淮南地区屋宇生态系粉螨群落组成和多样性研究

为了调查屋宇生态系中粉螨群落的物种组成和多样性,选取屋宇生态系中4种不同环境的灰尘进行粉螨采集、分类鉴定及数据分析。结果表明,44.9%标本发现粉螨,其中床面灰尘样本粉螨的阳性率为69%,地面灰尘粉螨的阳性率为52%,衣物灰尘粉螨的阳性率为32.5%和家具灰尘粉螨的阳性率为26%,检获粉螨14种,隶属于5科11属。多样性分析结果表明,4种环境的物种丰富度指数Rmargalef为0.400~1.170,Shannon-Wiener指数(H′)为1.574~2.480,Pielou指数(J)为0.967~0.978,说明温湿度及粉螨孳生食性对不同环境中粉螨群落的组成和多样性起直接限制作用,而人类干扰也是较为重要的影响因素。

Composition and diversity of Acaroid mite community in house ecosystem of Huainan area

To investigate the composition and diversity of Acaroid mite community in the house ecosystem of Huainan area,A.mite in four different habitats were collected,isolated,and identified.The results showed that the positive rate of acaroid mites was 44.9%,which varied in different breeding places,i.e.,32.5% in bed dust,52% in floor dust,32.5% in clothing dust,and 26% in furniture dust.14 species were detected,belonging to 11 genera and 5 families.Diversity analysis suggested that the species richness index R_(margalef) for the four habitats ranged from 0.400 to 1.170,while the species diversity index(Shannon-Wiener index) ranged from 1.574 to 2.480,and Pielou index ranged from 0.967 to 0.978.Temperature,humidity and food habit were the major limiting factors determining the species composition and diversity of acaroid mite community in house ecosystem.Human disturbance also affected the species composition of acaroid mite community.