Regional ecosystem details for 11.3.13
| Regional ecosystem | 11.3.13 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Endangered |
| Subregion | 1, 2, (9.4) |
| Estimated extent1 | Pre-clearing 9000 ha; Remnant 2021 3000 ha |
| Short description | Grevillea striata open woodland on coastal alluvial plains |
| Structure code | Open Woodland |
| Description | Grevillea striata open woodland, with Corymbia tessellaris, C. clarksoniana or C. dallachiana occasionally present as isolated emergent trees. A shrub layer may be present, including Acacia crassicarpa, A. salicina, Atalaya hemiglauca, Bursaria incana, Carissa ovata, Pandanus spiralis or Psydrax attenuata. The ground layer is sparse to dense, including Neptunia gracilis, Sphaeromorphaea australis, Sida spp. And Brunoniella australis or grasses such as Themeda triandra, Panicum decompositum, Dichanthium sericeum and Sporobolus spp. Occurs on Cainozoic alluvial plains on flat coastal lowlands. Not a Wetland. (BVG1M: 27c). |
| Supplementary description | Christian et al. (1953), Ayr; Bean (1992); Kutt and Kemp (1998) |
| Protected areas | Bowling Green Bay NP, Horseshoe Lagoon CP, Cape Upstart NP |
| Fire management guidelines | SEASON: Primarily early dry season mild conditions. Some storm or late burns can be beneficial for rubbervine control. INTENSITY: Low to moderate. INTERVAL: 5-10 years. INTERVAL_MIN: 5. INTERVAL_MAX: 10. STRATEGY: A predominance of early dry season fires is recommended, although there is value in occasional late dry season fires, or storm burns, over small areas for rubbervine control. ISSUES: These Grevillea striata dominated woodlands with scattered eucalypts are fairly tolerant of low to moderate intensity fires. Rubbervine infestations are common within 11.3.13, with repeated fires valuable for its control. Ensure persistence of dominant species and reductions in weed abundance. |
| Comments | 11.3.13: Often occurs in close proximity to Sporobolus virginicus grasslands (RE 11.1.1) or brackish channels. Extensively cleared for cropping. The ground layer has been extensively modified by total grazing pressure and weed invasion, particularly *Acacia nilotica (prickly Acacia) and *Chloris inflata (purpletop chloris). |
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.
