Articles tagged with Honey
Honey bee researchers found that foragers prefer sugar syrup laced with the fungicide chlorothalonil over a control at low concentrations, but avoid it at higher doses. The unexpected finding highlights the complex relationship between honey bees and environmental toxins.
A large-scale study has found that residue levels in pollen and nectar from thiamethoxam-treated seeds do not harm bees, with no effect on colony survival. The research involved individual honey bees and 84 colonies, providing a robust threshold for assessing potential risk.
Africanized honey bees, which are more docile than other so-called 'killer bees', retain most of their African heritage but have shifted genetic traits towards European honey bees. This rapid evolution likely occurred due to living on a densely populated island where humans eradicated aggressive bees, favoring the gentler counterparts.
Researchers at UC San Diego have developed a solution to control Asian hornets by luring males with synthesized sex pheromones, providing a simple and reliable way to monitor and potentially reduce populations. The study's findings demonstrate the key role of pheromones in long-distance attraction for these invasive insects.
A global sampling of honey found 75% contaminated with neonicotinoid pesticides, a key factor in the global decline of pollinators, particularly bees. The study's findings suggest that chronic exposure to these pesticides may have detrimental effects on bee populations.
A German Federal Institute for Risk Assessment study found that people perceive synthetic substances and heavy metals as greater health risks than natural contaminants like mercury and dioxin. Awareness about lesser-known contaminants like pyrrolizidine alkaloids and arsenic is low, particularly among younger populations.
Researchers predict potential for rapid colonization of UK by Asian hornet, threatening honey bee and beneficial insect populations. Beekeepers and public advised to be vigilant in identifying nests and reporting sightings to halt destruction of bee populations.
Researchers found that genes closely associated with autism in humans are regulated differently in unresponsive honey bees than their more responsive nest mates. The study reveals unique parallels between the behavior of these unresponsive bees and those with autism.
Researchers found that probiotics can improve immunity in fruit flies exposed to pesticides, a common model for studying honey bee effects. This mechanism could lead to improved survival rates for honey bees exposed to pesticide toxins, with potential benefits for agriculture and human health.
Researchers found distinct genetic variations in mountain and savannah honey bees that help them adapt to high altitudes. The study reveals a shared evolutionary history between the two sub-species.
Researchers find that Varroa mite populations are growing and spreading in managed bee colonies due to close proximity and lack of swarming. The study suggests new integrated pest management strategies are needed to control the migratory pest.
Agricultural production improves hive health by providing adequate food resources and nectar yields, outweighing pesticide risks. Bees in agricultural areas had better colony thermoregulation and higher brood production than those in non-agricultural environments.
Researchers found that neonicotinoid pesticide thiamethoxam impairs honey bee flight ability, affecting their ability to collect food and pollinate crops. Long-term exposure can be fatal, while short-term exposure increases activity levels but decreases accuracy of flight.
A research scientist at CSIC has discovered that wax worms can quickly biodegrade polyethylene, a material difficult to break down. The worm's ability is attributed to its similarity in composition to beeswax and may involve an enzyme-based mechanism.
A new study suggests that human activity is driving the spread of honey bee pathogens, leading to colony losses. The research argues for collective actions to mitigate this issue, including stronger regulations and increased education among beekeepers.
Research reveals that honey bees can see objects as small as 1.9°, 30% better than previously recorded, and detect smaller details, improving navigation and survival. This discovery has implications for understanding insect vision and could aid in designing bio-inspired robotics.
A recent study reveals that rearranging nest boxes increases the return of blue orchard bees to managed sites, leading to higher nesting success and potential for sustainable commercial pollination. The experiment found a uniform nest-box distribution resulted in significantly higher nesting by all three factors measured.
New research finds that commonly used fungicides in almond orchards can be harmful to honey bees, leading to a significant reduction in their survival rate. The study's findings suggest that bees may face danger from chemical applications even when responsibly applied.
A study by Ohio State University researchers found that honey bees favor agricultural areas over urban neighborhoods for nectar and pollen. The discovery suggests that farmland can be a superior source of food for honey bees, contradicting the assumption that urban areas are more attractive to them.
An international team of researchers identified a core set of genes involved in honey bee responses to viruses and parasites. The findings provide new possibilities for breeding more resilient honey bee stocks and understanding pathogen interactions with other insects.
The genome of the parasitic mite Tropilaelaps mercedesae has been sequenced to better understand its interaction with honey bees and develop effective control strategies. The study revealed specific features in the mite genome shaped by its parasitic life history, highlighting the need for new targets in controlling the mites.
A new study from researchers at UC Davis and UC Berkeley reveals the population structure of honey bees in California, shedding light on their origins. The research combines large databases to provide a comprehensive sampling of honey bees across Africa, the Middle East, and Europe.
A new study from Tufts University reveals that honey bees fine-tune their nutrient-seeking behavior based on the seasonality of their floral diet. Bees forage for minerals like calcium, magnesium, and potassium in water sources that reflect what's lacking in their pollen-based diet.
A recent study found that no single protein in royal jelly determines a honeybee's queen development. Instead, the nutrient mix is essential for larval growth and caste determination. The researchers' experiments produced intercastes with characteristics of both workers and queens.
A study found that multiple pesticides within colonies closely correlate with colony death, including some 'bee-safe' fungicides. The researchers assessed 91 colonies and found that the number of different compounds was highly predictive of colony death.
Researchers have discovered a fluid behaving like water when trapped in a nanocage of a porous solid, offering new insights into nanoscale behavior. This breakthrough may lead to the design of machines with specific functions, including medical applications and molecular electronics.
A study by University of Nebraska-Lincoln researchers found that exposure to imidacloprid, a popular insecticide, significantly reduces the number of eggs laid by queen bees. This impairment can lead to colony decline and death, highlighting the need for beekeepers to take precautions when using neonicotinoids.
Researchers found that flowers are a hot spot for bacterial transmission to wild bees, with multiple flower and bee species sharing the same types of bacteria. This discovery highlights the importance of understanding wild bees as an alternative pollination option due to declining honey bee populations.
Research from North Carolina State University shows that traveling honey bees have shorter lives and greater oxidative stress levels than stationary bees. Access to readily available food or supplemental nutrition can mitigate these negative impacts, particularly during periods of high flower scarcity.
Honey bees can manipulate the shape of their abdomens by curling in one direction due to asymmetrical membranes connecting abdominal segments. This unique movement is made possible by a thin, flexible layer of cells called the folded intersegmental membrane (FIM), allowing each segment to slide into the next one.
A study confirms a rare case of mutualism between humans and a wild animal, the Yao tribe's use of a distinct call to attract a bird species as a honeyguide resulting in 75% successful discovery of beehives. Researchers found that the 'brrr-hm' call increased the probability of being guided by a honeyguide from 33% to 66%.
Research reveals that humans use special calls to recruit wild birds, while honeyguides actively recruit appropriate human partners. This unique collaboration allows both species to access valuable resources.
Researchers discovered that water collector bees respond to thirsty nest mates' begging, increasing their water-bearing activity. The team found that the hive stabilized its temperature at 40°C by controlling its water intake.
A new study published in PLOS Computational Biology found that genes involved in cellular remodeling are conserved across honey bees and mammals, suggesting a common origin for social behavior. These findings provide insight into the evolution of complex sociality in animals.
The US saw a significant loss of honey bee colonies, with commercial and small-scale beekeepers losing 44.1% of their colonies over the course of the year. The main cause of these losses is the varroa mite, which can easily spread between colonies.
Researchers found high levels of varroa mites and fungal parasites, with severe correlations to viral diseases like Chronic Bee Paralysis Virus. The study provides crucial baseline data for tracking future trends in honey bee health.
New research reveals honey bee colonies adapt their diet to counter nutritional deficiencies, prioritizing diets that complement specific amino acid deficiencies. This ability allows bees to maintain a balanced nutrition level when alternative floral resources are scarce.
Researchers from Arizona State University discovered that short-term starvation in larval stage makes adult honey bees more resilient to starvation. This finding suggests a predictive adaptive response, similar to solitary organisms, which could help solve the problem of colony collapse disorder.
Researchers found that Asian honey bees produce different types of vibrational stop signals when attacked by giant hornets, which vary depending on the level of danger and context. These signals can inhibit recruitment to dangerous food sources or alert nestmates to imminent threats.
Researchers used three long-term datasets to analyze honey bee population trends, identifying the USDA Census of Agriculture as the most accurate dataset for measuring changes in abundance. However, they acknowledged limitations of the data, including lack of information on colony usage and losses.
Researchers used DNA sequencing and a supercomputer to analyze pollen from beehives, identifying key plants bees rely on. The multi-locus metabarcoding approach provides quantitative measurements of plant proportions, helping to enhance landscapes and sustain robust bee populations.
Researchers found that urban areas have higher pathogen abundance and lower honey bee survival rates compared to rural environments. The study suggests that increased transmission rates in urban areas may be the primary cause of this effect.
A study by the USGS found that native bees are exposed to neonicotinoid insecticides and other pesticides, particularly in agricultural fields and grasslands. The presence of these pesticides can harm bee populations and reproductive success.
Researchers at Aarhus University have created a model that groups the incidence of viral infections into four categories, allowing beekeepers to easily assess the severity of infections. This simplified system benefits both scientists and beekeepers, enabling them to make informed decisions about disease prevention and breeding.
Researchers tested 42 pesticides in a realistic field setting, finding that glyphosate and acetamiprid showed little to no toxicity to honey bees. This study suggests these pesticides could be effective alternatives to other, more toxic options.
Researchers have found that more than 60 percent of the foraging honey bees in San Diego County are Africanized, and that Africanized bees can now be found as far north as California's delta region. The study suggests that the northward expansion of Africanized bees in California is consistent with patterns previously documented in Texas.
A study at the University of Illinois identified p-coumaric acid as a key factor in determining honey bee caste. The research found that larvae fed with beebread and honey containing p-coumaric acid undergo changes in gene expression, shifting them away from queen development.
A new study from Harvard T.H. Chan School of Public Health finds that over 70% of pollen and honey samples collected from foraging bees in Massachusetts contain neonicotinoids, a class of pesticide linked to Colony Collapse Disorder. The study suggests that these pesticides pose significant risks to bee health and human exposure.
Researchers found that Oriental honey buzzards prefer pollen-containing dough over pollen-lacking dough, even when the color is identical. The birds also preferred yellow-colored dough over black or green dough when both contained pollen, suggesting a role for vision in foraging.
Researchers found that plant-derived tick repellents activate a sensory protein on mite front legs, influencing their survival. The discovery sheds light on the evolutionary plasticity of TRP channels in parasite-host interactions.
Researchers at UC San Diego discovered a microsporidian called Nosema ceranae can infect honeybee larvae, leading to reduced lifespans as adults. The parasite has been linked to colony collapse disorder, with global losses of one-third of managed bee colonies each year.
The US experienced a significant decline in honey bee colonies between April 2014 and April 2015, with beekeepers losing over 40% of their colonies. Summer losses were particularly severe, with commercial beekeepers facing high rates of colony losses due to unknown factors.
A genetic test that can identify desirable and undesirable bee subspecies has been created to improve biosecurity of honey bees worldwide. The test uses 95 genetic mutations that distinguish between African and European honey bees.
Date syrup's antibacterial compounds inhibit growth of disease-causing bacteria like Staphylococcus aureus and Escherichia coli. The natural syrup outperforms manuka honey in lab tests, offering potential health benefits through its antibacterial activities.
Researchers discovered that honey bees use distinct mechanisms to fight off viruses, bacteria, and gut parasites, including the RNAi pathway and DNA methylation. The findings may help develop targeted treatments for honey bee colonies affected by specific infections.
A study by Washington University in St. Louis found that low levels of manganese increased dopamine levels in honey bee brains, speeding up their behavior, while high doses caused toxicity. The findings suggest that honey bees may serve as early warning indicators for environmental toxins.
A new field-based study from the University of Maryland reveals that realistic levels of imidacloprid exposure do not significantly harm honey bee colonies. However, higher doses and synergistic combinations with other stressors, such as climate change and malnutrition, can cause more severe consequences.
New research analyzed the gut bacteria of queen bees, finding a starkly different microbiome compared to worker bees. The study suggests that modern beekeeping practices may not harm colonies by disrupting the gut microfauna.
A study by North Carolina State University, Indiana University and Wellesley College found that the gut microbiome of honey bee queens remains consistent regardless of environment. The researchers characterized the microbiome throughout the queen's development, from larval stage to emergence as adults.
A research team developed a new method using DNA metabarcoding to analyze pollen and uncovered the secret life of bees. This technique identified twice as many plant families than microscopic analysis and provided deeper insights into bee foraging behavior.