<総説>ニホンザルの群れの「同心円二重構造モデル」再考

概要

論文の詳細を見る
Itani proposed "Double Concentric Circle Structure Model" in 1954 on the basis of the observation of the artificially provisioned Japanese macaques in Takasakiyama. This model says that adult females, their offsprings, and high-ranking males occupy the central part of the troop while low-ranking males occupy the peripheral part. Later, some primatologists criticized that such a spatial distribution of the troop members resulted from monopolistic use of the localized foods in the provisioning site by the high-ranking individuals and that "Double Concentric Circle Structure Model" was not applicable to the wild troop of the monkeys, which subsisted on dispersed foods. In this paper, the applicability of this model to the wild Japanese macaques is reconsidered from the socioecological point of view. In conclusion, it is suggested that even the wild troops shows "Double Concentric Circle Structure" when foods localized in a small patch.
2000-03-31