Regional ecosystem details for 7.12.57
| Regional ecosystem | 7.12.57 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 4, 6, 5, (7), (9), (9.3), (9.6), (9.4) |
| Estimated extent1 | Pre-clearing 4000 ha; Remnant 2021 4000 ha |
| Short description | Shrubland and low woodland mosaic with Syncarpia glomulifera, Corymbia abergiana, Eucalyptus portuensis, Allocasuarina littoralis and Xanthorrhoea johnsonii on uplands and highlands on granite |
| Structure code | Shrubland |
| Description | Shrubland and low woodland mosaic with Syncarpia glomulifera (turpentine), Corymbia abergiana (range bloodwood), Eucalyptus portuensis (white mahogany), Allocasuarina littoralis (black sheoak) and Xanthorrhoea johnsonii (grasstree). Uplands and highlands on granite and rhyolite, of the moist and dry rainfall zones. Not a Wetland. (BVG1M: 9d). Vegetation communities in this regional ecosystem include: 7.12.57a: Shrubland and low woodland mosaic with Syncarpia glomulifera, Corymbia abergiana, Eucalyptus portuensis, Allocasuarina littoralis and Xanthorrhoea johnsonii. Uplands and highlands on granite and rhyolite, of the moist and dry rainfall zones. Not a Wetland. (BVG1M: 9d). 7.12.57c: Shrubland/low woodland (1.5-9m tall) mosaic with variable dominance, often including Eucalyptus cloeziana, Corymbia abergiana, E. portuensis, E. reducta, E. lockyeri, C. leichhardtii, Callitris intratropica, E. atrata, E. pachycalyx, E. shirleyi, E. drepanophylla and Homoranthus porteri, on rhyolite and granite. There is occasionally a very sparse to sparse secondary tree layer of Corymbia abergiana and/or C. stockeri. A very sparse to sparse tall shrub layer may be present and can include Persoonia falcata, Exocarpos cupressiformis and Melaleuca viridiflora var. viridiflora. A sparse to dense lower shrub layer may include Jacksonia thesioides, Acacia calyculata, Coelospermum reticulatum, Xanthorrhoea johnsonii, Acacia humifusa, Dodonaea lanceolata var. subsessilifolia, Grevillea dryandri subsp. dryandri, Grevillea glossadenia, Acacia umbellata and Ericaceae spp. The ground layer may be dominated by species such as Themeda triandra, Xanthorrhoea johnsonii, Eriachne pallescens var. pallescens, Cleistochloa subjuncea, Borya septentrionalis, and Eriachne spp. Includes open rocky dominated by herbs and grasses. This RE includes areas of 7.12.65k (rocky areas with shrubby/herbaceous cover) which are too small to map. Rocky slopes on granite and rhyolite. Not a Wetland. (BVG1M: 9d). |
| Supplementary description | Stanton and Stanton (2005), G55, R55 |
| Protected areas | Baldy Mountain FR, Danbulla NP, Mount Lewis NP, Millstream Falls NP, Koombooloomba South FR, Herberton Range NP, Ravenshoe FR 1 |
| Special values | 7.12.57: Threatened species include Diuris oporina (NT), Homoranthus porteri (V), Melaleuca uxorum (E) and Prostanthera clotteniana (E). Other species of local significance are Eucalyptus lockyeri. 7.12.57a: Threatened species include Corymbia leptoloma (V), Homoranthus porteri (V), Marsdenia brevifolia (V), Acacia longipedunculata (NT), Dodonaea uncinata and Diuris oporina (NT). Other species of local significance are Eucalyptus lockyeri. 7.12.57c: Habitat for several locally restricted and disjunct species. Threatened species include Micromyrtus delicata (E), Melaleuca sylvana (E), Melaleuca uxorum (E), Diuris oporina (NT), Homoranthus porteri (V), Grevillea glossadenia (V), Acacia purpureopetala (V), Corymbia rhodops (V) and Prostanthera clotteniana (E). Other species of local significance are Eucalyptus lockyeri. |
| Fire management guidelines | SEASON: Avoid dry conditions or fires will spread too much. April to July or as early as March, conditions permitting. INTENSITY: Moisture and topography affect severity. Low to high. INTERVAL: 6-10 years with some areas burnt at longer intervals. Fire intervals less than 6 years are too short to allow replenishment of obligate seeders. INTERVAL_MIN: 6. INTERVAL_MAX: 10. STRATEGY: Mosaic burns will be achieved through use of natural features such as topography and creek-lines. Burn in association with surrounding vegetation. Protection relies on the broad-scale management of surrounding country with numerous small fires throughout the year so that wildfires will be very limited in extent. Fire exclusion and buffering from fire are not necessary. ISSUES: Any planned burning should be conducted in association with plans for surrounding vegetation. Often contains obligate seed regenerating species and as such, the application of frequent fire may reduce species richness if the intervals between fire are not sufficient for plants to produce seed. Too frequent a fire frequency may result in a net loss of nutrients over time from an already nutrient poor system. Burn when water and moisture are present on the ground. |
| Comments | 7.12.57: Occurs on shallow soils as opposed to the fairly deep soils of 7.12.4, and also distinguished from 7.12.4 by its shrubland to low woodland structure. Distinguished from 7.12.51 and 7.12.52 by its shrubland to low woodland structure, and the dominance of Syncarpia glomulifera and Corymbia abergiana rather than Eucalyptus resinifera. Distinguished from 7.12.26 by its shrubland to low woodland structure and presence of C. abergiana. Floristically contains many Einasleigh Uplands species. Many of these species are poorly represented in the Wet Tropics bioregion. Several species occur in southern Queensland and NSW and others have affinities with related taxa from those areas e.g. Chorizema parviflorum, Pultenaea spp., Pseudanthus, Leucopogon and Melaleuca spp. The northern areas of the Mount Molloy-Mt Carbine area on granite appear to be different to the rhyolitic areas south of Mareeba. Callitris intratropica is conspicuous to the north and lacks a well-developed southern aligned shrub component. Rather, it has a dry savannah tropical composition that includes Brachychiton and vine thicket elements. Western edge of the bioregion from Mt Carbine south to the Hidden Valley area west of Paluma. The weed Praxelis clematidea is a problem from the Herberton Range south. 7.12.57a: Distinguished from 7.12.57c by the presence of Syncarpia glomulifera (slightly wetter and/or higher landscape). Distinguished from 17.12.30d by the shrubland or low woodland (as opposed to woodland) structure. Western edge of the bioregion from Mt Carbine south to the Hidden Valley area west of Paluma. The weed Praxelis clematidea is a problem from the Herberton Range south. 7.12.57c: Distinguished from 7.12.57a by the absence(or very rare presence) of Syncarpia glomulifera (slightly drier and/or more western landscape). Distinguished from 7.12.30d by the shrubland or low woodland (as opposed to woodland) structure. Occurs to the west of Herberton and on the Herberton Range to the NW of Mt. Emerald. The weed Praxelis clematidea is a problem from the Herberton Range south. |
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.
