Colony Collapse
Disorder
Colony Collapse
Disorder
Since 2004, literally billions of honeybees
have been dying across America. The death toll has concerned
many scientists and entomologists, as these small creatures
have the responsibility of pollinating over $15 billion worth
of crops in America each year. The reason for the sudden
death of the honeybee has been linked to the Colony Collapse
Disorder. A phenomenon which sees hives left with a queen, a
few newly hatched adults and plenty of food, but not
one worker bee (who are responsible for
pollination) left, they have simply vanish!. Alarming
statistics have revealed that Colony Collapse Disorder has
struck between 50 percent and 90 percent of commercial honeybee
hives in the U.S.
Causes Of The Bee
Deaths
Colony Collapse Disorder could be caused
by many factors; some believe that there has been genetic
weaknesses bred into bees over time which makes them vulnerable
to parasites , the effects of pesticides and
pollutants, the varroa mite which affects all hives on the
U.S. mainland, poor nutrition, or an unidentified virus.
Unfortunately, if it is a virus, scientists have no general
way of treating or vaccinating bees against it.
Interestingly, some have linked the bee deaths
to cell phone interference.
Israelis Paralysis
Virus
September 2007
: A virus has been found in
healthy Australian honey bees which may be playing a major role
in the collapse of honey bee colonies across the United States.
The mass death of worker bees started to occur in 2004, the
same year American beekeepers started importing bees from
Australia. The virus is called the Israeli Acute Paralysis
Virus (IAPV), named after the Hebrew University
researchers who discovered it. IAPV differs from the Colony
Collapse Disorder in that the worker bees die very close to the
hive (after developing shivering wings and paralysis), where as
the bees with Colony Collapse Disorder just vanish. Researchers
have noticed that Australian bees seem to be resistant to
IAPV and do not come down with any symptoms. They have also
discovered that IAPV was present in bees that had come from
Colony Collapse Disorder hives approximately 96 percent of the
time.
A
technique, called pyrosequencing, was used to discover the
virus. The process which isolates the genes in bees, allowed
the scientists to compare the leftover genetic sequences with
others detailed in public databases, and then pick
out every fungus, bacterium, parasite and virus harbored by the
bees.
|