Regional ecosystem details for 8.2.12
| Regional ecosystem | 8.2.12 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 5, (4), (11.14) |
| Estimated extent1 | Pre-clearing 3000 ha; Remnant 2021 2000 ha |
| Short description | Corymbia intermedia and/or Eucalyptus latisinensis and/or Acacia spp. and/or other heath spp. Shrublands and woodlands on parallel dunes (subregions 4 and 5) |
| Structure code | Woodland |
| Description | Corymbia intermedia and/or Eucalyptus latisinensis and/or Allocasuarina littoralis low open woodland to open forest (4-18m tall) with a heath understorey, or Acacia julifera subsp. curvinervia and/or Leptospermum neglectum and/or Ricinocarpos pinifolius and/or Acacia flavescens dwarf open shrubland to open scrub (to low open woodland to woodland). Parallel dunes. Not a Wetland. (BVG1M: 9d). Vegetation communities in this regional ecosystem include: 8.2.12a: Corymbia intermedia and/or Eucalyptus latisinensis and/or Allocasuarina littoralis low open woodland to open forest (4-18m tall). Associated species in the canopy may include Eucalyptus crebra, Corymbia clarksoniana, Eucalyptus exserta, Petalostigma triloculare, Acacia flavescens and Acacia julifera subsp. curvinervia. Occasionally there are emergents such as E. latisinensis. There is sometimes a secondary tree layer dominated by species such as Acacia julifera subsp. curvinervia, Leptospermum neglectum and Allocasuarina littoralis. Shrub layers are sometimes present, and dominants and associated species include Lithomyrtus obtusa, Pityrodia salviifolia, Acacia julifera, Planchonia careya, A. flavescens and Hibbertia linearis. Typical species in the ground layer include Caustis recurvata (often dominant), Xanthorrhoea latifolia subsp. latifolia, Dianella caerulea, Themeda triandra, Eriachne sp., Imperata cylindrica and Monotoca scoparia. Occurs on parallel dunes (subregions 4 and 5). Dunes include Qpcb (Pleistocene quartzose to shelly sand older beach ridges), Qr (Quaternary clay, silt and sand), Qhcd (Holocene blow-out frontal quartz dune) and Qhcd? (Holocene blow-out frontal quartz dune). Not a Wetland. (BVG1M: 9e). 8.2.12b: Acacia julifera subsp. curvinervia and/or Leptospermum neglectum and/or Ricinocarpos pinifolius and/or Acacia flavescens dwarf open shrubland to open scrub (to low open woodland to woodland). Where a tree layer is present, dominants and associated species include Allocasuarina littoralis, Acacia julifera subsp. curvinervia, Corymbia clarksoniana, Eucalyptus exserta, and Banksia integrifolia subsp. compar. When the canopy is formed by shrubs, dominants may include Leptospermum neglectum, Ricinocarpos pinifolius, Acacia julifera subsp. curvinervia and A. flavescens. Associated shrubs include Pityrodia salviifolia, Grevillea banksii, Platysace linearifolia and Lithomyrtus obtusa. The ground layer is often dominated by Caustis recurvata, with other dominants or associated species including Lithomyrtus obtusa, Trachystylis stradbrokensis, Eriachne sp., Entolasia stricta, Xanthorrhoea latifolia subsp. latifolia, Eriachne insularis and Platysace linearifolia. Occurs on parallel dunes (subregions 4 and 5). Dunes include Qr (Quaternary clay, silt, sand, gravel and soil; colluvial and residual deposits), and Qpcb (Pleistocene quartzose to shelly sand, coquina: older coastal beach ridges, cheniers). Not a Wetland. (BVG1M: 28b). |
| Supplementary description | Bailey et al. (2003), CF-2, AS-2; Brushe et al. (in prep), Map Unit 10, 13b |
| Protected areas | Byfield NP |
| Special values | 8.2.12a: Habitat for several species at the northern limit of their range, including Brachyloma daphnoides, Homoranthus virgatus, Phebalium woombye, Phyllota phylicoides, Platysace linearifolia, Caustis recurvata, Pseudanthus orientalis, Persoonia virgata and Zieria laxiflora. 8.2.12b: Habitat for several species at the northern limit of their range, including Homoranthus virgatus, Phyllota phylicoides, Platysace linearifolia, Zieria laxiflora, Caustis recurvata, Phebalium woombye, Brachyloma daphnoides and Pseudanthus orientalis. |
| Fire management guidelines | SEASON: Late Autumn/ early winter. INTENSITY: Moderate to high. INTERVAL: Minimum 8-10 years interval between fires. INTERVAL_MIN: 8. INTERVAL_MAX: 50. ISSUES: 8.2.12a: Imperata cylindrica is probably an artefact of inappropriate fire causing displacement of heath. Highly erodible. 8.2.12b: Potentially very weedy as a result of disturbance through cattle grazing. |
| Comments | 8.2.12a: Distinguished from 8.2.12b and the 8.2.3 series by the dominance of Eucalyptus or Corymbia species (or Allocasuarina with Corymbia); distinguished from the 8.2.8 series by occurrence on parallel instead of parabolic dunes. Distinguished from the 8.2.14 series by the dominance of other species besides Corymbia tessellaris and the occurrence on parallel instead of parabolic dunes. Distinguished from the 8.2.6 series by the dominance of other eucalypts besides Corymbia tessellaris. Differs from 8.2.13a by the landscape position and substrate (definite dune ridges as opposed to swales mixed with alluvial material). Occurs in subregion 5 within Port Clinton and between Cape Clinton and The Peaks (20km north of Corio Bay). Also found between Corio Bay and Yeppoon, and Great Keppel Island. Overall the condition is good, with minimal weed invasion and human disturbance. Examples outside the Shoalwater Bay Training Area are more fragmented by roads and are more likely to suffer weed invasion. 8.2.12b: Distinguished from 8.2.12a by the dominance of Acacia spp. or Leptospermum spp. or Ricinocarpos spp. (as opposed to Eucalyptus spp. or Corymbia spp. (or Allocasuarina with Corymbia spp.). Can be very similar to 8.2.3d but tends to have a higher proportion of Acacia and is less heathy. Distinguished from 8.2.3a by the occurrence on parallel dunes (instead of parabolic dunes or whaleback dunes). Distinguished from the 8.2.8 series by occurrence on parallel instead of parabolic dunes. Distinguished from the 8.2.14 series by the dominance of other species besides Corymbia tessellaris and the occurrence on parallel instead of parabolic dunes. Distinguished from the 8.2.6 series by the dominance of other eucalypts besides Corymbia tessellaris. Differs from 8.2.13a by the landscape position and substrate (definite dune ridges as opposed to swales mixed with alluvial material). Occurs in subregion 5 from Pinetrees Point (just north of the mouth of Island Head Creek), to Cliff Point (just north of Cape Manifold). Also found near Corio Bay. Overall the condition is good, with minimal weed invasion and human disturbance. Examples outside the Shoalwater Bay Training Area are more fragmented by roads and are more likely to suffer weed invasion. |
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.
