Regional ecosystem details for 11.3.32
| Regional ecosystem | 11.3.32 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 2, (1) |
| Estimated extent1 | Pre-clearing 26000 ha; Remnant 2021 16000 ha |
| Short description | Allocasuarina luehmannii low open woodland on alluvial plains |
| Structure code | Low Open Woodland |
| Description | Allocasuarina luehmannii low open woodland. Emergent Corymbia dallachiana and C. erythrophloia may occur. A shrub layer may occur, typically dominated by Allocasuarina luehmannii with occasional Bursaria incana and/or Denhamia cunninghamii. A thin ground layer of perennial grasses or sedges may occur. Occurs on older floodplain complexes on Cainozoic alluvial plains. Not a Wetland. (BVG1M: 18a). |
| Supplementary description | Christian et al. (1953), Manton; Kutt and Kemp (1998); |
| 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: Maintain fire management of surrounding country so that wildfires will be very limited in extent and do not penetrate Lancewood forests. 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 | 11.3.32: Extensively cleared for cropping or modified by total grazing pressure. Subject to invasion by *Cryptostegia grandiflora (rubber vine), *Acacia nilotica (prickly acacia) and *Ziziphus mauritiana (chinee apple). |
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.
