Multi-scale availability of neonicotinoid-treated seed for wildlife in an agricultural landscape during spring planting. Roy, C., L., Coy, P., L., Chen, D., Ponder, J., & Jankowski, M. Science of the Total Environment, 682:271-281, Elsevier B.V., 2019. ![Multi-scale availability of neonicotinoid-treated seed for wildlife in an agricultural landscape during spring planting [link]](https://bibbase.org/img/filetypes/link.svg "link")
Website abstract bibtex Neonicotinoid pesticides are applied to seeds and are known to cause lethal and sub-lethal effects in birds and mammals. Neonicotinoid-treated seeds could be available to wildlife through spillage or exposed seeds near or at the soil surface due to incomplete or shallow drilling. We quantified seed spills that may occur during loading or refilling the hopper at a landscape-scale using road-based surveys. We also quantified undrilled seeds in 1-m2 frames on the soil in the center and corner of fields to obtain estimates at the field scale. We broadcast seeds on the soil surface of a tilled field and left them for 0, 1, 2, 4, 8, 16, and 30 days to quantify the decrease of neonicotinoids under field conditions. Lastly, we documented wildlife at neonicotinoid-treated seed spills with trail cameras. We estimated the number of spills during planting to be 3496 (95% CI: 1855–5138) and 2609 (95% CI: 862–4357) for corn, 11,009 (95% CI: 6950–15,067) and 21,105 (95% CI: 6162–36,048) for soybean, and 830 (95% CI: 160–1500) and 791 (95% CI: 0–1781) for wheat in 2016 and 2017, respectively. Exposed seeds were present at the soil surface in 35% of 71 fields. The probability that seeds were present on the soil surface was higher for soybeans (18.8 and 49.4% in the center and corners, respectively) than for corn (1.6 and 2.7%, respectively), and seed densities were also higher (1.04 vs 0.07 seeds/m2, respectively). Neonicotinoids decreased rapidly on seeds on the soil surface but persisted as long as 30 days. Over a dozen species of birds and mammals consumed seeds at simulated spills, with an average time for birds to find spills of 1.3 ± 1.5 days and an average time to consumption of 4.1 ± 3.4 days. Seeds are abundant on the soil surface for wildlife to consume during the spring planting season and should be considered in pesticide risk assessments.
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title = {Multi-scale availability of neonicotinoid-treated seed for wildlife in an agricultural landscape during spring planting},
type = {article},
year = {2019},
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publisher = {Elsevier B.V.},
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abstract = {Neonicotinoid pesticides are applied to seeds and are known to cause lethal and sub-lethal effects in birds and mammals. Neonicotinoid-treated seeds could be available to wildlife through spillage or exposed seeds near or at the soil surface due to incomplete or shallow drilling. We quantified seed spills that may occur during loading or refilling the hopper at a landscape-scale using road-based surveys. We also quantified undrilled seeds in 1-m2 frames on the soil in the center and corner of fields to obtain estimates at the field scale. We broadcast seeds on the soil surface of a tilled field and left them for 0, 1, 2, 4, 8, 16, and 30 days to quantify the decrease of neonicotinoids under field conditions. Lastly, we documented wildlife at neonicotinoid-treated seed spills with trail cameras. We estimated the number of spills during planting to be 3496 (95% CI: 1855–5138) and 2609 (95% CI: 862–4357) for corn, 11,009 (95% CI: 6950–15,067) and 21,105 (95% CI: 6162–36,048) for soybean, and 830 (95% CI: 160–1500) and 791 (95% CI: 0–1781) for wheat in 2016 and 2017, respectively. Exposed seeds were present at the soil surface in 35% of 71 fields. The probability that seeds were present on the soil surface was higher for soybeans (18.8 and 49.4% in the center and corners, respectively) than for corn (1.6 and 2.7%, respectively), and seed densities were also higher (1.04 vs 0.07 seeds/m2, respectively). Neonicotinoids decreased rapidly on seeds on the soil surface but persisted as long as 30 days. Over a dozen species of birds and mammals consumed seeds at simulated spills, with an average time for birds to find spills of 1.3 ± 1.5 days and an average time to consumption of 4.1 ± 3.4 days. Seeds are abundant on the soil surface for wildlife to consume during the spring planting season and should be considered in pesticide risk assessments.},
bibtype = {article},
author = {Roy, Charlotte L. and Coy, Pamela L. and Chen, Da and Ponder, Julia and Jankowski, Mark},
journal = {Science of the Total Environment}
}
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Neonicotinoid-treated seeds could be available to wildlife through spillage or exposed seeds near or at the soil surface due to incomplete or shallow drilling. We quantified seed spills that may occur during loading or refilling the hopper at a landscape-scale using road-based surveys. We also quantified undrilled seeds in 1-m2 frames on the soil in the center and corner of fields to obtain estimates at the field scale. We broadcast seeds on the soil surface of a tilled field and left them for 0, 1, 2, 4, 8, 16, and 30 days to quantify the decrease of neonicotinoids under field conditions. Lastly, we documented wildlife at neonicotinoid-treated seed spills with trail cameras. We estimated the number of spills during planting to be 3496 (95% CI: 1855–5138) and 2609 (95% CI: 862–4357) for corn, 11,009 (95% CI: 6950–15,067) and 21,105 (95% CI: 6162–36,048) for soybean, and 830 (95% CI: 160–1500) and 791 (95% CI: 0–1781) for wheat in 2016 and 2017, respectively. 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