Regional ecosystem details for 5.6.4
| Regional ecosystem | 5.6.4 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 8, 7, 9, 2, (5), (6), (4), (12), (4.2), (6.10), (6.11), (13) |
| Estimated extent1 | Pre-clearing 1087000 ha; Remnant 2021 1087000 ha |
| Short description | Atalaya hemiglauca +/- Acacia aneura +/- Acacia spp. +/- Corymbia terminalis low open woodland on reticulate sand dunes |
| Structure code | Tall Shrubland |
| Description | Various trees and tall shrubs occur forming a distinct but discontinuous canopy. Acacia aneura usually predominates, but in places Atalaya hemiglauca, Hakea leucoptera and Ventilago viminalis may be co-dominant. Usually there is no well defined, low shrub layer, but in places, dense stands of Dodonaea viscosa subsp. angustissima and Eremophila sturtii may occur. The ground layer is seasonally variable and composed of grasses and forbs. The composition and structural formation of this association varies considerably. Occurs on low dunes with sloping flanks (less than 3%). The dunes are frequently reticulate and usually overlie recent clay alluvia. Often concentrated in areas fringing large lakes or flood plains. Soils are reddish-brown, coarse sands, or deep red, earthy to siliceous sands. Ferruginous hardpans are often present. Not a Wetland. (BVG1M: 23a). Vegetation communities in this regional ecosystem include: 5.6.4a: [RE not in use]²: This vegetation community is now mapped as 5.6.4. Atalaya hemiglauca +/- Acacia aneura +/- Acacia spp. +/- Corymbia terminalis tall open shrubland on sand dunes. Occurs on low dunes with sloping flanks (less than 3%). The dunes are frequently reticulate and usually overlie recent clay alluvia. Often concentrated in areas fringing large lakes or floodplains. Soils are reddish-brown, coarse sands, or deep red, earthy to siliceous sands. Ferruginous hardpans are often present. Not a Wetland. (BVG1M: 23a). |
| Supplementary description | Boyland (1984), 6; Dawson (1974), D4, D6 (7). |
| Protected areas | Welford NP |
| Special values | 5.6.4: High fauna diversity. |
| Fire management guidelines | SEASON: Various (wet season or winter). INTENSITY: Low - moderate. INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Aim to exclude fire by fuel reduction in adjacent vegetation communities where possible. Undertake partial burns when necessary to reduce fuel loads and protect against severe wildfire. Burn with high soil moisture (i.e., after rain/storms) or in winter. ISSUES: Winter and/or wet/storm season burns can be used. Some Acacia spp. are fire sensitive (e.g., A. aneura, A. georginae, A. cambagei) and may be killed by high intensity fire. |
| Comments | 5.6.4: RE 5.6.4a was amalgamated into this RE. Heavily grazed by rabbits resulting in a decrease in ground layer floristic diversity. |
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.
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.
