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Regional ecosystem details for 12.1.1

Regional ecosystem 12.1.1
Vegetation Management Act class Of concern
Wetlands Estuarine wetlands (e.g. mangroves).
Biodiversity status Of concern
Subregion 4, 1, 8, 9, (3), (2), (7)
Estimated extent1 Pre-clearing 6000 ha; Remnant 2019 4000 ha
Extent in reserves High
Short description Casuarina glauca woodland on margins of marine clay plains
Structure category Sparse
Description Casuarina glauca open forest to low open woodland. Occurs on margins of Quaternary estuarine deposits. (BVG1M: 28a)
Supplementary description Ryan, T.S. (ed.) (2012), Bean et al. (1998), A2
Protected areas Southern Moreton Bay Islands NP, Great Sandy CP, Pumicestone NP, Great Sandy NP, Bribie Island NP, Burrum Coast NP, Eurimbula NP, Curtis Island CP, Eurimbula RR, Eudlo Creek CP, Coombabah Lake CP, Curtis Island NP, Coolum Creek CP, Wild Cattle Island NP, Noosa NP, Poona NP, Mouth of Kolan River CP, Mouth of Baffle Creek CP 1, Tallebudgera Creek CP, Mooloolah River NP, Goat Island (Noosa River) CP, South Stradbroke Island CP, Ningi Creek CP, Bottle Creek CP, Cooroibah CP, Bullock Creek CP, Sheep Island CP, Deception Bay CP, Saltwater Creek CP, Tingalpa Creek CP, Broadwater CP, Hays Inlet CP 1, David Fleay CP, Maroochy River CP, Weyba Creek CP, Hays Inlet CP 2, Maroochy Wetlands CP, Southend CP
Special values Provides estuarine wetland habitat.
Fire management guidelines SEASON: Early winter or storm burning seasons. INTENSITY: Low to moderate. INTERVAL: Aim for a 6-7 year minimum threshold at a broad scale planning level. STRATEGY: Aim to retain at least 25-50% unburnt in any given year. This RE needs disturbance to maintain structure. Use fire to reduce opportunistic native (Allocasuarina spp.) or weed species dominance. Active fire management is required to reduce the accumulation of a significant dry fuel layer. Burns planned in surrounding REs should account for the disturbance requirements of this fringing vegetation. ISSUES: The fire ecology of this regional ecosystem is poorly known. Monitoring the impact of fire and recovery of the ecosystem's component species is highly desirable. A long fire interval could increase fire intensity when fire occurs, thus detrimentally affecting the tree layer. Recovery should be relatively quick (approximately 10 years to a woodland/open forest community). A 'grassy' ecosystem might be lost if fire is excluded or too frequent (<2 years). Signs of problems in this community might include the regeneration of 'whipstick' communities and/or the presence of weeds (such as lantana). Fire exclusion and buffering from fire is not necessary. Where obligate seeding allocasuarinas are present in the under- and mid-storeys, fires causing 100% leaf scorch will kill these trees; therefore fires of this intensity should be avoided. A seven year minimum fire interval is required for obligate seeding allocasuarinas and casuarinas.
Comments Patches often too small to map at 1:100 000. Infrequently tidally inundated. This RE occupies a very small niche at upper end of tidal zone.

1 Estimated extent is from version 12 pre-clearing and 2019 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.

Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
12 March 2021
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