Hello Mike, Frank and others,
There has been some study on this but I can't remember what the results
were. I think that there have been a number of studies showing a number of
birds having a high tolerance to 1080. Malleefowl are supposed to be highly
tolerant to 1080. I can point people in the direction of a few relevant
articles which probably have further relevant articles cited therein. I
haven't got time at the moment to look for the actual papers. But somebody
out there might be able to put their hands on these.
J. C. McIlroy. The sensitivity of Australian animals to 1080 poison. VII.
Native and introduced birds. Australian Wildlife Research 12:331-335, 1985.
J. C. McIlroy. The sensitivity of Australian animals to 1080 poison IX.
Comparisons between the major groups of animals, and the potential danger
non-target species face from 1080-poisoning campaigns. Australian Wildlife
Research 13:39-48, 1986.
D. R. King, W. E. Kirkpatrick, and M. McGrath. The tolerance of Malleefowl
Leipoa ocellata to 1080. Emu 96 (3):198-201, 1996.
Cheers,
Mick Todd
Griffith, NSW.
At 12:27 PM 31/07/01 +0800, you wrote:
Mike & others,
My understanding is that no animal is 'resistant' to 1080 poison, but some
can tolerate higher doses than others. From memory, some south west WA
animals (mammals and reptiles) are up to 30 times more tolerant than the
introduced animals. This has evolved as 1080 naturally occurs in their
environment. Hence the amount of 1080 in the baits can be controlled to
kill the introduced animals, without killing the native animals.
I don't know if Australian Magpies (or any other birds such as currawongs)
are more tolerant of 1080. I would think that it is possible, but
probably only in the areas where 1080 occurs naturally? Does anyone know
exactly?
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