...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental toxicology and chemistry >Effects of Increased Temperature, Drought, and an Insecticide on Freshwater Zooplankton Communities
【24h】

Effects of Increased Temperature, Drought, and an Insecticide on Freshwater Zooplankton Communities

机译：温度，干旱和杀虫剂增加的影响淡水浮游动物社区

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the present study we performed a microcosm experiment to assess the effects of the insecticide lufenuron on zooplankton communities exposed to increased temperature and drought in (semi-)arid regions. The experiment consisted of 3 environmental scenarios, assessed in 2 parts. Firstly, we assessed how water temperature (20 and 28 degrees C) affects the sensitivity and resilience of the zooplankton community to lufenuron. Secondly, we investigated the influence of drought on the structure of the zooplankton community at a high water temperature (28 degrees C) and evaluated its possible interaction with lufenuron. The results show that the community exposed to lufenuron at 28 degrees C had a faster lufenuron-related response and recovery than the community at 20 degrees C. The combined effects of lufenuron and temperature resulted in a synergistic effect on some taxa (Daphnia sp., Cyclopoida, and Copepoda nauplii). The tested zooplankton community had a high resilience to drought, although some particular taxa were severely affected after desiccation (Calanoida). Interactions between drought and lufenuron were not statistically significant. However, rewetting after desiccation contributed to lufenuron remobilization from sediments and resulted in a slight Cyclopoida population decline at high exposure concentrations. The study shows how environmental conditions related to global change in (semi-)arid regions may influence chemical fate and the vulnerability of zooplankton communities to chemical stress. Environ Toxicol Chem 2019;38:396-411. (c) 2018 SETAC
机译：在本研究中，我们进行了微观实验，以评估杀虫剂Lufenuron对暴露于浮游动物社区的影响，暴露于（半）干旱地区的温度和干旱。实验包括3个环境情景，分为2部分。首先，我们评估了水温（20和28摄氏度）如何影响浮游动物群落的敏感性和恢复力。其次，我们调查了干旱对高水温（28℃）的浮游动物群落结构的影响，并评估其与Lufenuron的可能相互作用。结果表明，在28℃下暴露于Lufenuron的群体与20摄氏度的群体有关的Lufenuron相关的响应和恢复较快。Lufenuron和温度的组合效果导致一些分类群（Daphnia sp。， Cyperopoida和Copepoda Nauplii）。经过测试的浮游动物社区对干旱的恢复力很高，尽管在干燥后（Calanoida）后一些特殊的征草受到严重影响。干旱与旱芬龙之间的相互作用在统计学上没有统计学意义。然而，在干燥后重新润湿导致Lufenuron从沉积物中重复化并导致高曝光浓度下的轻微环偶毒性下降。该研究表明，（半）干旱地区的全球变化有关的环境条件如何影响化学命运和浮游动物社区对化学压力的脆弱性。环境毒素科学2019; 38：396-411。 （c）2018 Setac

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号