毛竹林节肢动物群落时间格局及其Fisher分类

该文对福建三明大面积毛竹林节肢动物群落的系统调查表明:1 a中群落林下层类群丰富度除10月外均比竹冠层类群小,但物种多样性、均匀度除3月外均比竹冠层类群大。采用F isher分类法分别将2类群的时间格局进行最优分割,竹冠层类群可划分为9~10月、11月、12月到次年7月、8月4个阶段;林下层类群可划分为9~11月、12月到次年2月、3月、4~8月4个阶段,各类群各阶段均表现出其物种分布格局及其发展变化的不同特点。

Temporal Pattern of the Arthropod Community in Phyllostachys heterocycla var. pubescens Forest and Its Fisher Sorting

In terms of systematic investigation of Phyllostachys heterocycla var.pubescens forests in Sanming,Fujian Province,P R China from 2001 to 2002,temporal pattern of the arthropod community and its Fisher sorting were studied.The results showed that the arthropod abundances in the underlayer of forest in a year were all lower than those in the canopy of forest except of in October,but its species diversity and evenness were all higher in a year except of in March.The temporal pattern of the canopy arthropod group in a year was divided into 4 stages,i.e.,September to October,November,December to next July and August.While,for the underlayer arthropod group,the 4 stages were from September to November, December to next February,next May and next April to August.