Regional ecosystem details for 7.3.39
| Regional ecosystem | 7.3.39 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Contains Palustrine |
| Biodiversity status | Endangered |
| Subregion | 5, 4, 6, (9), (9.4) |
| Estimated extent1 | Pre-clearing 2000 ha; Remnant 2021 1000 ha |
| Short description | Eucalyptus tereticornis +/- E. platyphylla +/- Corymbia intermedia +/- Lophostemon suaveolens open woodland to open forest and associated sedgelands and grasslands on broad drainage depressions of uplands |
| Structure code | Open Woodland |
| Description | Eucalyptus tereticornis (forest red gum) +/- E. platyphylla (poplar gum) +/- Corymbia intermedia (pink bloodwood) +/- Lophostemon suaveolens (swamp mahogany) open woodland to open forest, and associated sedgelands and grasslands. Broad swampy drainage depressions of uplands. Contains Palustrine. (BVG1M: 9e). Vegetation communities in this regional ecosystem include: 7.3.39a: Eucalyptus tereticornis open woodland. Small groves of E. platyphylla occur as a lower layer in some areas. Seasonal swamp of broad drainage lines in uplands. Moist rainfall zone. Not a Wetland. (BVG1M: 9e). 7.3.39b: Closed sedgeland. Permanently wet swamps of drainage lines in upland situations. Palustrine. (BVG1M: 34f). 7.3.39c: Ephemeral freshwater swamp. Drainage depressions in upland situations. Palustrine. (BVG1M: 34f). 7.3.39d: Mixed grassland-sedgeland complex with scattered and clumped shrubs of Lophostemon suaveolens and Xanthorrhoea johnsonii. Alluvium in uplands. Not a Wetland. (BVG1M: 34c). |
| Supplementary description | Stanton and Stanton (2005), G136, G137, R137, B136, A137, A136, B137, W136, G62 in part (Qld Herbarium and WTMA (2005) G62a), A62 in part (Qld Herbarium and WTMA (2005) A62a), L62 in part (Qld Herbarium and WTMA (2005) L62a). |
| Protected areas | Kirrama NP, Curtain Fig NP, Hasties Swamp NP, Girringun NP, Mount Windsor NP, Baldy Mountain FR, Koombooloomba South FR |
| Special values | 7.3.39: Potential habitat for NCA listed species: Oenanthe javanica. |
| Fire management guidelines | SEASON: Cool, dry season (June-Sep). b, c, d: Grassland: Aug-Dec. Sedgeland: Oct-Dec (occasionally Sep). INTENSITY: Low to moderate. b, c, d: Variable, depending on fuel. INTERVAL: 2-5 years. b, c, d: Grassland: 3-5 years. Sedgeland: 10-20 years. There will be practical difficulties in attempting to burn grassland and sedgeland at different intervals. INTERVAL_MIN: 2. INTERVAL_MAX: 20. STRATEGY: Mosaic burn < 30%. Begin burning early in the fire season, with progressive patch fires burnt through the year. Stop burning when the network of fires and other breaks is sufficient to impede fire spread later in the year. Storm-burning may be used to add further diversity to the fire mosaic. b, c, d: Entire continuous areas are likely to burn at any one time. Burn 25-30% of these communities in WET in any one year. Attempt to time burning when water level is high enough to cover both peat and sedge bases. Protect from wildfire or manage surrounding country to reduce the potential of fire incursion. ISSUES: Ignition is most likely during hot, dry season (Oct - Jan). These fires are typically high intensity fires that can be difficult to control. Maintaining a fire mosaic will ensure protection of animal habitats and mitigate against wildfires. b, c, d: Peat fires may be a natural component of these systems and may be useful approximately every 20 years to open up channels in the swamp. However, peat should not be burnt deliberately, but will occasionally burn owing to dryness of substrate. Peat fires can cause smoke for extended periods of time. |
| Comments | 7.3.39: Scattered across western parts of the bioregion. |
1 Estimated extent is from version 13.1 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.
