摘要
中国的蒙古野驴(Equus hemionus)和西藏野驴(E. kiang)，其分布区在动物地理区划上同属古北界，但蒙古野驴分布在蒙新区，西藏野驴在青藏区，两区的自然地理特点差异显著。蒙古野驴分布区面积约为14×104 km2 (40°20′～46°40′N、85°40′～107°30′E)，海拔高程介于700～1500 m,初步估算数量不超过2000头；西藏野驴分布区面积约为97×104 km2 (27°48′～39°27′N、78°40′～103°00′E)，海拔高程介于3000～5500 m，初步估算有近90*!000头。地质时代野驴分布较广泛，历史时期分布区不断变迁和退缩，本文对其原因亦作了初步探讨。
During 1993～1997, the status of Chinese wild ass was assessed. The Chinese wild ass is divided into two species, i.e. Mongolian wild ass or chigetai, kulan (Equus hemionus) and Tibetan wild ass or kiang (Equus kiang). Equus hemionus is distributed in the Meng_Xin Region, while Equus kiang was found in the Qin_Zang Region, including Inner Mongolia , Xinjiang, Tibet, Qinghai, Gansu and Sichuan Province. The distribution area of Mongolian wild ass is about 0.14 million km2 (40°20′～46°40′N，85°40′～ 107°30′E), about 700～1500 m in altitude, with a population size less than 200 0. Tibetan wild ass is distributed in an area of about 0.972*!507 million km2 (27°48′～39°27′N,78°40′～103°00′E)，about 3000～5500 m in altitude, with an estimated population size of 88*!871.
出处
《生物多样性》
CAS
CSCD
2000年第1期81-87,共7页
Biodiversity Science
基金
国家林业局资助科研项目
关键词
蒙古野驴
西藏野驴
分布区
气候变迁
人类活动
Chinese wild ass (Equus hemionus, E.kiang), endangered species, Xinjiang, Tibet, Qinghai, Inner Mongolia
