Regional ecosystem details for 12.9-10.11
| Regional ecosystem | 12.9-10.11 |
|---|---|
| Vegetation Management Act class | Endangered |
| Wetlands | Palustrine |
| Biodiversity status | Endangered |
| Subregion | 2 |
| Estimated extent1 | Pre-clearing 2000 ha; Remnant 2021 200 ha |
| Short description | Melaleuca irbyana low open forest on sedimentary rocks |
| Structure code | Low Open Forest |
| Description | Melaleuca irbyana low open forest or thicket. Emergent Eucalyptus moluccana, E. crebra, E. tereticornis or Corymbia citriodora subsp. variegata may be present. Occurs on Mesozoic sediments where drainage of soils is impeded. Palustrine. (BVG1M: 21b). Vegetation communities in this regional ecosystem include: 12.9-10.11a: [RE not in use]²: This vegetation community is now mapped as 12.9-10.27. Corymbia citriodora subsp. variegata, Eucalyptus crebra and/or E. moluccana, E. tereticornis open forest with a sparse to mid-dense understorey of Melaleuca irbyana. Occurs on lower slopes and elevated flats with impeded drainage on Mesozoic sediments. Not a Wetland. (BVG1M: 21b). |
| Supplementary description | Bean et al. (1998), C5 |
| Special values | 12.9-10.11: Habitat for threatened plant species including Melaleuca irbyana. This ecosystem is known to provide suitable habitat for koalas (Phascolarctos cinereus). 12.9-10.11a: Habitat for threatened flora species including Melaleuca irbyana. |
| Fire management guidelines | SEASON: Late summer to mid-winter (after rain). INTENSITY: Planned and occasional unplanned burns (typically of higher intensity) influence the ecology of melaleuca ecosystems. INTERVAL: 6-20 years. INTERVAL_MIN: 6. INTERVAL_MAX: 20. STRATEGY: Aim for a 25-70% burn mosaic (in association with surrounding ecosystems, as melaleuca ecosystems often just occur in patches or along natural drainage lines). Fires may, depending on the conditions and type of vegetation, burn areas larger than just the melaleuca ecosystem. Ensure secure boundaries from non fire-regime adapted ecosystems. High soil moisture (or presence of water on the ground) is required, as avoidance of peat-type fires must be maintained. ISSUES: Typically very few shrubs or vines occur in Melaleuca irbyana forest due to the low penetration of light and heavy clay soils. Understorey of native forbs, twiners, grasses and sedges. |
| Comments | 12.9-10.11: This floristic association on land zone 3 is mapped as 12.3.3c. Restricted to Moreton Basin around Morton Vale, Calvert to Harrisville and Jimboomba. Being cleared for rural residential development and pasture production. 12.9-10.11a: Erected as the new RE 12.9-10.27 in August 2016. Generally the Melaleuca irbyana understorey ranges from sparse when associated with C. citriodora subsp. variegata and E. crebra to mid-dense when associated with E. moluccana & E. tereticornis. This floristic association on land zone 3 is mapped as 12.3.3b veg (C5a). Restricted to Moreton Basin around Ipswich and Jimboomba. Being cleared for rural residential development. |
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.
