Regional ecosystem details for 2.3.23
| Regional ecosystem | 2.3.23 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Extent in reserves | This regional ecosystem is now mapped as 2.3.21j. |
| Short description | Eucalyptus leptophleba and Corymbia confertiflora woodland on sandy alluvial terraces and levees |
| Structure code | Woodland |
| Description | [RE not in use]²: This regional ecosystem is now mapped as 2.3.21j. Eucalyptus leptophleba, Corymbia confertiflora, C. polycarpa and C. bella woodland. Occurs on low-level terraces and levees on younger Quaternary alluvium of upper tributary watercourses; alluvial sands and loams. Not a Wetland. (BVG1M: 16b). Vegetation communities in this regional ecosystem include: 2.3.23a: [RE not in use]²: This vegetation community is now mapped as 2.3.21j. Eucalyptus leptophleba and/or Corymbia polycarpa and/or C. confertiflora woodland (predominantly Eucalyptus leptophleba), commonly with Eucalyptus microtheca, Eucalyptus camaldulensis, Lysiphyllum cunninghamii Erythrophleum chlorostachys and Eucalyptus microneura. A sparse shrub layer may occur, including Acacia torulosa, Melaleuca viridiflora, Terminalia spp. and Grevillea striata. The ground layer is tussock grasses, including Aristida hygrometrica, Chrysopogon sp. and Eragrostis spp. Occurs on levees and minor alluvial plains of upper tributary watercourses. Orange to brown sandy loam soils. Not a Wetland. (BVG1M: 16b). 2.3.23b: [RE not in use]²: This vegetation community is now mapped as 2.3.68. Mixed woodland to open forest, with combinations of the species Eucalyptus platyphylla, Eucalyptus brassiana, Corymbia polycarpa, Eucalyptus leptophleba, C. tessellaris, C. confertiflora, Eucalyptus tetrodonta. Erythrophleum chlorostachys and Melaleuca viridiflora occasionally occur in the canopy. A lower tree or shrub layer commonly occurs, including Melaleuca spp., Grevillea spp. and Planchonia careya. The ground layer is tussock grasses, including Heteropogon spp., Themeda spp. and Panicum spp. Occurs on minor Quaternary alluvial plains in dissected sandstone landscapes. Grey to brown sandy loam soils. Not a Wetland. (BVG1M: 16b). 2.3.23x1a: [RE not in use]²: This vegetation community has been amalgamated into 2.3.71. Eucalyptus microneura low open woodland, occasionally with Eucalyptus leptophleba, Corymbia erythrophloia, Corymbia confertiflora, Terminalia spp., Erythrophleum chlorostachys. Scattered shrubs may occur. The ground layer is tussock grasses, including Enteropogon ramosus, Capillipedium parviflorum and Aristida spp. In areas of deeper soil development or higher moisture content Eucalyptus leptophleba may be co-dominant. Occurs on Quaternary undulating alluvial plains of minor watercourses. Not a Wetland. (BVG1M: 18d). 2.3.23x1b: [RE not in use]²: This vegetation community has been amalgamated into 2.3.71. Eucalyptus microneura woodland, commonly with Eucalyptus leptophleba and Corymbia polycarpa. A shrub layer may occur, including Gardenia vilhelmii and Carissa lanceolata. The ground layer is tussock grasses, commonly Aristida spp. Occurs on levees and Quaternary alluvial plains of minor watercourses. Deep alluvial soils. Not a Wetland. (BVG1M: 18d). |
| Supplementary description | Perry et al. (1964), Esmeralda, Abingdon, Ortona |
| Special values | 2.3.23: Provincial refuge for some fauna and flora. 2.3.23a: Provincial refuge for some woodland flora and fauna. 2.3.23b: Supports locally uncommon plant species. The only mappable occurrence of Eucalyptus brassiana and E. platyphylla in the bioregion. |
| Fire management guidelines | SEASON: Progressive early to mid-dry season, followed by storm time. Begin burning early in the fire season, with progressive patch fires burnt through the year. INTENSITY: Various. INTERVAL: 1-5 years. INTERVAL_MIN: 1. INTERVAL_MAX: 5. STRATEGY: Burn less than 30% in any year. No buffer necessary as this is a fire tolerant community. ISSUES: Maintaining a fire mosaic will ensure protection of animal habitats and mitigate against wildfires. |
| Comments | 2.3.23: Survey required to verify condition. Subject to high total grazing pressure and weed invasion by *Cryptostegia grandiflora (rubber vine). 2.3.23a: Subject to degradation from high total grazing pressure. 2.3.23b: A rare vegetation community with limited extent. Occurs on Blackdown Stn and Torwood Stn. 2.3.23x1a: A poorly surveyed vegetation community. Minor watercourses extending from the Einasleigh Uplands bioregion. 2.3.23x1b: A poorly surveyed vegetation community. Mainly along Gilbert and Langdon Rivers. |
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.
