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Interim Biogeographic Regionalisation for Australia (IBRA), Version 7 (Subregions)

Created 06/06/2025

Updated 06/06/2025

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Interim Biogeographic Regionalisation for Australia (IBRA) version 7.0 represents a landscape based approach to classifying the land surface of Australia. 89 biogeographic regions and 419 sub regions have been delineated, each reflecting a unifying set of major environmental influences which shape the occurrence of flora and fauna and their interaction with the physical environment across Australia and its external territories (excluding Antarctica). IBRA Version 7.0 data consists of two datasets. IBRA bioregions, which is a larger scale regional classification of homogenous ecosystems, and sub regions, which are more localised. IBRA Version 7.0 is the result of both significant changes to certain IBRA 6.1 boundaries, plus refinement of other boundaries due to better data availability amongst some states and territories, and alterations by the states/territories along state borders. The updated boundaries were jointly defined by the Commonwealth, State and Territory nature and conservation agencies. In this respect refinements were carried out to all mainland jurisdictions with significant changes in Queensland and South Australia. In addition the dataset was also updated to more closely conform to the Geoscience Australia 1:100K State borders, and a standard coding/naming convention introduced (for both regions and sub-regions) resulting in differences to both names and codes used in earlier IBRA Versions. Various sources were used to delineate islands - these included the GA100K Admin layer plus the Australian Maritime Boundaries dataset, a Coral Sea dataset (held in ERIN) and the GA Commonwealth Fisheries 2006 dataset.

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Additional Info

Field Value
Title Interim Biogeographic Regionalisation for Australia (IBRA), Version 7 (Subregions)
Language English
Licence Creative Commons Attribution 3.0 Australia
Landing Page https://devweb.dga.links.com.au/data/dataset/188ae132-d7b4-4a1a-8785-21786bcbe0bf
Remote Last Updated 14/06/2024
Contact Point
New South Wales Datasets
test@email.loc
Reference Period 16/05/1995 - 01/05/2022
Geospatial Coverage
Map data © OpenStreetMap contributors
Data Portal DataNSW

Data Source

This dataset was originally found on DataNSW "Interim Biogeographic Regionalisation for Australia (IBRA), Version 7 (Subregions)". Please visit the source to access the original metadata of the dataset:
https://data.nsw.gov.au/data/dataset/nsw-interim-biogeographic-regionalisation-for-australia-ibra-version-7-subregions