New research suggests designated bee groomers, or allogroomers, are essential to the health of their colony.

Varroa mites and other ectoparasites, parasites that reside on the outside of a host's body, are a major threat to the health of honeybees and their colonies all over the world.

Fortunately, bees have allogroomers to keep them clean.

Allogroomers are worker bees that help remove bits of debris, including parasites and pathogens, from their peers. It's a dangerous job, but new research suggests allogroomers are equipped with especially powerful immune systems.

"Here, we found worker bees that specialize in allogrooming are highly connected within their colonies, and have developed stronger immune systems," Alessandro Cini, researcher at the University College London, said in a news release. "We suspect that if more bees engaged in these allogrooming behaviors that ward off parasites, the colony as a whole could have greater immunity."

For the study, scientists monitored the activity of workers in western honeybee hives. The western honeybee is the world's most common honeybee. Researchers identified and tested the immune systems of allogroomers and non-grooming workers.

Tests showed the hemolymph of bees that regularly groomed their peers was better able to clear pathogens. Hemolymph is like blood for insects.

"By identifying a striking difference in the immune systems of the allogrooming bees, which are involved in tasks important to colony-wide immunity from pathogens, we have found a link between individual and social immunity," said researcher Rita Cervo, scientist at the University of Florence.

The new research -- published Tuesday in the journal Scientific Reports -- suggests efforts to encourage allogrooming behavior inside hives could help protect bees from parasites like the Varroa mite.

By tracking the movements and interactions of grooming bees, researchers determined that allogroomers are the most socially connected bees in the colony.

But their specialty is relatively weak, as allogroomers spend equal amounts of time on other tasks. The research suggests not all bees are hyper-specialized, and that some amount of physiological plasticity is innate in worker bees.

Scientists aren't yet sure why some workers engage in grooming behavior and others don't, nor can researchers say how allogroomers know when their peers need cleaning. Per usual, more research is necessary.

Related Links
Darwin Today At TerraDaily.com

Tweet

Thanks for being here; We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain. With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords. Our news coverage takes time and effort to publish 365 days a year. If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Contributor $5 Billed Once credit card or paypal		SpaceDaily Monthly Supporter $5 Billed Monthly paypal only

Bumblebees nibble the leaves of flowers to trick them into flowering early
Washington DC (UPI) May 21, 2020
When impatient bumblebees emerge in early spring only to find a handful of daffodils, they sometimes resort to hi-jinks. Research published Thursday in the journal Science suggests bumblebees trick flowers into flowering early by nibbling on their leaves. Previous studies have shown plants bloom early in response to environmental stressors like intense heat or light, signs of heatwaves and drought, but the latest research suggests physical damage, like the scars left by a hungry bumblebe ... read more