Li Z Y
Kunming Institute of Zoology, Chinese Academy of Sciences, Yunnan.
Folia Primatol (Basel). 1993;60(1-2):83-93. doi: 10.1159/000156678.
In this paper the habitat structure and ecology of Presbytis françoisi and Presbytis leucocephalus are compared. Observations were made of the two langur species in areas of southwest Guangxi province in which the langurs occur but are not sympatric. The results showed that the habitat of P. leucocephalus differs from that of P. françoisi and that the habitat in western areas was different from that in eastern areas in terms of vegetation and other criteria. P. françoisi was limited in its distribution to localities at higher altitudes, in contrast to P. leucocephalus. This may be due to human activities such as crop cultivation and logging. With respect to its activity pattern, P. leucocephalus spent 51.8% of its day in the trees and 48.2% on the rocky substrate. The results of this study suggest that Presbytis may best be regarded as a semiarboreal form.
本文对黑叶猴和白头叶猴的栖息地结构与生态进行了比较。在广西西南部有叶猴分布但不同域的地区对这两种叶猴进行了观察。结果表明，白头叶猴的栖息地与黑叶猴不同，且西部地区的栖息地在植被及其他标准方面与东部地区不同。与白头叶猴相比，黑叶猴的分布局限于海拔较高的地区。这可能是由于农作物种植和伐木等人类活动所致。就其活动模式而言，白头叶猴一天中有51.8%的时间在树上，48.2%的时间在岩石基质上。本研究结果表明，叶猴最好被视为半树栖形态。
