How To Make Waves Wall
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Science by Email 10 February 2012
News: Opening a can of elephants
By Patrick Mahony
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| Is introducing elephants to Australia a good idea? |
Driving through northern Australia, what sort of animals would you expect to see? Perhaps kangaroos, crocodiles and water buffalo, but what about elephants? Or a Komodo dragon?
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Professor David Bowman from the University of Tasmania recently suggested introducing elephants into Australia's northern grasslands to help fight invasive gamba grass. Gamba grass is an introduced weed that fuels bushfires but is too big for most herbivores to eat.
David also suggested that introducing Komodo dragons could reduce populations of feral animals such as pigs and water buffalo.
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What do you think of David's plans? On the one hand, Australia doesn't have a good track record of introducing non-native species – just look at rabbits, cane toads and lantana. However, some current environmental management strategies are expensive and not working, so changes may be necessary.
Scientists' ideas can be controversial. Galileo, Charles Darwin and Albert Einstein supported radical ideas that were criticised and condemned at the time but are now accepted by mainstream thinking. However, other ideas have fallen by the wayside due to lack of evidence.
Ask yourself some questions: what are the benefits of David's suggestion? What could go wrong? Are there consequences that we haven't thought of yet? How could scientists monitor and control such a course of action? Is all of this worth it?
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