Neonicotinoid exposure disrupts bumblebee nest behavior, social networks, and thermoregulation

Neonicotinoid pesticides can negatively affect bee colonies, but the behavioral mechanisms by which these compounds impair colony growth remain unclear. Here, we investigate imidacloprid's effects on bumblebee worker behavior within the nest, using an automated, robotic platform for continuous,...

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Veröffentlicht in:Science (American Association for the Advancement of Science) Jg. 362; H. 6415; S. 683
Hauptverfasser: Crall, James D, Switzer, Callin M, Oppenheimer, Robert L, Ford Versypt, Ashlee N, Dey, Biswadip, Brown, Andrea, Eyster, Mackay, Guérin, Claire, Pierce, Naomi E, Combes, Stacey A, de Bivort, Benjamin L
Format: Journal Article
Sprache:Englisch
Veröffentlicht: United States 09.11.2018
Schlagworte:
Animals
Bees - drug effects
Bees - physiology
Body Temperature Regulation - drug effects
Environmental Exposure
Insecticides - toxicity
Neonicotinoids - toxicity
Nesting Behavior - drug effects
Nitro Compounds - toxicity
Social Behavior
ISSN:1095-9203, 1095-9203
Online-Zugang:Weitere Angaben
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Zusammenfassung:Neonicotinoid pesticides can negatively affect bee colonies, but the behavioral mechanisms by which these compounds impair colony growth remain unclear. Here, we investigate imidacloprid's effects on bumblebee worker behavior within the nest, using an automated, robotic platform for continuous, multicolony monitoring of uniquely identified workers. We find that exposure to field-realistic levels of imidacloprid impairs nursing and alters social and spatial dynamics within nests, but that these effects vary substantially with time of day. In the field, imidacloprid impairs colony thermoregulation, including the construction of an insulating wax canopy. Our results show that neonicotinoids induce widespread disruption of within-nest worker behavior that may contribute to impaired growth, highlighting the potential of automated techniques for characterizing the multifaceted, dynamic impacts of stressors on behavior in bee colonies.
Bibliographie:ObjectType-Article-1
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ISSN:1095-9203
1095-9203
DOI:10.1126/science.aat1598