A5051487347- Primate Behavior and Ecology
- Animal Behavior and Reproduction
- Animal Vocal Communication and Behavior
- Evolutionary Psychology and Human Behavior
- Amphibian and Reptile Biology
- Wildlife Ecology and Conservation
- Demographic Trends and Gender Preferences
- Child and Animal Learning Development
- Human-Animal Interaction Studies
- Japanese History and Culture
- Neuroendocrine regulation and behavior
- Plant and animal studies
- Genetic diversity and population structure
- Metabolism and Genetic Disorders
- Marine and coastal plant biology
- Ecology and Vegetation Dynamics Studies
- Diet and metabolism studies
- Social and Intergroup Psychology
- Marine Biology and Ecology Research
- Nitrogen and Sulfur Effects on Brassica
- Global Maternal and Child Health
- Behavioral Health and Interventions
- Language and cultural evolution
- Bat Biology and Ecology Studies
- Isotope Analysis in Ecology
Kwansei Gakuin University
2010-2024
Kyushu University
2011
Kyoto University
1980-2010
Naruto University of Education
1994-1995
The University of Tokyo
1985
Tanzania Wildlife Research Institute
1985
Abstract and Summary A unit‐group (K‐group) of chimpanzees has shown a drastic demographic change in the course 17 years (1966–1983) field study. K‐group had 6 adult males 1966. Initially, group lost one by between 1969–1975. The number was main factor influencing immigration strange, cycling females emigration females, although nulliparous born into regularly emigrated to other unit‐groups, regardless within K‐group. When dropped only two early 1978, many began associate with larger...
On 5 July 1983, the adult male chimpanzees of M group killed and ate a newborn infant in Mahale National Park, Western Tanzania. The is believed to have been sired by one males. Intergroup infanticide might result improving reproductive success eliminating future competitor. In present episode, however, there fair possibility that males fostered erroneous idea had another because its mother disappeared from for several months before parturition. After infanticide, social relationship between...
Abstract The sexual behavior of the Japanese monkeys Arashiyama B troop was studied in two mating seasons. Rank order adult males (10 years old or over) had no positive correlation with activity. High-ranking did not always attain high reproductive success. Some correlations were found between age, rank, and mating-partner selection. male-female dyads showed remarkable long-term proximity. kind psychological peculiarity is postulated within these dyads; although they unrelated, most them...
Abstract We compared food availability and group density of Japanese macaques in Yakushima, southern Japan, among primary forest two habitats that had been disturbed by logging different regeneration histories. The study was conducted an undisturbed national park, logged 7–18 years ago later naturally regenerated, 19–27 planted with cedar ( Cryptomeria japonica ) trees. plantation primarily composed large trees at low stand density, while the regenerated many small total basal area number...
Abstract A wild Japanese macaque troop decreased in size because the birth rate dropped and infant mortality increased. In 1989 mating season, last male left troop, remaining two females joined a neighboring troop. Thus, ceased to exist as an independent lower limit may exist, below which cannot effectively defend its range, forcing join larger © 1994 Wiley‐Liss, Inc.
We devised a new method to estimate the density of primate groups in habitats that preclude use line-transect census because ground is too steep. combined point and group follows. From number counted at fixed for an hour, n, D was calculated: = lambda n / pi. Lambda, detectability constant, constant when distance-dependent g(y) regressed on half-normal model: e (-lambda y(2)) can be estimated by combining information follow census. Using this method, we Japanese macaques Yakushima. A area 7...