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对1999年5月2日和2003年5月1日木槿树节肢动物群落进行调查和分析。结果表明,2003年5月1日的物种丰富度大于1999年5月2日,涉及的分类阶元数前者多于后者;2年间的优势集中性指数、多样性指数、相对丰盛度指数和均匀度指数均略有差异;2年以株为单位,各株4个方位的棉蚜分布格局均为聚集分布;2年以5株总计,4个方位的棉蚜分布趋势也是聚集分布;2年以株为单位的棉蚜水平分布均为聚集格局,但2年间棉蚜数量差异极显著。
The arthropod community of hibiscus tree was surveyed and analyzed on May 2, 1999 and May 1, 2003. The results showed that the species richness of May 1, 2003 was greater than that of May 2, 1999, and the former was more than the latter. The dominant concentration index, diversity index, relative abundance index and Evenness index of cotton aphid were slightly different. The cotton aphid distribution pattern of 4 azimuths of each strain was aggregated distribution in 2 years; the distribution trend of cotton aphid in 5 azimuthal and 4 azimuthal directions in 2 years was also aggregated; 2 The annual distribution of cotton aphid in the unit was aggregated, but the difference of cotton aphid in two years was extremely significant.