2022
DOI: 10.1101/2022.07.01.498474
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Impacts and mechanisms of CO2 narcosis in bumble bees: Narcosis depends on dose, caste and mating status and is not induced by anoxia

Abstract: Carbon dioxide (CO2) is commonly used to immobilize insects and to induce reproduction in bees. However, despite its wide use and potential off-target impacts, its underlying mechanisms are not fully understood. Here we used Bombus impatiens to examine whether CO2 impacts are mediated by anoxia and whether these mechanisms differ between female castes or following mating. We examined the behavior, physiology, and gene expression of workers, mated and virgin queens following exposure to anoxia, hypoxia, full an… Show more

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