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The quokka markedly declined in its abundance and distribution in the early 1930s, and this tendency has continued till today. Their presence on the mainland has declined to such an extent that they are only found in small groups in bushland surrounding Perth. In late 2024 a new quokka population was discovered in the Perth Hills. [29]
Name Location Locality Size (ha) Distance from mainland (km) Notes Rottnest Island [3: 1,900: 17: Home to the largest population of quokkas in the world. [4]Garden Island: 1,200: 2.2 (connected by the Garden Island Causeway)
Rottnest Island is one of the most popular recreation and holiday destinations in Western Australia, valued for its scenic natural environment with iconic protected quokka population. It is also the state's largest holiday resort, attracting 734,637 visitors per year during the financial year 2017-18 (+14% year growth).
The island was first documented by Willem de Vlamingh in 1696, who called it 't Eylandt 't Rottenest ("Rats' Nest Island") after the quokka population. Following establishment of the Swan River Colony (now Perth) in 1829, the island was initially used by British settlers for agricultural purposes, and a permanent settlement was built in Thomson ...
There are a few mainland mammals including the quokka, and a population of Gilbert's potoroo is also being established. The island forms part of the Two Peoples Bay and Mount Manypeaks Important Bird Area , identified as such by BirdLife International because of its significance in the conservation of several rare and threatened bird species. [ 5 ]
The spread of the red fox population corresponds directly with the declining populations of several endemic terrestrial marsupials, including the brush-tailed, burrowing and rufous bettong, the Greater bilby, numbat, bridled nailtail wallaby and the quokka. [7]
In my humble uninformed opinion, if pouches really were so loose that quokka young could fall out easily during movement, one would expect to see a much higher frequency of abandoned quokka young, and indeed a much lower population of quokkas as this would be a very detrimental trait to have that nearly negates the benefit of having a pouch in ...
For his PhD research, conducted at the University of Western Australia, Holsworth studied behaviour and population homeostasis in quokkas on Rottnest Island, off the coast of Western Australia. [ 1 ] Bill and Carol Holsworth moved to Bendigo, Victoria in 1976. [ 4 ]