Regional ecosystem details for 9.12.43
| Regional ecosystem | 9.12.43 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Not a Wetland |
| Biodiversity status | Of concern |
| Subregion | 3, 2, (7.9) |
| Estimated extent1 | Pre-clearing 7000 ha; Remnant 2021 7000 ha |
| Short description | Granite and rhyolite boulders and pavements edged with patches of Callitris intratropica +/- vine thicket species |
| Structure code | Bare |
| Description | Granite and rhyolite boulders and pavements with scattered Poaceae or low open forest of Callitris intratropica (cypress pine) +/- vine thicket species. Occurs on granite and rhyolite boulder fields on steep side slopes and rocky hills. Not a Wetland. (BVG1M: 29b). Vegetation communities in this regional ecosystem include: 9.12.43a: Scattered clumped grasses which can include Schizachyrium fragile (firegrass), Themeda triandra (kangaroo grass), Heteropogon contortus (black speargrass) Cymbopogon bombycinus (lemon-scented grass) +/- Cyperus spp., Drynaria spp., Plectranthus spp. and Isotoma spp. Occurs in cracks and shallow hollows on bare rock. Not a Wetland. (BVG1M: 29b). 9.12.43b: Low open forest to low woodland of Callitris intratropica (cypress pine) +/- Cochlospermum gillivraei (kapok) +/- Terminalia spp. Commonly includes vine-thicket species Homalium brachybotrys, Erythrina vespertilio (batswing coral tree), Ficus spp., Sersalisia sericea, Strychnos lucida (strychnine bush) and Drynaria spp. Vines present may include Smilax australis. The sparse to mid-dense grassy ground cover can include Aristida spp., Heteropogon spp. Themeda triandra (kangaroo grass) and Cymbopogon spp. Occurs on edges of, and in patches across, boulder fields and pavements. Not a Wetland. (BVG1M: 29b). |
| Protected areas | Mount Lewis NP |
| Fire management guidelines | SEASON: Do not burn deliberately. INTENSITY: Do not burn deliberately. INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Do not burn deliberately. Early dry season, low intensity burns in surrounding country to limit possibility of fire encroachment. ISSUES: Considered fire sensitive. Generally protected from fire by location in the landscape and few flammable grasses in understorey. Scorching of margins notable where there is disturbance, invasive high biomass grasses or lantana. Late dry season fires are particularly deleterious, leading to attrition of vine thicket. |
| Comments | 9.12.43: Occurs mainly north-west of Mt. Carbine in the north of the bioregion. 9.12.43a: On rock margins of the Featherbed Volcanics patches of Triodia microstachya and Acacia chisholmii may be present. Occurs mainly north-west of Mt. Carbine in the north of the bioregion. 9.12.43b: Occurs from Kondaparinga to Maitland Downs in the north of the bioregion. |
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.
