Abstract：
Although chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) share a multi-male/multi-female societal organization and form male-philopatric groups, disparities in terms of male aggression and stability of temporary parties are thought to exist among them. However, existing research in bonobos has mainly focused on the high social status, prolonged receptivity, and characteristic sexual behaviors of females, leaving the behaviors of males understudied. Moreover, prior comparative studies on Pan suffer from methodological inconsistencies. This study addresses these gaps by employing a uniform observation method to explore party attendance and aggressive interactions among male bonobos in Wamba and male chimpanzees in Kalinzu. Unlike male chimpanzees, which exhibit dispersion in the absence of receptive females in the group, male bonobos showed a lesser degree of such dispersion. Although the overall frequency of aggressive interactions per observation unit did not significantly differ between the two species, the nature of these interactions varied. Notably, severe aggressive behaviors such as physical confrontations among adult males were absent in bonobos, with most aggression occurring between the sons of the two highest-ranking females. Additionally, in bonobos, females actively engaged in polyadic aggressive behavior as aggressors, while all instances of coalitionary aggression in chimpanzees originated from male aggressors. These findings underscore the substantial impact of female behaviors on the observed distinctions in male aggressive interactions between the two species.
摘要：
尽管黑猩猩（Panroglodytes）和黑猩猩（Panpaniscus）共享多男性/多女性的社会组织并形成男性-哲学群体，他们之间存在男性侵略和临时政党稳定方面的差异。然而,黑猩猩的现有研究主要集中在较高的社会地位上，延长的接受性，以及女性特有的性行为,对男性的行为研究不足。此外，先前对Pan的比较研究存在方法论上的不一致。这项研究通过采用统一的观察方法来探索Wamba的雄性黑猩猩和Kalinzu的雄性黑猩猩之间的聚会出勤和侵略性互动，从而解决了这些差距。不像雄性黑猩猩,在群体中没有接受雌性的情况下表现出分散，雄性黑猩猩表现出较小程度的这种分散。尽管每个观测单位的侵袭性相互作用的总体频率在两个物种之间没有显着差异，这些相互作用的性质各不相同。值得注意的是,侏儒中没有成年男性的严重攻击行为，如身体对抗，最侵略发生在两个最高级别的女性的儿子之间。此外,在黑猩猩身上,女性作为侵略者积极从事多学科的攻击行为，而黑猩猩的所有联合侵略都源于男性侵略者。这些发现强调了女性行为对观察到的两个物种之间男性攻击性相互作用的差异的重大影响。
