Fuzzy cluster analysis of the cotton aphid and its predators in Chinese prickly ash orchard.
Chengzuo Zhang, Yanfen Sun, Qiang Li, Li ZhengYue, Song JiaXiong · Xi'nan nongye xuebao · 2006
In this paper,seventeen investigations were conducted on the population dynamics of cotton aphid and its predators in Chinese prickly ash orchard,and the fuzzy cluster method was used for studying the population temporal dynamics of cotton aphid and its predators of Chinese prickly ash.The population of cotton aphid could be clustered into 7 clusters(λ=0.8300).The population of predators could be clustered into 7 clusters(λ=0.8000).The results of fuzzy cluster analysis reflected that the seasonal differences of the population of cotton aphid and its predators in Chinese prickly ash orchard and the consanguineous correlation between the population temporal dynamics of cotton aphid and its predators.