Regional ecosystem details for 3.12.4
| Regional ecosystem | 3.12.4 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 3, (4), (7) |
| Estimated extent1 | Pre-clearing 7000 ha; Remnant 2021 7000 ha |
| Short description | Notophyll vine forest of Welchiodendron longivalve and Acacia polystachya on low hills and rises on igneous hills |
| Structure code | Closed Forest |
| Description | Notophyll vine forest of Welchiodendron longivalve (yellow box-penda) and Acacia polystachya. In gullies within this community a variant, where these species are not dominant, often occurs. Occurs on low hills and rises on igneous hills. Not a Wetland. (BVG1M: 2c). Vegetation communities in this regional ecosystem include: 3.12.4a: Welchiodendron longivalve (yellow box-penda) and Acacia polystachya dominate the dense uneven canopy (16-22m tall). Buchanania arborescens (native mango) (dominant at site 931), Canarium australianum (scrub turpentine), Cryptocarya triplinervis var. riparia and Ganophyllum falcatum are frequent canopy trees. Occasional Bombax ceiba and Canarium australianum may be present as deciduous emergents. A mixed, dense sub-canopy layer (8-15m tall) is usually present. Dracaena angustifolia may occur at high densities in this layer. A sparse variable shrub layer (0.5-2.5m tall) is usually present with Breynia cernua, Claoxylon tenerifolium, Clerodendrum floribundum, Tritaxis australiensis, Diospyros compacta, Drypetes deplanchei and Halfordia kendack and Abrus precatorius frequently occurring. The ground layer is very sparse and variable in composition. Scleria spp., Curcuma australasica and Oplismenus mollis are characteristically found in this layer. Occurs on low igneous hills and rises. Not a Wetland. (BVG1M: 2c). 3.12.4b: Evergreen mesophyll/notophyll vine forest (18-25m) with Endiandra glauca, Acacia polystachya, Syzygium bungadinnia, Canarium australianum (scrub turpentine) and Dysoxylum oppositifolium. A sub-canopy (10-15m) contains canopy species as well as Chionanthus ramiflorus, Arytera bifoliolata and Cryptocarya exfoliata. The rock talus is sparsely covered with scattered epiphytes including Drynaria quercifolia. Occurs in sheltered gullies on igneous slopes. Not a Wetland. (BVG1M: 2c). 3.12.4c: Semi evergreen mesophyll vine thicket associated with springs in granite ranges. The canopy may only be one crown width and dominated by Ficus spp. The ground layer may be dominated by ferns. Occurs around small springs in granite ranges. Palustrine. (BVG1M: 2c). |
| Protected areas | Round Island CP, Possession Island NP |
| Special values | 3.12.4: High diversity of vascular plants, many with restricted distributions. Structure varies with exposure. 3.12.4a: High diversity of vascular plants, many with restricted distributions. Structure varies with exposure. |
| Fire management guidelines | INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: No deliberate fire management required within this unit. Undertake fuel reduction burns in surrounding vegetation utilising multiple small fires throughout the appropriate season to manage biodiversity values and to limit the extent and reduce risks of wildfire. ISSUES: Fire sensitive vegetation type. |
| Comments | 3.12.4: RE 3.12.20 (part) was amalgamated in to this RE. Torres Strait islands. 3.12.4a: May also occur on metamorphic slopes around Mt. Tozer. Torres Strait islands, including Badu and Moa. 3.12.4b: Most abundant on Mabuiag Island, with scattered occurrences on Gebar and Warral Islands, Torres Strait. 3.12.4c: Granite ranges in the central bioregion. |
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.
