Exposure to pollen-bound pesticide mixtures induces longer-lived but less efficient honey bees

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 650, P. 1250 - 1260

Published: Sept. 8, 2018

Language: Английский

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Understanding the Effects of Sublethal Pesticide Exposure on Honey Bees: A Role for Probiotics as Mediators of Environmental Stress

Frontiers in Ecology and Evolution, Journal Year: 2020, Volume and Issue: 8

Published: Feb. 18, 2020

Managed populations of the European honey bee (Apis mellifera) support production a global food supply. This important role in modern agriculture has rendered bees vulnerable to noxious effects anthropogenic stressors such as pesticides. Although deleterious outcomes lethal pesticide exposure on health and performance are apparent, ominous sublethal is an emerging concern well. Here, we use data harvesting approach better understand toxicological across life cycle. Through compiling adult- larval-specific median dose (LD50) values from 93 published sources, LD50 estimates for insecticides, herbicides, acaricides, fungicides highly variable studies, especially herbicides fungicides, which underrepresented meta-data set. Alongside major discrepancies these reported values, further examination compiled suggested that may not be ideal metric risk assessment. We also discuss how exposure, typically measured can diminish reproduction, immunity, cognition, overall physiological functioning, leading suboptimal population reduction. In consideration actionable solutions mitigate have identified potential probiotic supplementation promising strategy easily incorporated alongside current agricultural infrastructure apicultural management practices. Probiotic regularly employed apiculture but evidence-based targeted approaches yet been fully explored within formal context. benefits, practical considerations, limitations delivery probiotics hives. Ultimately, by subverting pesticides help improve long-term survival critical pollinators.

Language: Английский

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Differential physiological effects of neonicotinoid insecticides on honey bees: A comparison between Apis mellifera and Apis cerana

Pesticide Biochemistry and Physiology, Journal Year: 2017, Volume and Issue: 140, P. 1 - 8

Published: June 21, 2017

Language: Английский

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Metal contaminant accumulation in the hive: Consequences for whole‐colony health and brood production in the honey bee (Apis mellifera L.)

Environmental Toxicology and Chemistry, Journal Year: 2015, Volume and Issue: 35(2), P. 322 - 329

Published: Oct. 8, 2015

Metal pollution has been increasing rapidly over the past century, and at same time, human population continued to rise produce contaminants that may negatively impact pollinators. Honey bees (Apis mellifera L.) forage large areas can collect from environment. The primary objective of present study was determine whether metal cadmium (Cd), copper (Cu), lead (Pb), selenium (Se) have a detrimental effect on whole-colony health in managed pollinator A. mellifera. authors isolated small nucleus colonies under cages fed them an exclusive diet sugar syrup pollen patty spiked with Cd, Cu, Pb, Se or control (no additional metal). Treatment levels were based concentrations honey contaminated hives around world. They measured including wax, honey, brood production; colony weight; survival; accumulation various life stages. Colonies treated Cd Cu contained more dead pupae within capped cells compared control, Se-treated had lower total worker weights control. Lead minimal performance, although many members hive accumulated significant quantities metal. By examining bee as social organism through assessments toxicity, found distribution toxicants throughout varied metal, some caste susceptible certain metals, colony's ability grow time reduced presence Se. Apiaries residing near metal-contaminated be risk suffer changes dynamics survival.

Language: Английский

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Behavioral responses of honey bees (Apis mellifera) to natural and synthetic xenobiotics in food

Scientific Reports, Journal Year: 2017, Volume and Issue: 7(1)

Published: Nov. 15, 2017

While the natural foods of western honey bee (Apis mellifera) contain diverse phytochemicals, in contemporary agroecosystems bees also encounter pesticides as floral tissue contaminants. Whereas some ubiquitous phytochemicals up-regulate detoxification and immunity genes, thereby benefiting nestmates, many agrochemical adversely affect health even at sublethal levels. How assess xenobiotic risk to nestmates they forage is poorly understood. Accordingly, we tested nine nectar, pollen, or propolis, well five synthetic xenobiotics that frequently contaminate hives-two herbicides (atrazine glyphosate) three fungicides (boscalid, chlorothalonil, prochloraz). In semi-field free-flight experiments, were offered a choice between paired sugar water feeders amended with either solvent only (control). Among foragers consistently preferred quercetin all concentrations tested, evidenced by both visitation frequency consumption rates. This preference may reflect long evolutionary association tissues. Of eliciting response, displayed specific for glyphosate chlorothalonil. paradoxical account which these occur hive contaminants suggests present greater factor than previously suspected.

Language: Английский

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