麻黄蚜实验种群的生命表

Life table of Ephedraphis gobica population in laboratory

麻黄蚜虫EphedraphisgobicaSzelegiewicz是危害中药材———草麻黄的重要害虫之一。通过室内饲养 ,构建了该蚜虫的实验种群生命表。结果表明 :该蚜虫的内禀增长率 (rm)、周限增长率 (λ)、净增殖率 (R0 )、种群世代平均周期 (T)和种群加倍时间 (t)分别是 :0 2 60 ,1 2 98,1 9 2 48,1 1 3 5 4和 2 661。

The life table of Ephedraphis gobica Szelegiewicz population was constructed in laboratory when it fed on Ephedra sinica. The result showed that intrinsic rate of increase(r-m),finite rate of increase(λ),net reproduction rate(R 0),mean generation time(T) and double population time(t) were 0.260,1.298,19.248,11.354 and 2.661, respectively.