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.
出处
《昆虫天敌》
CSCD
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)
