Dynamic changing patterns of structure of arthropod community in poplar stand in Hefei,Anhui Province

Based on the principles of community ecology,the dynamic changing patterns of structure of arthropod community in poplar stand were analyzed by path analysis,cluster analysis and optimal cut-apart.The results of path analysis showed that diversity indexes in arthropod community were decided by evenness,numbers of species,richness and dominant concentration.The clustering result showed that community could be grouped into 5 clusters.The optimal cut-apart of the community was divided into 4 stages,i.e.,March-April,May-August,September-October,and Novemer-December.Both of clustering and optimal cut-apart reflected the seasonal dynamic tendency.