Arthropod community structure and its fuzzy clustering analysis in jujube orchard

Abstract

Abstract: Based on the principles of community ecology and by the method of fuzzy clustering,this paper studied the temporal and quantitative dynamics of the arthropod community and sub-community in jujube orchard(Feidong 2003),aimed to utilize natural enemy resources for pest control.There were 52 species of arthropod belonging to 47 families in the orchard.Arachnida and Cecidomyidae had a higher relative abundance than other families being 0.3465 and 0.2309,respectively.The individuals of the arthropod community were the highest on 8 June and 21 September.The total community and pests-neutral insect sub-community could be clustered into 4 clusters,respectively.For total community,the clusters (T=0.92) were those on 22 March,6 April,22 November,and on other dates,and for pests-neutral insect sub-community,they (T=0.94) were those on 22 March,6 April,8 June,and on other dates.The natural enemy sub-community could be clustered into 3 clusters (T=0.94),i.e.,those on 22 March,on 6 April,and on other dates.The results of cluster analysis partly reflected the seasonal differences of total community and sub-community,while the temporal overlaps of cluster results reflected the complexity of community structure.

Key words: Jujube orchard, Arthopod, Community structure, Temporal dynamic, Fuzzy clustering

CLC Number:

Q968.1

BI Shoudong, LIU Li, GAO Caiqiu, ZOU Yunding, CAO Chuanwang, DING Chengcheng, LI Changgen, MENG Qinglei . Arthropod community structure and its fuzzy clustering analysis in jujube orchard[J]. Chinese Journal of Applied Ecology, 2005, 16(10): 1893-1897.

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