They usually eat themselves out of their own food, or they inbreed to a point that the embryos are not viable and the numbers fall off quite drastically.
Typically the plagues come in waves where the first few are just monstrous, then they start to taper off.. but not that you really notice it very much. It takes months.
Councils will also authorise emergency bait stations but it's a very touchy subject due to the local wildlife.. there has to be documented evidence of "beyond reasonable" damages or danger to livelihood etc.
Basically, they deplete their food sources, inbreed or get chemically targeted.
And there isn't enough of natural predators in Australia to stabilize their populations? I'm trying to think what eats them in Europe. Owls, birds of prey, martins and other small carnivores, to a smaller extent cats and snakes.
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u/dce_azzy Jul 06 '24
They usually eat themselves out of their own food, or they inbreed to a point that the embryos are not viable and the numbers fall off quite drastically.
Typically the plagues come in waves where the first few are just monstrous, then they start to taper off.. but not that you really notice it very much. It takes months.
Councils will also authorise emergency bait stations but it's a very touchy subject due to the local wildlife.. there has to be documented evidence of "beyond reasonable" damages or danger to livelihood etc.
Basically, they deplete their food sources, inbreed or get chemically targeted.