生物多样性 ›› 1998, Vol. 06 ›› Issue (1): 1-5.doi: 10.17520/biods.1998001
• 论文 •
王小明, 刘志霄, 徐宏发, 李明, 李元广
WANG Xiao-Ming, LIU Zhi-Xiao, XU Hong-Fa, LI Ming, LI Yuan-Guang
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
王小明, 刘志霄, 徐宏发, 李明, 李元广. (1998) 贺兰山岩羊种群生态及保护. 生物多样性, 06(1), 1-5.
WANG Xiao-Ming, LIU Zhi-Xiao, XU Hong-Fa, LI Ming, LI Yuan-Guang. (1998) The Blue Sheep population ecology and its conservation in Helan Mountain, China. Biodiversity Science, 06(1), 1-5.
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