Regional ecosystem details for 5.7.15
| Regional ecosystem | 5.7.15 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Not a Wetland |
| Biodiversity status | No concern at present |
| Subregion | 4, (4.5), (4.4), (4.3), (5) |
| Estimated extent1 | Pre-clearing 54000 ha; Remnant 2021 53000 ha |
| Short description | Triodia longiceps +/- Triodia spp. hummock grassland on talus slopes of dissected tablelands and residuals |
| Structure code | Hummock Grassland |
| Description | Triodia longiceps +/- Triodia spp. hummock grassland, scattered shrubs and emergent low trees may occur but do not form conspicuous layers. In places Triodia molesta may be dominant on the upper slopes, and Triodia longiceps, Triodia pungens and occasionally, Triodia brizoides dominating the lower slopes. Other grasses and forbs may be present depending on seasonal conditions and degree of disturbance. Occurs on talus slopes of dissected tablelands and residuals on deeply weathered Tertiary and Cretaceous sediments. Soils generally shallow, gravelly red earths and lithosols. Not a Wetland. (BVG1M: 33b). |
| Supplementary description | Neldner (1991), 38b |
| Protected areas | Diamantina NP, Pullen Pullen SWR, Bladensburg NP, Goneaway NP, Lark Quarry CP |
| Special values | 5.7.15: Habitat for threatened fauna including Pezoporus occidentalis (night parrot). |
| Fire management guidelines | SEASON: Storm season or wet season. INTENSITY: Low to moderate. INTERVAL: Minimum 5 to 6 years but require patches with greater fire intervals in the mosaic also. INTERVAL_MIN: 5. INTERVAL_MAX: 6. STRATEGY: Maintenance of a multi-aged mosaic of spinifex communities should protect these fire tolerant ecosystems and adjacent ecosystems which may not be so tolerant of burning. Burn with good soil moisture. Under hot and dry conditions, fires can burn with high intensity in these ecosystems. ISSUES: Ensure multi-aged mosaic maintained at a landscape level, including long unburnt patches, e.g., both large, mature clumps (to approximately 10 years old) and also areas of over-mature and senescent plants (> approximately 10 years old). Burning too much and this reducing ground cover for long periods, may promote sand shift. Winter burns may favour shrubs over Triodia spp. and thus change the ground layer over time. |
| Comments | 5.7.15: Goneaway tablelands, Diamantina National Park. Requires burning in a mosaic pattern to maintain biodiversity. |
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.
