校园不同生境昆虫物种多样性比较

为了探讨不同生境中昆虫物种多样性的差异，对井冈山大学校园内3种生境（A区：灌木．杂草混生区、B区：乔木区、C区：杂草三种生境）的昆虫进行了系统调查，共捕获昆虫567头，隶属于9目76种，其中鳞翅目、直翅目、同翅目为校园内的优势类群。不同生境中，A区（灌木．杂草混生区）昆虫多样性最高，c区最低（杂草区）。A、B、C三区的昆虫多样性指数日’分别为2．00，1．99和1．94，丰富度指数￡k分别为12．75，9．09和4．51。区域A与区域B昆虫相似性最高。结果表明，不同生境的昆虫群落相似性与植被类型有关。人类活动通过影响昆虫生境，进而影响昆虫群落的组成和分布格局。

COMPARATIVE STUDY ON THE DIVERSITY OF INSCT IN THREE DIFFERENT AREAS IN JINGGANGSHAN UNIVERSITY

In order to approach the differences of insect diversity of different habitat types in Jinggangshan University campus, an investigation was conducted on the insects in three types of habitats in Jinggangshan University campus. A total of 567 insects were collected, belonging to 76 species, 9 orders, among which, Lepidoptera, Homoptera and Orhoptera were the dominant taxa. The species diversity was the highest in A type area, and the lowest in C type area. The H＇ index of three areas was 2.00, 1.99 and 1.94, and the D,,a index was 12.75, 9.09 and 4.51 respectively. The A and B is the most similar in three areas according to Jaecard coefficient. The results showed that the similarity of the insect community in the habitats was related to the plant types and people activities. Rich plants and poor people activities contribute to the strongest insect community stability. It indicated that habitat plants could affect insect survival, and further, affect the species composition and distribution pattern of insect community.