Sex differences in kin bias at maturation: Male rhesus macaques prefer paternal kin prior to natal dispersal.
Sex differences in kin bias at maturation: Male rhesus macaques prefer paternal kin prior to natal dispersal.
复制标题
成熟时亲属偏向的性别差异：雄性恒河猴在出生时分散之前更喜欢父系亲属。
DOI：
10.1002/ajp.22401
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发表时间：
2016
影响因子：
2.4
通讯作者：
Kulik,Lars
中科院分区：
文献类型：
--
作者：
Widdig,Anja;Langos,Doreen;Kulik,Lars
众所周知，分散和交配模式会影响社会群体中母系和父系亲属的可获得性，并对社会性的演变产生重要影响。人们通常认为，与分散的性行为相比，人性化形成了更强的社会纽带，这可能是因为离异后分散的性行为的亲属可获得性减少。然而，很少有灵长类研究直接比较关联模式中的性别差异，特别是在亲属关系应该相同的情况下，在扩散之前就已经存在的性别差异。在这里，我们比较了雌性博爱物种恒河猴(Macaca Mulatta)的从属和攻击性互动，以测试是否在成熟年龄左右就已经出现了亲属偏见的性别差异，当时两性仍然与出生群体中的亲属生活在一起。我们的数据证实，在男性迁徙之前，两种性别的亲属可获得性是相同的。相似的亲属可获得性部分反映在可比较的关联模式上，因为女性和男性都优先与母系亲属互动。然而，女性与母系亲属的联系比同龄男性更强，这表明亲属关系不仅取决于亲属的可获得性，而且还具有性别特异性。同样，与女性相比，男性比女性更容易与父系亲属建立联系，这表明男性在生活中比女性更早地区分父系亲属和非亲属。男性可能比女性更需要与父系亲属建立联系，这是因为在分散之前母系家庭的融合减少，以及与父亲相关的同龄人的高度可获得性，男性可能会与这些同龄人一起迁徙。相比之下，女性与母系亲属形成了更强的联系，这可能会提高她们后代的存活率。需要进行更多的比较研究，以了解不同的分散制度对亲属关系模式的影响。上午好。J.Primatol。2016年78：78-91。©2016 Wiley期刊，Inc.
Dispersal and mating patterns are known to affect the availability of both maternal and paternal kin within social groups, with important effects on the evolution of sociality. It is generally assumed that the philopatric sex forms stronger social bonds than the dispersing sex, possibly as a result of reduced kin availability for the dispersing sex after departure. However, few primate studies have directly compared whether sex differences in association patterns, particular with kin, are already present prior to dispersal when kin availability should be the same for both sexes. Here, we compared affiliative and aggressive interactions in a female philopatric species, the rhesus macaque (Macaca mulatta), to test whether sex differences in kin bias already occur around the age of maturation, when both sexes still live together with kin in their natal group. Our data confirmed that kin availability was the same for both sexes prior to male dispersal. Similar kin availability was partially reflected by comparable association patterns, as both females and males preferentially interacted with maternal kin. However, females had stronger affiliative bonds with maternal kin than males of the same age, indicating that kin associations not only depended upon kin availability, but were also sex‐specific. Similarly, males were significantly more likely to affiliate with paternal kin than non‐kin, as compared to females, suggesting that males discriminated paternal kin from non‐kin earlier in life than females. Males might have a stronger need than females to affiliate with paternal kin due to a reduced integration in the matrilineal family prior to dispersal and the high availability of paternally related age‐peers, with whom males could potentially migrate. Females, in contrast, form stronger affiliations with maternal kin, which may enhance their offspring's survival. More comparative studies are needed to understand the impact of different dispersal regimes on patterns of kin associations. Am. J. Primatol. 78:78–91, 2016. © 2016 Wiley Periodicals, Inc.