Regional ecosystem details for 8.12.22
| Regional ecosystem | 8.12.22 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 3, 2, (11.14), (11.12) |
| Estimated extent1 | Pre-clearing 52000 ha; Remnant 2021 44000 ha |
| Short description | Eucalyptus drepanophylla and/or Corymbia clarksoniana +/- C. erythrophloia +/- E. platyphylla +/- E. exserta +/- C. trachyphloia woodland on hills and ranges at low to moderate altitudes in drier areas |
| Structure code | Woodland |
| Description | Eucalyptus drepanophylla and/or Corymbia clarksoniana woodland to open forest. Common to occasional codominant to associated species may include C. erythrophloia, E. platyphylla, E. exserta, C. trachyphloia and C. intermedia. Other rare to occasional species in the canopy which may be present include C. dallachiana, E. portuensis, E. tereticornis and C. intermedia. Includes occasional low open stands of E. melanophloia. A secondary tree layer (or tall shrub layer) forming a very sparse to mid-dense layer (to isolated plants) may be dominated by species such as Lophostemon confertus, Acacia leptocarpa, Acacia flavescens, Alphitonia excelsa, Planchonia careya, Glochidion lobocarpum, Timonius timon var. timon, various Eucalyptus spp. and Corymbia spp., and pioneering rainforest species. There is often a very sparse shrub layer, and dominant species may include Xanthorrhoea latifolia subsp. latifolia, Dodonaea viscosa subsp. burmanniana, Dodonaea lanceolata var. subsessilifolia, Acacia leptocarpa, Glochidion lobocarpum, Breynia oblongifolia and Cycas media. The ground layer is typically dominated by species such as Themeda triandra, Xanthorrhoea latifolia subsp. latifolia, Gahnia aspera, Sorghum nitidum forma aristatum, Aristida personata, Heteropogon triticeus, Themeda triandra, Mnesithea rottboellioides, Chrysopogon fallax and Imperata cylindrica. Occurs on slopes, ridges and crests (often in drier areas) on undulating low hills, rolling mountains and steep hills of foothills and uplands, at low to moderate altitudes, in drier areas. Geology types mapped include Pc/v (Carmila beds/v), Pc/s (Carmila beds/s), Pva (Ametdale Volcanics), DCc (Campwyn Volcanics) and Cvw (Whelan Creek Volcanics). Early Permian - Late Devonian rhyolitic to dacitic volcaniclastic rocks, siltstone, mudstone and volcanilithic sandstone. Not a Wetland. (BVG1M: 13c). |
| Supplementary description | Batianoff, Dillewaard and Franks (1997), Vegetation units 26 and 27 (in part); Cumming (1997), Vegetation types 9, 11, 12, 14, 15 |
| Protected areas | Cape Palmerston NP, Newry Islands NP, Broad Sound Islands NP, Mount Hector CP |
| Special values | 8.12.22: Habitat for the endangered plant species Cycas ophiolitica. Northern limit of Cycas ophiolitica. |
| Fire management guidelines | SEASON: Winter through to storm burning. INTENSITY: Low to moderate. INTERVAL: 3 - 6 years. INTERVAL_MIN: 3. INTERVAL_MAX: 6. STRATEGY: Aim to retain 25% unburnt in any given area. ISSUES: Emphasis should be placed on the general principles of mosaic burning, and diversity of fire types. |
| Comments | 8.12.22: Closely related to vegetation community 8.12.12a but tends to occur in slightly drier (southern) areas, and often includes species such as Eucalyptus exserta, Corymbia trachyphloia and E. melanophloia which are much rarer in 8.12.12. Distinguished from the RE 8.12.20 by occurring on distinct hills as opposed to gently undulating areas close to alluvium. Occurs on the eastern side of the Connors Range in southern parts of subregion 3. Also in subregion 2 from Newry Island to an area 3km north of The Leap and from Hay Point to Hill Creek (just north of Carmila). Generally relatively good, though some areas are heavily invaded by *Lantana camara. Other problem weed species include *Passiflora suberosa, *P. pallida. |
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.
