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Regional ecosystem details for 9.3.11

Regional ecosystem 9.3.11
Vegetation Management Act class Least concern
Wetlands Palustrine
Biodiversity status Of concern
Subregion 5, (6), (4), (2), (1)
Estimated extent1 Pre-clearing 25000 ha; Remnant 2021 25000 ha
Short description Wetlands (sometimes ephemeral) with aquatic species and fringed with Eucalyptus spp. communities within basalt plains and flows
Structure code Sedgeland
Description Wetlands (sometimes ephemeral), fringed by grasses and sedges or with a fringing woodland which can contain Eucalyptus camaldulensis (river red gum) or E. tereticornis (bluegum) or Melaleuca fluviatilis (teatree). Occurs in pockets surrounded by rocky basalt walls, run-on areas and areas of alluvial deposition on basalt geologies. Palustrine. (BVG1M: 34d).

Vegetation communities in this regional ecosystem include:
9.3.11a: Wetlands (sometimes ephemeral), often with a fringing woodland which can contain Eucalyptus camaldulensis (river red gum) or E. tereticornis (bluegum) +/- Eucalyptus platyphylla (poplar gum) +/- E. leptophleba (Molloy red box). The fringing vegetation can also include a sub-canopy layer which can contain Melaleuca spp. (teatrees) Alternatively the fringing woodland species can occur as emergents +/- Casuarina spp. (sheoaks). Ground layer species present include Marsilea hirsuta (short-fruited nardoo), Schoenoplectus spp. (clubrush) and Eleocharis spp. (spike-rushes) This unit may have areas of grassland included. Occurs on run-on areas and areas of alluvial deposition on basalt geologies. Palustrine. (BVG1M: 34d).
9.3.11b: Permanent or ephemeral wetlands on dark basaltic clay with or without loose basalt rocks, surrounded by Quaternary basalt. This unit includes a mosaic of open areas and low rocky rises with Eucalyptus camaldulensis. Water bodies are fringed by Sesbania cannabina var. cannabina, grasses such as Paspalidium udum, and/or sedges such as Cyperus exaltatus, often with a zone of trees behind. Trees include Eucalyptus camaldulensis (river red gum) and/or Melaleuca fluviatilis (teatree). Open grassland areas include Eriochloa sp., Cyperus sp. and various other spp. Closed depressions in the great basalt wall surrounded by Quaternary basalt. Palustrine. (BVG1M: 34d).
Protected areas Undara Volcanic NP, Great Basalt Wall NP, Dalrymple NP, Kinrara NP
Special values 9.3.11: Seasonal wetlands significant for water bird feeding and breeding. 9.3.11a: Seasonal wetlands significant for water bird feeding and breeding.
Fire management guidelines SEASON: Do not burn deliberately. INTENSITY: Do not burn deliberately. Can occasionally tolerate low intensity fire. INTERVAL: Fire return interval flexible. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Manage surrounding country when soil moisture is high; allow fire to occasionally carry into melaleuca community. ISSUES: Fringing forest can be damaged by fire.
Comments 9.3.11: Occurs extensively though the McBride basalts and the Great Basalt Wall in the central and southern bioregion respectively. 9.3.11a: Occurs in scattered patches in the central and southern bioregion. 9.3.11b: Confined to within the Great Basalt Wall in the south of the bioregion. The naturalised grass Cynodon dactylon* is common in the ground layer.

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