Indicative distribution
The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas.
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click here to see geographic restrictions).
The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Brigalow (Acacia harpophylla dominant and co-dominant)
Gazetted date:
04 Apr 2001
Profile last updated:
06 Apr 2022
Description
The Brigalow (Acacia harpophylla dominant and co-dominant) ecological community (the Brigalow ecological community) occurs within Queensland (Qld) and New South Wales (NSW). Acacia harpophylla (brigalow) is a distinctive silver-foliaged shrub or tree. It is commonly the dominant species in a range of open forests and woodlands; these are collectively referred to as brigalow woodlands. The Brigalow ecological community is characterised by the presence of Acacia harpophylla as one of the most abundant tree species (Butler, 2007). A. harpophylla is either, dominant in the tree layer, or co-dominant with other species – notably Casuarina cristata (belah), other species of Acacia, or species of Eucalyptus. Occasionally these other species may be more common than A. harpophylla within the broad matrix of brigalow woodlands vegetation. The Brigalow ecological community has a considerable range of vegetation structure and composition united by a suite of species that tend to occur on acidic and salty clay soils (Isbell, 1962; Johnson, 1964; Bui and Henderson, 2003). However not all vegetation in which A. harpophylla is dominant or co-dominant is part of the listed ecological community (see section 1.7.3. Excluded Queensland regional ecosystems). The Brigalow ecological community was listed as Endangered under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) on 4 April 2001. The ecological community was defined using the respective state vegetation classifications available at that time. In Qld, the Brigalow ecological community is defined based on the Regional Ecosystem (RE) framework used for biodiversity planning (Sattler and Williams, 1999; Queensland Herbarium, 2013). In NSW, the Brigalow ecological community included two NSW vegetation communities: Brigalow community of the northern floodplain; and, Brigalow outlier of the Mulga Lands bioregion (Wade, 1992). Since the time of listing, REs in Qld have been revised and updated, including the
identification of new brigalow REs. In NSW, a new vegetation classification, the NSW Vegetation Classification and Assessment (VCA) database, has since become available (Benson et al., 2006; 2010). In order to meet the definition of the TEC sites must satisfy condition criteria stipulated in the Listing Advice and/or Conservation Advice. Typically condition is assessed by reference to patch size and vegetation structure thresholds or species composition metrics.
Distribution
Regional distribution and habitat
Click on a region below to view detailed distribution, habitat and vegetation information.
Recovery strategies
Priority actions are the specific, practical things that must be done to recover a threatened species, population or ecological
community. The Office of Environment and Heritage has identified
0 priority actions
to help recover the Brigalow (Acacia harpophylla dominant and co-dominant) in New South Wales.
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