Regional ecosystem details for 7.12.21
| Regional ecosystem | 7.12.21 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Endangered |
| Subregion | 5, 6, 9, 7, 4, 11.1, (9.6), (8), (9.3) |
| Estimated extent1 | Pre-clearing 16000 ha; Remnant 2021 15000 ha |
| Short description | Eucalyptus grandis open forest to woodland, or Corymbia intermedia, E. pellita and E. grandis open forest to woodland, (or vine forest with these species as emergents) on granites and rhyolites |
| Structure code | Open Forest |
| Description | Eucalyptus grandis (rose gum) open forest to woodland, or Corymbia intermedia (pink bloodwood), E. pellita (red stringybark), and E. grandis, open forest to woodland, (or vine forest with these species as emergents). Granites and rhyolites. Not a Wetland. (BVG1M: 8a). Vegetation communities in this regional ecosystem include: 7.12.21a: Eucalyptus grandis tall open forest and woodland. Granites and rhyolites. Not a Wetland. (BVG1M: 8a). 7.12.21b: Eucalyptus grandis tall open forest and woodland with a well-developed vine forest understorey. Granites and rhyolites. Not a Wetland. (BVG1M: 8a). 7.12.21c: Corymbia intermedia, Eucalyptus pellita, E. grandis, E. pellita x E. grandis tall open forest with Acacia aulacocarpa and Allocasuarina torulosa. Granites and rhyolites. Not a Wetland. (BVG1M: 8a). 7.12.21d: Corymbia intermedia, Eucalyptus pellita, E. grandis, E. pellita x E. grandis tall open forest with Acacia aulacocarpa and Allocasuarina torulosa, and with a very well-developed vine forest understorey. Granites and rhyolites. Not a Wetland. (BVG1M: 8a). |
| Supplementary description | Stanton and Stanton (2005), G121, G121v, G56, G56v, CG56, R121, R121v, R56, R56v; Tracey and Webb (1975), 14a |
| Protected areas | Girringun NP, Kirrama NP, Paluma Range NP, Mount Windsor NP, Koombooloomba NP, Mount Lewis NP, Bowling Green Bay NP, Dinden NP, Baldy Mountain FR, Daintree NP (CYPAL), Danbulla NP, Wooroonooran NP, Herberton Range NP, Tully Falls NP, Herberton Range CP, T |
| Special values | 7.12.21: Habitat for arboreal mammals. Habitat for plant species of limited distribution including Bertya polystigma, Pityrodia salviifolia, Pomaderris argyrophylla, Dodonaea uncinata, Phebalium longifolium and Persoonia tropica. |
| Fire management guidelines | SEASON: After the wet season when rain is reliably expected and there is good soil moisture. Burning in the dry season (Oct-Dec) will give high intensity fires. INTENSITY: Low to moderate with occasional high to control overabundance of tree recruitment in mid-stratum. INTERVAL: 3-5 years for grassy understorey. 6-10 years for shrubby understorey. INTERVAL_MIN: 3. INTERVAL_MAX: 10. STRATEGY: Aim for a good fire coverage to limit forest transitioning. Do not target moist areas, such as in or near gullies as these will provide a mosaic of denser vegetation and refuge for some plant species. ISSUES: High intensity fires can be used to control an over-abundance of mid-storey recruitment; once controlled return to normal fire regime. Follow-up fires may be required to control more advanced tree recruitment (e.g., of rainforest pioneers). |
| Comments | 7.12.21: Most of the variation within this regional ecosystem type is correlated with the frequency and intensity of fire, which modifies the lower layers of the forest. Grazing reduces fuel loads lowering intensity and frequency of fires. Past timber harvesting has influenced burning patterns. This regional ecosystem includes what was formerly in 7.12.14. Occurs as a narrow band, generally not more than a few hundred metres wide, on the western margin of the rainforests of the Mount Windsor Tableland, Mount Carbine Tableland, Lamb Range, Herberton Range, Cardwell Range and the Seaview Range. 7.12.21b: Well-developed vine forest understorey is probably a condition state caused by infrequent burning. |
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.
