Mating by nontroop males among the Japanese macaques of Yakushima Island
Mating by nontroop males among the Japanese macaques of Yakushima Island
复制标题
屋久岛日本猕猴中非部队雄性的交配
DOI:
10.1159/000156577
复制
发表时间:
1991
影响因子:
1.9
通讯作者:
D. Sprague
中科院分区:
文献类型:
--
作者:
D. Sprague
Nontroop male Mating strategy Male influx Mating seasonality Dominance Japanese macaque Macaca fuscata yakui Yakushima David S. Sprague, Laboratory of Human Evolution Studies Faculty of Science, Kyoto University Sakyo, Kyoto 606 (Japan) Introduction The mating strategy of male cercopithe-cine monkeys has been described as a form of’female defense polygyny’ [1]. Such characterizations of male mating strategy generally assume that males mate within a troop of which they are members. This assumption is important for many theories concerned with the role of dominance in mating or with the number of males living in a troop. For example, the resident male of a one-male troop is expected to maintain exclusive access to the females of a troop [1], while in multimale groups the subordinate males are expected to live in the group only if the dominant males cannot exclude them from mating [1,2]. However, many researchers have reported influxes of nontroop males during the mating season for Old World monkey species with both one-male and multimale group structures {Macaca fuscata [3], M. mu-latta [4], Presbytis entellus [5], Cercopithecus mitis stuhlmanni [6], C. mitis albogularis [7], C. ascanius [8], Erythrocebus patas [9]). Many of these intruding males copulate successfully. These observations call into question current assumptions about the relationship between mating success and male troop membership. Yamagiwa [3] has reported that nontroop males often succeeded in mating among the Japanese macaques (Macaca fuscata yakui) of Yakushima Island. This paper reports further research on mating by nontroop males in the Yakushima study site, showing that nontroop males accounted for a large proportion of the mating in this population. Field Site and Methods The study site is located on the northwestern coast of Yakushima Island within the KirishimaYaku National Park, Kagoshima Prefecture, Japan. The study troops live in continuous, largely undisturbed forest and are surrounded by many other troops. At the time this study began in 1984, three troops had been habitMating by Nontroop Males 157