Zhou Qi-Hai, Cai Xiang-Wen, Huang Cheng-Ming
College of Life Science, Guangxi Normal University , Guilin 541004, China.
Dongwuxue Yanjiu. 2010 Aug;31(4):421-7. doi: 10.3724/SP.J.1141.2010.04421.
To explore the influence of habitat fragmentation on the ecology of the Francois's langur (Trachypithecus francoisi), data on habitat use were collected from a group of Francois's langurs living in an isolated hill in the Fusui Rare Animal Nature Reserve, Guangxi Province, from March to December 2001. To identify the effect of human activities on vegetation, 10 vegetation quadrats were sampled in the habitat, including 5 on the slopes with more human disturbance, and 5 on the hill-tops with less human disturbance. Because of human destruction, not only the number of plant species, diversity and density, but also the densities of preferred foods for Francois's langurs were less on the slope than those on the hill-top. Analyses of habitat use indicated that the langurs showed preference for the hill-top with abundant food resources and less human disturbance, and avoided to use the slope with more human disturbance. In the rainy seasons, langurs spent significantly more time on the hill-top rather than on the cliff. Therefore, habitat selection and use of the species may be resulted from the balance of feeding benefit and human disturbance. Francois's langurs used the platforms and caves on the cliffs as sleeping sites. They reused some sleeping sites, and tend to use the same caves on consecutive nights.
为探究栖息地破碎化对黑叶猴（Trachypithecus francoisi）生态的影响，于2001年3月至12月，在广西扶绥珍稀动物自然保护区一座孤立山丘上的一群黑叶猴中收集了栖息地利用数据。为确定人类活动对植被的影响，在栖息地选取了10个植被样方，其中5个位于人类干扰较多的山坡，5个位于人类干扰较少的山顶。由于人类破坏，不仅植物物种数量、多样性和密度，而且黑叶猴喜食食物的密度在山坡上都比山顶上少。栖息地利用分析表明，黑叶猴偏好食物资源丰富且人类干扰较少的山顶，避免使用人类干扰较多的山坡。在雨季，黑叶猴在山顶上花费的时间明显多于在悬崖上的时间。因此，该物种的栖息地选择和利用可能是取食益处与人类干扰平衡的结果。黑叶猴利用悬崖上的平台和洞穴作为睡眠场所。它们会重复使用一些睡眠场所，并且倾向于连续几晚使用同一个洞穴。
