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Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Monitoring neonicotinoid exposure for bees in rural and peri-urban areas of the UK during the transition from pre- to post-moratorium
Author(s): Nicholls, Elizabeth
Botías, Cristina
Rotheray, Ellen L
Whitehorn, Penelope
David, Arthur
Fowler, Robert
David, Thomas
Feltham, Hannah
Swain, Jennifer L
Wells, Patricia
Hill, Elizabeth M
Osborne, Juliet L
Goulson, Dave
Issue Date: 28-Jun-2018
Citation: Nicholls E, Botías C, Rotheray EL, Whitehorn P, David A, Fowler R, David T, Feltham H, Swain JL, Wells P, Hill EM, Osborne JL & Goulson D (2018) Monitoring neonicotinoid exposure for bees in rural and peri-urban areas of the UK during the transition from pre- to post-moratorium (Forthcoming/Available Online). Environmental Science and Technology.
Abstract: Concerns regarding the impact of neonicotinoid exposure on bee populations recently led to an EU-wide moratorium on the use of certain neonicotinoids on flowering crops. Currently evidence regarding the impact, if any, the moratorium has had on bees’ exposure is limited. We sampled pollen and nectar from bumblebee colonies in rural and peri-urban habitats in three UK regions; Stirlingshire, Hertfordshire and Sussex. Colonies were sampled over three years; prior to the ban (2013), during the initial implementation when some seed-treated winter-sown oilseed rape was still grown (2014), and following the ban (2015). To compare species-level differences, in 2014 only, honeybee colonies in rural habitats were also sampled. Over half of all samples were found to be contaminated (n=408), with thiamethoxam being the compound detected at the highest concentrations in honeybee- (up to 2.29 ng/g in nectar in 2014, median≤0.1 ng/g, n=79) and bumblebee-collected pollen and nectar (up to 38.77 ng/g in pollen in 2013, median ≤0.12 ng/g, n=76). Honeybees were exposed to higher concentrations of neonicotinoids than bumblebees in 2014. While neonicotinoid exposure for rural bumblebees declined post-ban (2015), suggesting a positive impact of the moratorium, the risk of neonicotinoid exposure for bumblebees in peri-urban habitats remained largely the same between 2013 and 2015.
DOI Link: 10.1021/acs.est.7b06573
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Notes: Output Status: Forthcoming/Available Online

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