Regional ecosystem details for 7.11.51
| Regional ecosystem | 7.11.51 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 8, 7, 9, (3.2), (3), (1), (9.3), (4) |
| Estimated extent1 | Pre-clearing 19000 ha; Remnant 2021 16000 ha |
| Short description | Corymbia clarksoniana and/or Eucalyptus drepanophylla open forest to woodland on metamorphics |
| Structure code | Open Forest |
| Description | Corymbia clarksoniana (Clarkson's bloodwood) and/or Eucalyptus drepanophylla (ironbark) open forest to woodland. Metamorphics. Not a Wetland. (BVG1M: 9c). Vegetation communities in this regional ecosystem include: 7.11.51a: Corymbia clarksoniana, Eucalyptus tereticornis, E. drepanophylla woodland, low woodland to open forest with Allocasuarina torulosa, Allocasuarina littoralis, Lophostemon suaveolens, Acacia cincinnata, A. flavescens, Banksia aquilonia, Xanthorrhoea johnsonii. Metamorphics. Not a Wetland. (BVG1M: 9c). 7.11.51b: Eucalyptus drepanophylla woodland. Foothills and uplands on metamorphics, of the moist to dry rainfall zones. Not a Wetland. (BVG1M: 13c). 7.11.51c: Corymbia clarksoniana woodland. Metamorphics. Not a Wetland. (BVG1M: 9c). |
| Supplementary description | Stanton and Stanton (2005), M250b, CM250b, Q250b, M150, M226 |
| Protected areas | Kuranda NP, Little Mulgrave NP, Kuranda West FR, Mowbray NP, Ngalba-bulal NP (CYPAL), Wooroonooran NP, Mount Windsor NP, Macalister Range NP, Dinden NP, Dinden West FR, Annan River (Yuku Baja-Muliku) RR, Gadgarra NP, Annan River (Yuku Baja-Muliku) NP, Mou |
| Special values | 7.11.51: Potential habitat for NCA listed species: Grevillea glossadenia, Coleus gratus. |
| Fire management guidelines | SEASON: Cool, dry season (June-Sep). b: April-Sep. c: Begin burning after the wet season (April-May), but avoid hot, dry season unless a high intensity fire is required to manage thickening, then undertake storm burn. INTENSITY: Low to moderate. c: Low, with occasional moderate or high intensity to manage thickening and/or stimulate germination. INTERVAL: 2-5 years. INTERVAL_MIN: 2. INTERVAL_MAX: 5. STRATEGY: Mosaic burn < 30%. Begin burning early in the fire season, with progressive patch fires burnt through the year. Stop burning when the network of fires and other breaks is sufficient to impede fire spread later in the year. Storm-burning may be used to add further diversity to the fire mosaic. c: Mosaic burn 25-60%. Storm-burning may be used to add further diversity to fire mosaic, promote perennial grasses and arrest woody thickening. ISSUES: Ignition is most likely during hot, dry season (Oct - Jan). These fires are typically high intensity fires that can be difficult to control. Maintaining a fire mosaic will ensure protection of animal habitats and mitigate against wildfires. b: An occasional moderate severity fire may be used to manage overabundant recruitment of trees. Maintaining a fire mosaic will ensure protection of animal habitats and mitigate against wildfires. c: In the absence of fire an abundance of rainforest pioneers (e.g., Melastoma spp., Chionanthus ramiflora, Mallotus philippensis, Alyxia spicata and Glochidion spp.) and bracken fern can establish. This development can be rapid (within about 15 years) after which system change is difficult to reverse. Thickening with rainforest species can be detrimental to habitat trees and endangered species (e.g., mahogany glider). Where fire is more common the understorey is usually dominated by tall grasses (e.g., Themeda triandra and Eriachne pallescens), herbaceous plants, lilies and sedges (e.g., Tricoryne anceps, Gonocarpus acanthocarpus, Lomandra longifolia, Dianella caerulea). |
| Comments | 7.11.51: Distinguished from 7.11.19 by the dominance of Corymbia clarksoniana instead of C. intermedia (usually lower altitude and/or drier zones than 7.11.19). Distinguished from 7.11.43 by the common co-dominance of ironbarks rather than C. tessellaris. Widespread in drier parts of the bioregion. |
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.
