THE FAUNA AND GEOGRAPHICAL DIVISION ON GLIRES OF GANSU PROVINCE

There are 87 species(including 7 subspecies) of glires in Gansu province, belong-ing to 2 orders, 9 families and 41 genera. The fauna of glires consists of three comp-onents: The palaearctic species, the oriental species and the widely spread species. Based on the faunistical characteristics of glires and zoogeographical feature,Gansu may be divided into 6 zoogeographical provinces. 1. The province of East-Gansu Plateau:There are 28 (including 1 subspecies) of glires, making up 32.18% of total; among them 17 belong to palaearctic species, 3 belong to oriental species, and 8 belong to widely spread species. 2. The province of Middle Loess Plateau: There are 30 species of glires, making up 34.48% of total; among them 19 belong to palaearctic, 4 belong to oriental and 7 belong to widely spread species. 3. The province of Hexi Corridor: There are 36 species of glires, making up 41.38% of totali among them 32 belong to palaearctic species, 3 belong to widely spr-ead species, and 1 belongs to introduced species.Salpingotus crassicauda Brachiones P.prezewalskii are characteristical species. 4. The province of Qilian Mountainous Region: There are 29 species of glires, making up 33.33% of totali among them 24 belong to palaearctic, 1 belongs to oriental and 4 belong to widely spread species. Alticola stoliczkanus nanschanicus Alticola argentatus leucurus are characteristical ones. 5. The province of South-Gansu Plateau Grasslands: There are 34 species of glir-es, making up 39.08% of total; among them 23 belong to palaearctic, 6 belong to ori-ental and 5 belong to widely spread species. Microtus arvalis dbscurus Clethrionomys rufocanus shanseius are of characteristics. 6. The province of South-Gansu Mountainous Region: There are 34 species of gli-res, making up 39.08% of total; among them 10 belong to palaearctic, 12 belong to oriental and 12 belong to widely spread species.Hystrix hoddgsoni subristata and Micro-mys minutus are characteristical species.