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Data from: Chlorpyrifos interacts with other agricultural stressors to alter stream communities in laboratory microcosms Chara-Serna, Ana M.; Richardson, John S.
Description
<b>Abstract</b><br/>Chlorpyrifos is one of the most widely used agricultural insecticides in the world, but to date there is limited empirical information about its potential to interact with other common agricultural stressors. We conducted a 15-day, community-level microcosm experiment evaluating individual and combined effects of chlorpyrifos, nutrient enrichment, and sedimentation on stream invertebrate communities (abundance, biomass, richness, size structure, composition) and ecosystem processes (primary productivity and leaf decomposition). We found that sedimentation was the most detrimental stressor, with significant negative impacts on most invertebrate community and ecosystem function variables. Even though chlorpyrifos did not cause significant invertebrate mortality in the microcosms, it still altered ecosystem function by lowering leaf decomposition rates, probably through sublethal inhibition of invertebrate shredders. Furthermore, we observed a significant reversal interaction between chlorpyrifos and sediment for small-sized invertebrates collected in gravel (abundance in sediment x insecticide microcosms was 2.4 times lower than predicted by additivity), as well as an antagonistic interaction with nutrients on invertebrate richness in the same microhabitat (richness in nutrient x insecticide microcosms was 1.6 times higher than predicted by additivity). Our results suggest that chlorpyrifos has the potential to alter freshwater ecosystem function and interact non-additively with other common agricultural stressors. These findings are in keeping with a growing body of research highlighting that multiple stressor interactions and ecosystem processes should be considered when evaluating the impacts of organic toxicants on freshwater ecosystems.; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Invertebrate community response variables</h4><div class="o-metadata__file-name">invertebrate_metrics.xlsx</br></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Functional response variables</h4><div class="o-metadata__file-name">function_metrics.xlsx</br></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Water quality parameters</h4><div class="o-metadata__file-name">water_quality.xlsx</br></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Nutrient concentration</h4><div class="o-metadata__file-name">nutrients.xlsx</br></div></div>
Item Metadata
| Title |
Data from: Chlorpyrifos interacts with other agricultural stressors to alter stream communities in laboratory microcosms
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| Creator | |
| Date Issued |
2021-05-19
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| Description |
<b>Abstract</b><br/>Chlorpyrifos is one of the most widely used agricultural insecticides in the world, but to date there is limited empirical information about its potential to interact with other common agricultural stressors. We conducted a 15-day, community-level microcosm experiment evaluating individual and combined effects of chlorpyrifos, nutrient enrichment, and sedimentation on stream invertebrate communities (abundance, biomass, richness, size structure, composition) and ecosystem processes (primary productivity and leaf decomposition). We found that sedimentation was the most detrimental stressor, with significant negative impacts on most invertebrate community and ecosystem function variables. Even though chlorpyrifos did not cause significant invertebrate mortality in the microcosms, it still altered ecosystem function by lowering leaf decomposition rates, probably through sublethal inhibition of invertebrate shredders. Furthermore, we observed a significant reversal interaction between chlorpyrifos and sediment for small-sized invertebrates collected in gravel (abundance in sediment x insecticide microcosms was 2.4 times lower than predicted by additivity), as well as an antagonistic interaction with nutrients on invertebrate richness in the same microhabitat (richness in nutrient x insecticide microcosms was 1.6 times higher than predicted by additivity). Our results suggest that chlorpyrifos has the potential to alter freshwater ecosystem function and interact non-additively with other common agricultural stressors. These findings are in keeping with a growing body of research highlighting that multiple stressor interactions and ecosystem processes should be considered when evaluating the impacts of organic toxicants on freshwater ecosystems.; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Invertebrate community response variables</h4><div class="o-metadata__file-name">invertebrate_metrics.xlsx</br></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Functional response variables</h4><div class="o-metadata__file-name">function_metrics.xlsx</br></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Water quality parameters</h4><div class="o-metadata__file-name">water_quality.xlsx</br></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Nutrient concentration</h4><div class="o-metadata__file-name">nutrients.xlsx</br></div></div>
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| Notes |
Dryad version number: 1</p> Version status: submitted</p> Dryad curation status: Published</p> Sharing link: https://datadryad.org/stash/share/THw_8cVn6TC4z0P9QItQrCBWJ-A990yqKOr-70kL6lY</p> Storage size: 94130</p> Visibility: public</p> |
| Date Available |
2020-06-24
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| Provider |
University of British Columbia Library
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| License |
CC0 1.0
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| DOI |
10.14288/1.0397685
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| URI | |
| Publisher DOI | |
| Rights URI | |
| Aggregated Source Repository |
Dataverse
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CC0 1.0