Food conditions, competitive regime, and female social relationships in Japanese macaques: within-population variation on Yakushima
Food conditions, competitive regime, and female social relationships in Japanese macaques: within-population variation on Yakushima
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DOI：
10.1007/s10329-007-0073-y
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发表时间：
2008-04
期刊：
影响因子：
1.7
通讯作者：
G. Hanya;M. Matsubara;S. Hayaishi;K. Zamma;Shin-ichi Yoshihiro;M. Kanaoka;S. Sugaya;Mieko Kiyono-
中科院分区：
文献类型：
--
作者：
G. Hanya;M. Matsubara;S. Hayaishi;K. Zamma;Shin-ichi Yoshihiro;M. Kanaoka;S. Sugaya;Mieko Kiyono-
比较了日本猕猴（Macaca fuscata）在不同海拔高度（1000 ~ 1200 m针叶林和0 ~ 200 m沿海林）的饲养条件、竞争机制和雌性社会关系。沿海森林的果实可得性较高。在两个栖息地之间的摄食过程中，一组内的激动相互作用频率没有一致的差异。与针叶林相比，沿海林引起了更强的群体间竞争，表现为更高的群体间相遇率和更高的攻击性与非攻击性相遇比例。在沿海森林中，大群体的出生率高于小群体，但在针叶林中没有差异。尽管在竞争体制中存在这些差异，但在雌性社会关系中没有观察到变化，例如在梳理时对特定个体的方向和注意力，优势等级的线性，反击以及在竞争相互作用中对幼崽亲属的支持。研究结果表明，日本猕猴的雌性社会关系是稳定的，不随环境的变化而变化。
Feeding conditions, competitive regime, and female social relationships of Japanese macaques (Macaca fuscata) on Yakushima were compared between the two habitats at two different altitudes (coniferous forest, 1,000–1,200 m and coastal forest, 0–200 m). Fruit availability was higher in the coastal forest. There was no consistent difference in the frequency of agonistic interactions within a group during feeding between the two habitats. The coastal forest evoked stronger inter-group contest competition compared to the coniferous forest as evidenced by a higher inter-group encounter rate and a higher proportion of aggressive encounters to non-aggressive ones. Birth rate was higher in larger groups compared to smaller ones in the coastal forest, but did not differ in the coniferous forest. In spite of these differences in competitive regime, no variation in female social relationships was observed, such as direction and concentration on particular individuals in grooming, linearity in dominance rank, counter-attack, and support of juvenile kin during agonistic interactions. The present results indicate that the female social relationships of Japanese macaques are robust and do not change according to changes in the current environment.