摘要
大草蛉捕食棉蚜、棉铃虫卵或幼虫,其功能反应的类型均属 HollingⅡ型反应。温度对寻找效应有明显的影响,在35℃条件下,大草蛉对猎物寻找效应比10℃下高出近5倍,比15℃时高出近3倍。这说明,掌握适宜温度释放草蛉,可提高捕食作用,大草蛉对其自身密度的寻找效应可用 Watt 型模拟。
The functional response of Chrysopa septempunctata,an important polyphagous predator of cotton insect pests in China,to cotton aphid (Aphis gossypii)and cotton bollworm(Heliothis armigera) were determined as Holling′s type Ⅱ in the experimental condition in WuHan.The searching effeciency(E)of the predator varied with temperatures.Mutual interference affected the predation effeci- ency of C.septempunctata.
出处
《昆虫天敌》
CSCD
1990年第1期7-12,共6页
Natural Enemies of Insects
关键词
大草蛉
捕食作用
功能反应
Chrysopa Septempunctata
Predation
Functional Response
