|Scientific Name:||Leggadina lakedownensis|
|Species Authority:||Watts, 1976|
|Taxonomic Notes:||The Thevenard Island form previously thought to be a distinct species found on islands, but research has shown that this is merely a larger form of the same species. Populations in Queensland, Kimberley, and Pilbara regions should probably be considered separately based on morphological differences (these are probably at least distinct subspecies).|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Assessor/s:||Morris, K., Woinarski, J. & Aplin, K.|
|Reviewer/s:||Lamoreux, J. (Global Mammal Assessment Team) & Amori, G. (Small Nonvolant Mammal Red List Authority)|
Listed as Least Concern because, although its populations fluctuate, it has a wide distribution, a presumed large population, it lacks major threats, and it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category. The north Queensland population is very restricted, and if considered separately, might be considered Data Deficient or threatened.
|Range Description:||This species is endemic to northern Australia, where it occurs from Cape York in the east to the Pilbara, in Western Australia, although the distribution is discontinuous (Moro and Kutt 2008). There are populations present on Thevenard Island and Serrurier Island (the latter is a translocated population – intentionally introduced for conservation purposes), both in Western Australia (Lee 1995; Moro and Kutt 2008).|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||The population is rare and scattered on the mainland with large annual fluctuations (Moro and Kutt 2008). It is common on islands (Moro and Kutt 2008). On islands, populations rise and fall in relation to rainfall and climatic conditions, but this may not be true of mainland populations. A study of the species at Kakadu showed that large population fluctuations had little to do with environmental factors (Moro and Kutt 2008).|
|Habitat and Ecology:||It is a nocturnal species found in areas of open tussock and hummock grassland, acacia shrubland, and savanna woodland, on alluvial clay or sandy soils (Lee 1995; Moro and Kutt 2008). Females give birth to two litters annually. Litters contain up to four young and the gestation period lasts about 30 days (Moro and Kutt 2008).|
|Major Threat(s):||There does not appear to be any major threats to this species. The Thevenard Island form is threatened by possible competition with the House Mouse (Mus musculus or Mus domesticus, there in not total agreement about which represents the House Mouse in Australia (A. Burbidge pers. comm.)) (Lee 1995). A recently constructed oil base has also been constructed, covering about 10% of the island, and it appears to be a threat.|
|Conservation Actions:||It is presumably present in a number of protected areas, including the Kadadu National Park and the Thevenard Island Nature Reserve.|
IUCN. 2008. 2008 IUCN Red List of Threatened Species. Available at: http://www.iucnredlist.org. (Accessed: 5 October 2008).
Kutt, A. S. and Kemp, J. E. 2005. Distribution, habitat and conservation status of Leggadina lakedownensis in Queensland. Australian Zoologist 33: 258-264.
Lee, A. K. 1995. The Action Plan for Australian Rodents. Australian Department of the Environment and Heritage, Canberra, Australia.
Moro, D. and Kutt, A. S. 2008. Northern Short-tailed Mouse, Leggadina lakedownensis. In: S. Van Dyck and R. Strahan (eds), The mammals of Australia. Third Edition, pp. 583-584. Reed New Holland, Sydney, Australia.
|Citation:||Morris, K., Woinarski, J. & Aplin, K. 2008. Leggadina lakedownensis. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 16 April 2014.|
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