Biodiversity Science ›› 2000, Vol. 08 ›› Issue (3): 262-270.doi: 10.17520/biods.2000037

• 论文 • Previous Article     Next Article

Insect abundance and environmental effects in Shennongjia Natural Reserve, Hubei Province

ZHOU Hong-Zhang, YU Xiao-Dong, LUO Tian-HOng, HE Jun-Jian, ZHOU Hai-Sheng, YE Chan-Juan   

  1. Institute of Zoology , Chinese Academy of Sciences , Beijing 100080
  • Received:1999-05-24 Revised:2000-03-25 Online:2000-08-20

Insects are the most species- rich group of all organisms. Studying insect species diversity is a fundamental part of natural conservation , and its main purpose is to reduce the increasing loss of biodiversity on this globe. Nevertheless , there have been very few studies involving insect species conservation in China. Shennongjia Natural Reserve , which owns plenty of insects species and other organisms , is one of the most important areas for terrestrial biodiversity of China. Although Shennongjia Natural Reserve has been well protected , few work has been fulfilled on insect species diversity. In this study , we focused on investigating insect species and their abundance in Shennongjia Natural Reserve in order to understand distribution patterns in different habitats , so that we can get fundamental knowledge for long- term monitoring and conservation in this area. We chose 23 samples representing six different types of vegetation , i. e. coniferous forests , deciduous broadleaved forests , mixed forests , shrubs near river , meadows and bamboo. Besides the ordinary methods such as sifter and net trap , Barber trap was employed as the main way of quantification. The results were as follows : (1) a total of 58 368 specimens were collected , of which 46 213 were insects ; the rest belonged mainly to Annelida , Mollusca , Myriopda and Arachnida. Of insects , the most abundant groups were found to be Formicidae (Hymenoptera) , Staphylinidae and Carabidae (Coleoptera) , and next to them were Hemiptera , Homoptera , Diptera , Orthoptera and Neuroptera ; (2) vegetation types determined the distribution of insects , but the impact was significant only in terms of relatively lower taxa , family level , e. g. the beetle groups like Staphylinidae and Carabidae. From relatively higher taxa , i. e. order level , no difference was evident (the following groups were all considered in details : Coleoptera , Diptera , Hymenoptera , Orthoptera , Hemiptera and Homoptera) ; (3) some species were found in some special sites , which indicated that Shennongjia was a special area for species conservation.

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