This dataset describes the effects of three neonicotinoid seed treatments (clothianidin, thiamethoxam and a control) applied to winter sown oilseed rape in Hungary, Germany and the UK on wild pollinators. This dataset focuses on two wild pollinator model systems, specifically the solitary bee Osmia bicornis and bumblebee Bombus terrestris. The data describes population responses in terms of reproductive cell production (O. bicornis), numbers of different developmental stages in colonies (B. terrestris) as well as the presence of neonicotinoid residues in pollen and nectar collected by both species. This research was undertaken in 2015 using funding from the Natural Environmental Research Council on an experimental platform funded by Syngenta Ltd. and Bayer CropScience.
Publication date: 2017-01-23
The same experimental design and field protocols were used at all sites. Details of the field protocol have been published on the CEH website (see online resources for link). Concentrations of the neonicotinoids within samples were quantified within the CEH analytical chemistry laboratories, accredited by UKAS to the British Standard ISO/IEC 17025: 2005. Details of the methodology have been published on the CEH website (see online resources for link).