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bees in Biological News

Trading energy for safety, bees extend legs to stay stable in wind

CAMBRIDGE, Mass., June 2, 2009 -- New research shows some bees brace themselves against wind and turbulence by extending their sturdy hind legs while flying. But this approach comes at a steep cost, increasing aerodynamic drag and the power required for flight by roughly 30 percent, and cutting in...

Wild bees can be effective pollinators

Over the past few years, honey bee keepers have experienced problems due to Colony Collapse Disorder (CCD), which has hurt honey bee populations, causing some growers of fruits, nuts and vegetables to wonder how their crops will be pollinated in the future. A new study published in the Annals of ...

New insight into how bees see

New research from Monash University bee researcher Adrian Dyer could lead to improved artificial intelligence systems and computer programs for facial recognition. Dr Dyer is one of Australia's leading bee experts and his latest research shows that honeybees can learn to recognise human faces e...

Honey bees on cocaine dance more, changing ideas about the insect brain

CHAMPAIGN, Ill. In a study that challenges current ideas about the insect brain, researchers have found that honey bees on cocaine tend to exaggerate. Normally, foraging honey bees alert their comrades to potential food sources only when they've found high quality nectar or pollen, and only wh...

Bee swarms follow high-speed 'streaker' bees to find a new nest

It's one of the hallmarks of spring: a swarm of bees on the move. But how a swarm locates a new nest site when less than 5% of the community know the way remains a mystery. Curious to find out how swarms cooperate and are guided to their new homes, Tom Seeley, a neurobiologist from Cornell Univers...

Wasps and bumble bees heat up, fly faster with protein-rich food

Good pollen makes bees hot, biologists at UC San Diego have found. Wasps warm up too when they find protein-rich meat, a separate experiment has shown. In both cases warmer flight muscles likely speed the insects' trips home, allowing them to quickly exploit a valuable resource before competito...

Researchers discover that growing up too fast may mean dying young in honey bees

Hilton Head, SCReactive oxygen species (ROS) occur as a by-product of aerobic metabolism and impair cellular function by damaging proteins, nucleotides and lipids. Organisms possess a variety of anti-oxidant mechanisms to mitigate the effects of ROS, and the oxidative stress model of aging and se...

Saving our bees

Most of the world's plant species rely on animals to transfer their pollen to other plants. The undisputed queen of these animal pollinators is the bee, made up of about 30,000 species worldwide, whose daily flights aid in the reproduction of more than half of the world's flowering plants. In rece...

Want to fly? Don't copy the birds and the bees

Since earliest recorded history, and presumably beyond, humans have always wanted to fly. First attempts involved imitation of winged creatures around them, and unfailingly ended in disaster. No workable flying machines have ever looked particularly similar to nature's fliers, and today there is...

Why do some queen bees eat their worker bee's eggs?

Worker bees, wasps, and ants are often considered neuter. But in many species they are females with ovaries, who although unable to mate, can lay unfertilized eggs which turn into males if reared. For some species, such as bumble bees, this is the source of many of the males in the species. But in ...

Bumble bees can estimate time intervals

In a finding that broadens our understanding of time perception in the animal kingdom, researchers have discovered that an insect pollinator, the bumble bee, can estimate the duration of time intervals. Although many insects show daily and annual rhythms of behavior, the more sophisticated ability ...

Wild bees and the flowers they pollinate are disappearing together

The diversity of bees and of the flowers they pollinate, has declined significantly in Britain and the Netherlands over the last 25 years according to research led by the University of Leeds and published in Science this Friday (21 July 2006). The paper is the first evidence of a widespread decline...

Sociality of sweat bees evolved simultaneously during climate change

In the first study to link social evolution to climate change, Cornell University entomologists show that the social behavior of many species of sweat bees evolved simultaneously during a period of global warming. This social evolution occurred much more recently than scientists ever thought -- ...

Warning from Asian bees

Four swarms of Asian bees found in Cairns have been cleared of carrying the dreaded Varroa destructor mite but the intruders themselves could pose the beginning of a serious threat to Australian honey bee populations. Asian bees are known to have found their way into Australian ports at least ha...

Animal and plant communication at the ESA Annual Meeting

...roducing glands that attract prey to a potential food source, the plants' bright colors mostly shades of red and green help to attract insects. Like bees that are attracted to flowers there's a general idea that insects like bright colors, especially reds and yellows. But thus far there is little eviden...

A young brain for an old bee

...in are studying how division of labour among honey bees affects their learning performance as they age. Su... that, by switching their social role, aging honey bees can keep their learning ability intact or even imp...n Glasgow on Wednesday 1st July 2009. The oldest bees in a colony are the foragers - a task that demands...

'Honey bee health' of concern at Western Apicultural Society conference

...dentifying non-Apis pollinators, impacts of native bees on commercial crop production and the biology and ...Davis Department of Entomology, will cover "Native bees in Crop Production in Eastern States." Claire Krem...is Department of Entomology, will discuss "Native bees in Crop Production in Western States." On Thurs...

Live-in domestics: Mites as maids in tropical rainforest sweat bee nests

... bed, they also occupy the nests of tropical sweat bees where they keep fungi in check. bees and their young are healthier when mites live-in, ...en two different species on land. Tropical sweat bees in the genus Megalopta tunnel into rotten wood, ...

A cure for honey bee colony collapse?

...iving under-populated colonies with the antibiotic drug, flumagillin and demonstrated complete recovery of all infected colonies. The loss of honey bees could have an enormous horticultural and economic impact worldwide. Honeybees are important pollinators of crops, fruit and wild flowers and are indis...

American Chemical Society Weekly PressPac -- April 1, 2009

...EASE The biochemical buzz on career changes in bees Journal of Proteome Research Adults facing ...ists from Brazil and Cuba are reporting that honey bees a mainstay for behavioral research that cannot be...alle de Sousa and colleagues point out that worker bees begin adult life by performing tasks in the nest s...

Flight of the bumble (and honey) bee

... CARBONDALE, ILInsects such as honeybees and bumble bees are predictable in the way they move among flowers, typically moving direct...ecause watermelon vines grow in multiple directions, including across rows, bees can easily move across rows if the next closest flower is in that direction...

MIT student develops new innovations to selectively kill cancer cells

... of therapeutics to tumors by taking a 'systems' approach to their design. This work draws on insights from biological systems, like ants foraging and bees swarming, where relatively simple methods of communication can lead to very sophisticated system behaviors. Inspired by the potential for inter-na...

Changing sexes on the sea floor

... Trees do it. bees do it. Even environmentally stressed fish do it. But Prof. Yossi Loya from Tel Aviv University's Department of Zoology is the first in the world to di...

Darwin anniversary heralds new conservation research era for Northern Ireland

...ich values ecosystem services in financial terms, for example, the value of natural habitats such as woodland or bog in carbon storage or the value of bees for crop pollination." ...

Honeybees succumb to cocaine's allure

...ithout rewarding them. Knowing that foraging honey bees are strongly motivated by rewards (they dance in r...y of Illinois at Urbana-Champaign wondered whether bees may be vulnerable to cocaine's allure at the right... bees' sensitivity to sugar solutions, the drugged bees responded more strongly than the undrugged insects...

Honeybees as plant 'bodyguards'

... the researchers found that bell pepper plants without fruit suffered 60 to almost 70 percent less damage to their leaves when confined in a tent with bees and caterpillars in comparison to those in a tent with caterpillars alone. The amount of leaf damage was less on fruit-bearing plants as the beet army...

Shade coffee benefits more than birds

...tion. In order to release pollen from its flowers, bees grab hold and vibrate their flight muscles, shakin...neybees don't perform buzz pollination, but native bees do, said Jha, "so I thought Miconia , which req...farms, could be a bio-indicator of how well native bees are pollinating native plants." As she spent ti...

Pollinator decline not reducing crop yields just yet

... The well-documented worldwide decline in the number of bees and other pollinators is not, at this stage, limiting global crop yields, according to the results of an international study published in the latest e...

Social interactions can alter gene expression in the brain, and vice versa

...genomes of several social animals, including honey bees and zebra finches, and new technologies such as mi... for did in fact increase in the brains of honey bees as they developed into foragers, and manipulating its expression caused bees to forage precociously. The researchers also f...

Bee smart, bee healthy

...niversity of Leicester tested the learning performance and immune responses of bumblebees from twelve colonies. The team tested the ability of 180 bees to learn that yellow flowers provided the biggest nectar rewards, and to ignore blue flowers. To test the evolutionary relationship between learning a...

Bumblebees learn the sweet smell of foraging success

... consuming and inefficient; social animals such as bees reduce these problems by informing their peers of ...d to discover if this recruitment pheromone helped bees to learn which specific flowers were most rewardin...eromone and monitored their foraging patterns. bees learned that anise-scented flowers were the most r...

Building a better bee

...ey bee line "New World Carniolans" has crossed her bees with their Old World counterparts to enhance their positive characteristics. "The bees are very gentle, very hygienic and very productive... Mussen of UC Davis said genetic research of honey bees is critical for the bee industry. "Although we ...

Scent on demand: Hebrew University scientists enhance the scent of flowers

...Environment. "Aroma is of major importance for defining the taste of food." Scent in flowers and plants is used to attract pollinating insects like bees and beetles that pass on the pollen and help in the reproduction and creation of fruit. The intensity of the scent that the flower emanates is influen...

Economic value of insect pollination worldwide estimated at 153 billion euros

...ollination service provided by insect pollinators, bees mainly, was 153 billion in 2005 for the main crops... of insect pollinators, particularly that of honey bees and wild bees which are the main crop pollinators, would not lea...

Springer bee expert Juergen Tautz wins prize for public communication

... book The Buzz About Bees, a fascinating treatise looking at all aspects of bees and bee colonies. The Buzz about bees features over 200 lush, color photographs of bees, honeycombs, and hives an...

EMBO recognizes German zoologist for public communication

...nd university students as well as broader public audiences with considerable success. His 2007 published book Phaenomen Honigbiene ( The Buzz about bees Biology of a Superorganism ) has been published in almost all European languages, last year also Arabic, Chinese and Korean versions joined the list....

Genes and nutrition influence caste in unusual species of harvester ant

...male lineages (patrilines) were more likely to become gynes while others were more likely to become major or minor workers. A recent study of honey bees found that colonies with a lot of genetic diversity were better at nest building and finding and storing food than their less diverse counterparts. ...

Pesticide build-up could lead to poor honey bee health

... Honey bees industriously bring pollen and nectar to the hive,...ers present their analysis of pollen, brood, adult bees and wax samples today (Aug 18) at the 236th nation...esticides' levels were also surprising. All of the bees tested showed at least one pesticide and pollen av...

Smells like bees' spirit

...eu Molet and Dr Nigel Raine have shown that worker bees are much more likely to respond to the pheromone a... from flowers is hard work. So it makes sense that bees are more likely to respond to the pheromone when h...ster card) to automatically record the activity of bees in the lab. Different colonies of bumblebees (...

A bee's future as queen or worker may rest with parasitic fly

...immature bees. The researchers found that smaller bees that emerge in a nest are dominated by their mothers. These small bees are more likely to stay and act as helping workers, while larger bees tend to depart and start new nests as egg-laying q...
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