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Citizen science monitoring reveals links between honeybee health, pesticide exposure and seasonal availability of floral resources

Woodcock, B. A., Oliver, A. E., Newbold, L. K., Gweon, H. S. ORCID: https://orcid.org/0000-0002-6218-6301, Read, D. S., Sayed, U., Savage, J., Bacon, J., Upcott, E., Howell, K., Turvey, K., Roy, D. B., Gloria Pereira, M., Sleep, D., Greenop, A. and Pywell, R. F. (2022) Citizen science monitoring reveals links between honeybee health, pesticide exposure and seasonal availability of floral resources. Scientific Reports, 12 (1). 14331. ISSN 2045-2322

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To link to this item DOI: 10.1038/s41598-022-18672-0

Abstract/Summary

We use a national citizen science monitoring scheme to quantify how agricultural intensifcation afects honeybee diet breadth (number of plant species). To do this we used DNA metabarcoding to identify the plants present in 527 honey samples collected in 2019 across Great Britain. The species richness of forage plants was negatively correlated with arable cropping area, although this was only found early in the year when the abundance of fowering plants was more limited. Within intensively farmed areas, honeybee diets were dominated by Brassica crops (including oilseed rape). We demonstrate how the structure and complexity of honeybee foraging relationships with plants is negatively afected by the area of arable crops surrounding hives. Using information collected from the beekeepers on the incidence of an economically damaging bee disease (Deformed Wing Virus) we found that the occurrence of this disease increased where bees foraged in agricultural land where there was a high use of foliar insecticides. Understanding impacts of land use on resource availability is fundamental to assessing long-term viability of pollinator populations. These fndings highlight the importance of supporting temporally timed resources as mitigation strategies to support wider pollinator population viability.

Item Type:Article
Refereed:Yes
Divisions:Life Sciences > School of Biological Sciences > Ecology and Evolutionary Biology
ID Code:109790
Publisher:Scientific reports

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