扎龙湿地不同生境的昆虫多样性  

Insect diversity of different habitat types in Zhalong Wetland, Northeast China

作　　者：顾伟[1] 马玲[1] 丁新华[1] 张静[1] 韩争伟[1] 

机构地区：[1]东北林业大学林学院,哈尔滨150040

出　　处：《应用生态学报》2011年第9期2405-2412,共8页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金项目(30870394)资助

摘　　要：为了探讨湿地不同生境对昆虫物种多样性的影响,对扎龙湿地8种生境的昆虫进行了系统调查.共捕获昆虫5822只,分属11目58科143种,其中直翅目、双翅目、蜻蜓目为扎龙湿地的优势类群.不同生境中,草原草甸昆虫多样性最高,湖边生境多样性指数和均匀度指数均较高,杂草甸均最低.聚类分析和主分量分析结果表明,不同生境的昆虫群落相似性与水资源状况和植被类型有关,捕食性类群种类数和个体数量对昆虫群落稳定性具有重要的调控作用.湖边生境昆虫群落稳定性最强,湿草甸稳定性最弱.湿地水资源状况能影响昆虫生存生境,进而影响昆虫群落的组成和分布格局.In order to approach the effects of different habitat types in wetland on insect diversity, an investigation was conducted on the insects in eight types of habitats in Zhalong Wetland. A total of 5822 insects were collected, belonging to 143 species, 58 families, and 11 orders, among which, Orthoptera, Dipteral and Odonata were the dominant taxa. The species diversity was the highest in grassland meadow, and the Shannon diversity index and evenness index were higher in lakeside but the lowest in wet meadow. Cluster analysis and principal component analysis showed that the similarity of the insect community in the habitats was related to the water source status and vegetation type, and the species and individual number of predatory taxa had important regulation effects on the insect community stability. Lakeside had the strongest insect community stability, while wet meadow had the weakest one, indicating that habitat water source status could affect insect survival, and further, affect the species composition and distribution pattern of insect community.

关 键 词：昆虫群落 生境类型 多样性 稳定性 主分量分析 扎龙湿地 

分 类 号：Q968.1[生物学—昆虫学]