal males use their alliances to be more active and influential in the social group, which may affect group stability. It appears that juvenile natal males from high-ranking matrilines, in particular, have the largest impact on group stability. Younger natal males from high-ranking matrilines formed alliances with kin more frequently and used intense aggression more frequently than older or lower-ranking males. Furthermore, groups with a higher proportion of juvenile males from high-ranking matrilines also had higher rates of wounding. We suggest that the presence of natal males in rhesus groups may act in opposition to group stability.
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影响因子：
2.5
作者：
PACKER, C
通讯作者：
PACKER, C
影响因子：
1.7
作者：
Hill, DA
通讯作者：
Hill, DA
影响因子：
2.4
作者：
Fairbanks, LA;Jorgensen, MJ;Mann, JJ
通讯作者：
Mann, JJ
影响因子：
4.4
作者：
BONACICH, P
通讯作者：
BONACICH, P
影响因子：
1.3
作者：
HILL, DA;OKAYASU, N
通讯作者：
OKAYASU, N