Re: @ x7 (was Er, what? - effective cat training)
Cats have come up with a myxo for our wildlife: Toxoplasmosis.
...toxoplasmosis, a disease caused by the parasite Toxoplasma gondii. The parasite is spread by cats but it can infect any bird or mammal. Around one-third of humans worldwide are infected with the parasite. But the deadly effects on our wildlife are often overlooked.
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The disease has a range of debilitating symptoms, including anorexia, lethargy, reduced coordination, apparent blindness, enlarged lymph nodes, disorientation, breathing difficulties, jaundice, fever, abortion, and death.
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Toxoplasmosis is a confirmed killer of other Australian wildlife, including Tammar wallabies, koalas, wombats, and several small dasyurids.
In Tasmania, toxoplasmosis kills Bennett’s wallabies and pademelons, with infected animals found dead or stumbling around blindly during the day, vulnerable to predators or cars as they stumble onto busy roads.
Current Tasmanian law protects many feral cats:
In Tasmania, the Cat Management Act 2009 allows primary producers, and people working on their behalf, to trap, seize or humanely destroy any cat found on rural land where livestock are grazed. On other private land that is more than 1 km from a place of residence, a person can trap, seize or humanely destroy a cat. [Emphasis mine]
The Northern Tasmanian wedgetail eagle population is threatened with extinction by windmills. There are only 200 breeding pairs (max.) in the whole state. Forty percent of their diet is feral cat according to Nick Mooney.
Further pressure on our wildlife, specifically small birds, comes from kookaburras. They are not native to Tasmania, but are protected by national legislation as a "native" species. When kookaburras took up local residence a few years ago, the small bird population fell by ~90%. The Git particularly misses his resident diamond birds (40 spotted pardalotes). Tiny, fearless and friendly, they ate an awful lot of insects (garden pests) and this has been the worst season for whitefly The Git can recall.
The mainland has feral dogs (dingoes) and foxes*. The main native predator, the Tasmanian Devil has declined in numbers somewhat dramatically due to the facial tumour disease, and toxoplasmosis.
Sad days in many ways...
* Tasmania supposedly has a fox problem, but nobody has found any, only fox shit. And apparently mostly from a single animal according to recent DNA analysis. But there's quite a few "fox eradicators" gotten rich ($AU35 million) off "eradicating" them.