Regional ecosystem details for 4.7.1
| Regional ecosystem | 4.7.1 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 3, 2, (4), (5), (5.2), (10.1) |
| Estimated extent1 | Pre-clearing 293000 ha; Remnant 2021 293000 ha |
| Short description | Acacia shirleyi +/- Eucalyptus spp. low woodland on scarps and margins of lateritic plateaus |
| Structure code | Low Woodland |
| Description | Acacia shirleyi low woodland to open scrub. A variable shrub layer may occur, including Eremophila latrobei, Indigofera leucotricha and Acacia spp. Emergent Eucalyptus thozetiana may occur. The ground stratum variable, with short grasses and hummock grasses. Occurs on scarp retreats and adjacent margins of dissected lateritic plateaus on a range of slopes (flat to vertical). Soils very shallow, acid, loamy lithosols with weathered with weathered rock exposed. Not a Wetland. (BVG1M: 24a). Vegetation communities in this regional ecosystem include: 4.7.1a: Acacia shirleyi low open woodland occasionally with Eucalyptus spp. The ground layer is Triodia spp. Occurs on residuals of deeply weathered Tertiary lacustrine mudstone and limestone (Old Cork Beds). Not a Wetland. (BVG1M: 24a). 4.7.1b: Acacia cyperophylla low woodland. The ground layer is dominated by Triodia spp. Occurs on rises and breakaways on deeply weathered Cretaceous siltstones and mudstones. Not a Wetland. (BVG1M: 24a). |
| Supplementary description | Neldner (1991), 6 (27); Wilson and Purdie (1990a), R1 (20) |
| Special values | 4.7.1: Regional ecosystems of high reptile species diversity. 4.7.1a: Vegetation community of high reptile species diversity. 4.7.1b: Vegetation community of high reptile species diversity. |
| Fire management guidelines | SEASON: Wet-early dry season. INTENSITY: Various. INTERVAL: Occasional wildfire plays a role in persistence. Not more than once every 30 years. This community is sensitive to frequent, high intensity fires. INTERVAL_MIN: 30. INTERVAL_MAX: 100. STRATEGY: To minimise the frequency of fire encroachment, burn adjacent areas under mild conditions when there is good soil moisture. Patch burning (<10% of area) reduces the extent of wildfire and ensures a variety of ages. ISSUES: Lancewood regenerates post-fire when there is a viable seed bank. However, frequent, high-intensity fires will have adverse impacts. |
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.
