Response of macroinvertebrate communities to temporal dynamics of pesticide mixtures: A case study from the Sacramento River watershed, California

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• 作者：Ming-Chih Chiu ^{mcchiu@berkeley.edu} ; Lisa Hunt ; ^{lisahunt@berkeley.edu} ; Vincent H. Resh ^{resh@berkeley.edu}
• 关键词：Aquatic toxicity ; Streams ; Pesticides ; Macroinvertebrate communities ; SPEAR index
• 刊名：Environmental Pollution
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：219
• 期：Complete
• 页码：89-98
• 全文大小：1165 K
• 卷排序：219

文摘

The Species at Risk (SPEAR) pesticide bioassessment index was adapted for a California watershed. Spatially and temporally explicit pesticide application data were linked to changes in stream invertebrate communities. Both peak and average exposure levels were important in determining community-level responses. The composition of macroinvertebrates trended toward taxa having higher resilience and resistance to pesticide exposure. Risk-assessment efforts can be improved by considering both the short- and long-term effects of pesticide mixtures.