Sub-lethal effects of six neonicotinoids on avoidance behavior and reproduction of earthworms (Eisenia fetida)

文献类型： 外文期刊

第一作者： Ge, Jing

作者： Ge, Jing;Yu, Xiangyang;Ge, Jing;Xiao, Yuanzhuo;Chai, Yangyang;Yan, Haijuan;Wu, Ruohan;Xin, Xing;Wang, Donglan;Yu, Xiangyang

作者机构：

关键词： Neonicotinoids; Eisenia fetida; Avoidance behavior; Chronic toxicity; Reproduction

期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.291； 五年影响因子：6.393 ）

ISSN： 0147-6513

年卷期： 2018 年 162 卷

页码：

收录情况： SCI

摘要： Avoidance behavior of earthworms (Eisenia fetida) against six neonicotinoids (NEOs) (acetamiprid, dinotefuram, clothianidin, thiacloprid, nitenpyram, imidacloprid) was studied following the protocol of ISO. The results showed obvious avoidance behavior of E. fetida against the tested insecticides, and the medium effective concentration for avoidance behavior (EC50) of the six pesticides was 0.14, 0.55, 0.91, 7.87, 1.32 and 0.77 mg/kg, respectively. Compared to the acute toxicity, avoidance behavior was more sensitive as an indicator of soil contamination with NEOs. Chronic toxicity of above six NEOs to E. fetida was also evaluated; cocoon production, hatchability, cocoon weight and adult weight were all affected in the test. Cocoon production and hatchability were more sensitive than cocoon weight and adult weight. The reproduction of earthworms were significantly reduced with a 56 d half-maximal effective hatchability concentration (EC50) of 0.37, 0.74, 1.30, 3.57, 1.20 and 0.70 mg/kg (acetamiprid, dinotefuram, clothianidin, thiacloprid, nitenpyram, imidacloprid), respectively. Most of the tested NEOs were highly toxic to E. fetida. Avoidance behavior and reproduction damage of E. fetida was observed at very low concentrations. The existing levels of pollution with NEOs in soil frequently exceed the lowest observed adverse effect concentrations, which are likely to have negative biological and ecological impacts on earthworms.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序