甘肃鸡类分类区系研究

本文记述甘肃鸡类19种,另9个亚种,占国内鸡类57种的33.33％,国家保护的珍稀种类11种,占种数的57.89％。古北界种类占优势,占63.16％,其中以高地型种类为主。区系组成与青海、四川二省更接近。山地阻隔,差异悬殊的生态环境促进了分布区广,进化趋势强烈的种的亚种分化。

TAXONOMIC AND FAUNISTIC STUDIES OF GALLINACEANS IN GANSU

The taxonomy and fauna of gallinaceans in Gansu were studied in this paper. There are 19 species and 9 subspecies of Galliformes in Gansu Province. They belong to the families of Tetraonidae and Phasianidae. The number of species of gallinaceans in Gansu accounts for 33. 33% of the total number of species in China. Among them 11 species are rare species which are protected by our country, occupying 57. 89% of the total number of the gallinaceous species from the province. Among 19 species there are 13 Palearctic species making up 63. 16% of the total number of species from the province. The alpine species are major among the Palearctic species. The faunistic compositions are very similar to those of gallinacean's fauna of Qinghai and Sichuan Provinces. Geographical isolation and very different ecological environments promote subspeciation of species which have wider geographic distribution regions and strong evolution trends.