济南地区直翅目昆虫群落多样性

济南地区位于鲁中丘陵山区和黄河冲积平原交接地带 ,境内生境丰富多样。研究不同生境中直翅目昆虫群落的组成及多样性既有重要的理论意义又有现实的应用价值。近来对该地区直翅目昆虫的研究成果已有报道[2 ,3 ,6 ],但有关多样性的工作还少有研究。作者于 1 994年对本地区的直翅目昆虫做了较为全面的调查 ,应用生境型的概念[9,13],将直翅目昆虫分布的 1 3种生境划分为 5个生境型[2 ]。在此基础上本文着重研究了直翅目昆虫群落的多样性及环境等因素与群落多样性的关系。1　自然条件概况济南位于山东省中部 ,整个地势南高北低。南部为鲁中丘陵…

Orthopteran Community Diversity in Jinan

Based on habitat type, Orthopteran insects in Jinan is grouped into five communities,namely Barrenland community,Xeric(vegetation) community, Hygrophytic-mesophytic community ,Halobiotic community,Spelaean community, each one of which has characteristic dominant orthopteran species.The Shannon-Wiener function and Simpson index were employed to analyze community composition. Diversity and evenness were highest in the Xeric (vegetation) community(26862,09243 and 08145,09782) and lowest in the bare area community(08262,04150 and 05093,05533). The results of this study supported spatial heterogeneity theory.Horizontal structure,such as patchness and mosaicism,and vertical stratification of vegetation in the xeric(vegetation) habitat were found to play an important role in the species richness of orthopteran insect. In addition,the influence of cutting,grazing,and the spraying of insecticides on the population and community of orthopteran insect was also studied.