Arctic
Gulls Ingest Chemical Cocktail
CBC
The
glaucous gull is found in Arctic regions around the world. It is a
large omnivorous gull that is the top predator in its particular food
web.
They
were first studied in the 1980's because they had declined in number
by about 50 percent.
The
main causes were suspected to be global warming, as well as chemical
contamination of their livers, eggs and plasma.
Recent
research by Dr. Jonathan Verreault, Canada Research Chair in
Comparative Avian Toxicology and an Assistant Professor at Université
du Quebec à Montreal, has found that the same problems face the
glaucous gull today.
Although
DDT and PCB's were banned in the 1970's, they still persist in the
frigid Arctic.
Similarly,
some flame retardants - found in many household products - were
banned less than a decade ago, and also show up in the birds.
However,
scientists were surprised to find evidence of six new flame
retardants in the gulls as well.
To
hear program GO
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