宣威火腿节肢动物群落结构及动态研究

The Community Structure and Dynamics of Arthropod in Xuanwei Ham

调查4个仓库火腿节肢动物群落组成及结构的变化,应用群落特征参数、主分量分析和灰色系统分析方法分析昆虫群落特征及其在时间过程中的主导因素和时间格局以及与环境的关系。研究结果表明,火腿发酵时间的长短是影响火腿节肢动物群落结构及动态的主要因子,火腿发酵时间延长,火腿节肢动物群落多样性指数、丰富度指数及均匀度指数降低,而优势度指数和优势集中性指数则升高,主导宣威火腿节肢动物群落结构变化的主要特征指数是均匀度指数,同时多样性和丰富度在群落结构中也有较重要的作用,影响群落结构的环境因子主要是相对湿度。

The composition and structure of arthropod community in 4 ham storehouses in Xuanwei, Yunnan Province were investigated. The arthropod community characters, temporal patterns of community variation, and main factors affecting the community variation were analyzed with the community character indices, principal component analysis and gray analysis. The results showed that the length of ham fermentation time was main factor that affected ham arthropod community structure and dynamics. With the ham fermentation time prolonging, ham arthropod community diversity index, richness index and evenness index decreased, while the dominance index and advantages of centralized index increased. The main character index of leading ham arthropod community structure change was evenness index, and the diversity and richness in the community structure also played important role. The relative humidity was major environmental factor affecting ham arthropod community structure.