摘要
本文系统地整理了河西走廊西部的脊椎动物,总计242种和亚种,隶属于27目60科。在区系成分上属古北界的有193种,占79.75％;东洋界的仅3种,占1.23％;其余46种约占总数19.00％为两界兼有种。显然古北界种类占优势,广布种次之,东洋界种类较为缺乏,鱼类以高原鳅属和裂腹鱼为主体,属中亚高山复合体区系。陆生脊椎动物以古北界蒙新区成分占优势,青藏区成分次之,并兼有少量华北区成分。
An investigation in the western Gansu was made in 1974～1990.Altogether 242 species and subspecies were recorded .They belong to 26orders and 60 families. From the preliminary an alysis of our material, 193 species andsubspecies appertaining to palaearctic realm make up 79.75% of ourcollection; 3 species and subspecies are found to be 1.23% of the total,belonging to orient al; other 46 species and subspecies about 19.00% thetwo realms mentioned above, Obviously, the vertebrate of western HexiCorridor which belongs to the palaearctic realm is dominant, and orientaldistribution is scarce. The fish fauna mainly consists of Cyprinidae(Schzothoracinae) and Cobitidae (Triplophysa) and belongs to central Asiamountain Composition, Mongolia-Xingkiang region belongs to palaearctic,second both the Qinghai-Tibet region and with some North China.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
1991年第3期109-119,共11页
Journal of Lanzhou University(Natural Sciences)
关键词
脊椎动物
动物区系
地理分布
甘肃
Gansu
Hexi Corridor
Vertebrate
Fauna
geographical distribution
