摘要
通过对果洛州玛多县26.67×104hm2鹰架招鹰生物控制害鼠种群数量项目区调查,在鹰架设立前鹰类日平均遇见数为12个,筑巢率为24%;鹰架设立后1年鹰类日平均遇见数为27.5个,筑巢率为72%,鹰架的招鹰效果为鹰架设立前的2.29倍,筑巢率是鹰架设立前的3倍。按鹰类非繁殖期每鹰巢一只鹰计算,项目区有鹰类1152只,其害鼠有效洞口减退率达25.71%。
Smwey on rodent control by the eagle rack was conducted in the area of 26.67× m^2h m^2 in Maduo county, Guoluo prefecture. Number of wild eagle daily occurrence was 12 before setting up of the racks, and 27.5 after 1 year of setting up. Number of eagle occun'ence after the rack setting up was 2.29 times more than that before thek setting up. Rate of nest was 24%. Nest rate in 2003 was 72%, 3 times more than that before setting the racks. It was estimated that there were 1152 eagles in the project area if a nest carried one eagle, number of active burrow of rodent decreased by 25.71%.
出处
《青海草业》
2004年第1期52-54,58,共4页
Qinghai Prataculture
关键词
玛多县
鹰架招鹰
生态控制
种群数量
生态平衡
草地鼠害
eagle-attracting-rack, rodent biological control, species community number, effect of control, biological balance.
