Regional ecosystem details for 3.1.2
| Regional ecosystem | 3.1.2 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Intertidal |
| Biodiversity status | No concern at present |
| Subregion | 7, 9, 3, (4), (6), (2), (8), (5) |
| Estimated extent1 | Pre-clearing 27000 ha; Remnant 2021 26000 ha |
| Short description | Avicennia marina low open forest |
| Structure code | Low Open Forest |
| Description | Low open forest of Avicennia marina (grey mangrove). Occurs in downstream to intermediate estuarine areas in the mainly high intertidal zones throughout the bioregion. Intertidal. (BVG1M: 35a). Vegetation communities in this regional ecosystem include: 3.1.2a: Low open forest of Avicennia marina (grey mangrove). Ceriops tagal (yellow mangrove) and Lumnitzera racemosa (black mangrove) can occur in a sub-canopy while a sparse shrub layer can contain juvenile A. marina. The sparse ground layer can include Sporobolus virginicus (marine couch). Occurs in downstream to intermediate estuarine areas in the mainly high intertidal zones throughout the bioregion. Intertidal. (BVG1M: 35a). 3.1.2b: Semi deciduous transitional vine forest with Xylocarpus granatum (cannonball mangrove) and Manilkara kauki (Wonga nut). Occurs on calcareous sandy coral deposits within the tidal zone. Intertidal. (BVG1M: 35a). |
| Protected areas | Rinyirru (Lakefield) NP (CYPAL), Endeavour River NP, Cape Melville NP (CYPAL), Flinders Group NP (CYPAL), Annan River (Yuku Baja-Muliku) NP, Three Islands Group NP, Possession Island NP, Marpa National Park (CYPAL), Round Island CP |
| Special values | 3.1.2a: Provides estuarine wetland habitat. |
| Fire management guidelines | INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: No fire management required. ISSUES: Non-flammable vegetation. |
| Comments | 3.1.2: Occurs in upper tidal zones around Bathurst Bay and Pormpuraaw as well as across the Torres Strait Islands. 3.1.2a: On Biogu Island can occur as a tall open forest. Occurs in upper tidal zones around Bathurst Bay and Pormpuraaw as well as across the Torres Strait Islands. 3.1.2b: Closely associated with open forests of Avicennia marina (RE 3.1.2a). Restricted to Sassie Island in the Torres Strait. |
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.
