摘要
2008年5~9月,对贵州麻阳河国家级自然保护区内7群黑叶猴跟踪观察,对发现的27个夜宿地进行调查分析。结果表明,黑叶猴夜宿地多位于常绿阔叶林中,表观类型以岩洞和岩缝为主,周围植被层以灌木为主。夜宿地坡度均≥60°,对坡向没有明显的选择性,干扰生境中多位于中坡位,未干扰生境中多位于下坡位。影响夜宿地选择的定量生境因子夜宿地海拔、距最近人类活动距离、距水源距离、距河流海拔高度和距其所在悬崖顶部的高度显著差异(P<0.05),而距其所在悬崖底部高度、周围植被丰富度差异不显著(P>0.05)。
7 groups of Francois' s langur ( Trachypithecus francoisi) were surveyed for their selection of sleeping sites in Mayanghe national nature reserve from May to September, 2008.27 sites were recorded, all located on steep slopes≥60°, mostly in evergreen broad- leaved forests; sleeping sites were mainly caves or lock slots, with shrubs as the main vegetation around; no selection to slope aspects were discovered; in disturbed habitats, sites on the middle of slopes were selected, while in undisturbed habitats, low- er position of slopes were selected.Quantitative habitat factors: elevation of the site, distance to nearest human activity and water sources, height to river and height to top of its cliff influenced the site selection with differences significant ( P 〈 0.05), differences of heights to bottom of the cliff and richness of vegetation around the site were not significant.
关键词
黑叶猴
干扰生境
未干扰生境
夜宿地选择
Francois's langur
Disturbed habitat
Undisturbed habitat
Sleeping site selection