甘肃省啮齿动物区系及地理区划的研究

甘肃啮齿动物有87种(含7亚种)，隶2目9科41属。可将甘肃划分6个省：1．陇东高原省，有28种(含l亚种)，2．中部黄土高原省，有30种；3．河西走廊省，有36种，三趾心颅跳鼠和短耳沙鼠为本省特有种；4．祁连山地省，有29种，高原高山鼠和银白高山鼠为本省特有种；5．甘南高原草原省，有34种，棕背鼾和普通田鼠为本省特有种，6．陇南山地省，有34种，豪猪和巢鼠为本省特有种。

THE FAUNA AND GE0GRAPHICAL DIVISI0N 0N GLIRES 0F GANSU PR0VINCE

There are 87 species(including 7 subspecies) of glires in Gansu province，belonging to 2 orders. 9 families and 41 genera. The fauna of glires consists of three camponents : The palaearctic species，the oriental species and the widely spread species．
Based on the faunistical characteristics of glires and zoogeographical feature，Gan su 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，and8 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 palaearetlc，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 total among them 32 belong to palaearetie species，3 belong to widely spread 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 total among them 24 belo g to palaearetic。1 belongs to oriental and 4 belong to widely spread species．Alticola stoticzkanus nanschanicus ＆ Alticola argentatus leucurus are characteristical ones．
5 .The province of South -Gansu Plateau Grasslands：There are 34 species of gllires，making up 39.08% of total，among them 23 belong to palaearctic，6 belong to oriental and 5 belong to widely spread species. Microtus arvalis obscurus ＆ Clethrionomys rufocanus shanseius are of characteristics．
6 .The province of South-Gansu Mountainous Region There are 34 species of glires，making up 39.08% of total; among them 10 belong to palaearetie, 12 belong to oriental and 12 belong to widely spread species. Hystrix hodgsoni subristata and Micromys minutus are characterristical species.