吉林省西部草原蝗虫群落的集团结构

GUILD STRUCTURE OF GRASSHOPPER COMMUNITY IN THE GRASSLAND OF WEST JILIN PROVINCE

本文应用生态学中正在发展的集团理论,分析了吉林省西部草原蝗虫群落的结构及种间关系。该蝗虫群落由13种蝗虫组成。根据蝗虫的取食行为和栖息地选择两项生态指标,运用模糊聚类分析和主成分量分析方法,将蝗虫群落划分为4个集团,并研究了各集团内部和集团之间蝗虫的生态关系,以及环境因素对蝗虫行为的作用。文中还讨论了有关资源的确定,竞争理论和集团理论等问题。

In this article, the developing theory of guild in ecology is applied to study on the guild structure of grasshopper community in the grassland of west Jilin prvince. This grasshopper community consisted of 13 species of grasshopper. The cluster analysis and principal components analysis were made on the basis of foraging behavior and habitat choice as indicators to divide this grasshopper community into four guilds.They were Euchorthippus unicolor, Oxya chinensis, 'the guild of perching on the surface of earch and foraging in lower level', and 'the guild of perching on the plant and foraging in upper level', The ecological relationships within the guilds and between the different guilds and the effects of environmental factors on the behaviors of grasshopper were studied and reasonaly explained from point-view of ecology. Some issues concerning the theories of guild and competition were also discussed.