Characteristics,dynamics and niche of insect community in plum orchard

Abstract

Abstract: The insect community in plum orchard was investigated on organization level and temporal-spatial niche.The results showed that the insect community was abundant,which included 6 orders,23 families.The individuals of species,diversity indices,and evenness increased with time.Myzus persicae and Asiaarposina sasokii had the widest spatial niche breadth,while Didesmococcus koreauus borchs had the widest temporal niche breadth.Among the natural enemies,Chilocorus rubidus had the widest both temporal and spatial niche breadth.The niche of Chicocorus rubidus and Didesmococcus koreauus overlapped larger than that of the others,which indicated their synchrony in temporal dimension and their similarity in spatial dimension.As the dominant natural enemies,the two populations should be protected and utilized to control plum pest.

Key words: Insect community, Diversity, Evenness, Dominance, Niche, Plum orchard

CLC Number:

S436.6

HUANG Baohong, ZOU Yunding, BI Shoudong, LI Hengkui, ZHU Qiaoli . Characteristics,dynamics and niche of insect community in plum orchard[J]. Chinese Journal of Applied Ecology, 2005, 16(2): 307-312.

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