Environment & Energy

eppur_se_muova

(42,328 posts)

2. Mice are an invasive species with no natural predators in Oz. While many predators can adapt to eating mice ...

Sat May 2, 2026, 01:33 AM

Saturday

naturally evolved predation behavior, particularly by snakes, should be more effective at culling mouse populations. Oz has lots of poisonous snakes (about 100 species, including some of the world's deadliest), but seems to be short of constrictors, which are (TBOMK) the most active predators of rodents.

Australia has a similar problem with rabbits, another invasive species introduced by white settlers.

Mouse plagues have occurred several times throughout parts of Australia since wild house mice (Mus musculus) were introduced by European colonists along with the First Fleet in 1788.[1] Australia and China are the two countries in the world where plagues of mice are known to occur.[2]

Mouse plagues occur in southern and eastern Australia, usually in the grain-growing regions, around every four years. Aggregating around food sources during plagues, mice can reach a density of up to 3,000 per hectare (1,200/acre).[2]

https://en.wikipedia.org/wiki/Mouse_plagues_in_Australia

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Mouse Plague In Western Australia - Between 3,000 and 4,000 Mouse Burrows Per Hectare In Some Areas [View all] hatrack Friday OP

Yikes, that's so creepy! 😵 Dave Bowman Friday #1

Mice are an invasive species with no natural predators in Oz. While many predators can adapt to eating mice ... eppur_se_muova Saturday #2

Zinc phosphide can't be any good for potential mouse predators. hunter Saturday #3