Regional ecosystem details for 9.11.28
| Regional ecosystem | 9.11.28 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 1, 2, 2.6, (2.9) |
| Estimated extent1 | Pre-clearing 18000 ha; Remnant 2021 18000 ha |
| Short description | Acacia shirleyi +/- Eucalyptus microneura +/- E. crebra woodland on metamorphic hills and outcrops |
| Structure code | Woodland |
| Description | Woodland to open forest of Acacia shirleyi (lancewood) +/- Eucalyptus microneura (Georgetown box) +/- E. crebra (narrow-leaved ironbark) (sens. lat.). The shrub layer is generally absent to mid-dense, though areas of Melaleuca citrolens (scrub teatree) with emergents of the above canopy taxa may occur. Occurs on undulating hills and rises and on metamorphosed sandstone outcrops. Not a Wetland. (BVG1M: 24a). Vegetation communities in this regional ecosystem include: 9.11.28a: Low woodland to open forest of Acacia shirleyi (lancewood) +/- Eucalyptus microneura (Georgetown box) +/- Corymbia pocillum +/- E. provecta (box). The shrub layer is generally absent to mid-dense and can include canopy species, Petalostigma banksii (smooth-leaved quinine), Melaleuca citrolens, Acacia spp., Carissa lanceolata (currantbush) and softwood species. The ground layer is grassy and dominated by Aristida spp., Schizachyrium spp. (firegrass) or Triodia spp. (spinifex). Occurs on rolling metamorphic hills. Not a Wetland. (BVG1M: 24a). 9.11.28b: Woodland to open forest of Acacia shirleyi (lancewood) and Eucalyptus crebra (narrow-leaved ironbark) (sens. lat.) +/- Corymbia erythrophloia (red bloodwood) or C. dallachiana (Dallachy's gum). The shrub layer varies from open to scattered shrubs of Melaleuca citrolens (scrub teatree), Gardenia vilhelmii (breadfruit), Petalostigma banksii (smooth-leaved quinine) and there is a sparse grassy ground layer, often with Schizachyrium fragile (firegrass) or sometimes Triodia spp. (spinifex). Occurs on undulating low hills and rises. Not a Wetland. (BVG1M: 24a). 9.11.28c: Low woodland to shrubland of Melaleuca citrolens (scrub teatree) often with emergent Acacia shirleyi (lancewood), Eucalyptus crebra (narrow-leaved ironbark) and E. microneura (Georgetown box) and the ground layer is often sparse and grassy. Undulating low hills and rises. Not a Wetland. (BVG1M: 21b). |
| Protected areas | Rungulla NP |
| Special values | 9.11.28: Potential habitat for NCA listed species: Labichea brassii. |
| Fire management guidelines | INTERVAL: 10-50 years generally following periods of high rainfall and sufficient grass growth. INTERVAL_MIN: 10. INTERVAL_MAX: 50. STRATEGY: Maintain fire management of surrounding country so that wildfires will be very limited in extent and do not penetrate Lancewood forests. ISSUES: Although fire promotes the germination of Lancewood seedlings, trees are killed by all but the lowest intensity fires. Lancewood trees typically require approximately 20 years before seedlings mature. Often the lack of grass layer inhibits fire spread into these forests, and they will regenerate after occasional wildfires. Damaged by repeated fires < 20 years. Manage surrounding woodlands so that wildfires do not burn large areas of Lancewood forest in a single event. |
| Comments | 9.11.28: Occurs in the west of the bioregion. 9.11.28a: Occurs west of the Newcastle Range in the west of the bioregion. 9.11.28b: Restricted to hills in the western bioregion between Gilberton and Kidston. 9.11.28c: Restricted to hills in the western bioregion between Gilberton and Kidston. |
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.
