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Related Experiment Video

Updated: May 7, 2026

Monitoring Colony-level Effects of Sublethal Pesticide Exposure on Honey Bees

Monitoring Colony-level Effects of Sublethal Pesticide Exposure on Honey Bees

Published on: November 15, 2017

Chronic sublethal stress causes bee colony failure.

John Bryden¹, Richard J Gill, Robert A A Mitton

¹School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK.

Ecology Letters

|October 12, 2013

Summary

Sublethal stress, not lethal doses, can cause bee colony failures. Mathematical models show how this stress, combined with population density, leads to varied colony outcomes, explaining puzzling declines.

Keywords:

Environmental stressor imidacloprid mathematical model neonicotinoid pesticide pollinator decline

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Evaluating the Effect of Pesticides on the Larvae of the Solitary Bees

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Last Updated: May 7, 2026

Monitoring Colony-level Effects of Sublethal Pesticide Exposure on Honey Bees

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Empirical, Metagenomic, and Computational Techniques Illuminate the Mechanisms by which Fungicides Compromise Bee Health

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Evaluating the Effect of Pesticides on the Larvae of the Solitary Bees

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Published on: October 15, 2021

Area of Science:

Ecology
Environmental Science
Toxicology

Background:

Bee population declines are a significant environmental concern, yet the underlying causes remain unclear.
Existing research shows pathogens, parasites, and sublethal pesticide exposure in both failing and surviving bee colonies, creating a puzzling scenario.

Discussion:

This study explores how sublethal stress impacts individual bees, subsequently impairing overall colony function.
A mathematical model was developed to simulate stress effects on individual bees and predict colony dynamics.
The model demonstrates how positive density dependence can lead to diverse colony outcomes, including failure and survival.

Key Insights:

Sublethal stress, particularly from neonicotinoid pesticides, can significantly impair bumblebee colony function.
The observed dynamics of colony failure in bumblebees were accurately predicted by the developed mathematical model.
The model provides a potential explanation for the enigmatic patterns observed in bee colony failures.

Outlook:

Further research should investigate the specific mechanisms through which sublethal stressors affect bee physiology and social behavior.
Developing effective mitigation strategies for sublethal stressors is crucial for bee conservation.
This work underscores the importance of considering sublethal effects in environmental risk assessments for pesticides and other stressors.