Regional ecosystem details for 9.5.7
| Regional ecosystem | 9.5.7 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 2 |
| Estimated extent1 | Pre-clearing 15000 ha; Remnant 2021 15000 ha |
| Short description | Eucalyptus crebra and Corymbia erythrophloia +/- C. polycarpa woodland on kandosols |
| Structure code | Woodland |
| Description | Woodland of Eucalyptus crebra (narrow-leaved ironbark) (sens. lat.), Corymbia erythrophloia (red bloodwood) +/- C. polycarpa (long-fruited bloodwood). The shrub layer is absent to very sparse. The ground layer is dominated by Themeda triandra (kangaroo grass). Occurs on red kandosols on Tertiary plateaus. Not a Wetland. (BVG1M: 18b). Vegetation communities in this regional ecosystem include: 9.5.7a: Woodland to (occasionally) open forest of Eucalyptus crebra (narrow-leaved ironbark) or E. whitei (White's ironbark) and Corymbia erythrophloia (red bloodwood) +/- C. polycarpa (long-fruited bloodwood) and/or C. clarksoniana (Clarkson's bloodwood) +/- C. dallachiana (Dallachy's gum) with Erythrophleum chlorostachys (Cooktown ironwood) sometimes in a scattered sub-canopy. The shrub layer is absent to very open and can include Persoonia falcata (geebung), Petalostigma spp. (quinine), Grevillea parallela (silver oak), Acacia spp. and juvenile canopy species. The mid-grassy ground layer is dominated by Themeda triandra (kangaroo grass). Occurs on Tertiary plateaus. Not a Wetland. (BVG1M: 18b). 9.5.7b: Woodland of Eucalyptus crebra (narrow-leaved ironbark) +/- Callitris intratropica (cypress pine) +/- E. provecta (box) +/- Corymbia polycarpa (long-fruited bloodwood). A mixed open shrub layer can contain Gardenia vilhelmii (breadfruit), Grevillea parallela (silver oak), Petalostigma banksii (smooth-leaved quinine) and Carissa lanceolata (currantbush). The grassy cover is dominated by Aristida spp. Occurs on rises and low hills. Not a Wetland. (BVG1M: 18b). |
| Protected areas | Canyon 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 | 9.5.7: Differs from 9.5.3 in the subdominant species, particularly the presence of C. polycarpa. Eucalyptus similis may occur in ecotones with 9.5.1. Occurs on Newcastle Range in the west of the bioregion. 9.5.7a: Restricted to Newcastle range in the west of the bioregion. 9.5.7b: Restricted to Newcastle range in the west of the bioregion. |
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.
