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。
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
关键词
草地
蛴螬
生态位宽度
地下虫害
Pasture
Grass grub
Niche breadth
Niche overlap
Niche separation
