Regional ecosystem details for 9.12.31
| Regional ecosystem | 9.12.31 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 3, 2, (7.4), (7.7) |
| Estimated extent1 | Pre-clearing 11000 ha; Remnant 2021 10000 ha |
| Short description | Eucalyptus leptophleba, Corymbia clarksoniana and E. crebra +/- C. dallachiana woodland on igneous rocks |
| Structure code | Woodland |
| Description | Woodland of Eucalyptus leptophleba (Molloy red box), Corymbia clarksoniana (Clarkson's bloodwood) and E. crebra (narrow-leaved ironbark) or Eucalyptus cullenii (Cullen's ironbark). A sub-canopy can occur and include canopy species and Grevillea glauca (bushman's clothes peg). The shrub layer can be absent to open. The dense ground layer is grassy. Occurs on acid igneous ills often on Quaternary weathered rock debris over the igneous geology. Not a Wetland. (BVG1M: 9b). Vegetation communities in this regional ecosystem include: 9.12.31a: Woodland of Eucalyptus leptophleba (Molloy red box) and Corymbia clarksoniana (Clarkson's bloodwood) with E. crebra (narrow-leaved ironbark) or E. cullenii (Cullen's ironbark) and C. dallachiana (Dallachy's gum) often codominant. An open sub-canopy can occur and include canopy species, Grevillea glauca (bushman's clothes peg), and Acacia spp. The open shrub layer includes Grevillea spp., Planchonia careya (cocky apple), Melaleuca nervosa (woodland paperbark), Petalostigma pubescens (quinine) and Acacia spp. The dense ground layer is grassy and dominated by Themeda triandra, Heteropogon triticeus (giant speargrass), H. contortus (black speargrass) and Mnesithea rottboellioides (northern canegrass). Occurs on acid igneous hills. Not a Wetland. (BVG1M: 9b). 9.12.31b: Woodland to open forest of Eucalyptus crebra (narrow-leaved ironbark) and Corymbia clarksoniana (Clarkson's bloodwood) +/- C. dallachiana (Dallachy's gum) +/- E. leptophleba (Molloy red box) +/- C. citriodora subsp. citriodora (lemon-scented gum) +/- C. tessellaris (Moreton Bay ash). An open to mid-dense sub-canopy layer can contain canopy species, Melaleuca viridiflora (broad-leaved paperbark) and Grevillea spp. The low shrub layer is open to scattered and often contains Persoonia falcata, M. nervosa, Grevillea spp. and Denhamia cunninghamii (yellowberry bush). The ground layer is grassy and dominated by Themeda triandra (kangaroo grass), Heteropogon triticeus (giant speargrass) and Mnesithea rottboellioides (northern canegrass). Occurs on acid igneous hills. Not a Wetland. (BVG1M: 9b). |
| Special values | 9.12.31: Potential habitat for NCA listed species: Peristylus banfieldii, Spathoglottis paulinae. |
| 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 | 9.12.31: Occurs around and to the north of Mareeba in the central bioregion. 9.12.31a: Occurs between Mareeba and Maitland Downs in the north of the bioregion. 9.12.31b: Occurs on hills south of Mareeba in the central east 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.
