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Tag: "bees" at biology news

Spider Venom Could Yield Eco-Friendly Insecticides

...ng only cotton bollworms, for example, and leaving bees and other beneficial insects unharmed. Unlike some conventional insecticides, the toxins used in the engineered virus would not end up in the food supply. Recent laboratory research on cockroaches and tobacco budworms demonstrates that the toxins ca...

Bee mites suppress bee immunity, open door for viruses and bacteria

...ney bees. One sign of infection is the presence of bees with deformed wings. Also, sometimes seemingly hea...collapses in about two weeks. "The native Chinese bees do not have the same problems," says Dr. Xiaolong Yang, post doctoral researcher in entomology and p...

Insects, viruses could hold key for better human teamwork in disasters

...ts are looking to nature -- specifically, to ants, bees and viruses -- for ways to improve human collabora...sponders is by "'learning' basic principles on how bees and ants are able to effectively self-organize based on local information," said Contractor, who dir...

Bees, Brains and Addiction

...turned to bees. Granted, the brains of humans and bees don't look much alike. But how bees respond to simple rewards, such as food, can tell scientists much about the workings of the primitiv...

Bumblebees copy one another when contending with unfamiliar flowers

...ectar. When faced with unfamiliar plants, foraging bees do not choose flowers entirely alone but instead c...oices of other bees. The new findings suggest that bees adjust their behavior when dealing with flowers of unfamiliar plant species. The observations are r...

Mayan stingless bee keeping: Going, going, gone?

Long before Europeans brought honey bees (Apis mellifera) to the Americas, Mayan bee keepers harvested honey from the log nests of stingless bees native to tropical forests. Now, colleagues from the Colegio de la Frontera Sur in Quintana Roo, Mex...

Bees solve complex colour puzzles

...new UCL (University College London) study in which bees were able to solve complicated colour puzzles. The...erent colours of illumination - by suggesting that bees solve this problem using their experience with meaningful colour relationships between objects in a ...

Primates harvest bee nests in Ugandan reserve

...ative African honeybees and honey-making stingless bees in the same habitat, humans and chimpanzees are th...ingless bees) for the study. Roubik identified the bees and found that Pygmy names for the bees corresponded to scientific names, except for a black and a b...

Honeybee decision-making ability rivals any department committee

..., the researchers have discovered, but because the bees grade their recruitment signals in relation to sit... rapidly at the best site. As soon as 15 or more bees are at any one site, the researchers found, the scouts signal to the waiting bees in the swarm that ...

Sociality of sweat bees evolved simultaneously during climate change

... that the social behavior of many species of sweat bees evolved simultaneously during a period of global w...ssociate professor of entomology at Cornell. Sweat bees are eusocial, he explained, which is a type of social behavior in which the animals have permanently...

ASU researchers find link between social behavior, maternal traits in bees

One of the puzzling questions in the evolution of bees is how some species developed social behaviors. Ar...ons of labor among worker bees. Workers are female bees whose jobs include cleaning, maintaining and defending the hive, raising the young and foraging for ...

Honey helps problem wounds

...ey has an antiseptic effect: when producing honey, bees add an enzyme called glucose-oxidase. This enzyme ensures that small amounts of hydrogen peroxide, an effective antiseptic, are constantly being formed from the sugar in the honey. The advantage over the hydrogen peroxide from the chemist's is that s...

Wild bees and the flowers they pollinate are disappearing together

The diversity of bees and of the flowers they pollinate, has declined si... this is not the case. The research found for both bees and hoverflies, the "winners" and "losers" were consistently different; insects which pollinate a li...

Bumble bees can estimate time intervals

...Using a specially designed chamber in which bumble bees extended their proboscis to obtain sucrose rewards, the researchers observed that bees adjusted the timing of proboscis extensions so that most were made near the end of the programmed in...

Beekeepers work hard for the honey, despite changing tupelo forest

...ther tupelo honeys." It takes a colony of 60,000 bees about 2 million nectar-gathering visits to the tupelo blossoms each spring to make a pound of honey. That task is even tougher than it sounds because some beekeepers say it is increasingly difficult to find places to put their hives. One reason is ...

Researchers find that bumblebees' flower choice matters

...sor, Jeffrey Karron, are studying the behaviors of bees as they gather pollen ?which plant species the bees forage on, which flowers they probe and in what order, and how many blooms they visit before moving ...

Looking to a new era in bee research

...ights into the remarkable longevity of queen honey bees and sperm stored in the spermatheca. The HBGSP has united a broad range of scientists, from leaders in human genomics and bioinformatics to members of diverse disciplinary and organism-based communities, including those studying mammals and human...

New genetic analysis forces re-draw of insect family tree

...y related to beetles and more distantly related to bees and wasps, contrary to previous theory. The fi... that flies and moths were most closely related to bees and wasps, with beetles more distantly related to these groups. This new family arrangement also ...

Detecting explosives with honeybees

...ng techniques common to bee research, they trained bees to give a positive detection response, via the pro...Haarmann put together began with research into why bees are such good detectors, going beyond merely demonstrating that bees can be used to identify the pre...

Honey bee genome holds clues to social behavior

...social cues ?a form of bee pressure that can cause bees to change jobs in response to needs of the hive. ...extrapolate the biology to humans." Adult worker bees perform a number of tasks in the hive when they are young, such as caring for eggs and larvae, and t...

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