Bumble bees and honey bee abundances collected in agricultural landscapes with and without flower strips and honey bee hives
SND-ID: 2021-285-1. Version: 1. DOI: https://doi.org/10.5878/s2bx-3j34
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Riccardo Bommarco - Swedish University of Agricultural Sciences, Ecology
Swedish University of Agricultural Sciences - Department of Ecology
Principal's reference number
Wild bee declines in agricultural landscapes have led farmers to supplement crops with honey bees. Simultaneously, environmental subsidy and conservation programmes have incentivized farmers to establish flower strips to support wild and managed pollinators. To find out if flower strips enhance, and competition from honey bees suppresses, wild bees in the landscape and across seasons, we surveyed bumble bee and honey bee abundances in 16 sites in Sweden in summer 2018 and spring 2019. The centre of each site (2 km radius) was with or without an annual flower strip, and with or without added honey bee hives. We surveyed bees in each flower strip and in linear habitats in the landscape around each site, such as field edges and road verges. In the following spring, we surveyed bumble bee queen abundance in each site. We show that adding flower strips benefits bumble bee queen abundance the following year, but this effect is diminished if honeybee hives are added. In sites with flower strips, added honey bee hives reduced male bumble bee abundance. Our relatively small flower strip areas bolstered... Show more..
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Time period(s) investigated
2018-04-01 – 2019-05-29
Data format / data structure
Department of Ecology
- Funding agency: Swedish university of agricultural sciences EkoForsk
Natural sciences (Standard för svensk indelning av forskningsämnen 2011)
Ecology (Standard för svensk indelning av forskningsämnen 2011)
Agriculture, forestry and fisheries (Standard för svensk indelning av forskningsämnen 2011)
Agricultural science (Standard för svensk indelning av forskningsämnen 2011)
Farming (INSPIRE topic categories)
Environment (INSPIRE topic categories)
Bommarco R., S.A.M. Lindström, C.A. Raderschall, V. Gagic, O. Lundin (2021). Flower strips enhance abundance of bumble bee queens and males in landscapes with few honey bee hives. Biological Conservation, 263, 109363.
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