Radiofrequency electromagnetic fields reduce bumble bee visitation to flowers

Environ Pollut · 2025 · Mixed · Insufficient evidence

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MixedInsufficient evidencePaper 2598

In a blinded, two-year study using a standardized RF-EMF source at 2.4 and 5.8 GHz, no significant effect was observed on honey bee visitation rates on Salvia and Lavandula. Bumble bee visits per observation period were significantly reduced when plants were …

Study snapshot

PublicationEnviron Pollut · 2025

Study typeother

Reported directionMixed

Evidence ratingInsufficient

Abstract

Category: Environmental Science / Ecology Tags: radiofrequency, electromagnetic fields, bumble bees, pollinators, sublethal effects, flower visitation, environmental pollution DOI: 10.1016/j.envpol.2025.126836 URL: sciencedirect.com Overview Radiofrequency electromagnetic fields (RF-EMF) are now commonplace, supporting the transmission of data for television, internet, and cell phones. Concerns are growing regarding whether these anthropogenic emissions can serve as additional stressors for pollinators, possibly disrupting crucial habitats—especially in areas with advanced development. Study Purpose - Investigated whether RF-EMF affects the behavior and foraging efficiency of pollinators. - Focused on exposure to 2.4 and 5.8 GHz frequencies, reflecting common wireless communication bands. - Employed a blinded design and standardized radiation source for rigorous data collection over two years. Findings - No significant effect of RF-EMF exposure was found on honey bee visitation rates on Salvia and Lavandula plants. - There was a significant reduction in bumble bee visits per observation period when plants were exposed to RF-EMF. Conclusion - The study documents a clear link between radiofrequency electromagnetic field exposure and reductions in bumble bee visitation to flowers. - These findings highlight a potential risk to pollinator populations from RF-EMF and stress the importance of long-term and in-depth research into these environmental impacts.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeother

Effect directionmixed

Populationpollinators (honey bees and bumble bees) visiting Salvia and Lavandula plants

Sample sizeNot supplied

ExposureRF · over two years

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

Outcomes measured

honey bee visitation rates
bumble bee visits per observation period
foraging behavior/efficiency (behavioral outcomes)

Limitations

Sample size not reported in provided abstract/metadata
Exposure metrics (e.g., field strength, power density, SAR) not reported in provided abstract/metadata
Study design type (e.g., field vs. lab/mesocosm) not fully specified in provided abstract/metadata

View raw extracted JSON

{
  "study_type": "other",
  "exposure": {
    "band": "RF",
    "source": "wireless communication (2.4 and 5.8 GHz)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "over two years"
  },
  "population": "pollinators (honey bees and bumble bees) visiting Salvia and Lavandula plants",
  "sample_size": null,
  "outcomes": [
    "honey bee visitation rates",
    "bumble bee visits per observation period",
    "foraging behavior/efficiency (behavioral outcomes)"
  ],
  "main_findings": "In a blinded, two-year study using a standardized RF-EMF source at 2.4 and 5.8 GHz, no significant effect was observed on honey bee visitation rates on Salvia and Lavandula. Bumble bee visits per observation period were significantly reduced when plants were exposed to RF-EMF.",
  "effect_direction": "mixed",
  "limitations": [
    "Sample size not reported in provided abstract/metadata",
    "Exposure metrics (e.g., field strength, power density, SAR) not reported in provided abstract/metadata",
    "Study design type (e.g., field vs. lab/mesocosm) not fully specified in provided abstract/metadata"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "radiofrequency",
    "RF-EMF",
    "2.4 GHz",
    "5.8 GHz",
    "wireless communication",
    "bumble bees",
    "honey bees",
    "pollinators",
    "flower visitation",
    "sublethal effects",
    "environmental pollution"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1016/j.envpol.2025.126836
PubMed: Not supplied

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