Regional ecosystem details for 5.3.11
| Regional ecosystem | 5.3.11 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 1, 10, 2, (4.1), (3) |
| Estimated extent1 | Pre-clearing 93000 ha; Remnant 2021 93000 ha |
| Short description | Acacia georginae tall open shrubland +/- Senna artemisioides subsp. oligophylla +/- Eremophila freelingii on minor drainage lines and alluvial plains |
| Structure code | Tall Shrubland |
| Description | Acacia georginae tall open shrubland with an open shrub layer of Senna artemisioides subsp. oligophylla and Eremophila freelingii frequently present. The ground layer varies from very sparse to open, and is usually dominated by perennial grasses. Eragrostis setifolia and Enneapogon avenaceus usually dominate on texture contrast soils and non-cracking red clays and Bothriochloa ewartiana, Eulalia aurea, Eragrostis setifolia and Astrebla pectinata usually dominate on alluvia and on red and brown cracking clays. A variety of forbs occur infrequently, but may be seasonally co-dominant. Occurs along on minor drainage lines and alluvial plains. Soils vary from deep, red and brown cracking clays to alluvial texture contrast soils and non-cracking clays. Not a Wetland. (BVG1M: 26a). |
| Supplementary description | Neldner (1991), 28d (23); Boyland (1984), 15b; Wilson and Purdie (1990a), S2 (11), A2 (43) |
| Protected areas | Munga-Thirri NP |
| Fire management guidelines | SEASON: Various (wet season or winter). INTENSITY: Low - moderate. INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Aim to exclude fire by fuel reduction in adjacent vegetation communities where possible. Undertake partial burns when necessary to reduce fuel loads and protect against severe wildfire. Burn with high soil moisture (i.e., after rain/storms) or in winter when fire is more easily controlled. ISSUES: Rarely burns due to low fuel loads. |
| Comments | 5.3.11: Georgina River area. In many areas 30-50% of tall shrubs stand dead, although regeneration of Acacia georginae present in some areas (Neldner, 1991). |
1 Estimated extent is from version 13 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.
