Regional ecosystem details for 10.3.11
| Regional ecosystem | 10.3.11 |
|---|---|
| Vegetation Management Act class | Of concern |
| Wetlands | Riverine |
| Biodiversity status | Of concern |
| Subregion | 2, 4, (3), (11.3), (9.4) |
| Estimated extent1 | Pre-clearing 9000 ha; Remnant 2021 9000 ha |
| Short description | Corymbia citriodora or Lophostemon suaveolens and Angophora costata woodland to tall open forest in sandstone gorges and valleys |
| Structure code | Woodland |
| Description | Corymbia citriodora or Lophostemon suaveolens and Angophora costata woodland to tall open forest, commonly with Corymbia leichhardtii and Eucalyptus camaldulensis. A secondary tree layer dominated by canopy species usually occurs. A variable shrub layer usually occurs. Tussock grass ground layer, commonly dominated by Themeda avenacea, Cleistochloa subjuncea and Eriachne pallescens. Occurs on sandy colluvial and alluvial soils in valleys and gorges incised in sandstone ranges and plateaus. Riverine. (BVG1M: 10a). Vegetation communities in this regional ecosystem include: 10.3.11a: [RE not in use]²: This vegetation community is now mapped as 10.3.11b. Corymbia leichhardtii woodland, occasionally with Eucalyptus exilipes, Eucalyptus drepanophylla and Corymbia trachyphloia. Alphitonia excelsa, Acacia spp., Beyeria viscosa, Dodonaea viscosa and Petalostigma banksii are usually present and sometimes dominant in the shrub layer. Mixed ground layer including Triodia pungens, Cleistochloa subjuncea, Themeda avenacea and Cymbopogon bombycinus. Occurs in the northern parts of subregion 2 in upper parts of stream catchments with sandstone outcropping in their headwaters. Riverine. (BVG1M: 18a). 10.3.11b: Corymbia citriodora tall open forest to woodland, usually with Eucalyptus camaldulensis. Corymbia leichhardtii, Corymbia dallachiana and Corymbia plena commonly occur in the canopy. A secondary tree layer usually occurs and may include Corymbia leichhardtii, Corymbia citriodora, Eucalyptus exilipes, Corymbia plena and Eucalyptus camaldulensis. Acacia spp. dominated shrub layer. Tussock grass ground layer, commonly dominated by Themeda avenacea. Occurs on alluvium in sandstone landscapes. Riverine. (BVG1M: 10a). 10.3.11c: Lophostemon suaveolens and Angophora costata woodland to open forest, occasionally with Corymbia leichhardtii. A secondary tree layer usually occurs, including Lophostemon suaveolens, Acacia faucium, Angophora costata and Ficus rubiginosa. A variable shrub layer usually occurs. Cleistochloa subjuncea dominated ground layer with Eriachne pallescens and Triodia pungens. Occurs on alluvium in sandstone valleys and gorges in White Mountains National Park area. Riverine. (BVG1M: 18a). 10.3.11d: [RE not in use]²: This vegetation community is now mapped as 10.3.11b. Corymbia trachyphloia, Syncarpia glomulifera subsp. Glomulifera and Eucalyptus mediocris dominate the sparse canopy. Some other Corymbia spp. Are usually present in the canopy. The sparse shrub layer is usually dominated by Acacia spp., Coelospermum reticulatum and Seringia lanceolata are frequently present. Cleistochloa subjuncea usually dominates the very sparse to sparse ground layer. Occurs on alluvium in valleys. Riverine. (BVG1M: 18a). 10.3.11e: [RE not in use]²: This vegetation community is now mapped as 10.3.13a. Cyathea rebeccae dominates the sparse canopy. Lophostemon suaveolens is present in an emergent layer. Blechnum cartilagineum dominates the sparse ground layer. Other ferns are present. RE is defunct. Not a Wetland. (BVG1M: 18a). |
| Supplementary description | Bean (1992), Gg; Thompson and Turpin (in prep), C22, C31, C31a, C31c, C34 |
| Protected areas | White Mountains NP, Cudmore (Limited Depth) NP, White Mountains RR |
| Special values | 10.3.11: The White Mountains area of this ecosystem are habitat for Hemigenia sp. (Crooked Creek E.J.Thompson+ CHA228) , known from only one record in this habitat. Poorly known species Tephrosia sp. (Lake Buchanan E.J.Thompson+ BUC2128) occurs in is this ecosystem. Habitat for disjunct populations of Cyathea rebeccae and Triplarina paludosa. Dodonaea polyandra occurs at its most southerly known limit in this ecosystem in the White Mountains. Habitat values for arboreal fauna is high. As for other riparian zones, this ecosystem has important values for stabilising stream banks and top soils, providing corridors for wildlife, and for trapping soil and maintaining water quality. 10.3.11d: Eucalyptus mediocris can reach to 25m high in this ecosystem. |
| Fire management guidelines | SEASON: Wet to mid-dry season while soil retains moisture. INTENSITY: Low to occasional moderate. INTERVAL: Interval will depend on need for burning, seasonal conditions and grazing pressure. Approximately 5-10 years. Do not burn during drought years. Concentrate burning during wet years. INTERVAL_MIN: 5. INTERVAL_MAX: 10. STRATEGY: Patchy burns are preferred. Mosaic 50-80% of area targeted. Burn under conditions of good soil moisture and when plants are actively growing. Burns during dry periods may leave areas of soil exposed, leading to erosion. ISSUES: Grazing can impact heavily and combined with low rainfall fuel loads will be low making burning difficult. Can be advantageous to burn in year following good rains to manage currant bush and false sandalwood. |
| Comments | 10.3.11: Occurs in northern parts of subregion 2 and in subregion 4. Subject to selective logging. Potential for invasion by weed species. 10.3.11c: Restricted to deep gorges in the White Mountains National Park. 10.3.11d: Rare and unusual ecosystem only known from the Just Range in the north east. 10.3.11e: Very rare ecosystem confined to deep narrow ravines in the White Mountains National Park. |
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.
2 Superseded: Revision of the regional ecosystem classification removed this regional ecosystem code from use. It is included in the regional ecosystem description database because the RE code may appear in older versions of RE mapping and the Vegetation Management regulation.
