Nieuwenhuijsen K, de Neef K J, Slob A K
Hum Reprod. 1986 Apr;1(3):159-69. doi: 10.1093/oxfordjournals.humrep.a136373.
Sexual interactions were studied in a large, well-integrated group of stumptail macaques, continuously living together. Copulations with the highest-ranking male and with young males were equally distributed over the ovarian cycle. Copulations with other adults males also occurred during all cycle phases, but were most frequent peri-ovulatory. This was most distinct in conceptive cycles. Copulatory activity continued during early pregnancy, but was virtually absent during the middle and latter part of pregnancy and during lactation. Fluctuations in copulation frequency could be attributed to fluctuations in female attractivity (as measured by directed male masturbations), but not in proceptivity (spontaneous presents) or receptivity (acceptance ratios). However, hormonal influences on attractivity could be overruled by social factors. With regard to the expression of heterosexual behaviour, stumptail macaques seem to be less hormone-dependent than other primate species studied, both in the laboratory and under more natural circumstances.
在一大群高度融合、长期共同生活的短尾猕猴中对性行为进行了研究。与地位最高的雄性以及年轻雄性的交配在卵巢周期中分布均匀。与其他成年雄性的交配在所有周期阶段也会发生，但在排卵期前后最为频繁。这在受孕周期中最为明显。交配活动在怀孕早期持续存在，但在怀孕中期、后期以及哺乳期几乎不存在。交配频率的波动可归因于雌性吸引力的波动（通过雄性定向自慰来衡量），但与主动求偶（自发呈现）或接受能力（接受比例）无关。然而，社会因素可以推翻激素对吸引力的影响。关于异性性行为的表现，无论是在实验室还是在更自然的环境中，短尾猕猴似乎比其他已研究的灵长类物种对激素的依赖性更小。
