The Interim Biogeographic Regionalisation for Australia (IBRA) is a biogeographic regionalisation of Australia developed by the Australian government's Department of Sustainability, Environment, Water, Population, and Communities. It was developed for use as a planning tool, for example for the establishment of a national reserve system. The first version of IBRA was developed in 1993–94 and published in 1995.
The Tanami Desert is a desert in northern Australia, situated in the Northern Territory and Western Australia.
The Victoria Bonaparte, an interim Australian bioregion, is located in the Northern Territory and Western Australia, comprising 7,301,242 hectares.
Central Ranges is an Australian bioregion, with an area of 101,640.44 square kilometres spreading across two states and one territory: South Australia, Western Australia, and the Northern Territory. It forms a large part of the World Wide Fund for Nature Central Ranges xeric scrub ecoregion.
The Arnhem Plateau, an interim Australian bioregion, is located in the Northern Territory of Australia, comprising an area of 2,306,023 hectares of the raised and heavily dissected sandstone plateau that characterises central Arnhem Land in the Top End of the Northern Territory.
New England Tablelands, an interim Australian bioregion, is located mainly in New South Wales, comprising 3,002,213 hectares, of which 2,860,758 hectares or 95.23 per cent of the bioregion lies within New South Wales; and the residual within Queensland. This bioregion is one of the smaller bioregions in NSW, occupying 3.57 per cent of the state.
The Arnhem Coast, an interim Australian bioregion, is located in the Northern Territory, comprising an area of 3,335,669 hectares of the coastal plains that characterises central Arnhem Land in the Top End of the Northern Territory.
The Darwin Coastal, an IBRA bioregion, is located in the Northern Territory of Australia.
The Daly Basin, an interim Australian bioregion, is located in the Northern Territory, comprising an area of 2,092,229 hectares of central Arnhem Land in the Top End of the Northern Territory.
The Pine Creek biogeographic region, an interim Australian bioregion, is located in the Northern Territory, and comprises 2,851,777 hectares.
The Gulf Coastal, an interim Australian bioregion, is located in the Northern Territory, comprising 2,711,718 hectares.
The Gulf Fall and Uplands, an interim Australian bioregion, is located in the Northern Territory and Queensland, comprising 11,847,909 hectares.
Burt Plain, an interim Australian bioregion, is located in the Northern Territory, and comprises 7,379,719 hectares.
The Simpson Strzelecki Dunefields, an interim Australian bioregion, comprises 27,984,283 hectares, and is part of four state/territories of Australia: the Northern Territory, South Australia, New South Wales and Queensland
Finke, an interim Australian bioregion, comprises 7,267,416 hectares, and is part of two state/territories of Australia: the Northern Territory and South Australia. It is part of the Central Ranges xeric scrub ecoregion.
Stony Plains, an interim Australian bioregion, comprises 13,166,372 hectares, and is part of two state/territories of Australia: the Northern Territory and South Australia.
The Sturt Plateau, an interim Australian bioregion, is located in the Northern Territory, and covers an area of 9,857,531 hectares. The bioregion has the code STU. There are three subregions.
Tanami is an interim Australian bioregion, comprising 25,997,277 hectares in the Northern Territory and Western Australia. It is part of the Great Sandy-Tanami desert ecoregion.
Davenport Murchison Ranges is an interim Australian bioregion located in the Northern Territory. It has an area of 5,805,108 hectares. The bioregion is part of the larger Great Sandy-Tanami desert ecoregion.
Tiwi Cobourg is an interim Australian bioregion located in the Top End of the Northern Territory of Australia. It has an area of 1,010,580 hectares, which includes the Cobourg Peninsula of Arnhem Land, Croker Island, and the Tiwi Islands. The bioregion is part of the Arnhem Land tropical savanna ecoregion.
