三突花蛛对亚洲玉米螟幼虫的捕食作用  

Predatory Function of Misumenopos tricuspidata on Larvae of Ostrinia furnacalis

作　　者：辛肇军[1] 李照会[1] 叶保华[1] 

机构地区：[1]山东农业大学植物保护学院,山东泰安271018

出　　处：《山东农业科学》2012年第10期89-91,共3页Shandong Agricultural Sciences

基　　金：山东省自然科学基金课题(Y2006D16)

摘　　要：在室内条件下,研究了三突花蛛对亚洲玉米螟二龄幼虫的捕食作用及寻找效应。结果表明,三突花蛛对亚洲玉米螟幼虫的捕食效应可拟合HollingⅡ型,拟合方程为Na=1.1359N/(1+0.09534N),日最大捕食量为64.35头;三突花蛛的寻找效应利用Hassell-Varley干扰模型拟合,得出E=0.4063P-0.5891,利用Bed-dington模型拟合获得E=0.4026/[1+0.2382(P-1)],表明寻找效应随三突花蛛自身密度的增大而呈下降趋势。The predation function and searching response of Misumenops tricuspidatus on 2nd instar larvae of Ostriniafurnacalis （Guen6e） were studied. The predation functional response of Misumenops tricuspidatus on larvae of Ostrinia furnacalis were fitted well with Holling＇ s type 11 model, Na = 1. 1359N/（ I ＋ 0. 09534N）, and the daily maximum number was 64.35. The searching rate model of Misumenops tricuspidatus could be described by Hassell- Varley model as E = 0. 4063 P-^0.5891 and by the Beddington model as E = 0. 4026/[ 1 ＋0.2382（ P- 1 ）]. The two models showed that the searching rate of Misumenopos tricuspidata de- creased with the increase of predator＇ s density.

关 键 词：三突花蛛 亚洲玉米螟 捕食效应 寻找效应 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]