Regional ecosystem details for 8.11.8
| Regional ecosystem | 8.11.8 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 4, (11.14), (5) |
| Estimated extent1 | Pre-clearing 13000 ha; Remnant 2021 13000 ha |
| Short description | Corymbia citriodora or Eucalyptus moluccana woodland on metamorphosed sediments (subregion 4) |
| Structure code | Woodland |
| Description | Corymbia citriodora or Eucalyptus moluccana woodland to open forest (14-28m tall). Associated canopy species may include E. crebra, E. portuensis, C. trachyphloia, E. exserta, C. clarksoniana and C. intermedia. There is sometimes a very sparse to sparse secondary tree layer dominated by species such as Lophostemon confertus, L. suaveolens, Acacia flavescens, Allocasuarina torulosa, Melaleuca viridiflora var. viridiflora, Corymbia spp. and Eucalyptus spp. There may be a very sparse to sparse shrub layer, with typical species including Lophostemon confertus, Jacksonia scoparia, Coelospermum reticulatum, Acacia crassa subsp. longicoma, A. aulacocarpa, A. flavescens and Alphitonia excelsa. The ground layer may be dominated by species such as Themeda triandra, Xanthorrhoea latifolia subsp. latifolia, Lomandra spp., Aristida spp., Heteropogon triticeus, Eremochloa bimaculata, Paspalidium spp., Macrozamia miquelii and Heteropogon contortus. Occurs on slopes, ridges and crests on undulating rises to steep hills of foothills, on metamorphosed sediments. Geology mapped as Ccs (Shoalwater Formation). Carboniferous quartzose sandstone, mudstone; local schist. DCcw (Wandilla Formation). Late Devonian - Carboniferous mudstone, lithic sandstone (locally containing silicified oolites), siltstone, jasper and chert; local schist. Not a Wetland. (BVG1M: 10b). Vegetation communities in this regional ecosystem include: 8.11.8a: Corymbia citriodora woodland to open forest (14-28m tall). Eucalyptus crebra is a common codominant or associated canopy tree, and other species may include E. portuensis, C. trachyphloia, C. clarksoniana, E. exserta, C. intermedia and E. moluccana. There is sometimes a very sparse to sparse secondary tree layer dominated by species such as Lophostemon confertus, Acacia flavescens, Allocasuarina torulosa, Melaleuca viridiflora var. viridiflora and Corymbia spp. and Eucalyptus spp. There may be a very sparse to sparse shrub layer, with typical species including Lophostemon confertus, Jacksonia scoparia, Acacia crassa subsp. longicoma, A. aulacocarpa, A. flavescens and Coelospermum reticulatum. The ground layer may be dominated by species such as Themeda triandra, Xanthorrhoea latifolia subsp. latifolia, Aristida spp., Heteropogon triticeus, Eremochloa bimaculata, Macrozamia miquelii, Heteropogon contortus and Lomandra spp. Occurs on slopes, ridges and crests on undulating rises to steep hills of foothills, on metamorphosed sediments. Geology is mapped as Ccs (Shoalwater Formation). Carboniferous quartzose sandstone, mudstone; local schist. DCcw (Wandilla Formation). Late Devonian - Carboniferous mudstone, lithic sandstone (locally containing silicified oolites), siltstone, jasper and chert; local schist. Not a Wetland. (BVG1M: 10b). 8.11.8b: Eucalyptus moluccana woodland to open forest (15-28m tall). Occasional associated species may include E. portuensis, Corymbia citriodora and E. exserta. There is sometimes a very sparse to sparse secondary tree layer, and species may include E. moluccana, Lophostemon suaveolens, C. trachyphloia, E. crebra and L. confertus. A very sparse to sparse shrub layer includes species such as Coelospermum reticulatum, Alphitonia excelsa, Lophostemon confertus, Acacia crassa subsp. longicoma and Breynia oblongifolia. The ground layer may include Themeda triandra, Lomandra longifolia, Paspalidium spp., Aristida utilis var. utilis, Dianella caerulea, Eremochloa bimaculata, Aristida queenslandica var. queenslandica, Eustrephus latifolius and Lomandra multiflora. Occurs on lower slopes of gently undulating rises to undulating hills of foothills, on metamorphosed sediments. Geology mapped as DCcw (Wandilla Formation). Late Devonian - Carboniferous mudstone, lithic sandstone (locally containing silicified oolites), siltstone, jasper and chert; local schist. Ccs (Shoalwater Formation). Carboniferous quartzose sandstone, mudstone; local schist. Not a Wetland. (BVG1M: 13d). |
| Supplementary description | Bailey et al. (2000), CCCb-11; Brushe et al. (in prep.), map units c36-11, 70-11a, c55-11a, c66-11, c70-11a |
| Protected areas | Keppel Bay Islands NP |
| Special values | 8.11.8a: Habitat for some species poorly known from the Central Queensland Coast Bioregion including Brachychiton populneus and Indigofera australis. Northern range limit for some species including Acacia leiocalyx subsp. leiocalyx and Macrozamia miquelii. Habitat for the Glossy Black Cockatoo which is listed as "Vulnerable" in the Queensland Nature Conservation Act 1992. 8.11.8b: Habitat for poorly known taxa such as Hypoxis pratensis var. pratensis and Polygala sp., and species at the northern edge of their range such as Goodenia rotundifolia. |
| 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. a: 7-12 years. INTERVAL_MIN: 3. INTERVAL_MAX: 12. 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 | 8.11.8: A high burning frequency, and impacts from artillery action are threats to this ecosystem. 8.11.8a: Distinguished from all other land zone 11 regional ecosystems and vegetation communities by the dominance (or codominance) of Corymbia citriodora. Occurs in subregion 4, widely distributed within the Shoalwater Bay Military Training Area from Conical Mountain in Coast Range towards Mount Hummock to an area west of Port Clinton. Also mapped on North Keppel Island. Weeds are a problem in some areas. Common species include *Lantana camara, *Passiflora suberosa, *P. pallida and *Triumfetta rhomboidea. 8.11.8b: Distinguished from all other land zone 11 regional ecosystems and vegetation communities by the dominance (or codominance) of Eucalyptus moluccana. Occurs within the Shoalwater Bay Military Training Area, subregion 4. from near Mount Hummock in the north to Conical Mountain in the Coast Range. Also occurs on Great Keppel Island. Vulnerable to weed invasion. Common species include *Lantana camara, *Passiflora foetida, *P. suberosa, *Sida cordifolia, *Sporobolus jacquemontii 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.
