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recorded at 15/190 survey sites (McAlpin 1997). None were found in the biological surveys conducted across the APY Lands from 1991 to 2001 (Robinson et al. 2003) however Tjakura was rediscovered in South Australia in 1997 when two Aboriginal women came across some burrows on the Watarru IPA which was the first record for SA in 63 years (Daniel 1999, Partridge 2008).

 Current distribution
 The review of the status of Tjakura conducted for the IUCN in 2017 described 12 known regional
 subpopulations across an overall Extent of Occurrence of about 500,000 km2 (Paltridge et al. 2017).
 However, subsequent survey work conducted by Aboriginal Rangers and consultants have extended the known range in the south-west (Birriliburu IPA, Matuwa IPA, Jigalong area and Lake Wells near Cosmo Newberry), increasing the Extent of Occurrence to 770,000 km2. New subpopulations have also been detected within the existing range, on the Ngururrpa IPA, along the Tanami Road and on the Ngaanyatjarra Lands. The currently known distribution of Tjakura is shown in Figure 1. Sites where Tjakura have been confirmed as present in recent years are listed in Table 1.

 One of the largest Tjakura surveys conducted in recent years was the targeted searches conducted on the Ngaanyatjarra Lands in 2018 and 2019. After mining consultants discovered a large subpopulation occurred at a potential mine site 30 km south of Jameson (106 active burrows in 400 km2, Western Wildlife 2019) the Ngaanyatjarra Rangers were contracted to conduct
 a regional survey of Tjakura within a 200km radius of the mine site (Ngaanyatjarra Council Land & Culture, 2019). They recorded 60 active burrows across a vast area, with many new sites mapped between Jameson, Warnarn, Warrakurna and Blackstone. As this population also extends to Warburton, Tjirrkarli, and Patjarr, the Ngaanyatjarra Lands may support the largest known regional population of Tjakura in Australia.

 Another extensive survey was conducted along the route of the new Tanami Pipeline, which follows the Tanami Road. The 500 km transect, which essentially traverses the north-eastern boundary of the known range of the Tjakura was surveyed by walking the entire route on foot, searching for burrows. Although a high density of burrows was recorded at the northern end of the pipeline (>300 burrows within 13 km of core habitat through the Sangsters Bore palaeodrainage channel), and scattered burrows occurred within 50 km north and south of the high-density area, there was only one location found in the southern 300 km section, due east of the Newhaven Wildlife Sanctuary population (Eco Logical Australia 2018).

 Other large populations, known to comprise more than 100 burrows, occur on Newhaven Wildlife Sanctuary, UKTNP (and the adjacent Yulara Freehold Land and Katiti-Petermann IPA), and on the Kiwirrkurra IPA.

 A study