稻纵卷叶螟绒茧蜂空间分布规律研究  

STUDY ON THE SPATIAL PATTERN OF THE PARASITIOD APANTELES CYPRIS NIXON

作　　者：陆永跃[1] 梁广文[1] 

机构地区：[1]华南农业大学资源环境学院,广州510642

出　　处：《昆虫天敌》2004年第2期71-75,共5页Natural Enemies of Insects

基　　金：国家"973"项目子专题"增强稻田生物控害功能的基础研究"G2000016209)

摘　　要：研究结果表明稻纵卷叶螟绒茧蜂在稻田呈随机分布,建立了Iwao m*-m回归模型、Taylor幂模型、分别为m*=0.3645+0.8608m、log(s2)=0.0690+0.8975log m,通过对模型参数的分析得出稻纵卷叶螟绒茧蜂个体间相互吸引,分布的基本成分是个体群,在所有密度下都是随机分布,且随着密度增大,分布趋于均匀。给出了不同密度、不同准确度要求下的最适理论抽样株数,为该蜂的田间密度调查提供了依据。The spatial pattern of the parasitoid Apanteles cypris Nixon was studied in this paper. The spatial distribution of the parasitoid was random in the rice fields. The regression model of Iwao m* - m and Taylor model were m* = 0.3645 + 0.8608m and log (s2) = 0. 0690 + 0. 8975 logm, respectively. Those parameters revealed that the parasitoids attracted each other, and the fundamental component was the group composed of several individuals. The optimal sampling quantity was preesnted according to the density of the parasitoid.

关 键 词：稻纵卷叶螟绒茧蜂 空间分布 稻田 密度 幼虫寄生蜂 种群 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治] S435.112.1[农业科学—植物保护]