Regional ecosystem details for 12.11.5
| Regional ecosystem | 12.11.5 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 3, 10, 7, (1), (8), (9), (2), (4), (5), (11.18) |
| Estimated extent1 | Pre-clearing 86000 ha; Remnant 2021 53000 ha |
| Short description | Corymbia citriodora subsp. variegata woodland to open forest +/- Eucalyptus siderophloia/E. crebra, E. carnea, E. acmenoides, E. propinqua on metamorphics +/- interbedded volcanics |
| Structure code | Open Forest |
| Description | Corymbia citriodora subsp. variegata open forest to woodland, usually including Eucalyptus siderophloia/E. crebra (sub coastal ranges), E. propinqua and E. acmenoides or E. carnea. Other species that may be present and abundant locally include Corymbia intermedia, C. trachyphloia subsp. trachyphloia, Eucalyptus tereticornis, E. microcorys, E. portuensis, E. helidonica, E. major, E. longirostrata, E. biturbinata, E. moluccana and Angophora leiocarpa. Lophostemon confertus often present in gullies and as a sub-canopy or understorey tree. Mixed understorey of grasses, shrubs and ferns. Occurs on hills and ranges of Palaeozoic and older moderately to strongly deformed and metamorphosed sediments and interbedded volcanics. Not a Wetland. (BVG1M: 10b). Vegetation communities in this regional ecosystem include: 12.11.5a: [RE not in use]²: This vegetation community is now mapped as 12.11.24. Eucalyptus carnea, E. tindaliae, Corymbia intermedia woodland +/- E. crebra or E. siderophloia, Eucalyptus resinifera, Eucalyptus major, E. helidonica, Angophora woodsiana, C. trachyphloia, E. microcorys, Corymbia citriodora subsp. variegata, C. henryi. Occurs on Palaeozoic and older moderately to strongly deformed and metamorphosed sediments and interbedded volcanics. Not a Wetland. (BVG1M: 9g). 12.11.5e: [RE not in use]²: This vegetation community is now mapped as 12.11.5. Corymbia citriodora subsp. variegata woodland to open forest, usually including Eucalyptus siderophloia or E. crebra (sub coastal ranges), E. propinqua and E. acmenoides or E. carnea. Other species that may be present and abundant locally include Corymbia intermedia, C. trachyphloia subsp. trachyphloia, Eucalyptus tereticornis, E. microcorys, E. portuensis, E. helidonica, E. major, E. longirostrata, E. biturbinata, E. moluccana and Angophora leiocarpa. Lophostemon confertus often present in gullies and as a sub-canopy or understorey tree. Mixed understorey of grasses, shrubs and ferns. Occurs on hills and ranges of Palaeozoic and older moderately to strongly deformed and metamorphosed sediments and interbedded volcanics. Not a Wetland. (BVG1M: 10b). 12.11.5h: [RE not in use]²: This vegetation community is now mapped as 12.11.26. Woodland to open forest of Eucalyptus planchoniana and/or E. baileyana, E. carnea and Angophora woodsiana +/- E. fibrosa subsp. fibrosa, E. racemosa subsp. racemosa, Corymbia intermedia, C. trachyphloia, E. tindaliae, E. helidonica and E. resinifera. Occurs on Palaeozoic and older moderately to strongly deformed and metamorphosed sediments and interbedded volcanics typically on ridges and crests. Not a Wetland. (BVG1M: 9h). 12.11.5j: [RE not in use]²: This vegetation community is now mapped as 12.11.27. Eucalyptus racemosa subsp. racemosa and/or E. seeana and Corymbia intermedia woodland. Other characteristic species include E. siderophloia, Angophora leiocarpa, C. trachyphloia subsp. trachyphloia and rarely E. pilularis. Melaleuca quinquenervia may be present and at times becomes locally co-dominant. Occurs on Palaeozoic and older moderately to strongly deformed and metamorphosed sediments and interbedded volcanics, typically at low altitude, near coastal situations. Not a Wetland. (BVG1M: 9g). 12.11.5k: [RE not in use]²: This vegetation community is now mapped as 12.11.25. Corymbia henryi and Eucalyptus fibrosa subsp. fibrosa woodland +/- Eucalyptus crebra, E. carnea, E. tindaliae, E. siderophloia, C. citriodora subsp. variegata, Angophora leiocarpa, E. acmenoides, E. helidonica, E. propinqua, C. intermedia. Includes patches of E. dura. Usually occurs on low hills, hills and footslopes of mountains in near coastal areas on Palaeozoic and older moderately to strongly deformed and metamorphosed sediments and interbedded volcanics. Not a Wetland. (BVG1M: 10b). 12.11.5l: [RE not in use]²: This vegetation community is now mapped as 12.11.28. Eucalyptus helidonica, Angophora woodsiana, Corymbia gummifera woodland with a heathy shrub layer dominated by Leptospermum polygalifolium, Xanthorrhoea johnsonii and Banksia spinulosa var. collina. Other canopy trees include Eucalyptus tindaliae, E. carnea, E. resinifera, Corymbia intermedia, C. trachyphloia subsp. trachyphloia and Lophostemon confertus. Occurs on crests and upper slopes of hills comprised of Palaeozoic and older moderately to strongly deformed and metamorphosed sediments and interbedded volcanics. Not a Wetland. (BVG1M: 9h). 12.11.5m: Rock pavement to open woodland of Eucalyptus carnea and Corymbia citriodora subsp. variegata, Corymbia intermedia and Lophostemon confertus. Occurs on ridges and crests comprised of chert or other highly resistant Palaeozoic and older moderately to strongly deformed and metamorphosed sediments. Not a Wetland. (BVG1M: 29b). |
| Supplementary description | Bean et al. (1998), H21, H39 |
| Protected areas | D'Aguilar NP, Bania NP, Tamborine NP, Clear Mountain CP, Gympie NP, Goomboorian NP, Moggill CP, Plunkett CP, King CP, Samford CP, Mount Walsh NP, Tuchekoi NP, Woondum NP, Wickham NP, Nerang CP, Mount Perry RR, Toohey Forest CP, Bunyaville CP |
| Special values | 12.11.5: Habitat for listed plant species including Cycas megacarpa and Sophora fraseri. This ecosystem is known to provide suitable habitat for koalas (Phascolarctos cinereus). 12.11.5a: Habitat for listed flora species including Sophora fraseri. 12.11.5e: Habitat for listed flora species including Cycas megacarpa and Sophora fraseri. 12.11.5h: Habitat for listed flora species including Sophora fraseri. 12.11.5j: Habitat for listed flora species including Sophora fraseri. 12.11.5k: Habitat for listed flora species including Sophora fraseri. |
| Fire management guidelines | SEASON: Summer to winter. INTENSITY: Low to moderate. INTERVAL: 2-7 years. INTERVAL_MIN: 2. INTERVAL_MAX: 7. STRATEGY: Aim for 40-60% mosaic burn. Burn with soil moisture and with a spot ignition strategy so that a patchwork of burnt/unburnt country is achieved. Variability in season and fire intensity is important. ISSUES: Monitoring (Williams and Nash 2022 in litt.) indicates that the primarily Themeda triandra and Entolasia stricta grassy ground layer in this RE is refreshed and maintained by regular fire with good soil moisture. Without regular burning, the native grasses, especially kangaroo grass, are replaced by less flammable, shade-tolerant herbs and leaf litter, which do not carry fires until conditions are drier. Therefore planned burning becomes more difficult because leaf litter, herbs and saplings are less combustible under moist conditions but they burn intensely once dry. Fires during dry conditions increase fire severity, damaging trees and recruiting excessive shrubs and saplings (especially wattles), which increases fuel hazard and severity of future fires. Fires in dry conditions, especially wildfires, promote excessive wattle recruitment. A follow up fire in 2 to 3 years is needed to thin wattle seedlings before they produce too many seeds and before they grow above the scorch height to create an excessively dense mid strata that shades out the diverse grass and herb layer. |
| Comments | 12.11.5: The vegetation community 12.11.5e was amalgamated into this RE. Species composition of canopy can be very mixed, for example in the D'Aguilar Range north-west of Brisbane 10-12 tree species have been recorded in 0.1 ha plots. Occurs in moister habitats than the related RE 12.11.6. D'Aguilar Range north-west of Brisbane. Lower altitude occurrences in south of bioregion are being extensively cleared and fragmented. 12.11.5a: Erected as new RE 12.11.24 in August 2016. Lower altitude occurrences in south of bioregion are being extensively cleared and fragmented. 12.11.5e: Incorporated into 12.11.5 in August 2016. Species composition of canopy can be very mixed, for example in the D'Aguilar Range north-west of Brisbane 10-12 tree species have been recorded in 0.1 ha plots. Occurs in moister habitats than the related RE 12.11.6. D'Aguilar Range north-west of Brisbane. Lower altitude occurrences in south of bioregion are being extensively cleared and fragmented. 12.11.5h: Erected as new RE 12.11.26 in August 2016. Patches often too small to map at 1:100 000. Restricted to the south and east of Brisbane. Cleared and fragmented. 12.11.5j: Erected as new RE 12.11.27 in August 2016. Low-altitude near coastal metamorphosed sediments generally from Brisbane to the Gold Coast. Often occurs adjacent to 12.11.23. Extensively cleared and fragmented due to urban development. 12.11.5k: Erected as new RE 12.11.25 in August 2016. Commonly found on low hills, hills and footslopes of mountains between Morayfield and the New South Wales border. 12.11.5l: Erected as a new RE 12.11.28 in August 2016. Restricted to the Chermside Hills area on the north side of Brisbane City. Subject to over burning (frequent fire favours fire-tolerant species at the expense of fire-sensitive species). 12.11.5m: Typically on chert bands within the D'Aguilar Range north-west of Brisbane. |
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.
2 Superseded: Revision of the regional ecosystem classification removed this regional ecosystem code from use. It is included in the regional ecosystem description database because the RE code may appear in older versions of RE mapping and the Vegetation Management regulation.
