Regional ecosystem details for 11.5.1
| Regional ecosystem | 11.5.1 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 32, 27, 26, (22), (33), (28), (31), (29), (16), (9), (11), (30), (34), (25), (18), (12.6), (36) |
| Estimated extent1 | Pre-clearing 775000 ha; Remnant 2021 477000 ha |
| Short description | Eucalyptus crebra and/or E. populnea, Callitris glaucophylla, Angophora leiocarpa, Allocasuarina luehmannii woodland on Cainozoic sand plains and/or remnant surfaces |
| Structure code | Woodland |
| Description | Eucalyptus crebra and/or E. populnea +/- Angophora leiocarpa +/- E. woollsiana (in south of bioregion) woodland to open woodland. A low tree layer dominated by Allocasuarina luehmannii +/- Melaleuca decora +/- Callitris glaucophylla +/- C. endlicheri is usually present. In some areas Allocasuarina luehmannii low woodland is the dominant layer. The ground cover is usually sparse and dominated by perennial tussock grasses. Occurs on flat to gently undulating plains formed from weathered sandstones. Duplex soils with sandy surfaces. Not a Wetland. (BVG1M: 18b). Vegetation communities in this regional ecosystem include: 11.5.1a: Eucalyptus populnea woodland with Allocasuarina luehmannii low tree layer. Occurs on flat to gently undulating plains formed from weathered sandstones. Duplex soils with sandy surfaces. Not a Wetland. (BVG1M: 17a). |
| Supplementary description | Dawson (1972), 15-18; Galloway et al. (1974), LU25, LU30 (in part), LU 31; Mullins (1980), Broadwater, Crowder, Booroondoo; Neldner (1984), 14a; Speck et al. (1968), Wooroonah, Redcliffe; Taylor and Grimshaw (1994-95), Goondiwindi MU11A, MU9A, MU16A, Dalb |
| Protected areas | Wondul Range NP, Stones Country RR, Lake Broadwater CP, Bendidee NP, Lake Broadwater RR |
| Special values | 11.5.1: Habitat for threatened plant species including Acacia handonis and Acacia argyrotricha. |
| Fire management guidelines | SEASON: Late wet to early dry season when there is good soil moisture. Early storm season or after good spring rains. INTENSITY: Low to moderate. INTERVAL: 6 -10 years. INTERVAL_MIN: 6. INTERVAL_MAX: 10. STRATEGY: Restrict to less than 30-60% in any year. Rotate burns in mosaic patches. Maintain fire management of surrounding country so that wildfires will be very limited in extent. Burn under conditions of good soil moisture and when plants are actively growing. ISSUES: Maintaining a fire mosaic will ensure protection of fauna habitats (such as dense stands of A. luehmannii) and mitigate against wildfires. Allocasuarina luehmannii (bull oak) can be both killed by fire and regenerate from seed following fire. Bull oak thickening/creation of whipstick communities may be controlled with planned low intensity burns. Drought index will help deliver required guideline. Jewel butterfly is significant in this community, but the jewel butterfly needs thick leaf litter/mature bull oak; so high intensity fire (or fire that removes the litter layer) could be detrimental to survival. Allocasuarina is also an important food source for glossy-black cockatoo. |
| Comments | 11.5.1: Often intermixes with E. woollsiana/E. moluccana dominated vegetation (regional ecosystem 11.5.20) sometimes merging into alluvial areas (regional ecosystem 11.3.18 or 11.3.26). Small unmapped areas of Melaleuca nodosa with scattered shrubs including Xanthorrhoea sp. and a Triodia scariosa ground layers (Isbell 1957) occur in association with this regional ecosystem. |
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.
