Regional ecosystem details for 7.3.33
| Regional ecosystem | 7.3.33 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Lacustrine |
| Biodiversity status | Endangered |
| Subregion | 4, 7 |
| Estimated extent1 | Pre-clearing 200 ha; Remnant 2021 200 ha |
| Short description | Open water and narrow shoreline sedge fringes of lakes in volcanic craters |
| Structure code | Bare |
| Description | Open water, and narrow shoreline sedge fringes. Lakes within volcanic craters. Lacustrine. (BVG1M: 34a). Vegetation communities in this regional ecosystem include: 7.3.33a: Sedgeland. Fringing lakes within volcanic craters. Palustrine. (BVG1M: 34a). 7.3.33b: Open water of lakes. Volcanic craters. Lacustrine. (BVG1M: 34a). |
| Supplementary description | Stanton and Stanton (2005), A260e, A71 |
| Protected areas | Crater Lakes NP, Danbulla NP |
| Special values | 7.3.33: A unique and rare lake ecosystem. Originally habitat for Lake Eacham rainbow fish (Melanotaenia eachamensis) which is now extinct from the lake and is Endangered under the Environment Protection and Biodiversity Conservation Act 1999. |
| Fire management guidelines | INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Do not burn deliberately. Perimeter burning early in the fire season may limit the extent and intensity of wildfire incursions. Burning may be useful for weed management. a: Exclude fire. ISSUES: Coastal she-oaks and river oaks are sensitive to fire. Fire in the litter layer of river oaks (Allocasuarina/Casuarina) will be of low intensity and patchy. Storm burning may be useful to minimise scorch intensity to fire sensitive Casuarina. No active fire management required, except as part of weed control. Fire could be useful in controlling Singapore daisy, Sphagneticola trilobata, lantana, Lantana camara and high biomass grasses (such as grader grass Themeda quadrivalvis). a: These communities should not normally burn owing to the presence of standing water. Exclusion of fire should reduce the risk of peat fires. |
| Comments | 7.3.33: Restricted to the Atherton Tablelands at Lake Euramoo, Lake Barrine, Lake Eacham and Bromfield swamp. Fish and crayfish introductions to Lake Eacham have led to local extinction of at least one endemic fish. Lakes Barrine and Eacham experience heavy recreational use. 7.3.33a: Lake Euramoo is contained with the Wet Tropics World Heritage area and visitor traffic is controlled. Only fringing Lake Euramoo, on the Atherton Tablelands east of Lake Tinaroo. 7.3.33b: Atherton Tablelands. |
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.
