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Title: Ranging behavior of Mahale chimpanzees: a 16 year study.
Authors: Nakamura, Michio  kyouindb  KAKEN_id
Corp, Nadia
Fujimoto, Mariko
Fujita, Shiho
Hanamura, Shunkichi
Hayaki, Hitoshige
Hosaka, Kazuhiko
Huffman, Michael A
Inaba, Agumi
Inoue, Eiji  KAKEN_id
Itoh, Noriko
Kutsukake, Nobuyuki
Kiyono-Fuse, Mieko
Kooriyama, Takanori
Marchant, Linda F
Matsumoto-Oda, Akiko
Matsusaka, Takahisa
McGrew, William C
Mitani, John C
Nishie, Hitonaru
Norikoshi, Koshi
Sakamaki, Tetsuya  kyouindb  KAKEN_id
Shimada, Masaki
Turner, Linda A
Wakibara, James V
Zamma, Koichiro
Author's alias: 中村, 美知夫
Issue Date: Apr-2013
Publisher: Springer Japan
Journal title: Primates
Volume: 54
Issue: 2
Start page: 171
End page: 182
Abstract: 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 km(2), as estimated by the grid-cell or minimum convex polygon (MCP) methods, respectively. Annually, the M group used an average of 18.4 km(2), 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 km(2) (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 Saba comorensis 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.
Rights: The final publication is available at link.springer.com
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
URI: http://hdl.handle.net/2433/173328
DOI(Published Version): 10.1007/s10329-012-0337-z
PubMed ID: 23239417
Appears in Collections:Journal Articles

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