Bees
key to Defense sting operations

by Chris Walz
Pentagram staff writer
from
dcmilitary.com
Training animals to perform certain tasks ranges
widely from force protection to entertainment. Researchers
long ago realized dogs have an acute sense of smell and can be trained
to detect bombs and drugs. Pet owners learned relatively recently they
can train a dog to open the refrigerator, grab a beer and return to
the couch so the human won't miss a moment of Monday Night Football
-- a talent worthy of late night television talk show host David Letterman's
segment "Stupid Pet Tricks."
But, there aren't many people who see the trick-performing
capabilities of common insects. Most people often run for a can of Raid.
The Defense Advanced Research Project Agency, the government's
think tank for radical ideas like the Internet and stealth technology,
wanted to investigate insects -- especially flying ones.
Jan Walker, an agency spokesperson, said they are interested
in learning if ordinary honeybees are able to help human investigators
detect nuclear, biological or chemical weapons.
Jerry Bromenshenk, a biological sciences research professor
at the University of Montana, served as the team leader for the three-and-a-
half-year study. He said there are two modes, or ways, bees can be used
for detection purposes.
One way is to send bees into an area of interest
to collect data. A honeybee's body has a natural static electricity
cling that collects air particles, including dangerous particles from
an explosive device.
"We have demonstrated bees can be trained to prefer
certain odorants over their usual food sources and this training persists
for a useful amount of time," said Dr. Alan Rudolph, Defense
Advanced Research Project Agency's Controlled Biological and Biomimetic
Systems program manager. "In field tests, bees clustered at locations
where we had placed explosives. We have measured probability of detection
and false alarm for bees finding targets in the field and have found
that they are quite robust. We are also investigating the passive collection
of bees and other insects to determine environmental presence of chemical
or biological threats."
"Bees can be trained to go to 'odors of interest'
when associated with a food source -- similar to [Russian psychologist
Ivan] Pavlov's theory," said Walker. "Bees fly around an environment,
collect pollen and then go back to the hive. We can put instruments
in the hive that detect molecules other than pollen -- like molecules
one would find in explosive materials."
Bromenshenk said the static electricity also collects
toxic metals, industrial and military chemicals, diseases and anthrax.
The other way to use detection bees is to train them to
use their highly sensitive receptors to locate harmful chemicals. Bee
handlers use either cameras or binoculars to see when their flight patterns
change.
"We've trained bees to fly in a sharp 'zigzag'
fashion when they detect a possible bomb," said Bromenshenk.
"A colony of bees will fan out and search as far as two miles away.
We convinced them an explosive device's vapors are desirable, like pollinating
a new type of flower they've never been exposed to. They have a great
ability to thoroughly canvas an area quickly."
A Defense Advanced Research Project Agency consultant,
Bob Cartledge, told several publictions recently that bees have better
sensors than humans and make looking for landmines a lot easier than
searching "inch-by-inch with a knife."
Bees do, however, have some drawbacks. Like other detection
animals, bees have trouble seeking explosive materials in heavily-sealed
containers. A bomb needs to have a leak or a ventilation system for
the bees to properly 'hit' on the device, the professor explained.
Bees also won't work in the night, when it's cold or during
wetness, and, he added, research so far indicates bees are most likely
unable to detect radiation.
Bromenshenk said his team was initially concerned bees
may have problems when faced with multiple hits in an area, like a field
heavily-saturated with landmines. He wondered if the whole bee colony
would converge on the device with the strongest scent or biggest plume.
He said bees are actually easier to train than
dogs and are equally reliable, if not more so. The professor
claims bees are 90 to 98 percent reliable and have only a 1 to 2 percent
false positive record. Bees, he added, can accurately find a cluster
of landmines, drugs, biological spores and even decomposing bodies.
"They have an incredible sense of detection and can find
particles ranging from a few parts per trillion, and possible even a
few parts per quadrillion," he continued. "They are very reliable, very
accurate and are on par with [the detection ability] of dogs. But, unlike
dogs, bees don't feel the need to bond with their handlers."
A major strength of detection bees, as opposed to dogs,
is that bees don't need a leash. Bromenshenk said the bees love their
home hive and almost always return.
"Sending a whole colony of bees is more effective than
one or two dogs," he said, explaining how his team trains the bees in
bulk -- hundreds of thousands of them at a time.
Some critics have argued through various media outlets
that bees trained in America may not be able to find weapons of mass
destruction in Iraq because of differences in the environment and climate.
They also argue importing American honeybees into a foreign area, like
Iraq, could disrupt fragile ecosystems.
Bromenshenk said it was never a consideration to train
only a certain number of bees to detect chemicals and then transport
them into foreign territories. His research involved creating a method
to train the bees. Bee trainers, he said, can travel and collect native
bees to perform searches -- meaning bee handlers would train Iraqi bees
to help search for chemicals and other types of weapons.
Most of the technology and research was developed at the
University of Montana and the Southwest Research Institute has been
called on to validate Bromenshenk's findings.
"Bees," he said, "will help find needles in haystacks."
The Southwest Research Institute built a large mesh-covered
tent in its backyard to continue studying bees. The tent is approximately
one acre in size and 40-feet tall.
"The tent provides a bridge between the highly-controlled
laboratory environment and the myriad conditions, variables, and unknowns
associated with realistic field and operational testing," according
to the insititute's Web site.
Executive vice president Walter Downing stated in a press
release that the institute is also studying moths and rats to see if
they can perform similar searches.
from
dcmilitary.com