Petrogale concinna

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	MAMMALIA	DIPROTODONTIA	MACROPODIDAE

Scientific Name:

Petrogale concinna

Species Authority:

Gould, 1842

Common Name/s:

English

–

Nabarlek, Pygmy Rock Wallaby

Assessment Information [top]

Red List Category & Criteria:

Data Deficient ver 3.1

Year Assessed:

2008

Assessor/s:

Woinarski, J., Burbidge, A., Telfer, W., McKenzie, N. & Start, T.

Reviewer/s:

Lamoreux, J. & Hilton-Taylor, C. (Global Mammal Assessment Team)

Justification:
Listed as Data Deficient in view of the absence of recent information on its distribution, population status, and threats. Its habitat is presumed to be in decline due to changes in the fire regime, and there appears to have been localized extinctions over the last 30-40 years in the Northern Territory. However, the species still has a large extent of occurrence and very little is known about its status throughout most of its range. Survey work on this species is a high priority.

History:

1996

–

Lower Risk/near threatened

Geographic Range [top]

Range Description:	The Nabarlek is endemic to Australia, where it occurs essentially in two disjunct locations: the north-western Kimberley (Western Australia) and in Top End (Northern Territory). The populations in two regions have traditionally been referred to as separate subspecies, but these designations remain untested by modern morphometric or genetic analyses (Sanson and Churchill 2008).
Countries:	Native: Australia
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	The species is very patchily distributed, though it can be locally abundant. There seems to have been localized extinctions from the Northern Territory within the last 30-40 years. In Western Australia, the species is found on several offshore islands but is apparently very restricted, and on the mainland it is occurs as scattered populations. There is no sound evidence of an overall population decline in Northern Territory over the last ten years, and there is no population information from Western Australia.
Population Trend:	Unknown

Population:

The species is very patchily distributed, though it can be locally abundant. There seems to have been localized extinctions from the Northern Territory within the last 30-40 years. In Western Australia, the species is found on several offshore islands but is apparently very restricted, and on the mainland it is occurs as scattered populations. There is no sound evidence of an overall population decline in Northern Territory over the last ten years, and there is no population information from Western Australia.

Population Trend:

Unknown

Habitat and Ecology [top]

Habitat and Ecology:	This species is shy and mostly nocturnal (Woinarski 2002). It typically spends its days in caves and crevices. At night it forages in a variety of habitats from monsoon rainforests and vine thickets to open woodlands and hummock grasslands (Sanson and Churchill 2008).
Systems:	Terrestrial

Threats [top]

Major Threat(s):	The current threats to this species are largely unknown. Changes to vegetation composition and structure as a result of altered fire regimes are thought to be the greatest threat facing Nabarleks. Introduced cats probably prey on Nabarleks, but it is unknown whether or not this constitutes a major threat. All four offshore islands do not have cats.

Major Threat(s):

The current threats to this species are largely unknown. Changes to vegetation composition and structure as a result of altered fire regimes are thought to be the greatest threat facing Nabarleks. Introduced cats probably prey on Nabarleks, but it is unknown whether or not this constitutes a major threat. All four offshore islands do not have cats.

Conservation Actions [top]

Conservation Actions:	This species occurs in several protected areas. Surveys are needed for a more accurate picture of its distribution and population status. Nabarlek populations should be monitored on a regular basis to determine population trends and assess possible threats. Research may be required to develop appropriate survey techniques as this species is nocturnal and prefers rugged terrain. The affects of fire on this species needs to be investigated and the development of fire management plans is also of high importance.

Conservation Actions:

This species occurs in several protected areas. Surveys are needed for a more accurate picture of its distribution and population status. Nabarlek populations should be monitored on a regular basis to determine population trends and assess possible threats. Research may be required to develop appropriate survey techniques as this species is nocturnal and prefers rugged terrain. The affects of fire on this species needs to be investigated and the development of fire management plans is also of high importance.

Citation:	Woinarski, J., Burbidge, A., Telfer, W., McKenzie, N. & Start, T. 2008. Petrogale concinna. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 10 February 2012.
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