Regional ecosystem details for 11.5.16
| Regional ecosystem | 11.5.16 |
|---|---|
| Vegetation Management Act class | Endangered |
| Wetlands | Palustrine |
| Biodiversity status | Endangered |
| Subregion | 6, 11, 16, (5) |
| Estimated extent1 | Pre-clearing 15000 ha; Remnant 2021 4000 ha |
| Short description | Acacia harpophylla and/or Casuarina cristata open forest in depressions on Cainozoic sand plains and remnant surfaces |
| Structure code | Open Forest |
| Description | Casuarina cristata and/or Acacia harpophylla open forest. Occurs in depressions on Cainozoic sandplains. Associated with gilgai with 1 m local relief and 5-6 m in diameter. Palustrine. (BVG1M: 25a). Vegetation communities in this regional ecosystem include: 11.5.16a: [RE not in use]²: This vegetation community is now mapped as 11.5.16. Acacia harpophylla open forest with softwood scrub species. Occurs on sandy loam outwash (apron / piedmont slope) from sandstone ranges, on Wietalaba. Not a Wetland. (BVG1M: 25a). |
| Supplementary description | Fensham (pers comm) |
| Protected areas | Junee NP |
| Special values | 11.5.16: Potential habitat for NCA listed species: Solanum elachophyllum. |
| Fire management guidelines | INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Do not target for fires. Control fuel loads in the surrounding vegetation. ISSUES: Casuarina cristata is fire sensitive, although germination can be good in bare areas. Brigalow is soft-seeded, so germination is not promoted by fire. Brigalow is only tolerant of mild fires trickling underneath, and can be damaged or killed by moderate to high intensity fires. Exotic grasses, such as Buffel grass, carry intense fires into these communities and can cause tree deaths. Control of fuel loads in the surrounding vegetation is important. Ensure no damage to Acacia trees from fires. |
| Comments | 11.5.16: Occurs as small patches in depressions of alluvial origin (land zone 3) across intact Tertiary surfaces. Habitat for water snails and other wetland fauna. RE 11.5.16a was amalgamated into this RE. Mainly occurs in the Nebo-Comet part 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.
2 Superseded: Revision of the regional ecosystem classification removed this regional ecosystem code from use.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.
