Fission-fusion dynamics in a wild group of Japanese macaques (Macaca fuscata) on Kinkazan Island caused by the repeated separation of an alpha male being followed by females.
Fission-fusion dynamics in a wild group of Japanese macaques (Macaca fuscata) on Kinkazan Island caused by the repeated separation of an alpha male being followed by females.
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金华山岛上一群野生日本猕猴（Macaca fuscata）的裂变-融合动态，是由于雄性首领与雌性的反复分离而造成的。
DOI：
10.1007/s10329-022-01011-2
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发表时间：
2022
期刊：
影响因子：
1.7
通讯作者：
Tsubasa Yamaguchi & Nobuko Kazahari
中科院分区：
文献类型：
--
作者：
Fukushima Hiroyuki;Nakauchi Daisuke;Kato Takumi;Kawaguchi Noriaki;Yanagida Takayuki;Tsubasa Yamaguchi & Nobuko Kazahari
群体的时空凝聚力是灵长类社会的基本要素。因此，必须澄清影响空间凝聚力和群体中个体成员随时间变化程度的因素，即裂变-融合动力学。在2019年的交配季节，金刚山岛的一个野生日本猕猴群体中的阿尔法雄性（TY）多次从群体中消失，我们观察到了它的运动引起的裂变-融合动力学。当泰离开这个群体或它的家园时，这个群体似乎已经分裂了，跟随他的雌性与泰有着最亲密的关系，或者是这些雌性的亲戚。尽管TY在交配后的季节从群体中消失，但这些裂变-融合动态只发生在交配季节，这可能是因为雌性在交配季节更需要保护免受其他雄性的攻击。这些结果表明，虽然罕见，裂变融合动力学的基础上，男性和女性之间的从属关系可以发生与阿尔法男性从组中分离。需要更多的研究，在其他人群中澄清的影响，群体男性的空间凝聚力的群体。
The spatiotemporal cohesion of a group is an essential element of primate society. It is thus important to clarify the factors that influence the extent of variation in spatial cohesion and individual membership in a group over time, known as fission–fusion dynamics. During the mating season of 2019, the alpha male (TY)in a wild group of Japanese macaques on Kinkazan Island repeatedly disappeared from the group, and we observed fission–fusion dynamics caused by his movement. The group seemed to have split whenTYleft the group or its home range, and females who followed him had the most affiliative relationships withTYor were the relatives of those females. AlthoughTYdisappeared from the group in the post-mating season, these fission–fusion dynamics only occurred during the mating season probably because females had a more substantial need for protection against aggression from the other males during the mating season. These results indicate that, although rare, fission–fusion dynamics based on affiliative relationships between males and females can occur with the separation of alpha males from the group. More studies in other populations are needed to clarify the influence of group males on the spatial cohesion of groups.