Ecology: Bumblebees and pesticides

@article{Osborne2012EcologyBA,
  title={Ecology: Bumblebees and pesticides},
  author={Juliet L. Osborne},
  journal={Nature},
  year={2012},
  volume={491},
  pages={43-45}
}
  • J. Osborne
  • Published 1 November 2012
  • Biology, Environmental Science
  • Nature
A study showing the effects of two pesticides on bumblebees highlights the need for risk assessments to consider multiple species and the complex chain of factors that determines insect exposure to chemicals. See Letter p.105 Exposure to neonicotinoid pesticides is known to influence bee behaviour, and could be a key factor in current bee declines. It has not been possible to establish a mechanistic link between individual and colony effects, but this study demonstrates a direct link between… 
Chronic impairment of bumblebee natural foraging behaviour induced by sublethal pesticide exposure
TLDR
This is the first study to provide data on the impacts of combined and individual pesticide exposure on the temporal dynamics of foraging behaviour in the field over a prolonged period of time and shows that neonicotinoid exposure has both acute and chronic effects on overall foraging activity.
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TLDR
It is reiterated that dietary exposure to neonicotinoids can impact on bumblebee colony performance and fitness and stringently incorporating chronic and sublethal side effects of pesticides, as well as interactions with common natural stressors, such as prevalent parasites, should be considered in the corresponding test guidelines.
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TLDR
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TLDR
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TLDR
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Ecological relevance in honeybee pesticide risk assessment: developing context-dependent scenarios to manage uncertainty
TLDR
The overestimation issue raised by Guez has already been addressed before and with an even greater magnitude of uncertainty, and the need to properly hierarchize uncertainties using conventional ecological scaling approaches and investigate context-dependent exposure scenarios is further underline.
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TLDR
It is concluded that short episodes of sublethal pesticide exposures during development are sufficient to trigger effects later in life and could therefore contribute to the widespread declines in bee health.
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The widespread use of systemic neonicotinoid insecticides in agriculture results first in contamination of the soil of the treated crops, and secondly in the transfer of residues to the aquatic
BEEHAVE: a systems model of honeybee colony dynamics and foraging to explore multifactorial causes of colony failure
TLDR
A honeybee model is developed, BEEHAVE, which integrates colony dynamics, population dynamics of the varroa mite, epidemiology ofvarroa‐transmitted viruses and allows foragers in an agent‐based foraging model to collect food from a representation of a spatially explicit landscape.
Side effects of imidacloprid, ethion, and hexaflumuron on adult and larvae of honey bee Apis mellifera (Hymenoptera, Apidae)
TLDR
Results indicate that imidacloprid and ethion disrupt the physiology of honey bees, thereby reducing the efficiency of this beneficial pollinator and it is important to investigate the sub-lethal effects of pesticides on larval development.
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References

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TLDR
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TLDR
Given the scale of use of neonicotinoid insecticides, it is suggested that they may be having a considerable negative impact on wild bumble bee populations across the developed world.
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TLDR
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TLDR
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TLDR
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