Regional ecosystem details for 2.5.2
| Regional ecosystem | 2.5.2 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 5, (3) |
| Estimated extent1 | Pre-clearing 1000 ha; Remnant 2021 1000 ha |
| Short description | Atalaya hemiglauca and Ventilago viminalis low open woodland on plains on red and brown earths |
| Structure code | Low Open Woodland |
| Description | Atalaya hemiglauca and Ventilago viminalis low open woodland. Associated species may include Grevillea striata, Corymbia terminalis and Acacia spp. Shrubs may include Capparis spp., Cassia spp. and Carissa lanceolata. Grass layer includes Aristida spp. and Enneapogon spp. Trees are sometimes absent and the community forms a shrubland. Occurs on Tertiary and Quaternary sandsheets, usually overlying shales; red earths, light-textured brown soils and some solodised solonetzic and calcareous clays. Not a Wetland. (BVG1M: 27b). Vegetation communities in this regional ecosystem include: 2.5.2x1a: [RE not in use]²: This vegetation community is now mapped as 2.5.34a. Acacia cambagei low woodland, occasionally with Lysiphyllum cunninghamii and Atalaya hemiglauca. A sparse shrub layer may occur, including canopy species and Carissa lanceolata. The ground layer is sparse tussock grasses. Occurs on old, dissected high-level alluvial deposits (commonly gravelly). Red to brown texture contrast soils. Not a Wetland. (BVG1M: 26a). 2.5.2x1b: [RE not in use]²: This vegetation community is now mapped as 2.5.34a. Acacia cambagei low woodland. A sparse shrub layer of A. cambagei may occur. The ground layer is sparse tussock grasses. Occurs on gravelly, Quaternary residual deposits overlying Tertiary clay plains. Red to brown texture contrast soils. Not a Wetland. (BVG1M: 26a). 2.5.2x1c: [RE not in use]²: This vegetation community is now mapped as 2.5.34b. Acacia cambagei low woodland. A sparse shrub layer of A. cambagei and Carissa lanceolata may occur. The ground layer is sparse tussock grasses, including Aristida spp., Iseilema spp. and Astrebla spp. Occurs on plains and rises derived from deeply weathered siltstones in Tertiary lateritic landscapes. Not a Wetland. (BVG1M: 26a). 2.5.2x5: [RE not in use]²: This regional ecosystem is now mapped as 2.5.35. Aristida spp. and/or Enneapogon spp. open tussock grassland, occasionally with Iseilema spp. Emergent Atalaya hemiglauca may occur. Occurs on thin, gravelly Quaternary residual sand sheets, commonly overlying Tertiary clay plains. Pale brown sandy loams (commonly with surface gravel). Not a Wetland. (BVG1M: 30b). |
| Supplementary description | Perry et al. (1964), Monstraven, Percol, Donaldson, Donors, Julia, Korong, Manrika |
| Fire management guidelines | INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Do not burn deliberately. Manage surrounding fire-adapted areas to create landscape mosaic of burnt and unburnt to mitigate against impact of wildfires. ISSUES: Vulnerable to repeated, high intensity fires. However, low or discontinuous fuel loads protect these communities. The invasive grass buffel draws fires into Acacia communities to the detriment of these communities. Fire plays no role in regeneration of gidgee. |
| Comments | 2.5.2: Subject to high total grazing pressure leading to widespread wind erosion and scalding. 2.5.2x1a: May be invaded by exotic Cenchrus spp. Subject to clearing for grazing. 2.5.2x1b: May be invaded by exotic Cenchrus spp. Subject to clearing for grazing. 2.5.2x1c: May be invaded by exotic Cenchrus spp. Subject to clearing for grazing. 2.5.2x5: May be invaded by exotic Vachellia spp. |
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.
2 Superseded: Revision of the regional ecosystem classification removed this regional ecosystem code from use. It is included in the regional ecosystem description database because the RE code may appear in older versions of RE mapping and the Vegetation Management regulation.
