扎龙湿地不同生境的昆虫多样性

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、蜻蜒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.

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

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....