元谋德昌松毛虫空间分布型及生命表初步研究  

A Preliminary Study on Spatial Distribution Pattern and Life Table of Dendrolimus punctatus tehchangensis in Yuanmou County

作　　者：赵培仙 冯永刚 许国莲[2] 柴守权[3] 

机构地区：[1]云南省元谋县森林病虫防治检疫站,云南元谋651300 [2]西南林学院保护生物学学院,云南昆明650224 [3]国家林业局森林病虫害防治总站,辽宁沈阳110034

出　　处：《西南林学院学报》2002年第3期42-46,共5页Journal of Southwest Forestry College

基　　金：云南省应用基础研究重点基金资助项目 (98C0 0 7Z)

摘　　要：对元谋县德昌松毛虫空间分布型和生命表的研究结果表明 :德昌松毛虫在林内呈聚集分布 ,该虫种群的聚集由昆虫行为引起 ,得出最适抽样株数换算式 :N =2 81 4/ x + 4 8 4;寄生蝇和寄生蜂是元谋县德昌松毛虫种群变动的关键因子 ,除第 1代 1 ,2龄幼虫期自然死亡外 ,蛹期是寄生蝇和寄生蜂寄生死亡率最高时期 .The study on the spatial distribution pattern and life table on Dendrolimus punctatus tehchangensis indicates that the distribution in forest stand is in the form of congregation that results from their behavior.The most suitable number of sample trees is as follows:N=281.4/+48.4.The parasite bees and flies are the major affecting factors.The prime death appears in pupa caused by the above two factors except for the natural death in the first and the second instar larva of the first generation.ctatustehchangen

关 键 词：元谋 德昌松毛虫 空间分布型 生命表 云南 

分 类 号：S763.421[农业科学—森林保护学]