Long-Term Observations of Siamang Behaviour
作者:
D.J. Chivers,
J.J. Raemaekers,
F.P.G. Aldrich-Blake,
期刊:
Folia Primatologica
(Karger Available online 1975)
卷期:
Volume 23,
issue 1-2
页码: 1-49
ISSN:0015-5713
年代: 1975
DOI:10.1159/000155660
出版商: S. Karger AG
关键词: Hylobatidae;Symphalangus;Malaya;Ecology;Behaviour
数据来源: Karger
摘要:
Long-term observations are presented on the behaviour of the siamang ape, Symphalangus syndactylus, in the lowland forest of central Malaya. The data were collected during two dry and three fruiting seasons between 1969 and 1973 inclusive on two groups with adjacent ranges; comparisons are made within and between sample periods, and between groups. The influence of weather on daily activities is considered. Food intake is analysed in terms of number of food trees, number of visits to these trees, and the cumulative time spent feeding on various food categories. Ranging behaviour is investigated in terms of distance travelled, area covered, and distribution of time and of food trees about the range. The occurrence of calling is described and compared with that of the white-handed gibbon in the same area. A discussion ensues on each of these aspects of behaviour in turn. Emphasis is laid on the similarity of behaviour of the two groups at any one time, and on the degree of their response to the fluctuations of environmental variables. Finally, the application to siamang of ranging concepts currently used in animal behaviour is considered briefly.
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