Study: Honeybees Bump Wild Pollinators From Flowers — SkimNews
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- Anglia Ruskin University researchers documented 300 interactions among five pollinator groups on bramble and ivy in Cambridgeshire, finding honeybees won most encounters by displacing or chasing off rivals in roughly 20% of cases.
- The study provides evidence of "interference competition" — a direct form of rivalry where honeybees physically push others away — beyond the previously documented indirect resource depletion, lead author Victoria Buckle said.
- Wild pollinators actively avoided honeybees in 28.4% of interactions on bramble and 35.6% on ivy, and areas with higher honeybee concentrations had fewer bumblebees, solitary bees and hoverflies.
- Bumblebees were also seen bumping other pollinators off flowers, but Buckle characterized it as likely accidental — a side-effect of "bumbling" flight in tight spaces — whereas honeybee aggression was overt and targeted.
- The ivy bee, first recorded in the UK in 2001, was the only pollinator observed displacing and chasing honeybees rather than the reverse.
- Competitive interactions increased at higher temperatures, which the authors linked to nectar drying up — a concern given UK summer temperatures are projected to rise by up to 4°C by 2080.
- The National Bee Unit reported registered UK beekeepers more than doubled from 19,000 in 2010 to 47,000 in 2025, fueling concerns that hobby beekeeping intensifies competition with wild pollinators.
Why it matters: With UK registered beekeepers more than doubling from 19,000 in 2010 to 47,000 in 2025, the boom in hobby hives is intensifying direct, aggressive competition with wild pollinators just as climate-driven heat stress is escalating flower-visitor clashes. The finding reframes "save the bees" campaigns: conservation planning must now treat managed honeybees as active aggressors, not just passive resource competitors.
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