Observations on the population dynamics and behavior of wild chimpanzees at Bossou, Guinea, in 1979–1980
Observations on the population dynamics and behavior of wild chimpanzees at Bossou, Guinea, in 1979–1980
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1979-1980年几内亚博苏野生黑猩猩种群动态和行为观察
DOI：
10.1007/bf02381236
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发表时间：
1981
期刊：
影响因子：
1.7
通讯作者：
Y. Sugiyama
中科院分区：
文献类型：
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作者：
Y. Sugiyama
从1979年12月到1980年3月，在几内亚的博苏对一小群野生黑猩猩进行了80天的研究。自1976年11月上一次研究开始以来，由于5名成员失踪和3只出生，种群从21只减少到19只。四分之三的成年和青少年男性失踪，但没有成年和青少年女性改变成员在39个月。高社会凝聚力的这一组和相关的行为模式之间的研究变化不大，尽管消失的主导和其他males.In移动范围内的组，127成熟的油棕榈树进行了检查，基地的39被用于棕榈坚果开裂的黑猩猩。讨论了裂纹位置的选择。研究人员发现了一种可能的迹象，即从树的中空处吸水。在两个研究期间，观察到了剪叶的表现，即用嘴折断坚硬的叶子，表现出沮丧或轻微的攻击性。一只幼年雄性黑猩猩抓住了一只树穿山甲，后来被一只成年雌性黑猩猩吃掉，但其他组成员对肉几乎没有兴趣。很明显，博苏黑猩猩的狩猎和食肉行为不是习惯性的，而是偶然的。
A small population of wild chimpanzees was studied at Bossou, Guinea, for 80 days from December 1979 to March 1980 in its natural habitat. Since the beginning of the previous study in November 1976, the population decreased from 21 to 19 animals due to the disappearance of five members and three births. Three out of four adult and adolescent males disappeared, but no adult and adolescent female changed membership during the 39 months. The high social cohesion of this group and related behavior patterns changed little between the studies in spite of the disappearance of dominant and other males.In the moving range of the group, 127 mature oil-palm trees were examined; the base of 39 were used for palm-nut cracking by chimpanzees. The selection of cracking sites is discussed. A possible sign of leaf-sponging for drinking water from the hollow of the tree was found. The leaf-clipping display in which frustration or mild aggression is manifested by breaking stiff leaves with the mouth was observed throughout both study periods.A juvenile male chimpanzee was seen to catch a tree-pangolin which was later eaten by an adult female but other group members took little interest in the meat. It is clear that hunting and meateating are not habitual but accidental among the chimpanzees of Bossou.