Article View: sci.bio.herp
Article #103Australian Biological Control
From: grenard
Date: Mon, 13 Mar 1995 09:55
Date: Mon, 13 Mar 1995 09:55
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1829 bytes
Several people have pointed out how successful the use of Myxomatosis (myxoma) virus was in eradicating Australia's rabbits. The virus was brought to Australia from Brazil in 1950. It killed 99.8% of exposed rabbits in the first year. The few that survived were genetically resistent. A year later only 90% died and by 1958 (6th generation) the mortality rate was down to 25% where I understand it has now leveled off. Presumably it is predictable that any effort at introducing a virus to kill off Bufo marinus may ultimately meet with similar limited success. In addition the virus can spread to other native frogs and toads if an insect vector is utilized; without a mosquito vector the myxoma virus could not have spread to the rabbits. Steve Grenard grenard@herpmed.com
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