دورية أكاديمية
Severing Ties: Different Responses of Larval and Adult Aquatic Insects to Atrazine and Selenium.
| العنوان: | Severing Ties: Different Responses of Larval and Adult Aquatic Insects to Atrazine and Selenium. |
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| المؤلفون: | Henry BL; Department of Biology , University of South Dakota , Vermillion , South Dakota 57069 , United States., Wesner JS; Department of Biology , University of South Dakota , Vermillion , South Dakota 57069 , United States. |
| المصدر: | Environmental science & technology [Environ Sci Technol] 2018 Aug 07; Vol. 52 (15), pp. 8848-8857. Date of Electronic Publication: 2018 Jul 19. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Chemical Society Country of Publication: United States NLM ID: 0213155 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-5851 (Electronic) Linking ISSN: 0013936X NLM ISO Abbreviation: Environ Sci Technol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Washington DC : American Chemical Society Original Publication: Easton, Pa. : American Chemical Society, c1967- |
| مواضيع طبية MeSH: | Atrazine* , Selenium*, Animals ; Ecosystem ; Insecta ; Larva |
| مستخلص: | Aquatic insects link aquatic and terrestrial ecosystems through their metamorphosis and subsequent transition from water to land. Chemical stressors in freshwater, such as agricultural contaminants, can potentially disrupt insect life cycles and reduce the number of insects emerging as terrestrial adults, thereby damaging or severing this linkage. Atrazine and selenium, though frequently detected in waterways and often co-occurring, have not been previously studied together in controlled experiments. We conducted a six-week mesocosm experiment to measure the responses of larval and emerging aquatic insects to treatments of atrazine (15 μg/L), selenium (10 μg/L), and a direct combination of the two. Peak adult insect abundance was reduced in all treatments by 35% to 45% relative to the control. Further, cumulative adult emergence in the combined treatment was 33% lower than in the control. However, no reductions in primary production were observed with treatments, and consistent reductions in benthic insect abundance relative to the control were not observed until the end of the experiment, when overall abundance was low. Results suggest that adult insects are more sensitive than larval insects to atrazine and selenium and that the impacts of these contaminants are stronger on the terrestrial than the aquatic ecosystem. |
| المشرفين على المادة: | H6241UJ22B (Selenium) QJA9M5H4IM (Atrazine) |
| تواريخ الأحداث: | Date Created: 20180707 Date Completed: 20190917 Latest Revision: 20190917 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1021/acs.est.8b01791 |
| PMID: | 29979579 |
| قاعدة البيانات: | MEDLINE |
Find this issue from the American Chemical Society | تدمد: | 1520-5851 |
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| DOI: | 10.1021/acs.est.8b01791 |