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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Ranging behavior of Mahale chimpanzees: A 16 year study
Primates, Volume 54, No. 2, Year 2013
Notification
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Description
We have analyzed the ranging patterns of the Mimikire group (M group) of chimpanzees in the Mahale Mountains National Park, Tanzania. During 16 years, the chimpanzees moved over a total area of 25. 2 or 27. 4 km2, as estimated by the grid-cell or minimum convex polygon (MCP) methods, respectively. Annually, the M group used an average of 18. 4 km2, or approximately 70 %, of the total home-range area. The chimpanzees had used 80 % of their total home range after 5 years and 95 % after 11 years. M group chimpanzees were observed more than half of the time in areas that composed only 15 % of their total home range. Thus, they typically moved over limited areas, visiting other parts of their range only occasionally. On average, the chimpanzees used 7. 6 km2 (in MCP) per month. Mean monthly range size was smallest at the end of the rainy season and largest at the end of the dry season, but there was much variability from year to year. The chimpanzees used many of the same areas every year when Sabacomorensis fruits were abundant between August and January. In contrast, the chimpanzees used several different areas of their range in June. Here range overlap between years was relatively small. Over the 16 years of the study we found that the M group reduced their use of the northern part of their range and increased their frequency of visits to the eastern mountainous side of their home range. Changes in home-range size correlated positively with the number of adult females but not with the number of adult males. This finding does not support a prediction of the male-defended territory model proposed for some East African chimpanzee unit-groups. © 2012 Japan Monkey Centre and Springer Japan.
Authors & Co-Authors
Nakamura, Michio
Japan, Kyoto
Kyoto University
Corp, Nadia
United Kingdom, Keele
Keele University
Fujimoto, Mariko
Japan, Kyoto
Kyoto University
Fujita, Shiho
Japan, Kagoshima
Kagoshima University
Hanamura, Shunkichi
Japan, Kyoto
Kyoto University
Hayaki, Hitoshige
Japan, Kobe
Kobe Gakuin University
Hosaka, Kazuhiko
Japan, Kamakura
Kamakura Women's University
Huffman, Michael A.
Japan, Kyoto
Kyoto University
Inaba, Agumi
Japan, Inuyama
Japan Monkey Centre
Inoue, Eiji
Japan, Kyoto
Kyoto University
Itoh, Noriko
Japan, Kyoto
Kyoto University
Kutsukake, Kentaro
Japan, Hayama
The Graduate University for Advanced Studies
Kiyono-Fuse, Mieko
Japan, Kobe
Kobe University
Kooriyama, Takanori
Japan, Inuyama
Japan Monkey Centre
Marchant, Linda F.
United States, Oxford
Miami University
Matsumoto-Oda, Akiko
Japan, Nishihara
University of the Ryukyus
Matsusaka, Takahisa
Japan, Suita
Kansai University
McGrew, William C.
United Kingdom, Cambridge
University of Cambridge
Mitani, John C.
United States, Ann Arbor
University of Michigan, Ann Arbor
Nishie, Hitonaru
Japan, Kyoto
Kyoto University
Norikoshi, Koshi
Japan, Tokyo
Sophia University
Sakamaki, Tetsuya
Japan, Kyoto
Kyoto University
Shimada, Masaki
Japan, Uenohara
Teikyo University of Science
Turner, Linda A.
United States, Philadelphia
Frankford Hospital
Wakibara, James V.
Tanzania, Arusha
Tanzania National Parks
Zamma, Koichiro
Japan, Tamano
Great Ape Research Institute
Statistics
Citations: 41
Authors: 26
Affiliations: 18
Identifiers
Doi:
10.1007/s10329-012-0337-z
ISSN:
00328332
Study Locations
Tanzania
Participants Gender
Male
Female