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IBRA version 7 map

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.

Within the broadest scale, Australia is a major part of the Australasia biogeographic realm, as developed by the World Wide Fund for Nature. Based on this system, the world is also split into 14 terrestrial habitats of which eight are shared by Australia. The Australian land mass is divided into 89 bioregions and 419 subregions. Each region is a land area made up of a group of interacting ecosystems that are repeated in similar form across the landscape.

The most recent version is IBRA7, developed during 2012, which replaced IBRA6.1.

IBRA regions and subregions

This is a list of region and subregions under IBRA7. Region codes are given in parentheses; followed by area, where known. Images of regions are from IBRA6.1, pending creation of maps for IBRA7.

IBRA 6.1 regions map

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IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Arnhem Coast ARC 3,335,669 hectares (8,242,620 acres) NT IBRA 6.1 Arnhem Coast.pngThe 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.

Within the broadest scale, Australia is a major part of the Australasia biogeographic realm, as developed by the World Wide Fund for Nature. Based on this system, the world is also split into 14 terrestrial habitats of which eight are shared by Australia. The Australian land mass is divided into 89 bioregions and 419 subregions. Each region is a land area made up of a group of interacting ecosystems that are repeated in similar form across the landscape.

The most recent version is IBRA7, developed during 2012, which replaced IBRA6.1.

IBRA regions and subregions

This is a list of region and subregions under IBRA7. Region codes are given in parentheses; followed by area, where known. Images of regions are from IBRA6.1, pending creation of maps for IBRA7.