POST Online Media Lite Edition



 

Researchers use technology to spy on bumblebees

Staff Writer |
By tagging individual bumblebees with microchips, biologists have gained insights into the daily life of a colony of bumblebees (Bombus impatiens) in unprecedented detail.

Article continues below






The team found that while most bees are generalists collecting both pollen and nectar over the course of their lifetime, individual workers tend to specialize on one of the two during any given day, dedicating more than 90 percent of their foraging sorties to either pollen or nectar.

The observations also revealed that individual bumblebee workers differ vastly in terms of their foraging activity.

Just like their domesticated cousins, the honey bees, bumblebees play important roles as pollinators, thus helping in agriculture and fruit production. But despite the ecological services they provide, many aspects of their biology still remain a mystery.

By outfitting each bumblebee with a radio frequency identification, or RFID, tag—similar to the ones used to protect merchandise from shoplifters—the researchers were able to keep tabs on them at all times and log the data automatically instead of relying on human observations limited to certain times.

"The way these studies have typically been done requires a human observer sitting in front of a hive entrance and taking notes all day, and nobody wants to do that," says Avery Russell, the lead author of the study. Russell is a doctoral student in entomology and insect in the lab of Daniel Papaj, a professor in the University of Arizona's Department of Ecology and Evolutionary Biology.

"With the RFID chips, we can track every nectar and pollen collection trip made over each worker's lifespan and a portion of the colony's lifespan."

The researchers then used this data to determine how patterns of specialization on each food type differed at timescales of a day or over a lifetime. The results are published in the journal Scientific Reports.

Once a bumblebee queen has mated, she burrows into the ground and overwinters. The following spring, she emerges and starts a hive that lasts until the fall.

A typical bumblebee colony grows to about 75 workers, with about 40 to 50 going out and foraging on flowers for nectar and pollen. After the colony's growth phase, the colony produces unfertilized eggs that hatch into males.

The male bumblebees then disperse in search for other unmated queens to begin the cycle anew.

"Each individual bee only lives between two weeks to a month at the most," Russell says, "and even though they behave as generalists over their lifetime, our study showed that they tend to specialize on one food source over the course of a foraging day."

The researchers were surprised to find a vast difference in efficiency, with the most active foragers making 40 times the number of trips each day as the least active workers.

"Interestingly, when we studied the morphology between very active foragers and workers that barely leave the hive, we found that bees with more sensitive antennae foraged more," Russell said.

Similar variation has been in observed in honey bees and other eusocial species, where some workers are much more active than others, but no one had seen it to this extreme due to the limits of human observations.

"If you watch a bee only for an hour or so, you can't say what it will do over the course of a few days or over its whole life," Russell says.

"We don't yet know why, but it could be that workers that forage less do so because they aren't quite as skilled at foraging as others and make themselves useful by doing more around the hive."

To track the bees' behavior, the team superglues tiny RFID tags to the backs of the bees. Each tag weighs only 2 to 3 percent of the bee's weight.

A Y-tube connects the hive to two arenas, one that offers pollen and one that offers nectar. When a bee leaves the hive to forage, it can choose to go to the pollen chamber or the nectar chamber.

Two RFID readers mounted at the entrance keep track of the bees going in and out and help the researchers collect a wealth of data.


What to read next

Good food puts bees in good mood
Drones inspired by insects could keep flying when damaged
Nicotine enhances bees' activity, slows diseases

U.S.: Pacific storm will bring strong winds, heavy rain, and mountain snow

 
A strong storm that originated over the Pacific has tracked through the Great Basin and is currently transitioning across the Rockies to redevelop across the central High Plains later today into early Saturday morning.
 
 

Latest

U.S. drillers add oil and gas rigs to 586
Cold-Link Logistics will create 123 new jobs in Robeson County, North Carolina
ArcelorMittal plans Alabama mill to produce electrical steel, will create 1,300+ jobs
Manhattan Tunnel Project estimated to create 15,800 new jobs

NEWS

EPPO probes steel import tax fraud with searches in UK and Germany

Police investigate extensive data breach on Valio’s network
U.S.: Prolonged heavy rain and snowfall
Croatia: Investigation launched against 2 individuals and 1 company suspected of subsidy fraud
Latvia-Sweden subsea cable damaged in Baltic Sea
Storm brings rain and snow to southwest U.S.; snow on higher elevations
 

BUSINESS

U.S. oil rig count rises to 479

New York AG warns businesses against price gouging of eggs and poultry amid bird flu outbreak
Firms admit laundering Russian wood into EU
U.S. oil and gas rig count falls to 576
Kansas Governor announces $25M for Stafford County Transload Facility Project
Ukraine planning to resume port concessions in 2025
 

Trending Now

EU to support Envision AESC France's production of batteries for electric vehicles

Denmark supports hydrogen pipeline to Germany with $1.1bn of subsidies

Maersk and Hapag-Lloyd launch Gemini Cooperation

EU invests over €1.2 billion in cross-border infrastructure


POLITICS

South Africa raises national minimum wage to $1.55 per hour

Moldova announces tender for constructing wind, solar parks worth 200 mln euros
Denmark supports hydrogen pipeline to Germany with $1.1bn of subsidies
EU invests over €1.2 billion in cross-border infrastructure
More nuclear power plants will be approved across England and Wales
Colorado and United Kingdom sign agreement to foster trade and investment
 

Today We Recommend

Moldova announces tender for constructing wind, solar parks worth 200 mln euros


Highlights 

Cold-Link Logistics will create 123 new jobs in Robeson County, North Carolina

ArcelorMittal plans Alabama mill to produce electrical steel, will create 1,300+ jobs

Manhattan Tunnel Project estimated to create 15,800 new jobs


COMPANIES

Egypt unveils new Suez Canal navigation charts for expanded route

Maersk and Hapag-Lloyd launch Gemini Cooperation
EU to support Envision AESC France's production of batteries for electric vehicles
Ooredoo and ASN to build subsea cable for GCC countries and Iraq
Pratt & Whitney to expand manufacturing operations in North Carolina, create 325 jobs
GE Vernova to create 75 new jobs in Schenectady County, New York
 

CAREERS

Inizio appoints Colin Stanley as chief commercial officer

Bridgewest Group names operating partner and general manager, Europe
Keith Hale named group CEO to Unite Titian Software & Labguru (BioData)
Solithor appoints new CEO
McWin appoints Guillaume Charlin as managing partner
PrecisionLife: Bill Keating new chief commercial officer, diagnostics and healthcare
 

ECONOMY

U.S. becomes New Zealand's second largest export destination

Indonesia goes from $0.6 billion deficit to $5.9 billion surplus
Greece to repay $5.3 billion bailout debt early
Fraser Institute: Canada’s debt ranking falls from best in G7 to 7th worst
Kuwait reports $5.2 bln budget deficit in FY 2023-24
Eurozone reports modest Q1 GDP growth, stable annual inflation
 

EARNINGS

Ericsson Q2 sales down but North America up

Lockton revenue $3.55 billion
Motorcar Parts of America Q4 sales $189.5 million
Limoneira Q2 revenue $44.6 million
Lululemon athletica Q1 revenue increased 10% to $2.2 billion
PVH Q1 GAAP EBIT $205 million
 

OP-ED

Micromanaging is the worst enemy of efficiency and teamwork

Niger set to monetize massive gas reserves through Saharan natural gas pipeline
Putting the brakes on EV folly that choked the market
Oil discovery in Kavango Basin may mean huge benefits for Namibians
Cape Town and Dubai battle over Africa's energy future
Is America going to lose its superpower status?
 

AGRIFISH

U.S. resumes cattle and bison imports from Mexico under new protocol

Canada considers lowering tebuconazole residue limit on grapes, impacting U.S. imports
How expensive was agricultural land in Europe in 2023
Iran to import 50,000 tons of potatoes to stabilize prices amid rising food costs
JBS and partners donate 3 million tags to improve livestock traceability in Pará, Brazil
Hong Kong suspends of poultry meat and products from areas in U.S.
 

LEADERSHIP

Study: Missing a deadline has a bigger impact than you might think

Employers prefer younger job candidates for AI roles although experienced workers perform same or better
Study finds workers misjudge wage markets
Some organizations may need to expand their hierarchical structures earlier than others
Study finds there's right way and wrong way to deliver negative feedback in workplace
Allyship is critical and its needs appreciation
 

CRIME

Commission fines Pierre Cardin and its licensee Ahlers €5.7 million for restricting cross-border sales of clothing

BHP, Vale agree to pay $30B damages for Brazil dam disaster
Commission fines České dráhy and Österreichische Bundesbahnen €48.7 million over collusion to exclude common compe
SEC charges Keurig with making inaccurate statements regarding recyclability of K-Cup beverage pod
SEC charges John Deere with FCPA violations for subsidiary’s role in Thai bribery scheme
AG Bonta secures $3.9 million settlement with cryptocurrency company Robinhood
 

Magazine

TRAVEL

Radisson Hotel Group debuts in the heart of Tunisia’s capital city, Tunis

Morocco’s first Radisson branded hotel opens in Casablanca
Buna channels, an unreal and beautiful part of Bosnia and Herzegovina
JW Marriott unveils Mindful Haven with opening of JW Marriott Hotel Nairobi
Sotheby's Sports Week returns with fantastic artifacts
Red Roof properties open in Michigan
 

SEA, LAND, AIR

Citroën C3 Aircross, the most affordable compact SUV with 7 seats

2025 Chevrolet Equinox stands apart with fresh looks and capability
Hill Helicopters HX50, luxury in the sky
Opel Movano becomes fully equipped camper van
Porsche Panamera, new hybrid variants
Dodge Charger, 670 horsepower of electric
 

DESIGN

Cold night, hot fire pit, cool entertainment

Embellish your home with PVC panels
You'll have to hurry if you want one of 20 new Louis Vuitton watches
Luxury duvet looks good, fells good and keeps you healthy
Vacheron Constantin, watches for life and more
Schüller kitchens, where functionality marries design
 

GADGETS

MESA/Boogie Celebrates 40-year partnership with John Petrucci

reMarkable 2, monochrome tablet for your thoughts and your eyes
OnePlus Ace 3V, first with Snapdragon 7 Plus Gen 3
ASUS Zenfone 11 Ultra, flagship with a reason
Samsung Galaxy S24 is photography powerhouse
Casette tapes are making a big comeback, and so are portable players
 

HEALTH

Human cases of anthrax reported in western Mongolia

One more barrier to developing vaccine for HIV removed
Rwanda begins world's first clinical trial for treatment of Marburg virus disease
Rwanda restricts gatherings amid Marburg virus outbreak, to begin trials of vaccine
Teksas Attorney General reaches settlement in first-of-its-kind healthcare generative AI investigation
Potentially deadly fungal disease spreading in California
 

MEANTIME

India launches space docking experiment mission

World-first carbon-14 diamond battery made
Einstein Telescope step closer
Exoplanet-hunting telescope to begin search for another Earth in 2026
India to build first phase of its own space station by 2028
Roscosmos chief approves schedule of creating Russian orbital station through 2033