Abstract:

The seasonal dynamics of vertical distribution of the dominant guilds and their relation in the arthropod community in different intercropped and managed jujube yard ecosystems in Taigu were studied. The results showed that there were some laws of vertical distribution of the dominant guilds in the arthropod community in the jujube yard ecosystems. There was no obvious influence of the dominant guilds on vertical distribution of the arthropod community whether insecticide was used or not or there were weeds or not. In the different ecosystems, the proportions of guilds of the arthropod community were different seasonally and spatially, and there was some relation at the same nutrient level. The relation revealed that the neutral insects played an important role in the food web of the arthropod community. For this reason, the protection and use of natural enemies and neutral insects were equally important in the control of insect pests.

Key words: Jujube yard ecosystem, Arthropod community, Guild, Correlation, Seasonal dynamics