Regional ecosystem details for 11.3.23
| Regional ecosystem | 11.3.23 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Contains Riverine |
| Biodiversity status | Endangered |
| Subregion | 31, (12.1) |
| Estimated extent1 | Pre-clearing 2000 ha; Remnant 2021 700 ha |
| Short description | Eucalyptus conica, E. nobilis, E. tereticornis, Angophora floribunda woodland on alluvial plains. Basalt derived soils |
| Structure code | Woodland |
| Description | Eucalyptus conica, E. tereticornis, Angophora floribunda or rarely E. melliodora or E. nobilis woodland to open woodland. Occurs on Cainozoic alluvial plains. Contains Riverine. (BVG1M: 15b). |
| Supplementary description | Young and McDonald (1989), 9o 10d |
| Protected areas | Main Range NP |
| Special values | 11.3.23: Eucalyptus conica and E. nobilis are at the northern limits of their geographical range. |
| 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% in any year. Burn under conditions of good soil moisture and when plants are actively growing. Sometimes a small amount of wind may move the fire front quickly so that burn intensity is not too severe to destroy habitat trees. ISSUES: Burn interval for conservation purposes will differ from that for grazing purposes; the latter being much shorter. Management of this vegetation type should be based on maintaining vegetation composition, structural diversity, fauna habitats (in particular hollow-bearing trees and logs) and preventing extensive wildfire. Maintaining a fire mosaic will help ensure protection of habitat and mitigate against wildfires. Fire can control shrub invasives (e.g., Eremophila spp. and A. stenophylla in the red soil country in particular). Fire will also control cypress. Low to moderate intensity burns with good soil moisture are necessary to minimise loss of hollow trees. Avoid burning riparian communities as these can be critical habitat for some species. Culturally significant (scar) trees may need protection, such as rake removal of ground fuels. Planned burns have traditionally been carried out in the winter dry season; further research required. |
| Comments | 11.3.23: The ground layer is often highly modified by total grazing pressure and remaining areas have been highly fragmented. |
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.
