Potential lasting impacts of industrial herbicides on ungulate nutrition
Glyphosate-based herbicides (GBH) are an effective, yet controversial, tool for reducing the survival and growth of deciduous vegetation in commercial tree plantations. While glyphosate residues can be stored in plants for over 10 years, the nutritional impacts of GBH for ungulate forage are unknown...
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crcansciencepubl:10.1139/cjfr-2021-0283 2024-04-28T07:53:51+00:00 Potential lasting impacts of industrial herbicides on ungulate nutrition Werner, Jeffery R. Wood, Lisa J. Botten, Nicole Fredeen, Art 2022 http://dx.doi.org/10.1139/cjfr-2021-0283 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfr-2021-0283 https://cdnsciencepub.com/doi/pdf/10.1139/cjfr-2021-0283 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Forest Research volume 52, issue 7, page 1098-1109 ISSN 0045-5067 1208-6037 Ecology Forestry Global and Planetary Change journal-article 2022 crcansciencepubl https://doi.org/10.1139/cjfr-2021-0283 2024-04-09T06:56:26Z Glyphosate-based herbicides (GBH) are an effective, yet controversial, tool for reducing the survival and growth of deciduous vegetation in commercial tree plantations. While glyphosate residues can be stored in plants for over 10 years, the nutritional impacts of GBH for ungulate forage are unknown. Here we compare the energy and protein content of moose ( Alces alces) food plants in central British Columbia, Canada. Willow ( Salix bebbiana), dogwood ( Cornus sericea), and fireweed ( Chamaenerion angustifolium) samples were obtained from regenerating cut blocks 1, 3, 6, and 12 years after GBH treatment and from untreated controls with identical initiation dates. We predicted that surviving plants would exhibit reduced palatability, digestibility, and nutritional value compared to controls, and that these effects would last at least 1 year before dissipating. Contrary to predictions, concentrations of digestible protein were higher in treated blocks 1 year after herbicide application, but in subsequent years there were few significant differences in protein from treated versus untreated forage. Digestible energy concentrations were identical to controls 1 year after exposure, but significant reductions were observed after 12 years. Results indicate potential nonlinear, complex, and long-lasting effects of GBH on the constituents of understory plants with implications for ungulate forage quality. Article in Journal/Newspaper Alces alces Canadian Science Publishing Canadian Journal of Forest Research |
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Canadian Science Publishing |
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Ecology Forestry Global and Planetary Change |
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Ecology Forestry Global and Planetary Change Werner, Jeffery R. Wood, Lisa J. Botten, Nicole Fredeen, Art Potential lasting impacts of industrial herbicides on ungulate nutrition |
topic_facet |
Ecology Forestry Global and Planetary Change |
description |
Glyphosate-based herbicides (GBH) are an effective, yet controversial, tool for reducing the survival and growth of deciduous vegetation in commercial tree plantations. While glyphosate residues can be stored in plants for over 10 years, the nutritional impacts of GBH for ungulate forage are unknown. Here we compare the energy and protein content of moose ( Alces alces) food plants in central British Columbia, Canada. Willow ( Salix bebbiana), dogwood ( Cornus sericea), and fireweed ( Chamaenerion angustifolium) samples were obtained from regenerating cut blocks 1, 3, 6, and 12 years after GBH treatment and from untreated controls with identical initiation dates. We predicted that surviving plants would exhibit reduced palatability, digestibility, and nutritional value compared to controls, and that these effects would last at least 1 year before dissipating. Contrary to predictions, concentrations of digestible protein were higher in treated blocks 1 year after herbicide application, but in subsequent years there were few significant differences in protein from treated versus untreated forage. Digestible energy concentrations were identical to controls 1 year after exposure, but significant reductions were observed after 12 years. Results indicate potential nonlinear, complex, and long-lasting effects of GBH on the constituents of understory plants with implications for ungulate forage quality. |
format |
Article in Journal/Newspaper |
author |
Werner, Jeffery R. Wood, Lisa J. Botten, Nicole Fredeen, Art |
author_facet |
Werner, Jeffery R. Wood, Lisa J. Botten, Nicole Fredeen, Art |
author_sort |
Werner, Jeffery R. |
title |
Potential lasting impacts of industrial herbicides on ungulate nutrition |
title_short |
Potential lasting impacts of industrial herbicides on ungulate nutrition |
title_full |
Potential lasting impacts of industrial herbicides on ungulate nutrition |
title_fullStr |
Potential lasting impacts of industrial herbicides on ungulate nutrition |
title_full_unstemmed |
Potential lasting impacts of industrial herbicides on ungulate nutrition |
title_sort |
potential lasting impacts of industrial herbicides on ungulate nutrition |
publisher |
Canadian Science Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1139/cjfr-2021-0283 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfr-2021-0283 https://cdnsciencepub.com/doi/pdf/10.1139/cjfr-2021-0283 |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
Canadian Journal of Forest Research volume 52, issue 7, page 1098-1109 ISSN 0045-5067 1208-6037 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfr-2021-0283 |
container_title |
Canadian Journal of Forest Research |
_version_ |
1797573708481560576 |