Group size and structure in western lowland gorillas (Gorilla gorilla gorilla) at Mbeli Bai, Republic of Congo
Group size and structure in western lowland gorillas (Gorilla gorilla gorilla) at Mbeli Bai, Republic of Congo
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DOI：
10.1002/ajp.1074
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发表时间：
2002-04-01
影响因子：
2.4
通讯作者：
Parnell, RJ
中科院分区：
文献类型：
--
作者：
Parnell, RJ
这篇文章描述了造访刚果北方沼泽森林空地Mbeli Bai的西部低地大猩猩群体的大小和结构。在空地边缘的一个观察平台被使用了3年，大猩猩的可见时间为1,681小时。平均群体大小（不包括孤独的男性）为8.4 +/- SD 4.3，与大多数其他大猩猩研究没有显着差异。在Mbeli的所有群体只包含一个完全成熟的男性，并没有表现出分裂融合或定期分组的证据。所有留在种群中的移民男性都变得孤独，没有观察到“单身汉”群体。提出了方法问题，包括多男性群体的分类，并根据姆贝利的结果讨论了其他人口的人口概况。(C)2002 Wiley-Liss，Inc.
This paper describes the size and structure of western lowland gorilla groups visiting Mbeli Bai, a swampy forest clearing in northern Congo. An observation platform at the edge of the clearing was used over a 3-yr period, with gorillas visible for 1,681 hr. Data are presented on 14 groups and seven solitary males. Mean group size (excluding solitary males) was 8.4 +/- SD 4.3, and did not differ significantly from most other gorilla studies. All groups at Mbeli contained only one fully mature male and did not show evidence of fission-fusion or regular subgrouping. All emigrating males that remained in the population became solitary, and "bachelor" groups were not observed. Methodological issues are raised, including the classification of multi-male groups, and the demographic profiles of other populations are discussed in the light of results from Mbeli. (C) 2002 Wiley-Liss, Inc.