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:1998年 10月～ 1999年 6月 ,对云南丽江玉龙雪山自然保护区五种森林植被带采用夹日法进行小型兽类的垂直分布调查 ,共获小兽 5目 8科 17属 2 7种 ,共 15 30只 ;文中对各小兽群落结构、物种丰富度、物种多样性 ,均匀度和生态优势进行了测定和比较 ,认为群落稳定性最高是针阔叶混交林 ,而最低是农耕区。通过采用系统聚类和极点排序分析方法对各植被带小兽类进行数值分类 ,明确了该山系两大动物区系的分界线和各垂直带小兽分布的区系范畴 ;研究认为 ,海拔高度 (垂直带性 )是制约山地动物区系分布的主导因素 ,人们的生产活动对小兽群落有重要影响 ;此外 ,还对地处分界线的温凉性针阔叶混交林小兽群落特征、区系特点进行了分析和讨论
: From October 1998 to June 1999, vertical distribution survey of small mammals was conducted on five forest vegetation belts in Yulong Snow Mountain Nature Reserve in Lijiang, Yunnan Province. A total of 2 7 species belonging to 17 genera, 8 families, were identified , A total of 1530; the small mammal community structure, species richness, species diversity, evenness and ecological advantages were measured and compared that the community stability is the highest coniferous and broad-leaved mixed forest, and the lowest farming area . By using systematic clustering and pole-ordering analysis, the classification of small mammals in each vegetation zone was carried out. The boundaries of the two major fauna and the fauna of small animals in each vertical zone were clearly identified. It is concluded that the altitude (Vertical zonality) is the dominant factor restricting the distribution of mountain fauna, people’s production activities have an important impact on the small mammal community; In addition, the characteristics of the small mammal community in temperate coniferous and broad-leaved mixed forests located in the dividing line, Department of characteristics were analyzed and discussed