Regional ecosystem details for 8.12.32
| Regional ecosystem | 8.12.32 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 3, 4, (11.2), (11.14) |
| Estimated extent1 | Pre-clearing 29000 ha; Remnant 2021 28000 ha |
| Short description | Corymbia intermedia +/- E. portuensis +/- E. exserta open forest to woodland with areas of Allocasuarina spp. +/- Banksia integrifolia open forest on high ranges on Mesozoic to Proterozoic igneous rocks |
| Structure code | Open Forest |
| Description | Corymbia intermedia woodland to open forest (15-34m tall). Includes small areas dominated by Allocasuarina littoralis and/or Eucalyptus exserta and/or Lophostemon confertus woodland to closed forest (3-15m tall). Associated canopy species may include E. portuensis, Lophostemon suaveolens, E. tereticornis, Banksia integrifolia subsp. compar, Allocasuarina littoralis, A. torulosa, E. drepanophylla and E. crebra. A secondary tree layer is often present, with species usually including Allocasuarina torulosa, A. littoralis, Banksia integrifolia subsp. compar and Lophostemon suaveolens. A very sparse to mid-dense shrub layer is often present, with typical species including Banksia integrifolia subsp. compar, Allocasuarina spp. and Xanthorrhoea latifolia subsp. latifolia. The ground layer may be dominated by species such as Xanthorrhoea latifolia subsp. latifolia, Themeda triandra, Imperata cylindrica, Heteropogon triticeus, Pteridium esculentum, Sorghum nitidum forma aristatum and Mnesithea rottboellioides. Occurs on slopes, ridges, crests and tablelands on undulating hills to steep mountains of foothills and uplands, on Mesozoic to Proterozoic igneous rocks. Geologies mapped as CKr (Urannah Igneous Complex), CPgte (Teemburra Igneous Complex), CPgga (Gargett Granite), CPg and CPgjo (Johnstone Creek Igneous Complex). Early Cretaceous - Late Carboniferous undivided acid, intermediate and minor basic plutonic rocks. Not a Wetland. (BVG1M: 9c). |
| Supplementary description | Bailey et al. (2003), AL-12; Bean (1992b), Og (in part); Brushe et al. (in prep), Map units c88, c89 |
| Protected areas | Homevale NP, Eungella NP, Crediton FR |
| Special values | 8.12.32: Habitat for the threatened species Glossy Black Cockatoo, which is listed in the Queensland Nature conservation Act 1992. Northern limit for Glossodia major, Olearia nernstii, Parsonsia leichhardtii, Macrozamia miquelii, Acianthus amplexicaulis, Hovea clavata, Mirbelia rubiifolia, Persoonia virgata, Phebalium woombye, Pomaderris ferruginea and Pseudanthus orientalis. Habitat for species which are poorly known in the Central Queensland Coast, including Cyathea australis, Banksia spinulosa var. spinulosa, Cassinia subtropica, Hibbertia velutina, Monotoca scoparia, Gompholobium pinnatum, Cassinia subtropica, Comesperma esulifolium, Homalanthus stillingiifolius, Leucopogon flexifolius, Patersonia glabrata, Pultenaea retusa and Ranunculus lappaceus. |
| Fire management guidelines | SEASON: Late wet to early dry season, with occasional storm burns (Nov-Dec). Winter burns may be acceptable if conditions have not been appropriate for burning until winter. INTENSITY: Mainly low, but with some moderate and high. INTERVAL: 3-7 years. INTERVAL_MIN: 3. INTERVAL_MAX: 7. STRATEGY: Apply mosaic burns across the landscape at a range of intervals. At a fine scale attempt to create a spatial mosaic with multiple burn patches 20 ha or less; aim for a 30-50% burnt area. At the bioregion scale do not burn more than 20% within the same year. ISSUES: Lack of fire promotes overabundant pioneer rainforest species. Too frequent fire or inappropriately timed fire promotes weeds, including high-biomass grasses that lead to inappropriate fires. At least 7 years between burns is required to permit obligate seeding shrubs to reproduce. |
| Comments | 8.12.32: Most closely related to the 8.12.5 series from which it can be distinguished by being dominated by Corymbia intermedia. Also related to the 8.12.31 series but tends to occur at slightly lower altitudes and excludes. E. resinifera. Occurs from near Mt Flat Top on the Clarke Range (40km west of Lethebrook) to Pisgah Range 20km north of Nebo in subregion 3. In subregion 4 it is mapped on the Polygon Range, Coast Range and Peninsula Range. Ranges from good to very poor. Many areas have been grazed heavily and some areas have been harvested for timber. This ecosystem is vulnerable to weed invasion. Common weed species include *Lantana camara, *Triumfetta rhomboidea, *Passiflora suberosa, *P. pallida, *Ageratum conyzoides subsp. conyzoides, *Melinis minutiflora, *Melinis repens, *Axonopus fissifolius, *Crassocephalum crepidioides, *Dichanthium annulatum, *Themeda quadrivalvis and *Stachytarpheta jamaicensis. |
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.
