Regional ecosystem details for 9.12.11
| Regional ecosystem | 9.12.11 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 2, (1), (4), (5), (2.9) |
| Estimated extent1 | Pre-clearing 161000 ha; Remnant 2021 160000 ha |
| Short description | Eucalyptus crebra and/or E. whitei +/- Corymbia erythrophloia open woodland on steep to rolling hills on igneous rocks |
| Structure code | Open Woodland |
| Description | Very open woodland to woodland of Eucalyptus crebra (narrow-leaved ironbark) and/or E. whitei (White's ironbark) +/- Corymbia erythrophloia (red bloodwood) +/- C. dallachiana (Dallachy's gum) +/- C. clarksoniana (Clarkson's bloodwood). C. erythrophloia and/or C. dallachiana are always present as subdominants. A sparse sub-canopy layer of the canopy species +/- Grevillea glauca (bushman's clothes peg) +/- Brachychiton spp. may be present. The absent to open shrub-layer includes Denhamia cunninghamii (yellowberry bush), Gardenia vilhelmii (breadfruit), Petalostigma banksii (smooth-leaved quinine), Bursaria incana (prickly pine), Grevillea parallela (silver oak) and Carissa spp. The ground layer is dominated by the grasses Heteropogon contortus (black speargrass) and Aristida spp. Occurs on rolling hills to steep hills on acid igneous rocks. Not a Wetland. (BVG1M: 13c). |
| Protected areas | Rungulla NP, Rungulla RR |
| Fire management guidelines | SEASON: Early dry season and storm time. Timing of early dry season burns will vary depending on seasonal conditions; it may sometimes commence as early as March. INTENSITY: Low, with occasional moderate. INTERVAL: 2-5 year intervals with longer unburnt patches. Fuel loads tend to reach a maximum after 2-3 years. Ensure burn programs occur after big wet season as fuel loads will be higher than average. INTERVAL_MIN: 2. INTERVAL_MAX: 5. STRATEGY: Burn less than 40% across the landscape in any year. Burning through the early dry season will produce a network of burns that will contain later fires. Fires will only gain in intensity as the dry season progresses. Grass composition can be affected by timing and intensity of fire. Occasional moderate fire will help to reduce overabundant trees that could potentially suppress ground layer vegetation. ISSUES: Leave areas of long unburnt vegetation to maintain a diversity of habitat for wildlife. |
| Comments | 9.12.11: Distinguished from 9.12.1 which tends to be on intermediate volcanics. Occurs from the southern Newcastle Range to Chudleigh Park in the central west of the bioregion. Degraded by grazing pressure. |
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.
