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Regional ecosystem details for 10.3.19

Regional ecosystem 10.3.19
Vegetation Management Act class Endangered
Wetlands Not a Wetland
Biodiversity status Endangered
Subregion 2
Estimated extent1 Pre-clearing 5000 ha; Remnant 2021 1000 ha
Short description Acacia cambagei woodland on lakeside dunes
Structure code Woodland
Description Acacia cambagei open forest, commonly with a second tree layer of Eremophila mitchellii. Shrub layer of Eremophila mitchellii and Carissa lanceolata and sparse mixed ground layer. Occurs on calcareous duplex soils on old dunes and degraded dune material fringing Lake Galilee. Not a Wetland. (BVG1M: 26a).
Supplementary description Gunn et al. (1967), G; Lorimer (1998), Qd2; Thompson and Turpin (in prep), A13f
Special values 10.3.19: This ecosystem is an unusual occurrence, having significant geomorphic values indicative of past climates. It is endemic to Lake Galilee.
Fire management guidelines SEASON: Wet to mid-dry season. Avoid late dry (August -September) as intensity will be too high (August -September). INTENSITY: Low. INTERVAL: 6-10 years, but will depend on seasonal conditions and grazing pressure. INTERVAL_MIN: 6. INTERVAL_MAX: 10. STRATEGY: Fire is not generally applied directly to acacia dominated communities, but to surrounding fire-adapted communities in order to create a landscape mosaic of burnt/unburnt areas to mitigate against wildfire. Ensure fires are patchy. ISSUES: Acacias are fire sensitive and may be killed by high intensity or too frequent fire. These communities generally have sparse ground layer. Will only burn following irregular high rainfall events. Buffel may lead to high fire intensities where ecosystem is heavily infested.
Comments 10.3.19: Fringing Lake Galilee. The deep fine sandy topsoils have very low fertility and are extremely susceptible to wind erosion. It is largely cleared for pasture development. Remnants have heavy infested with Buffel grass.

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.

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Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
14 May 2024