云南哀牢山平河黑长臂猿栖息地乔木结构分析
Habitat Structure of Black Crested Gibbons (Nomascus concolor) in Pinghe, Ailao Mountains, Yunnan
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摘要: 采用样方方法对栖息于云南省哀牢山平河（E 101°17′16.1″, N 24°20′09.5″, 海拔2 600 m）的黑长臂猿 (Nomascus concolor) 栖息地乔木层结构进行了调查。调查中共记录到乔木57种隶属于23科37属；木质藤本植物9种隶属于6科8属。优势科主要为杜鹃花科（Ericaceae）、木兰科（Magnoliaceae）、山茶科（Theaceae）和壳斗科（Fagaceae）植物。主要树种重要值排序表明，露珠杜鹃（Rhododendron irroratum）为该地区最主要的优势种，在各坡位中均有广泛分布。乔木的多样性指数、均匀度指数在沟底明显降低，而乔木1层和2层所占的比例以及木质藤本的平均多度均随着坡位的下降而升高。与其他地区的长臂猿相比，哀牢山黑长臂猿的活动程度较低（10—22 m），果实性食物种类较少。Abstract: We surveyed the habitat structure of Black crested gibbons (Nomascus concolor) in Pinghe, Ailao Mountains, Yunnan Province (E 101°17′16.1″, N 24°20′09.5″, Alt 2 600 m) using a quadrat method. This survey recorded 57 tree species from 37 genera and 24 families and nine woody liana species from eight genera and six families. The dominant families are Ericaceae, Magnoliaceae, Theaceae and Fagaceae. After ranking the importance values of the major species, we found that Rhododendron irroratum, the dominant species of the region, is distributed in various slope positions. The arbor's diversity and evenness index decreased significantly in the ditch. The proportion of canopy Layer Ⅰ and Ⅱ, as well as the abundance of the woody vine, increased from the summit to the ditch. Compared with other populations black crested gibbons in Ailao Mountains act at a relatively low level above the ground (10-22 m) and have less fleshy fruit species for eating.
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