Spatial distribution pattern of Oncomelania hupensis population in marshland and lake area

To explore the spatial pattern of the distribution of Oncomelania hupensis population in marshland and lake region. Four bottomlands were selected randomly for the investigation along the Qiupu River in Guichi District, Anhui Province. The quadrats were placed randomly for snail survey, and the mean...

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Published inZhongguo jishengchongxue yu jishengchongping zazhi Vol. 26; no. 1; p. 42
Main Authors Zhou, Yi-Biao, Chen, Geng-Xin, Peng, Wen-Xiang, Zhang, Zhi-Jie, Zhuang, Jian-Lin, Cui, Dao-Yong, Ni, Ying, Zhao, Gen-Ming, Wei, Jian-Guo, Jiang, Qing-Wu
Format Journal Article
LanguageChinese
Published China 28.02.2008
Subjects
Animals
China
Ecosystem
Environmental Monitoring
Fresh Water - parasitology
Population Density
Population Dynamics
Snails - growth & development
Wetlands
China
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Summary:To explore the spatial pattern of the distribution of Oncomelania hupensis population in marshland and lake region. Four bottomlands were selected randomly for the investigation along the Qiupu River in Guichi District, Anhui Province. The quadrats were placed randomly for snail survey, and the mean crowding, mean density, aggregation indices (diffusion coefficient (C), morisita index (Idelta), index of patchiness (m*/m) ), Taylor's power law and Iwao's m*-m regression index were analyzed. For 4 bottomlands in different time, the diffusion coefficients, Morisita indices, and m*/m indices were all more than one. There was a close linear relationship between the logarithm of the snail density and its variance (P < 0.01), and the correlation coefficient was 0.972. In Taylor's power law, the lg a was 0.602 and b was 1.427. There was a close linear relationship between the mean crowding (m*) and the snail density (m) (P < 0.01), and the correlation coefficient, alpha and beta was 0.984, 2.367 and 1.617 respectivel
ISSN:1000-7423