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新疆兽类分布格局及动物地理区划探讨

1. 中国科学院动物研究所,北京
• 出版日期:2007-12-11 发布日期:2008-07-07

Distribution pattern and zoogeographical discussion of mammals in Xin-jiang

HUANG Wei,XIA Lin,FENG Zuojian,YANG Qisen

• Online:2007-12-11 Published:2008-07-07

Abstract: Xinjiang is located in the northwestern portion of China. Altogether,138 species of mammals belonging to 8 orders and 22 families have been recorded by the authors in Xinjiang. Among them,119 species (86.2% of the total number of the mammals) are considered to be Palaearctic and 9 species to be Oriental mammals,with the others considered to be widely spread mammals. On the basis of regions of investigation,we identified 85 Operational Taxonomic Units (OTU) for clustering. Then the information of mammals in each was used to compute composition similarity for the 85 OTU using
Ward's methods of cluster analysis. According to the composition of clustering analysis and of the local landform in Xinjiang etc. , the zoogeographic distribution can be divided into three grades. First, the region of northern part and Hami Basin is separated from the others in Xinjiang. Second,the region of the Altay Mountains is separated from the others in the north,while the region of northern Karakorum-Kunlun Mountains and southern Tarim Basin is separated from the others in the south. Third,the deltaic region of Yily,the region of southern Junggar Basin,the region of Tarbagatai Mountains and
the northwest of Junggar Basin and the region of Hami Basin and western Tianshan Mountains are all separated from each, while the region of southern Tianshan Mountains and Pamir Altiplano and the region of northern Tarim Basin are separated from each other. Obviously,the distribution of species is associated with the environments where they live,and some natural barriers can restrict dispersal of mammals.