摘要
八斑鞘腹蛛对棉铃虫的幼虫有明显的控制作用。其控制作用的大小随自身密度的增大而下降。随着捕食者和猎物密度的增加,相互干扰作用增强,捕食作用率下降。其捕食量与温度呈抛物线关系,以30℃恒温条件下的捕食量为最大。
Efficiency of the spider controling cotton bollworm is remarkable. The functional response of the spider to cotton bollmorm is Holling type Ⅱ.which can be described by using Hoiling disc equation:E=0. 8613N/(1+0. 00947N). Mutal interference affected the predation efficiency of the spider. The functional response to itself density can be described be using Watt equation :E=0. 59955P -0. 24998. Under different homeothermic condition,the amount of catch of the spider to temperature can be described be using parabola curve.
出处
《湖北大学学报（自然科学版）》
CAS
1992年第4期392-397,共6页
Journal of Hubei University：Natural Science
关键词
八斑鞘腹蛛
棉铃虫
捕食
Coleosoma octonnaculatum Cotton bollwarm Predation
