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Quokka (Setonix brachyurus) - Wiki latin dict size=78   common dict size=512
Image Info Original File Name: Rottnest_Quokka_2004_Sean McClean-Quokka (Setonix brachyurus).jpg Resolution: 2476x2272 File Size: 1098314 Bytes Date: 2004:12:30 03:27:17 Camera: C8080WZ (OLYMPUS CORPORATION) F number: f/2.9 Exposure: 10/6400 sec Focal Length: 219/10 Upload Time: 2007:09:02 17:13:39
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Subject Quokka (Setonix brachyurus) - Wiki

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Quokka (Setonix brachyurus) - Wiki

From Wikipedia, the free encyclopedia

[Photo] Setonix brachyurus on Rottnest Island. Date: December 2004. Taken by

The Quokka (Setonix brachyurus) is a small macropod, about the size of a large domestic cat. Like other marsupials in the macropod family (such as the kangaroos and wallabies), the Quokka is herbivorous and mainly nocturnal.

In the wild, its roaming is restricted to a very small range in the South-West of Western Australia. The Quokka has become rare, but remains a protected species on two islands off the coast of that area, Bald Island, Rottnest Island, Garden Island and rarely Penguin Island. Both islands are free of foxes and cats. On Rottnest Island, it is common and occupies a wide range of habitats, ranging from semi-arid scrub to cultivated gardens.

The Quokka is the only member of the genus Setonix. It weighs 2.5 to 5 kg and is 40 to 54 cm long with a 25 to 30 cm tail ??? which is rather short for a macropod. It has a stocky build, rounded ears, and a short, broad head. Although looking rather like a very small, dumpy kangaroo, it can climb small trees and shrubs. Its coarse fur is a grizzled brown colour, fading to buff underneath. The Quokka recycles a small amount of its waste products.

The Quokka is gregarious and gathers in large groups where food is available: primary items are grasses, sedges, succulents and foliage. The health of some animals has suffered significantly by the ingestion of inappropriate foods, such as bread, given by well meaning visitors to Rottnest Island. Visitors are now asked to refrain from feeding them. It breeds at any time on the mainland, but in late summer on Rottnest. The Quokka only produces a single joey in a year. Restricted availability of the trace element copper appears to be a major limiting factor of the ability of the Quokka to breed on Rottnest.

Although numerous on the small offshore islands, it has a very restricted range and is classified as vulnerable. On the mainland, where it is threatened by introduced predatory species such as foxes, it requires dense ground cover for refuge. This refuge has been taken away from the Quokka due to loss of habitat due to agriculture which has contributed to the decline of the Quokka as well. Also human introduced cats and dogs, as well as dingoes, have contributed to the problem along with the clearing and burning of the remaining swamplands they have left.

European discovery
The Quokka was one of the first Australian mammals seen by Europeans. The Dutch mariner Samuel Volckertzoon wrote of sighting "a wild cat" on Rottnest Island in 1658. In 1696 Willem de Vlamingh mistook them for rats and named the island "Rottenest", Dutch for "rat nest".
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