生物多样性 ›› 1998, Vol. 06 ›› Issue (1): 1-5.doi: 10.17520/biods.1998001

• 论文 •    下一篇

贺兰山岩羊种群生态及保护

王小明, 刘志霄, 徐宏发, 李明, 李元广   

  1. (华东师范大学生物系,  上海 200062)
  • 收稿日期:1996-05-17 修回日期:1997-09-15 出版日期:1998-02-20

The Blue Sheep population ecology and its conservation in Helan Mountain, China

WANG Xiao-Ming, LIU Zhi-Xiao, XU Hong-Fa, LI Ming, LI Yuan-Guang   

  1. Department of Biology ,East China Normal University , Shanghai  200062
  • Received:1996-05-17 Revised:1997-09-15 Online:1998-02-20

作者于1994年11月、1995年7~8月和9~10月在宁夏贺兰山对岩羊种群生态进行了初步研究,发现贺兰山岩羊的最适生态分布见于海拔1801~2000 m,岩羊每天有两个活动高峰,分别为早晨和下午。在观察到的448只岩羊中,发现平均群大小为5.5只,2~8只为一群的占总数的70.8%。岩羊种群的雌雄性比为1∶1.2,雌幼比为1∶0.44,贺兰山的岩羊处于增长趋势。目前在贺兰山,影响岩羊生存的主要因素是偷猎、人为干扰和家畜竞争。

The authors observed Blue Sheep ( Pseudois nayaur) population in the Helan Mountain , Ningxia Province in November 1994 ,between J uly and Nevember 1995 ,respectively. It was found that the Blue Sheep preferred to elevation of 1800~2000 m in Helan Mountain. The Blue Sheep foraged primarily in the morning and at dusk. Of the 448 individuals observed ,the average herd size was 5. 5 individuals. The Blue Sheep were frequently seen in small herds of two to eight individuals (70. 8 %) . Of the 403 Blue Sheep classified by sex , the ration adult females to males was 1:1. 2 , and the ratio of adult females to young was 1 :0. 44 ,the population showed a trend of increase. Hunting , human disturbance and livestocks were major threat against Blue Sheep’s lives.

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed