Vol. 39 No. 3, July 1998

Japanese Macaques in Natural Habitats: Comparative Studies in Kinkazan and Yakushima

Yamagiwa, Juichi; Izawa, Kosei; Maruhashi, Tamaki: Long-term Studies on Wild Japanese Macaques in Natural Habitats at Kinkazan and Yakushima: Preface..........255

Yamagiwa, Juichi; Hill, David A.: Intraspecific Variation in the Social Organization of Japanese Macaques: Past and Present Scope of Field Studies in Natural Habitats..........257

Agetsuma, Naoki; Nakagawa, Naofumi: Effects of Habitat Differences on Feeding Behaviors of Japanese Monkeys: Comparison Between Yakushima and Kinkazan..........275 Key Words: Japanese monkey; Habitat difference; Food quality; Diet composition; Activity budget; Foraging strategies.

Maruhashi, Tamaki; Saito, Chiemi; Agetsuma, Naoki: Home Range Structure and Inter-group Competition for Land of Japanese Macaques in Evergreen and Deciduous Forests..........291 Key Words: Japanese macaques; Home range structure; Inter-group competition; Habitat quality.

Saito, Chiemi; Sato, Shizue; Suzuki, Shigeru; Sugiura, Hideki; Agetsuma, Naoki; Takahata, Yukio; Sasaki, Chisato; Takahashi, Hiroyuki; Tanaka, Toshiaki; Yamagiwa, Juichi: Aggressive Intergroup Encounters in Two Populations of Japanese Macaques (Macaca fuscata)..........303 Key Words: Macaca fuscata ; Intergroup encounter; Food comptition; Mating competition; Resource defense.

Suzuki, Shigeru; Noma, Naohiko; Izawa, Kosei: Inter-annual Variation of Reproductive Parameters and Fruit Availability in Two Populations of Japanese Macaques..........313 Key Words: Macaca fuscata ; Reproduction; Birth rate; Habitat quality; Inter-annual variation; Intertroop competition.

Yumoto, Takakazu; Noma, Naohiko; Maruhashi, Tamaki: Cheek-pouch Dispersal of Seeds by Japanese Monkeys (Macaca fuscata yakui) on Yakushima Island, Japan..........325 Key Words: Cheek-pouch; Macaca fuscata yakui ; Seed predation; Warm temperate forest; Yakushima Island.

Takahata, Yukio; Suzuki, Shigeru; Agetsuma, Naoki; Okayasu, Naobi; Sugiura, Hideki; Takahashi, Hiroyuki; Yamagiwa, Juichi; Izawa, Kosei; Furuichi, Takeshi; Hill, David A.; Maruhashi, Tamaki; Saito, Chiemi; Sato, Shizue; Sprague, David S.: Reproduction of Wild Japanese Macaque Females of Yakushima and Kinkazan Islands: A Preliminary Report..........339 Key Words: Macaca fuscata fuscata ; M.f.yakui ; Birth rate; Interbirth interval; Infant mortality; Survival curve.

Sprague, David S.; Suzuki, Shigeru; Takahashi, Hiroyuki; Sato, Shizue: Male Life History in Natural Populations of Japanese Macaques: Migration, Dominance Rank, and Troop Participation of Males in Two Habitats...........351 Key Words: Male life history; Mating strategy; Dominance rank; Migration; Macaca fuscata.

Takahashi, Hiroyuki; Furuichi, Takeshi: Comparative Study of Grooming Relationships among Wild Japanese Macaques in Kinkazan A Troop and Yakushima M Troop..........365 Key Words: Macaca fuscata ; Grooming relationship; Socionomic sex ratio; Troop size; Non-provisioning.

Nakagawa, Naofumi: Ecological Determinants of the Behavior and Social Structure of Japanese Monkeys: A Synthesis..........375 Key Words: Group size; Feeding competition; Mating competition; Affiliative behavior; Japanese monkeys.

Book Reviews..........385