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Establishment and management of wildflower areas for insect pollinators in commercial orchards

Carvell, C., Mitschunas, N., McDonald, R., Hulmes, S., Hulmes, L., O'Connor, R. S., Garratt, M. P. D., Potts, S. G. ORCID:, Fountain, M. T., Sadykova, D., Edwards, M., Nowakowski, M., Pywell, R. F. and Redhead, J. W. (2022) Establishment and management of wildflower areas for insect pollinators in commercial orchards. Basic and Applied Ecology, 58. pp. 2-14. ISSN 1439-1791

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To link to this item DOI: 10.1016/j.baae.2021.11.001


Sown wildflower areas are increasingly recommended as an agri-environmental intervention measure, but evidence for their success is limited to particular insect groups or hampered by the challenges of establishing seed mixes and maintaining flower abundance over time. We conducted a replicated experiment to establish wildflower areas to support insect pollinators in apple orchards. Over three years, and across 23 commercial UK orchards with and without sown wildflowers, we conducted 828 transect surveys across various non-crop habitats. We found that the abundance of flower-visiting solitary bees, bumblebees, honeybees, and beetles was increased in sown wildflower areas, compared with existing non-crop habitats in control orchards, from the second year following floral establishment. Abundance of hoverflies and other non-syrphid flies was increased in wildflower areas from the first year. Beyond the effect of wildflower areas, solitary bee abundance was also positively related to levels of floral cover in other local habitats within orchards, but neither local nor wider landscape-scale context affected abundance of other studied insect taxa within study orchards. There was a change in plant community composition on the sown wildflower areas between years, and in patterns of flowering within and between years, showing a succession from unsown weedy species towards a dominance of sown species over time. We discuss how the successful establishment of sown wildflower areas and delivery of benefits for different insect taxa relies on appropriate and reactive management practices as a key component of any such agri-environment scheme.

Item Type:Article
Divisions:Life Sciences > School of Agriculture, Policy and Development > Department of Sustainable Land Management > Centre for Agri-environmental Research (CAER)
ID Code:101337


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