How did rabbits become known as an invasive species or pest in Australia whereas it’s not the case elsewhere in the world?
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In the rest of the world there are lots of predators that keep the rabbit population down. Primarily foxes but also lynx, falcons and other canines, cat species and predatory birds. For example the number of predatory species in southeast Asia means that the rabbits will not get established there, yet.
In Australia there is no big predators that will hunt rabbits. So the rabbits are able to spread uncontrollably. They are eating the plants that various other animals rely on for feed and can therefore become responsible for extermination of other species. But if we introduce predators to Australia to deal with the rabbits these predators will also hunt other native species and can equally be responsible for the extermination of the species we are trying to save.
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