Institute for Primate Studies and Department of Psychology, University of Oklahoma.
Am J Primatol. 1982;3(1-4):77-88. doi: 10.1002/ajp.1350030107.
Sexual behavior was observed in fifteen female and seven male captive adult chimpanzees over a period of three months. Relative frequencies of successful and unsuccessful copulatory attempts were compared to levels of anogenital swelling and reproductive status. In addition, the data were analyzed in relation to three indicators of female primate sexuality: (1) proceptivity, indicated by female attempts at sexual interaction; (2) attractivity, indicated by male-initiated attempts; and (3) receptivity, evident when a female responds positively to male initiation. The data suggest that increased level of anogenital swelling enhanced female proceptivity and attractivity, but not receptivity. Comparison of cycling vs pregnant females revealed that attractivity and receptivity increased during pregnancy, while proceptivity was relatively unchanged. The total success rate (copulations/attempts) was 63.3% (42% for female-initiated attempts and 77% for male-initiated attempts). Pregnant females copulated at a high rate, almost double that of cycling females. Sexual activity during pregnancy and the occurrence of anogenital swelling during pregnancy are discussed in terms of female reproductive strategies.
在三个月的时间里，研究人员观察了 15 只雌性和 7 只雄性圈养成年黑猩猩的性行为。研究人员将成功和不成功的交配尝试的相对频率与肛门生殖器肿胀程度和生殖状态进行了比较。此外，还根据雌性灵长类动物性行为的三个指标分析了这些数据：（1）受动性，由雌性尝试性的性互动表示；（2）吸引力，由雄性发起的尝试表示；（3）接受性，当雌性对雄性的发起做出积极反应时表现出来。数据表明，肛门生殖器肿胀程度的增加增强了雌性的受动性和吸引力，但没有增强接受性。对发情期和怀孕期雌性的比较表明，发情期和怀孕期雌性的吸引力和接受性增加，而受动性相对不变。总成功率（交配/尝试）为 63.3%（女性发起的尝试为 42%，男性发起的尝试为 77%）。怀孕的雌性交配率很高，几乎是发情期雌性的两倍。本文还讨论了怀孕期间的性活动和怀孕期间肛门生殖器肿胀的发生，以探讨雌性的生殖策略。
