|Scientific Name:||Petrogale purpureicollis|
|Species Authority:||Le Souef, 1924|
|Red List Category & Criteria:||Near Threatened ver 3.1|
|Assessor(s):||Burbidge, A.A. & Woinarski, J.|
|Contributor(s):||Eldridge, M. & McKnight, M.W.|
Rated as Near Threatened (rather than previous LC) given recent information suggests ongoing decline and small population size. A Vulnerable rating may be valid (particularly C2a(i)), but the available data are limited, and it is plausible that some of the larger subpopulations in the core of the range are relatively stable.
|Previously published Red List assessments:|
|Range Description:||The Purple-necked Rock Wallaby is restricted to north-western Queensland, from near Winton to Lawn Hill and near the Northern Territory border (Johnson and Eldridge 2008; Eldridge 2012). Within this area, it occurs in a series of discontinuous colonies determined by availability of suitably rocky and steep habitat.|
|Range Map:||Click here to open the map viewer and explore range.|
There has been no robust assessment of total population size, nor that of most individual subpopulations (although Eldridge (2012) noted some ‘colonies of over 20 individuals’). Eldridge (2012) reported that it is common at the centre of its distribution (Mt Isa, Cloncurry and Dajarra), but rare (and probably declining: M. Eldridge pers. comm. 2014) to the north-west and that it had declined (and is continuing to decline) in the south-east with some losses of subpopulations, such as at Bladensberg National Park about 1975. White and Mason (2011) considered that it was common and widespread at Lawn Hill (Boodjamullah) and the Riversleigh area, in the north-west of its range. Johnson and Eldridge (2008) reported that it was ‘sparse’. Clancy and Close (1997) regarded it as ‘common’ but with unknown population trend. Eldridge (2012) noted that the overall population was declining; McKnight (2008) considered the trend unknown.
|Current Population Trend:||Decreasing|
|Habitat and Ecology:|
The Purple-necked Rock-wallaby is associated with rocky habitats, including limestone, quartzite and sandstone outcrops, boulder piles, cliffs and gorges, rocky slopes and gullies, mostly within eucalypt woodlands, Acacia woodlands and hummock grasslands (Eldridge 2012). Johnson and Eldridge (2008) reported that larger and more successful colonies had access to permanent fresh water. Purple-necked Rock-wallabies shelter in rock piles and caves during the day, and emerge in the evening to feed on grass and browse (Johnson and Eldridge 2008; Eldridge 2012). Breeding occurs throughout the year (Woinarski et al. 2014).
|Continuing decline in area, extent and/or quality of habitat:||Yes|
|Generation Length (years):||5|
|Movement patterns:||Not a Migrant|
|Major Threat(s):||This species is likely threatened by competition with domestic and introduced herbivores. It is possibly threatened by introduced predators.|
|Conservation Actions:||This species occurs in Lawn Hill National Park. Further studies are needed into the distribution, abundance, ecology, and threats to this species. Populations of this species should be monitored to record changes in abundance and distribution.|
|Citation:||Burbidge, A.A. & Woinarski, J. 2016. Petrogale purpureicollis. The IUCN Red List of Threatened Species 2016: e.T136463A21955566.Downloaded on 01 September 2016.|
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