Regional ecosystem details for 12.9-10.18
| Regional ecosystem | 12.9-10.18 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 6, 7, 5, 8, (2), (10) |
| Estimated extent1 | Pre-clearing 15000 ha; Remnant 2021 6000 ha |
| Short description | Angophora leiocarpa, Eucalyptus crebra woodland on sedimentary rocks |
| Structure code | Woodland |
| Description | Angophora leiocarpa, Eucalyptus crebra woodland +/- E. longirostrata, Corymbia citriodora subsp. variegata. Other species such as Eucalyptus tereticornis, Corymbia trachyphloia subsp. trachyphloia and C. intermedia may be present in scattered patches or in low densities. Understorey can be grassy or shrubby. Occurs on Cainozoic and Mesozoic sediments. Not a Wetland. (BVG1M: 9h). Vegetation communities in this regional ecosystem include: 12.9-10.18a: Open forest of Angophora leiocarpa, Eucalyptus crebra, E. tereticornis with a sub-canopy of Lophostemon suaveolens. Occurs in gullies on Cainozoic and Mesozoic sediments. Not a Wetland. (BVG1M: 9h). 12.9-10.18b: Callitris endlicheri, Angophora leiocarpa +/- Eucalyptus exserta, E. acmenoides, Corymbia intermedia open-woodland with shrubby understorey of Leptospermum spp. And Acacia spp. Occurs on rocky ridges, crests and upper slopes on Cainozoic and Mesozoic sediments. Not a Wetland. (BVG1M: 9h). |
| Supplementary description | Ryan, T.S. (ed.) (2012); Bean et al. (1998), H16, H27 |
| Protected areas | Cordalba NP, Tarong NP, Cherbourg CP, The Palms NP, Pidna NP |
| Special values | 12.9-10.18: This ecosystem is known to provide suitable habitat for koalas (Phascolarctos cinereus). |
| Fire management guidelines | SEASON: Summer to late-autumn. a: Summer to winter. INTENSITY: Low. a: Plan for low to moderate. Unplanned occasional high intensity wildfire will occur. INTERVAL: 3-6 years. a: 4-8 years maintains a healthy grassy system. 8-20 years for shrubby elements of understorey. INTERVAL_MIN: 3. INTERVAL_MAX: 20. STRATEGY: Aim to burn 40-60% of any given area. Spot ignition in cooler or moister periods encourages mosaics. a: Aim for 40-60% mosaic burn. Needs disturbance to maintain RE structure (eucalypt overstorey with open understorey of predominantly non-rainforest species). ISSUES: Frequent fire is needed to maintain understorey integrity, keeping more mesic species low in the profile of the understorey so that other species can compete. It is essential that wildfires are not the sole source of fire in this ecosystem. A follow-up burn soon after a high intensity wildfire can be considered to reduce germinating/resprouting mesic species. Control of weeds (e.g., Lantana camara) might be required. |
| Comments | 12.9-10.18: This type has a very scattered distribution and often occurs as small patches. 12.9-10.18a: This type has a very scattered distribution and often occurs as small linear patches. 12.9-10.18b: Restricted to St Mary State Forest. |
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.
