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毒理学影响对赤子爱胜蚓(正蚓科,寡毛纲)个体生长和繁殖的种群水平后果。

Population level consequences of toxicological influences on individual growth and reproduction in Lumbricus rubellus (Lumbricidae, Oligochaeta).

作者信息

Klok C, de Roos A M

机构信息

Institute for Forestry and Nature Research (IBN-DLO), Wageningen, The Netherlands.

出版信息

Ecotoxicol Environ Saf. 1996 Mar;33(2):118-27. doi: 10.1006/eesa.1996.0015.

DOI:10.1006/eesa.1996.0015
PMID:8723748
Abstract

The effects of increased environmental concentrations of copper on the population dynamics of Lumbricus rubellus are investigated. A size-structured matrix model is used to translate sublethal effects on individual growth and reproduction into their population dynamical consequences. Laboratory data on growth and reproduction under different, sublethal conditions of copper stress are used to parameterize the model. An estimate for the critical threshold concentration of copper (critical in a sense that the population growth rate at this concentration equals zero), obtained from the model analysis, agrees well with observations on field populations of L. rubellus.

摘要

研究了环境中铜浓度增加对赤子爱胜蚓种群动态的影响。使用一个大小结构矩阵模型将对个体生长和繁殖的亚致死效应转化为其种群动态后果。利用在不同亚致死铜胁迫条件下生长和繁殖的实验室数据对模型进行参数化。从模型分析中获得的铜临界阈值浓度估计值(在该浓度下种群增长率等于零的意义上的临界值)与赤子爱胜蚓野外种群的观测结果非常吻合。

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