Regional ecosystem details for 11.11.7
| Regional ecosystem | 11.11.7 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 14, (9), (18) |
| Estimated extent1 | Pre-clearing 62000 ha; Remnant 2021 51000 ha |
| Short description | Eucalyptus fibrosa subsp. fibrosa, Corymbia xanthope woodland on serpentinite |
| Structure code | Woodland |
| Description | Complex of vegetation on serpentinite hills and adjacent undulating colluvial aprons dominated by Eucalyptus fibrosa subsp. fibrosa +/- Corymbia xanthope +/- Corymbia spp. A variable shrub layer includes Acacia leptostachya, Hakea trineura, Xanthorrhoea spp. and Macrozamia serpentina. Occurs on steep mountains, undulating low hills and rises and colluvial aprons formed from Permian ultramafic rocks (serpentinite) including remnant lateritised surfaces in more elevated areas. Associated soils are shallow to moderately deep dark stony clays to clay loams. Not a Wetland. (BVG1M: 13c). Vegetation communities in this regional ecosystem include: 11.11.7a: Eucalyptus fibrosa subsp. fibrosa +/- Corymbia spp. +/- Eucalyptus spp. woodland with a diverse shrub layer including several endemic species. Occurring on undulating low hills and colluvial aprons. Not a Wetland. (BVG1M: 13c). 11.11.7x1: Eucalyptus fibrosa subsp. fibrosa +/- Corymbia spp. tall woodland with rainforest elements in the understorey. Often steep and rocky near-coastal hills, with abundant surface rock and bare pavement/soil. Not a Wetland. (BVG1M: 13c). |
| Supplementary description | Batianoff and Specht (1992); Forster and Barton (1995), Marlborough, Tungamull (in part); Batianoff and Singh (2001) |
| Protected areas | Princhester CP, North Pointer CP, Bukkulla CP, Flat Top Range RR, Mount Etna Caves NP |
| Special values | 11.11.7: Habitat for threatened flora species including Cycas ophiolitica, Capparis humistrata, Macrozamia serpentina, Corymbia xanthope, Hakea trineura, Capparis thozetiana, Neoroepera buxifolia, Pultenaea setulosa, Marsdenia brevifolia, Bursaria reevesii and the near threatened species Pimelea leptospermoides and Stackhousia tryonii. |
| Fire management guidelines | SEASON: Early dry season when there is good soil moisture, with some later fires in the early storm season or after good spring rains. INTENSITY: Various. INTERVAL: Most intervals between 5-10 years, with no shrubby woodlands receiving two consecutive intervals of < 6 years. INTERVAL_MIN: 5. INTERVAL_MAX: 10. STRATEGY: Once boundaries of the planned burning area are secure, ignite across the landscape in a patchwork, rather than continuous ignition strips. Use topographical features to help create a patchily burnt landscape. Where shrubby woodlands occur within a broader grassy landscape, attempt to burn the shrubby woodland during every second fire rotation in the grassy woodland, by burning early breaks around the shrubby areas. In sites with a history of wildfires recurring within 5 years, patchy burning in a few small strategic locations at 3 or 4 year intervals may reduce the incidence of extensive wildfires, while ensuring most shrubby woodland areas remain unburnt for > 5 years. ISSUES: Shrubby woodlands require longer fire intervals than grassy woodlands, because of the presence of fire-killed shrubs and the time required for post-fire regrowth to return to a mature structure. The seedlings of many fire-killed shrubs (such as some wattles) require 5 years or more before they mature. The creation of a fine-scale patchy mosaic can be more difficult to achieve in shrubby compared to grassy woodlands. Ensure seedlings of fire-killed shrubs mature and persist in the woodland; ensure several years of mature shrubby woodland structure before the subsequent fire. |
| Comments | 11.11.7a: Vegetation community 11.11.7a is subject to clearing and logging. 11.11.7x1: Areas of 11.11.7x1 are extensively covered by mining leases and are not represented in protected areas. Areas of 11.11.7x1 are extensively covered by mining leases and are not represented in protected areas. |
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.
