Regional ecosystem details for 11.3.15
| Regional ecosystem | 11.3.15 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Contains Palustrine |
| Biodiversity status | Of concern |
| Subregion | 37, 36, 35, (38), (34), (19) |
| Estimated extent1 | Pre-clearing 90000 ha; Remnant 2021 24000 ha |
| Short description | Eucalyptus coolabah, Acacia stenophylla, Duma florulenta fringing open woodland on alluvial plains |
| Structure code | Open Woodland |
| Description | Eucalyptus coolabah open woodland to low open woodland. There is a dense low shrub layer of Duma florulenta. A sparse Acacia stenophylla and Eremophila bignoniiflora shrublayer is usually present and may form a distinct layer in some areas. Occurs on and adjacent to frequently flooded channels within Cainozoic alluvial floodplains. Soils are deep, grey-brown, heavy cracking clays, which are neutral to mildly alkaline and remain wet for long periods. Contains Palustrine. (BVG1M: 16c). Vegetation communities in this regional ecosystem include: 11.3.15a: Duma florulenta low shrubland +/- scattered Eucalyptus coolabah trees. Occurs on frequently flooded open depressions and channels within Cainozoic alluvial floodplains. Palustrine. (BVG1M: 34b). |
| Supplementary description | Galloway et al. (1974), LU74, 76 (in part); Neldner (1984), 32d |
| Protected areas | Culgoa Floodplain NP |
| Fire management guidelines | INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Manage surrounding country. ISSUES: This community does not need fire. Flood events drive recruitment of coolabah. Hollow trees are critical habitat. High intensity and extensive fires will degrade vegetation structure and destroy animal habitats. Restrict extent and intensity of fires. |
| Comments | 11.3.15: This regional ecosystem is differentiated from 11.3.3 by its occurrence on lower lying more frequently flooded areas with heavier clay soils and the occurrence of Duma florulenta, Eremophila bignoniiflora and Acacia stenophylla in the mid-layer. Confined largely to the south-western part of the bioregion. Impacted by total grazing pressure and past disturbance. |
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.
