关键词: 普氏原羚, 分布范围, 种群数量

Abstract: There were 4 populations and less than 350 individuals of the Przewalski's gazelle (Procapra przewalskii),an endemic and critically endangered species,in Qinghai Province. In order to provide accurate information about this species, the distribution and population size of Przewalski's gazelle in Qinghai Province,were specially investigated from August to September,2003. The results of this investigation showed that there are 7 isolated populations and 602 individuals of Przewalski's gazelle in Qinghai Province presently. These populations include Yuanzhe population,Hudong-Ketu population, Haiyan-Gangcha population,Talixuanguo population,Bird-island population,Shengge population and Qiejitan population.The Talixuanguo population was reported for the first time. Comparing our results with those of the earlier report
shows:(1)the population counts in Yuanzhe and Bird-island show declining tendencies;(2)the count for the Haiyan-Gangcha population obviously increased;and (3)the Hudong-Ketu population size appears to be increasing. These changes are related to the quality of animal habitat and the degree of artificial disturbance. These results were demonstrate:(1) the extant populations of Przewalski's gazelle show evidently patchy distribution,(2)the habitat of this animal is descreasing,(3)the habitat quality of the gazelle is still deteriorating. Accompanying economic development of this species’distribution
area,protection will be very important.

Key words: Distribution area, Przewalski's gazelle (Procapra przewalskii), Population size