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Interim Biogeographic Regionalisation for Australia (IBRA) Version 5.1 (Subregions)

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Created 21/10/2024

Updated 21/01/2025

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IBRA version 5.1 Sub-regions, like their parent regionalisation IBRA version 5.1, represent a landscape based approach to classifying the land surface of Australia from a range of continental data on environmental attributes, at a finer scale. 354 IBRA 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.The IBRA Version 5.1 Sub-regions are the result of refinement of the IBRA Version 4 boundaries. These refined boundaries were jointly defined by the Commonwealth, State and Territory nature and conservation agencies. Following a DEH facilitated workshop on the revision of boundaries on 24 July 2000, spatial data refinements were undertaken by DEH in conjunction with relevant State / Territory agencies.Nominal attributes for the IBRA and IBRA Sub-regions are; climate, lithology/geology, landform, vegetation, flora and fauna, and landuse. The use of these attributes varies across the States.

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Title Interim Biogeographic Regionalisation for Australia (IBRA) Version 5.1 (Subregions)
Language English
Licence Other
Landing Page https://devweb.dga.links.com.au/data/dataset/4d5ad53b-9f63-47b9-8a9b-d3de1bc2a2be
Remote Last Updated 17/10/2023
Contact Point
Reference Period 04/04/2023
Geospatial Coverage South Australia Government
Data Portal data.gov.au