Regional ecosystem details for 1.3.6
| Regional ecosystem | 1.3.6 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Riverine |
| Biodiversity status | No concern at present |
| Subregion | 3, 2, 1, (4.2), (2.8), (2.2), (4.7), (2.3), (4.3), (4.1) |
| Estimated extent1 | Pre-clearing 76000 ha; Remnant 2021 76000 ha |
| Short description | Corymbia aparrerinja, Corymbia terminalis woodland on sandy levees |
| Structure code | Woodland |
| Description | Woodland and low woodland of Corymbia aparrerinja and C. terminalis. Occurs on terraces and floodplains on Quaternary alluvium; alluvial soils, some earths and deep yellow podzolics. Riverine. (BVG1M: 19b). Vegetation communities in this regional ecosystem include: 1.3.6a: Corymbia aparrerinja woodland often with C. terminalis, Eucalyptus leucophylla, E. camaldulensis, Lysiphyllum cunninghamii and/or Acacia cambagei with a sparse ground layer of tussock grasses with Triodia longiceps in some places. Occurs on river terraces. Riverine. (BVG1M: 19b). 1.3.6b: Mixed woodland including Corymbia terminalis, Corymbia aparrerinja, Eucalyptus pruinosa, Corymbia polycarpa, Corymbia confertiflora, Eucalyptus leucophylla, Eucalyptus camaldulensis and Lysiphyllum cunninghamii, often with a mixed second tree layer of the same species. The variable shrub layer can be quite dense and is generally dominated by Flueggea virosa and Acacia spp. There is a dense tussock grass ground layer. Occurs on minor drainage lines, levees and floodplains on Quaternary alluvium. Riverine. (BVG1M: 19b). 1.3.6c: Corymbia aparrerinja woodland with a sparse shrub layer of Carissa lanceolata and mid-dense ground layer of tussock grasses dominated by Chrysopogon fallax and Bothriochloa ewartiana. Occurs on smaller drainage lines in landscapes of low relief. Riverine. (BVG1M: 19b). 1.3.6d: [RE not in use]²: This vegetation community occurs in the Mitchell Grass Downs bioregion and is mapped as 4.5.5c. Corymbia aparrerinja and Atalaya hemiglauca open woodland with Grevillea striata and a mixed shrub layer of Acacia spp., Senna spp., Eremophila spp. and Carissa lanceolata and ground layer of tussock grasses and/or Triodia longiceps. Occurs on smaller drainage lines in landscapes of low relief. Not a Wetland. (BVG1M: 19b). 1.3.6e: Corymbia aparrerinja and Corymbia polycarpa woodland. Occurs on levees and floodplains of Mingera Creek and associated alluvial systems. Riverine. (BVG1M: 19b). 1.3.6x1: [RE not in use]²: This regional ecosystem is now mapped as 1.3.13. Woodland of Eucalyptus leucophylla and/or Eucalyptus pruinosa subsp. pruinosa, often with Corymbia terminalis, Acacia cambagei, Atalaya hemiglauca and C. aparrerinja with a mixed ground layer of tussock grasses and Triodia spp. Occurs on recent alluvial terraces of larger watercourses and in channel deposits of ephemeral streams. Riverine. (BVG1M: 19b). 1.3.6x1a: [RE not in use]²: This vegetation community is now mapped as 1.3.13a. Eucalyptus leucophylla and/or Eucalyptus pruinosa subsp. pruinosa woodland often with Corymbia terminalis, Eucalyptus camaldulensis and Acacia cambagei with a sparse mixed shrub layer and a sparse ground layer dominated by Bothriochloa ewartiana and Sehima nervosum, often with Triodia longiceps. Occurs on ephemeral watercourses with active beds. Not a Wetland. (BVG1M: 19b). 1.3.6x1b: [RE not in use]²: This vegetation community is now mapped as 1.3.13a. Eucalyptus leucophylla woodland with a mid-dense ground layer dominated by tussock grasses. Occurs on narrow terraces. Not a Wetland. (BVG1M: 19b). 1.3.6x1c: [RE not in use]²: This vegetation community is now mapped as 1.3.4b. Acacia cambagei and Eucalyptus leucophylla woodland with a sparse ground layer of tussock grasses and Triodia longiceps. Occurs on terraces. Not a Wetland. (BVG1M: 26a). 1.3.6x1d: [RE not in use]²: This vegetation community is now mapped as 1.3.13a. Eucalyptus leucophylla and/or Eucalyptus pruinosa subsp. pruinosa open woodland, often with Corymbia terminalis, Acacia cambagei, Atalaya hemiglauca, Grevillea striata and C. aparrerinja, with a scattered shrub layer and mid-dense ground layer of tussock grasses and Triodia spp. Occurs on wide terraces adjacent major rivers and other broad alluvial areas. Not a Wetland. (BVG1M: 19b). 1.3.6x1e: [RE not in use]²: This vegetation community is now mapped as 1.3.10. Mixed species grassland dominated by Dichanthium spp., Iseilema spp., Eulalia aurea and/or Bothriochloa ewartiana. Occurs on shallow clayey alluvium. Not a Wetland. (BVG1M: 31a). 1.3.6x1f: [RE not in use]²: This vegetation community is now mapped as 1.3.13b. Eucalyptus leucophylla and Corymbia terminalis and/or C. aparrerinja open forest with a Flueggea virosa dominated shrub layer and Dichanthium fecundum dominated ground layer. Occurs on shallow drainage lines through older alluvium. Not a Wetland. (BVG1M: 19b). 1.3.6x1g: [RE not in use]²: This vegetation community is now mapped as 1.3.15. Eucalyptus pruinosa subsp. pruinosa low open woodland to woodland. Eucalyptus leucophylla, Corymbia terminalis, Corymbia aparrerinja and Lysiphyllum cunninghamii frequently appear and can be dominant in small areas. A mixed shrub layer is usually present with a ground layer of tussock grasses. Occurs on shallow drainage lines through older alluvium. Not a Wetland. (BVG1M: 19c). 1.3.6x2: [RE not in use]²: This regional ecosystem is now mapped as 1.3.14. Corymbia terminalis low open woodland often with Lysiphyllum cunninghamii and/or Eucalyptus leucophylla and/or Eucalyptus camaldulensis. A second tree layer of Terminalia aridicola and/or Hakea arborescens is usually present with a mixed shrub layer including Acacia spp., Carissa lanceolata, Grewia savannicola, Senna spp. And Dodonaea spp. And mixed ground layer of tussock grasses and Triodia pungens. Occurs on recent alluvial terraces of smaller streams in limestone landscapes. Riverine. (BVG1M: 16c). 1.3.6x3: [RE not in use]²: This regional ecosystem is now mapped as 1.3.10. Mixed species grassland dominated by Dichanthium spp., Iseilema spp., Eulalia aurea and/or Bothriochloa ewartiana. Occurs on shallow clayey alluvium. Not a Wetland. (BVG1M: 31a). 1.3.6x4: [RE not in use]²: This regional ecosystem is now mapped as 1.3.15. Eucalyptus pruinosa subsp. pruinosa low open woodland to woodland. Eucalyptus leucophylla, Corymbia terminalis, Corymbia aparrerinja and Lysiphyllum cunninghamii frequently appear and can be dominant in small areas. A mixed shrub layer is usually present with a ground layer of tussock grasses. Occurs on shallow drainage lines through older alluvium. Not a Wetland. (BVG1M: 19c). |
| Supplementary description | Christian et al. (1954), Mount Isa, Wonorah, Gregory; Perry et al. (1964), Quamby, Kuridala; Neldner (1991), 3 |
| Protected areas | Boodjamulla (Lawn Hill) NP |
| Special values | 1.3.6: Significant sub-regional fauna habitat due to the number and size of trees with hollows. 1.3.6b: Significant sub-regional fauna habitat due to the number and size of trees with hollows. 1.3.6e: Significant sub-regional fauna habitat due to the number and size of trees with hollows. |
| Fire management guidelines | SEASON: Storm season to early dry season. INTENSITY: Low to moderate. INTERVAL: 4 - 10 years. Ensure some areas are long (10-20 years) unburnt. Adjust intervals/frequency according to rainfall-drought cycles, fuel accumulation and previous fire history. INTERVAL_MIN: 4. INTERVAL_MAX: 20. STRATEGY: Ensure burns are undertaken across the landscape at a range of frequencies to create a mosaic of times since fire. Apply numerous small burns every year to achieve a mosaic and reduce risks of wildfire across vast areas of the landscape. Maintain burnt areas < 20%. ISSUES: Buffel grass can promote high intensity fire. Large hollow trees are important habitat for hollow-dependent fauna. Manage fire for protection of large hollow trees. |
| Comments | 1.3.6: Small areas of Corymbia polycarpa are present in Mingera Creek and Buckley River catchments. Subject to *Cenchrus pennisetiformis (Cloncurry buffel grass) invasion. 1.3.6a: Occurs in the south and centre of the bioregion. 1.3.6b: Occurs in the central part of the bioregion. 1.3.6c: This describes small ephemeral watercourses in the least fertile areas. Occurs mainly in the far south west of the bioregion. 1.3.6e: This is an outlying southern population of Corymbia polycarpa where it replaces Corymbia terminalis in a community otherwise very similar to 1.3.6a. Only known to occur along and near Mingera Creek. Subject to *Cenchrus pennisetiformis (Cloncurry buffel grass) invasion. 1.3.6x1e: Subject to high grazing pressure. 1.3.6x3: Subject to high grazing pressure. |
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.
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.
