Why is the tiger quoll endangered?

Answer 1

All Quoll species are threatened by loss of habitat, viruses, predation by dogs, cats and foxes, and competition from introduced species. The Spotted-tail and Northern Quolls are both being killed off as a result of eating the Cane Toad, which is poisonous. In some areas, because quolls have been known to kill poultry, farmers have deliberately baited the marsupials. This is an illegal practice, but it still happens. Further, quolls are known to ingest the 1080 poison put down to control populations of feral cats, foxes and rabbits.

Answer 2

Tiger quolls have suffered from extensive habitat loss (land clearing), and the Red Fox along with feral cats are not only predators, but competitors for food as well, and this has had an impact on their populations especially combined with other stress factors. There is now concern for the practice of poison baiting for other animals, such as the dingoes, and its long term impact on the Tiger Quoll's populations. For more details, please see sites listed below.

One of the major issues for the tiger quoll is tha fact that it will prey on cane toads. Cane toads are an introduced species in Australia, and highly toxic to animals that may try to eat them. Seen as easy prey by tiger quolls and northern quolls, the cane toads inevitably result in the death of the marsupial.

Timber harvesting in Tasmania poses a significant threat to the tiger quoll's shelter and removes hiding places for the quoll's prey, resulting in less food. In some areas, because quolls have been known to kill poultry, farmers have deliberately baited the marsupials. This is an illegal practice, but it still happens. Further, quolls are known to ingest the 1080 poison put down to control populations of feral cats, foxes and rabbits.

Answer 3

The quokka is not yet an "officially endangered" animal.

The conservation status of the quokka is as follows:

• National: Listed as Vulnerable under the Environment Protection and Biodiversity Conservation Act 1999.
• Western Australia: Listed as Rare or likely to become extinct under the Wildlife Conservation Act 1950.

  The quokka is at risk of being endangered because it is vulnerable to predation by feral cats, dogs and foxes. The quokka population on Rottnest Island, off Western Australia's coast, is stable, as is the small population within an enclosed reserve on the mainland. This is because these two regions are predator-free.

  The quokka lives in a limited number of other areas of Western Australia. It can also be found in the coastal plain around the Swan River, near Perth and Gingin. It is also found on Bald Island, and at Harvey and Collie in the Stirling Ranges.

Answer 4

Northern quolls have a short life span, so reproduction is very limited. Not only that, but the male dies after mating.

The Northern quoll is particularly affected by fire, due largely to the introduction of the weed Gamba Grass. Gamba Grass is highly invasive, out-competing native grasses. It affects the Northern quoll because it is a high biomass pasture grass that tends to promote very hot, intense fires during the late dry season. Gamba Grass fires are eight times hotter and more intense than those produced by native grasses. This poses a risk to the Northern Quoll by either killing them directly in the fires, or removing the availability of shelter and habitat to protect the quoll from predators.

Then there is the introduction of non-native predators such as feral cats, foxes and domestic dogs. These animals have have had a huge impact on quoll populations. the introduction of non-native flora has also mean a reduction in the quoll's herbivorous prey. less food means fewer quolls. Because of this, along with increased habitat loss, Northern quolls have had to find alternative food sources, such as the cane toad. Northern quolls die after eating cane toads, due to the toxins in the cane toad's skin.

Answer 5

Currently, the quokka is not in danger of extinctîon. Its status is listed as Vulnerable, despite the fact that it is found only in a very lited area of Western Australia. it is vulnerable to predation by introduced species and habitat loss, but these are not current issues in its main locality, which is on the protected island of Rottnest.

Answer 6

The quokka is not yet an "officially endangered" animal.

The conservation status of the quokka is as follows:

• National: Listed as Vulnerable under the Environment Protection and Biodiversity Conservation Act 1999.
• Western Australia: Listed as Rare or likely to become extinct under the Wildlife Conservation Act 1950.

  The quokka is at risk of being endangered because it is vulnerable to predation by feral cats, dogs and foxes. The quokka population on Rottnest Island, off Western Australia's coast, is stable, as is the small population within an enclosed reserve on the mainland. This is because these two regions are predator-free.

  The quokka lives in a limited number of other areas of Western Australia. It can also be found in the coastal plain around the Swan River, near Perth and Gingin. It is also found on Bald Island, and at Harvey and Collie in the Stirling Ranges.

Answer 7

The spotted tail quoll, also known as the tiger quoll, is threatened by loss of habitat, and especially from predation by introduced species such as dogs, cats and foxes, as well as competition from introduced species. The Spotted-tail Quoll in the north is being killed off as a result of eating the Cane Toad, which is poisonous. Timber harvesting in Tasmania poses a significant threat to the spotted tail quoll's shelter and removes hiding places for the quoll's prey, resulting in less food.

In some areas, because quolls have been known to kill poultry, farmers have deliberately baited the marsupials. This is an illegal practice, but it still happens. Further, quolls are known to ingest the 1080 poison put down to control populations of feral cats, foxes and rabbits.

Answer 8

The quokka is threatened because it is vulnerable to predation by feral cats, dogs and foxes. The quokka population on Rottnest Island, off Western Australia's coast, is stable, as is the small population within an enclosed reserve on the mainland. This is because these two regions are predator-free.