Regional ecosystem details for 9.11.9
| Regional ecosystem | 9.11.9 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 4, 3, (2), (5) |
| Estimated extent1 | Pre-clearing 3000 ha; Remnant 2021 3000 ha |
| Short description | Semi-deciduous vine thicket on metamorphic soils (not limestone) |
| Structure code | Low Closed Forest |
| Description | Semi-evergreen vine thicket including Notelaea microcarpa (native olive), Drypetes deplanchei, Planchonella cotinifolia, Erythroxylum australe (cocaine tree), Pleiogynium timorense (Burdekin plum) +/- Brachychiton australis (broad-leaved bottle tree) +/- Lysiphyllum hookeri (white Bauhinia) +/- Ficus spp. Some canopy species +/- Gyrocarpus americanus (helicopter tree) can occur as emergents. The sub-canopy to shrub layers often include Everistia vacciniifolia, Geijera salicifolia, Acacia celsa, Alphitonia excelsa, Bridelia leichhardtii (small scrub ironbark), Psydrax odorata, Ehretia membranifolia (peach bush), Antidesma parvifolium, Denhamia oleaster, Carissa ovata (currant bush) and Alyxia ruscifolia. The ground layer often includes Ancistrachne uncinulata (hooky grass), Cyperus gracilis, Croton spp. and Abutilon sp. Vine species often found include Deeringia amaranthoides, Melodorum leichhardtii (zigzag vine) Glossocarya hemiderma and Secamone elliptica (corky milk vine). Occurs on undulating terrain, hillslopes and rocky outcrops of metamorphic geologies. Not a Wetland. (BVG1M: 7a). |
| Protected areas | Dalrymple NP |
| Special values | 9.11.9: Potential habitat for NCA listed species: Ehretia microphylla. |
| Fire management guidelines | SEASON: Do not burn deliberately. INTENSITY: Do not burn deliberately. INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Do not burn deliberately. Early dry season, low intensity burns in surrounding country to limit possibility of fire encroachment. ISSUES: Considered fire sensitive. Generally protected from fire by location in the landscape and few flammable grasses in understorey. Scorching of margins notable where there is disturbance, invasive high biomass grasses or lantana. Late dry season fires are particularly deleterious, leading to attrition of vine thicket. |
| Comments | 9.11.9: Distinguished from 9.11.8 by not being on limestone. Acacia disparrima subsp. calidestris may be a canopy species and Melaleuca bracteata may be on drainage lines in this unit in the south. Occurs in scattered patches throughout the central and northern 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.
