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worker in Biological News

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

Strange things are happening in the lowland tropical forests of Panama and Costa Rica. A tiny parasitic fly is affecting the social behavior of a nocturnal bee, helping to determine which individuals become queens and which become workers. The finding by researchers from the University of Was...

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 ...

Taking a bite out of a fellow worker helps wasps recruit new foragers

If you think you've got a bad boss, one who loves to chew people out, or if you work with backstabbing co-workers, be thankful you are not a wasp. If you were, chances are your nestmates might bite you to communicate that it is time to leave the nest and forage for the colony, according to resear...

ComCam Selected by ePortation on New Maritime Domain Awareness Project

...eaport security project. ComCam CEO Don Gilbreath stated, "Our two companies have worked informally for about a year supporting Transportation worker Identity Credential (TWIC) initiatives which include biometric video security solutions and gate access validation as an input to logistics management...

1 in 6 health workers won't report in flu pandemic -- study by Ben-Gurion U. researchers

...ry of Health Pandemic Preparedness Plan. "Our results could help preparedness planners identify workforce needs and develop strategies for improving worker response." According to the survey, public health workers who were both "concerned" about the threat posed by a pandemic, and who were "confident"...

Landmark project to map genomics of complex ant systems

...ex, but ants in these colonies have different sizes and muscle structures," she says. "The genetic basis for what makes a soldier ant different from a worker ant is an incredibly interesting question in biology." A key part of the project is bringing genomics into classrooms, by giving high school and co...

American Chemical Society Weekly PressPac -- April 1, 2009

...ind the behavior, feats of navigation, and social organization in these animals. In the study, Marcelo Valle de Sousa and colleagues point out that worker bees begin adult life by performing tasks in the nest such as brood nursing. By 2-3 weeks of age, however, these females equivalent to middle age in ...

Team approach appears to work best for insect colonies

...econd is when the group's behaviour is controlled by a form of policing in honey bee hives, for example, any egg not laid by the queen is destroyed by worker bees, to ensure only the queen's offspring survive. Both methods ensure that all the individuals involved are united in a common purpose. Dr Andy G...

Lockheed Martin Named Biometrics 'Company of the Year' by Frost and Sullivan

...palm prints, iris and facial recognition. Lockheed Martin also is the prime contractor for the Transportation Security Administration's Transportation worker Identification Credential program, which equips vetted maritime workers who require unescorted access to secure areas of ports and vessels with biomet...

Lockheed Martin Named Biometrics 'Company of the Year' by Frost and Sullivan

...palm prints, iris and facial recognition. Lockheed Martin also is the prime contractor for the Transportation Security Administration's Transportation worker Identification Credential program, which equips vetted maritime workers who require unescorted access to secure areas of ports and vessels with biomet...

Cutting-edge amfAR grants fight HIV/AIDS in the lab and on the phone

...e-to-face as well as via text messaging from popular opinion leaders (POLs). These are people who are both popular and influential within the male sex worker community. POLs will be trained to provide appropriate information, and male sex workers will be surveyed both before and after the intervention to me...

Methyl bromide alternatives indicated for North Carolina tomato production

...n single alternative fumigant, chemical, or other technology exists that can readily substitute for MeBr in efficacy, cost, ease of use, availability, worker safety, and environmental safety. Fresh-market tomatoes were planted on 124,400 acres in the United States in 2007, with a gross production value o...

Lockheed Martin Team Wins Role on Key Department of Defense Biometrics Contract Vehicle

...alm prints, iris and facial recognition. Lockheed Martin also is the prime contractor for the Transportation Security Administration's Transportation worker Identification Credential (TWIC) program, which equips vetted maritime workers who require unescorted access to secure areas of ports and vessels with...

Ants may help researchers unlock mysteries of human aging process

...rs that befit their station in life, whether it be worker ant, soldier or queen," said Dr. Reinberg, profess...tive tasks, queens live up to 10 times longer than worker ants. As a consequence of differential aging and d...y, social behavior and brain aging among queen and worker ants. "Whether these modifications are indeed ...

Fountain of Youth to be found in the anthill?

...ltator (literally meaning "jumping sickle jaw") is a primitive species of ant where workers are able to perform either reproductive or helper tasks. A worker can become a reproductive functional queen, if the original queen dies or is removed. Such a trait is not found in "higher" order ants because these s...

Worker ants of the world, unite! You have nothing to lose but your fertility

... This release is available in French . The highly specialized worker castes in ants represent the pinnacle of social organization in the insect ...ne what's going to be the head and what's going to be the tail, to stop the worker ants from producing viable offspring," Abouheif explained. "Different speci...

Farming and chemical warfare: A day in the life of an ant?

... also adopted the practice of weeding. When a microbial pest is detected by worker ants, there is an immediate flurry of activity as ants begin to comb throug...s and pests can ruin human gardens." A curious observation was that some worker ants had a white wax-like substance across their bodies. When they looked a...

Major source of radon exposure overlooked at former Ohio uranium-processing plant

...our proximity to a specific source, we had to know approximately where each worker stood or sat during their shift to figure out what level of radon they were...le to assign workers to locations across the plant, for each calendar year. worker locations were verified using data from more than 2,100 detailed questionna...

NTDs burden in Latin America and the Caribbean may exceed that of HIV/AIDS, TB and malaria

...sis, lymphatic filariasis (LF), and onchocerciasis. NTDs produce extreme poverty by adversely impacting child development, pregnancy outcomes and worker productivity. In some cases in Latin America and the Caribbean, NTDs also represent a living legacy of slavery, because they were first introduced in...

ID Solutions Achieves Full-Production Delivery and Payment for Fingerprint Processing Software for TWIC

... TSA's Transportation worker Identification Credential (TWIC) Program Ensures No Fraudulent Duplicate Enrollments Using ID Solutions Technology MIAMI BEACH, Fla., Sept. 22 /PRN...

Genes and nutrition influence caste in unusual species of harvester ant

...was long assumed that castes are environmentally determined, but recent studies on Pogonomyrmex harvester ants have found colonies in which becoming a worker or gyne is determined exclusively by genetic differences. Such rigidity constrains the colony's ability to adaptively adjust to environmental realitie...

Smells like bees' spirit

... to their situation. Dr Mathieu Molet and Dr Nigel Raine have shown that worker bees are much more likely to respond to the pheromone and leave the nest in...ponse to the pheromones was stronger in colonies with less food - with more worker bees becoming active, and more foraging bouts being performed. The team...

Saving our bees

...rral to organic and conventional farms. During the course of the summer months, they found that the further a colony was from natural areas, the fewer worker bees it sustained. Williams' team also found that bees always collected pollen from both crops and native plants. Since crop fields aren't in bloom fo...

Brain tweak lets sleep-deprived flies stay sharp

...s sleep, Seugnet found. "Using this gene and other related genes, we may be able to find better ways to boost performance for someone like a relief worker who's had to stay awake for six straight days trying to save people trapped by an earthquake," Shaw says. "I want to emphasize, though, that this ...

Peers important for nutrition education among Latinos

...better understand how nutrition peer educators can be formally incorporated into the health care system within the Chronic Care Model community health worker (CHW) framework." Latinos are the largest minority group in the United States, accounting for more than 12% of the population, and they are expected t...

Extended cyclone relief efforts aided from space

... their team to Myanmar, hoping to have better access to the field. "We download your maps and use [them] in rescue works," Myanmar national rescue worker Prof. Charlie Than said. Thant Lwin Htoo from Myanmar emergency response actions said he downloaded maps of Hpontawbye village for emergency relie...

New discovery proves 'selfish gene' exists

...system described as a 'super-organism,' the female worker bees are sterile. The adult queen bee, selected and developed by the worker bees, is left to mate with the male drones. Because the 'selfish' gene controlling worker sterility has never been isolated by scientists, t...

ID Solutions Awarded Full-Production Order for Fingerprint Processing Software for TWIC

... TSA's Transportation worker Identification Credential (TWIC) Program Ensures No Fraudulent Duplicate Enrollments Using ID Solutions Technology MIAMI BEACH, Fla., June 17 /PRNe...

IEEE Fellow first woman to receive highest award in engineering profession

...n, as well as to the development of national policies for the protection of worker safety and health. Chaffin is the Richard G. Snyder Distinguished Univer... Simulation Laboratory he founded at Michigan is dedicated to ensuring that worker safety and convenience are more thoroughly considered in vehicle and workpl...

Magnet Lab researchers make observing cell functions easier

...her organisms have been sequenced, biologists are turning their attention to discovering how the many thousands of structural and control genes -- the worker bees of living cells that can turn genes on and off -- function. To do that, they need to develop new techniques and tools. Scientists in the Optic...

Researchers explore altruism's unexpected ally -- selfishness

... the individuals most likely to cheat were also most likely to punish other cheaters. Similar examples appear to exist in non-human species, including worker bees that prevent other workers from laying eggs while laying a few of their own. Is selfish punishment really so hypocritical in moral terms" Acco...

Iowa middle school wins IEEE-USA National Engineering Award

...ivated from a cellular device to turn on your lights and heat, turn off your water system, notify you in case of a problem in your home, and contact a worker to make the necessary repairs. IEEE members Amarjeet Basra of Annandale, Va., and Ananthram Swami of Silver Spring, Md., selected Harding from amon...

Research uncovers the social dynamics of yellow jackets

...ucing queens instead of sterile workers. Turning a worker into a queen is easier than it seems it simply re...ony was. Success was judged based on the number of worker and queen cells in the nest. The findings of this ...ound between the number of mates and the number of worker cells. However, queens that effectively mated four...

Ant parasite turns host into ripe red berry, biologists discover

...f normal and infected ants in both Panama and Peru, near the Peruvian rainforest city of Iquitos, and demonstrated that, typically, about 5 percent of worker ants in a colony are infected. Cephalotes colonies contain between a few hundred and several thousand ants. Infected ants, normally black, develop ...

UVa biomedical engineering study shows magnetic field can reduce swelling

...ryday sprains, bumps, and bruises, but with more beneficial results. The ready availability and low cost of this treatment could produce huge gains in worker productivity and quality of life. Magnets have been touted for their healing properties since ancient Greece. Magnetic therapy is still widely used...

Insects' 'giant leap' reconstructed by founder of sociobiology

...lonies that are maintained and defended because of their proximity to food sources. Eusociality is a challenge for biologists to understand because worker castes in eusocial species forgo individual reproduction but rear young that are not their own, a behavior that biologists label altruistic. Wilsons c...

Ant invaders eat the natives, then move down the food chain

...ants. These are really important, often fixed resources, from which ants can get a huge amount of their carbohydrate fuel, the energy to fuel their worker force, Suarez said. As the native ants are displaced, the Argentine ants start monopolizing these resources. The impact on the natives was disastro...

For honey bee queens, multiple mating makes a difference

... in determining how attractive the queen is to the worker bees of a hive. Their research was published Oct. ...a key factor in making the queen attractive to the worker bees of a colony the more partners, the more attr...tion of this pheromone that appears to attract the worker bees of a hive. A honey bee colony consists of ...

Wasp genetics study suggests altruism evolved from maternal behavior

...udy had uncovered a genetic link between the two. The researchers found that the pattern of behavior-related genes expressed in the brains of worker wasps was most similar to that seen in foundresses, the female wasps who alone build new colonies and devote much of their early lives to maternal tas...

454 Sequencing uncovers a genetic basis for different social behaviors in wasp

...y and a major challenge for evolutionary theory. It has been proposed that worker behavior evolved from maternal care behavior. The researchers explored this...oductive pathways. Our goal was to test the prediction that maternal and worker (eusocial) behaviors share a common molecular basis explained Gene Robinson...
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