Ranging and grouping patterns of a western lowland gorilla group at Bai Hokou, Central African Republic
Ranging and grouping patterns of a western lowland gorilla group at Bai Hokou, Central African Republic
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中非共和国拜霍口西部低地大猩猩群的分布和分组模式
DOI：
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发表时间：
1997
影响因子：
2.4
通讯作者：
M. Remis
中科院分区：
文献类型：
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作者：
M. Remis
1990年至1992年在中非共和国的Bai Hokou研究地点对大猩猩群的分布和分组模式进行了27个月的研究。研究组范围远每天（平均= 2.3公里/天），并有一个大的家庭范围（22.9平方公里），相对于山地大猩猩，和每年的测距模式不同。在1990年至1992年期间，bimale研究组觅食凝聚力较低，有更灵活的分组模式比山地大猩猩。研究组有时分为两个不同的觅食小组，每个小组由银背领导，这些小组偶尔分开睡觉（平均= 950米）。低地大猩猩和同域分布的黑猩猩一样，依赖许多相同的水果资源。在特定的人口状况下，大猩猩和同域分布的黑猩猩一样，可能会调整觅食群体的规模，以减少群体内的觅食竞争。然而，相对于黑猩猩，低地大猩猩饮食中的纤维含量可能放松了对觅食群体规模的限制，并促进了群体凝聚力。Am. J. Primatol. 43：111-133，1997.© 1997 Wiley利斯公司
The ranging and grouping patterns of a gorilla group were studied during 27 months from 1990–1992 at the Bai Hokou study site, Central African Republic. The study group ranged far daily (average = 2.3 km/day) and had a large home range (22.9 km2), relative to mountain gorillas, and ranging patterns differed between years. During 1990–1992, the bimale study group foraged less cohesively and had more flexible grouping patterns than mountain gorillas. The study group sometimes split into two distinct foraging subgroups, each led by a silverback, and these subgroups occasionally slept apart (mean = 950 m apart). Lowland gorillas rely on many of the same fruit resources as sympatric chimpanzees, and under certain demographic situations gorillas, like sympatric chimpanzees, may adapt their foraging group size to reduce intragroup feeding competition. However, the fiber content of the lowland gorilla diet likely relaxes constraints on foraging party size and facilitates group cohesion relative to chimpanzees. Am. J. Primatol. 43:111–133, 1997. © 1997 Wiley‐Liss, Inc.