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The post‐registration monitoring of glyphosate‐treated plants using anecic earthworms
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Stroud, Jacqueline L. and Halsey, Kirstie (2023) The post‐registration monitoring of glyphosate‐treated plants using anecic earthworms. Annals of Applied Biology, 183 (2). pp. 141-147. doi:10.1111/aab.12838 ISSN 0003-4746.
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Official URL: https://doi.org/10.1111/aab.12838
Abstract
Glyphosate N‐(phosphonomethyl) glycine is a widely‐used herbicide in agriculture. The anecic earthworm, Lumbricus terrestris feeds and forages for surface plant materials meaning that this species has a unique and direct exposure to agrichemicals. At the recommended product rates, significantly (F1,44 = 8.67, p = .005) higher numbers of L. terrestris middens were found in the glyphosate treated areas of an arable crop field. Laboratory feeding assays using field aged plant materials indicated that previous glyphosate treatment was a statistically significant factor affecting earthworm L. terrestris biomass (F1, 12 = 5.75, p = .03). Negligible glyphosate residues were detectable, and the field aged plant materials were encrusted with fungal hyphae. This suggests that glyphosate influences the colonisation of plant material by a litter‐fungus complex which improves the food quality to earthworms. Concentrations of epoxiconazole, a fungicide, were detected in some plant materials and may influence overall food quality to earthworms. Glyphosate treatment on fresh volunteer plant leaves (unwanted crop seedlings) was not a statistically significant factor affecting earthworm L. terrestris biomass (F1, 6 = 0.16, p = .92). These results indicate fungal communities influence feeding behaviours, and plant materials are a direct source of agrichemicals to anecic earthworms.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QL Zoology S Agriculture > SB Plant culture |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||||
SWORD Depositor: | Library Publications Router | ||||||||
Library of Congress Subject Headings (LCSH): | Earthworms, Glyphosate, Pesticides, Soils | ||||||||
Journal or Publication Title: | Annals of Applied Biology | ||||||||
Publisher: | Wiley-Blackwell Publishing Ltd. | ||||||||
ISSN: | 0003-4746 | ||||||||
Official Date: | September 2023 | ||||||||
Dates: |
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Volume: | 183 | ||||||||
Number: | 2 | ||||||||
Page Range: | pp. 141-147 | ||||||||
DOI: | 10.1111/aab.12838 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 1 June 2023 | ||||||||
Date of first compliant Open Access: | 2 June 2023 | ||||||||
RIOXX Funder/Project Grant: |
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