A Common Pesticide Decreases Foraging Success and Survival in Honey Bees

  title={A Common Pesticide Decreases Foraging Success and Survival in Honey Bees},
  author={Micka{\"e}l Henry and Maxime B{\'e}guin and Fabrice Requier and Orianne Rollin and Jean-François Odoux and Pierrick Aupinel and Jean Aptel and Sylvie Tchamitchian and Axel Decourtye},
  pages={348 - 350}
Bad News for Bees Neonicotinoid insecticides were introduced in the early 1990s and have become one of the most widely used crop pesticides in the world. These compounds act on the insect central nervous system, and they have been shown to be persistent in the environment and in plant tissues. Recently, there have been controversial connections made between neonicotinoids and pollinator deaths, but the mechanisms underlying these potential deaths have remained unknown. Whitehorn et al. (p. 351… 

Sub-lethal effects of dietary neonicotinoid insecticide exposure on honey bee queen fecundity and colony development

Adverse effects of imidacloprid on queen bee fecundity and behavior are shown for the first time and risk-mitigation efforts should focus on reducing neonicotinoid exposure in the early spring when colonies are smallest and queens are most vulnerable to exposure.

Bees prefer foods containing neonicotinoid pesticides

This work shows that bees cannot control their exposure to neonicotinoids in food and implies that treating flowering crops with IMD and TMX presents a sizeable hazard to foraging bees.

Queens become workers: pesticides alter caste differentiation in bees

In vitro-reared queens of a neotropical social bee species (Plebeia droryana) showed high larval mortality after exposure to an organophosphate pesticide (chlorpyrifos) via larval food, and most of the surviving larvae that were destined to develop into queens became workers more likely because they ate less food than expected without pesticide skewing thus caste differentiation in this bee species.

Honey Bees' Behavior Is Impaired by Chronic Exposure to the Neonicotinoid Thiacloprid in the Field.

Thiacloprid, a widely used cyano-substituted neonicotinoid thought to be less toxic to honey bees and of which use has increased in the last years, is presented for the first time.

Country-specific effects of neonicotinoid pesticides on honey bees and wild bees

Findings point to neonicotinoids causing a reduced capacity of bee species to establish new populations in the year following exposure, and negatively affect pollinator health under realistic agricultural conditions.

Neonicotinoid insecticides in pollen, honey and adult bees in colonies of the European honey bee (Apis mellifera L.) in Egypt

For non-lethal exposure there was significant risk at the worst case to brood bees but actual exposure effects are dependant upon the genetics and conditions of the Egyptian honeybee subspecies that remain to be determined.

Neonicotinoid pesticides can reduce honeybee colony genetic diversity

As decreased genetic diversity among worker bees is known to negatively affect colony vitality, neonicotinoids may have a cryptic effect on colony health by reducing the mating frequency of queens.

Exposure to neonicotinoids influences the motor function of adult worker honeybees

It is illustrated that 24 h exposure to sublethal doses of neonicotinoid pesticides has a subtle influence on bee behaviour that is likely to affect normal function in a field setting.

Imidacloprid Alters Foraging and Decreases Bee Avoidance of Predators

The results suggest that the effects of neonicotinoids on honey bee decision-making and other advanced cognitive functions should be explored and research should extend beyond the classic model, the European honey bee, to other important bee species.



Multiple Routes of Pesticide Exposure for Honey Bees Living Near Agricultural Fields

The results demonstrate that bees are exposed to neonicotinoid compounds and several other agricultural pesticides in several ways throughout the foraging period, and clarify some of the mechanisms by which honey bees may be exposed to agricultural pesticides throughout the growing season.

Modes of honeybees exposure to systemic insecticides: estimated amounts of contaminated pollen and nectar consumed by different categories of bees

Estimates for modes of honeybees exposure to systemic insecticides by estimating their pollen and nectar consumption are given for larvae and for the categories of adults which consume the highest amounts of - pollen, the nurse bees, and - nectar.

High Levels of Miticides and Agrochemicals in North American Apiaries: Implications for Honey Bee Health

A broad survey of pesticide residues was conducted on samples from migratory and other beekeepers across 23 states, one Canadian province and several agricultural cropping systems during the 2007–08 growing seasons, finding 121 different pesticides and metabolites within 887 wax, pollen, bee and associated hive samples.

A Method to Quantify and Analyze the Foraging Activity of Honey Bees: Relevance to the Sublethal Effects Induced by Systemic Insecticides

A protocol was devised, which provided intermediate conditions between field and laboratory conditions, that allowed the quantification, with an enhanced level of sensitivity, of sublethal effects on foraging bees.

Interactions between Nosema microspores and a neonicotinoid weaken honeybees (Apis mellifera)

It is demonstrated that the interaction between the microsporidia Nosema and a neonicotinoid (imidacloprid) significantly weakened honeybees, providing the first evidences that interaction between an infectious organism and a chemical can also threaten pollinators.

Honeybee foraging in differentially structured landscapes

An understanding of how human landscape modification may change the evolutionary significance of bee dances and ecological interactions, such as pollination and competition between honeybees and other bee species is facilitated.

RFID Tracking of Sublethal Effects of Two Neonicotinoid Insecticides on the Foraging Behavior of Apis mellifera

This study demonstrates that the RFID-method is an effective way to record short-term alterations in foraging activity after insecticides have been administered once, orally, to individual bees.

Mortality rates of honey bees in the wild

  • R. Dukas
  • Environmental Science
    Insectes Sociaux
  • 2008
Testing for the effects of senescence on honey bees foraging in natural settings and documenting the predicted pattern of exponential increase in mortality rate with forager age indicate that, in spite of high rates of external mortality, senescent decline is an important factor determining the performance of insects such as honey bees in the wild.

The sublethal effects of pesticides on beneficial arthropods.

The different types of sublethal effects on beneficial arthropods, focusing mainly on honey bees and natural enemies, are characterized, and the methods used in these studies are described.

Spatial scale of insect‐mediated pollen dispersal in oilseed rape in an open agricultural landscape

This study provides clear evidence that a large variety of insect species can transfer viable pollen between OSR plants over considerable distances, and provides valuable data to improve models of pollen dispersal for entomophilous crops at the landscape scale.