In 2014,the species diversity index,evenness index and dominance index were used to analyze the insect community structure and temporal dynamics in the vegetable garden in Jinning county,Kunming.A total of 43442 insect samples were collected and the insects belonged to 8 orders,23 taxa,which included 13 phytophagous taxa,4 parasitic taxa and 2 others taxa.Liriomyza,Muscidae,Chalcididae and Braconidae were the dominant species,accounting for 32.94％,19.52％,17.63％ and 4.78％ of the total samples,respectively.Population peak of Liriomyza was March-April and October-November;population peak of Chalcididae was April-May;Population peak of Braconidae was April-May and July-November;The diversity index and evenness index reached peak in July,the maximum was 2.327 and 0.7421,respectively,while the minimum in March was 0.9376 and 0.2992,respectively.The variation range of dominant concentration index was 0.1279-0.5005,the maximum was in March and the minimum was in June.Ss/Si (the number of species divided by the number of individuals) was between 0.0011 and 0.1176,Sn/Sp (the number of natural enemy species divided by the number of phytophagous species) was between 0.4000 and 0.7000.Value of Ss/Si and Sn/Sp indicated that the stability of insect community structure was worse.The structure of insect community was moderately different in January and April-November,but moderately similar or very similar in other months.
vegetable gardenstructure of insect communitytemporal dynamics
国家科技期刊平台
NSTL
万方数据
维普
