Regional ecosystem details for 9.4.3
| Regional ecosystem | 9.4.3 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Endangered |
| Subregion | 4 |
| Estimated extent1 | Pre-clearing 100 ha; Remnant 2021 100 ha |
| Short description | Acacia harpophylla and Lysiphyllum carronii open woodland on Cainozoic clays |
| Structure code | Open Woodland |
| Description | Open woodland of Acacia harpophylla (brigalow) and Lysiphyllum carronii (Queensland ebony). There is a low sub-canopy of canopy species +/- Eremophila mitchellii (false sandalwood) +/- Santalum lanceolatum (sandalwood) +/- Atalaya hemiglauca (whitewood). The sparse shrub layer can contain canopy species and Carissa ovata (currantbush). This community can also exist as low open woodland of the same canopy species with Acacia harpophylla emergents. The sparse ground cover is a varied mixture of grass and forb species sometimes dominated by Dichanthium spp. Occurs on plains on clay lenses within Cainozoic sediments. Not a Wetland. (BVG1M: 24a). |
| Fire management guidelines | INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Do not burn deliberately. Maintain fire management of surrounding country so that wildfires will be very limited in extent. Frequent fire at the edge of this RE keeps fuel loads low. Protection from fire is necessary. ISSUES: Brigalow is soft-seeded, so germination is not promoted by fire. Buffel grass invasion will increase risk from fire. High intensity fires will cause damage to overstorey. Grazing may be an option for reducing fuel loads where exotic grass such as buffel have invaded. |
| Comments | 9.4.3: Found in a restricted area north-east of Charters Towers in the south of the bioregion. Vulnerable to invasive weed species Cryptostegia grandiflora (rubber vine). |
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.
