尼可类化合物混合物改变了淡水水生无脊椎动物群体中的食用相互作用
Claire Duchet1, Fan Hou2, Cailin A Sinclair3
1Puyallup Research & Extension Center, Washington State University, Puyallup, WA 98371, USA; Institute of Entomology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, CZ-37005 České Budějovice, Czech Republic; Department of Ecosystem Biology, Faculty of Science, University of South Bohemia, Branišovská 1760, CZ-37005 České Budějovice, Czech Republic.
The Science of the total environment
|July 10, 2023
概括
水中的尼可类化合物混合物会伤害水生无脊椎动物,对食物网产生级联效应,并增加植物浮游生物. 农药混合物的环境影响往往被单次暴露研究所低估.
科学领域:
- 环境毒理学环境毒理学
- 生态毒理学 生态毒理学
- 水生生态学 水生生态学
背景情况:
- 尼可类药物是广泛使用的系统性杀虫剂.
- 在水体中的高度可能会导致非目标水生有毒性.
- 关于新烟类混合物的社区层面影响的知识有限.
研究的目的:
- 调查一种新类类化合物混合物对水生无脊椎动物的社区级影响.
- 探索在自然环境中暴露于尼可类药物的级联生态影响.
主要方法:
- 进行了一个户外中宇宙实验.
- 该实验测试了三种常见的新烟类药物 (伊米达克洛普里德,克洛西安丁,蒂亚米索克萨姆) 混合物的效果.
- 评估了对水生无脊椎动物群体的影响.
主要成果:
- 暴露于尼可类药物混合物引起了自上而下的级联效应.
- 昆虫捕食者和动物浮游生物种群受到显著影响.
- 由于混合物暴露,观察到植物浮游生物质的增加.
结论:
- 类类药物混合物可以对水生无脊椎动物群体产生复杂和级联的影响.
- 传统的单一杀虫剂毒性研究可能低估了新烟类药物的环境风险.
- 了解混合物毒性对于准确的生态风险评估至关重要.
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