Struhsaker T T
Z Tierpsychol. 1977 Sep;45(1):75-84. doi: 10.1111/j.1439-0310.1977.tb01009.x.
The redtail monkeys of the Kibale Forest, W. Uganda, live in social groups of about 35 members with only one adult male. In one of the study groups the harem male was replaced by a new male from outside the group. This male-replacement was followed by the new male killing and eating two newborn infants in the group. Infants and young juveniles older than one month were not attacked. Following the infanticide the new male copulated with several adult females in the group. 8 months after this male joined the group, 5 other adult and subadult males associated with it. This multimale influx was accompanied by frequent and intense aggression among the males. Comparisons are made with the studies of langurs in India and Ceylon and it is suggested that infanticide following male-replacement in the harem affords reproductive advantages to the new male.
乌干达西部基巴莱森林的赤尾猴生活在约35只成员的社会群体中，只有一只成年雄性。在其中一个研究群体中，后宫雄性被来自群体外的一只新雄性取代。这只新雄性取代后，杀死并吃掉了群体中的两只新生婴儿。一个月以上的婴儿和幼年猴未受到攻击。杀婴事件发生后，这只新雄性与群体中的几只成年雌性交配。这只雄性加入群体8个月后，又有5只成年和亚成年雄性与之关联。这种多雄性涌入伴随着雄性之间频繁而激烈的攻击行为。文中将其与印度和锡兰叶猴的研究进行了比较，并指出后宫中雄性取代后发生的杀婴行为为新雄性提供了繁殖优势。
