草地蛴螬种群空间生态位研究  

A STUDY ON SPATIAL NICHE OF GRASS GRUB POPULATION

作　　者：袁庆华[1] 蒋文兰[1] 

机构地区：[1]甘肃农业大学草业学院

出　　处：《甘肃科学学报》1995年第1期85-88,共4页Journal of Gansu Sciences

基　　金："八五"国家攻关项目

摘　　要：蛴螬是云贵高原人工草地中危害最严重的一类害虫。作者通过对受害严重的黑麦草／白三叶混合草地中，三个蛴螬种群（即ＭｅｌｏｌｏｎｔｈａＳＰ．，ＳｅｒｉｃａｏｒｉｅｎｔａｌｉｓＭｏｔｓｃｈｕｌｓｋｙ和Ｍａｌａｄｅｒａａｓ－ｓａｍｅｎｓｉｓＭｏｓｅｒ）垂直和水平分布的调查，计算了各个种的生态位宽度和生态位重叠值，讨论了不同种的资源利用、种间竞争及生态位分离等特征。The grass grub is a kind of insect pests which does the most severe damage to thesown pasture on Yun Gui Plateau。Through a population investigation of three dominantspecies of grass grub, Melolontha sp,Serica orientalis Motschulsky and Maladera assamensisMoser,in the soil of ryegrass/white clover mixed pasture,the niche breadth and niche over-lap in both vertical and horizontal directions are calculated for the three species,and the useof resources use,interspecific competition and niche separation are discussed as well。

关 键 词：草地 蛴螬 生态位宽度 地下虫害 

分 类 号：S812.6[农业科学—草业科学]