PDF(Pubmed)
Abstract：
The Japanese macaque (Macaca fuscata) has become a key species for studying homosexual behavior over recent decades. With the non-conceptive nature, their same-sex consortships illustrate that individual partner preferences can exist beyond direct reproductive benefits or apparent sociosexual strategies. An open question is whether the behavior shared between partners in consortship directly affects their choice to remain with a partner. With this study, we examined behavioral aspects underlying consortship temporal patterns in these promiscuous and bisexual primates. While these patterns could be relevant in both homo- and heterosexual consortships, our study primarily focused on female-female pairs. We hypothesized that the stability of consortships (duration and occurrence) is influenced by a pair\'s sexual behavior, mutual sexual stimulation, and close affiliative inter-mount behaviors involving high-intensity body contact. A semi-free population of Japanese macaques was observed over one mating season. In total, 40 h of focal data on female-female consortship behaviors were analyzed. Forty-six percent of all sexually mature females engaged in homosexual interactions. Our behavioral analyses of female-female pairs found that close body contact, rather than grooming or sexual interactions, was correlated with the stability of homosexual consortships. The greater the amount of huddling and embracing a pair engaged in, the more likely they were to stay together and reunite again. However, the frequency of mounting, rubbing or thrusting had no discernable effect on consortship stability. The results of this study thus add important knowledge to partner qualities in promiscuous primates as well as to inter-group differences of homosexual behavior in Japanese macaques.
摘要：
近几十年来，日本猕猴（Macacafuscata）已成为研究同性恋行为的关键物种。具有非概念性，他们的同性配偶关系表明，个体伴侣的偏好可以存在于直接的生殖利益或明显的社会性策略之外。一个悬而未决的问题是，合作伙伴之间的共同行为是否直接影响他们与合作伙伴在一起的选择。通过这项研究,我们研究了这些滥交和双性灵长类动物中潜在的交配时间模式的行为方面。虽然这些模式可能与同性恋和异性恋聚居有关，我们的研究主要集中在女性对。我们假设配偶的稳定性（持续时间和发生）受一对的性行为的影响，相互性刺激,以及涉及高强度身体接触的紧密关联行为。在一个交配季节观察到半自由的日本猕猴种群。总的来说,分析了40小时的女性-女性配偶行为的局灶性数据。46％的性成熟女性从事同性恋互动。我们对女性-女性对的行为分析发现，身体密切接触，而不是修饰或性行为，与同性恋群体的稳定性相关。参与的一对拥挤和拥抱的数量越多，他们就越有可能在一起再次团聚。然而,安装的频率，摩擦或推力对种群稳定性没有明显影响。因此，这项研究的结果为滥交灵长类动物的伴侣素质以及日本猕猴的同性恋行为的群体间差异增加了重要知识。
