Aug 21, 2015

Pollen contaminated with field-relevant levels of cyhalothrin affects honey bee survival, nutritional physiology, and pollen consumption behavior

BioRxiv : the Preprint Server for Biology
Adam G DolezalAmy L Toth

Abstract

Honey bees are exposed to a variety of environmental stressors that impact their health, including nutritional stress, pathogens, and chemicals in the environment. In particular, there has been increasing evidence that sublethal exposure to pesticides can cause subtle, yet important effects on honey bee health and behavior. Here, we add to this body of knowledge by presenting data on bee-collected pollen containing sublethal levels of cyhalothrin, a pyrethroid insecticide, which, when fed to young honey bees, results in significant changes in lifespan, nutritional physiology, and behavior. For the first time, we show that when young, nest-aged bees are presented with pollen containing field-relevant levels of cyhalothrin, they reduce their consumption of contaminated pollen. This indicates that, at least for some chemicals, young bees are able to detect contamination in pollen and change their behavioral response, even if the contamination levels do not prevent foraging honey bees from collecting the contaminated pollen. 

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Mentioned in this Paper

Apis mellifera
Cyhalothrin
Environment
Apis mellifera preparation
Pyrethroids
Genus Apis (organism)
Health Behavior Outcomes
Nutritional Physiological Phenomena
Pollen
Chemicals

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