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CLUSTER ANALYSIS ON R0DENTS COMMUNITY IN THE EASTERN PAIU OF DESERT-STEPPE

MI Jingekuan, WANG Guan, WANG Chengguo   

  • Online:2006-07-25 Published:2007-09-13

内蒙古荒漠草原东段啮齿动物群落的聚类分析

米景川, 王瑾, 王成国   

  1. 内蒙古流行病防治研究所

Abstract: The systematic studies of rodents community in the eastern part of desert-steppe were carried out by using hierachal clustering method.By using Whittaker's index of similarity I=1-0.5Σ∣ai—bi∣ as clustering index,18 species of 5 families were classfied into 8 communities;
1. Meriones unguiculatus + Citellus dauricus community;
2. Meriones unguiculatus community;
3. M .unguiculatus + Allactaga sibirica community;
4. M .unguiculatus + Lagurus luteus + Ochotona daurica + A.sibirica community;
5 M .unguiculatus+ C.dauricus+Dipus sagitta community;
6.M .unguiculatus+ C.daurieus+C.erythrogenys commmaity;
7.C.aaurlcus+M .unguiculatus community;
8.0.daurica+M .ungulculatus community;
Compared with the cluster result of correlative coefficient,this result was more able to represent the component characteristics and community structure of the rodents in this part.

Key words: Desert-stepp, Rodents communit, Hierachial clustering method

摘要: 本文应用系统聚类法,对内蒙古荒漠草原东段啮齿动物群落进行分类研究。应用Whittaker相似性指数I=1-0.5Σ∣ai-bi∣作为聚类指标,初步将17个样地内所获5科18种啮齿动物划分为8个群落。经与相关系数的聚类结果比较,认为前者更能反映该段啮齿动物的组成特点和群落结构特征。

关键词: 荒漠草原, 啮齿动物群落, 系统聚类法