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目的调查安徽省粮仓中粉螨群落的物种组成和多样性。方法选取禾谷类、油料类和副产品3类粮仓储藏物各150个,每个采样点各采集样本2份,每份10克,过筛后留取尘渣,进行粉螨的采集、分类、鉴定及计数以及数据分析。结果3类储藏物共检获粉螨28种,隶属于6科17属。多样性分析结果表明:3类储藏物的粉螨物种数为16～21,平均孳生密度为20.61±4.78～54.13±4.27,物种丰富度指数(Margalef指数)为1.979～2.535,多样性指数(Shannon-Wiener指数)为2.160～2.431,均匀度指数(Pielou指数)为0.763～0.816,优势度指数(Simpson指数)为0.118～0.151,相似性指数(Jaccard指数)为0.321～0.65。结论3类粮仓储藏物中粉螨的孳生密度、多样性及相似性差异较大。
Objective To investigate the species composition and diversity of acaroid mites in granary in Anhui Province. Methods 150 kinds of cereal storage products of cereals, oilseeds and by-products were collected. Two samples were collected from each sampling point, 10g each, and the residue was screened to collect, classify and identify acaroid mites And counting and data analysis. Results A total of 28 species of acaroid mites were detected in 3 types of stored products, belonging to 6 genera and 17 genera. The results of diversity analysis showed that the number of powder mite species in the three kinds of stored products was 16-21, the average breeding density was 20.61 ± 4.78-54.13 ± 4.27, and the species richness index (Margalef index) was 1.979-2.535. The diversity index (Shannon -Wiener index) was 2.160-2.431, the Pielou index was 0.763-0.816, the dominance index (Simpson index) was 0.118-0.151, and the Jaccard index was 0.321-0.65. Conclusions The density, diversity and similarity of acaroid mites in the storage of the three types of granary are quite different.