Skip links and keyboard navigation

Regional ecosystem details for 9.3.9

Regional ecosystem 9.3.9
Vegetation Management Act class Of concern
Wetlands Not a Wetland
Biodiversity status Endangered
Subregion 5, 4
Estimated extent1 Pre-clearing 2000 ha; Remnant 2021 800 ha
Short description Acacia cambagei +/- A. harpophylla woodland on cracking clay soils
Structure code Woodland
Description Woodland to low closed forest of Acacia cambagei (gidgee) +/- A. harpophylla (brigalow). There is often an open sub-canopy which can contain A. cambagei, Lysiphyllum carronii (Queensland ebony), Eremophila mitchellii (false sandalwood) and Terminalia oblongata (yellowwood). Canopy species can also be found in an open shrub layer along with Carissa lanceolata (currantbush) and Atalaya hemiglauca (whitewood). The ground layer contains a range of grasses and forbs and is seasonally dependent. Occurs on run-on areas and gentle drainage depressions on cracking clay soils. Not a Wetland. (BVG1M: 26a).
Special values 9.3.9: Possible regional refuge for some species.
Fire management guidelines INTERVAL: 10-50 years generally following periods of high rainfall and sufficient grass growth. INTERVAL_MIN: 10. INTERVAL_MAX: 50. STRATEGY: Do not target for fires. Can tolerate only very early dry season fires, under mild conditions, that trickle along the ground layer. Control fuel loads in the surrounding vegetation. ISSUES: Gidgee is only tolerant of mild fires trickling underneath, and can be damaged or killed by moderate to high intensity fires. Exotic grasses, such as Buffel grass, carry intense fires into these communities and can cause tree deaths.
Comments 9.3.9: Occurs in a restricted area east of the Great Basalt Wall in the south of the bioregion. Vulnerable to invasive weed species Cryptostegia grandiflora (rubber vine) and Malvastrum americanum (spiked Malvastrum) and exotic pasture species Cenchrus ciliaris (buffel grass) and Bothriochloa pertusa (Indian couch).

1 Estimated extent is from version 13.1 pre-clearing and 2021 remnant regional ecosystem mapping. Figures are rounded for simplicity. For more precise estimates, including breakdowns by tenure and other themes see remnant vegetation in Queensland.

Access vegetation management regional ecosystem descriptions

The Queensland Herbarium REDD lookup tool searches for information on regional ecosystems for a range of planning and management applications. If you're looking for vegetation management information you can use the vegetation management regional ecosystems description database (VM REDD)

Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
14 May 2024