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Regional ecosystem details for 11.12.16

Regional ecosystem 11.12.16
Vegetation Management Act class Of concern
Biodiversity status Of concern
Subregion 1, 2, 8.6, (7.1), (9.4)
Estimated extent1 Pre-clearing 4000 ha; Remnant 2019 4000 ha
Extent in reserves High
Short description Mixed low woodland to shrubland on igneous rocks. Coastal hills
Structure category Sparse
Description Mixed low woodland to shrubland. Canopy species include Lophostemon grandiflorus, Canarium australianum Pleiogynium timorense, Acacia leptostachya, A. spirorbis subsp. solandri, Cochlospermum gillivraei +/- Eucalyptus drepanophylla +/- Eucalyptus portuensis +/- Corymbia tessellaris +/- C. dallachiana and semi-evergreen vine thicket species. Ground layer is often dominated by Triodia stenostachya. Occurs on coastal ranges formed on Mesozoic to Proterozoic igneous rocks. (BVG1M: 24a)

Vegetation communities in this regional ecosystem include:
11.12.16a: Acacia julifera shrubland +/- Eucalyptus drepanophylla. (BVG1M: 24a)
11.12.16d: Grassland with scattered shrubs or trees or very open shrubland / low woodland with Triodia stenostachya, Heteropogon contortus, H. triticeus, Cymbopogon bombycinus, C. ambiguus +/- Cochlospermum gillivraei +/- Araucaria cunninghamii +/- Corymbia dallachiana +/-- C. tessellaris. (BVG1M: 29b)
11.12.16x1: Tussock grassland with scattered shrubs to low very open scrub. Various grasses may be dominate: Heteropogon contortus, H. triticeus, Themeda triandra, Sarga plumosum, Cymbopogon bombycinus, C. ambiguus, Eriachne mucronata and Triodia stenostachya. Occurs on rhyolite or granite hills, headlands and islands. (BVG1M: 32b)
Supplementary description Sandercoe (1990), 15, 16, 18
Protected areas Magnetic Island NP, Townsville Town Common CP, Gloucester Island NP, Mount Abbot NP (S), Bowling Green Bay NP, Cape Pallarenda CP, Bowling Green Bay CP
Special values Potential habitat for NCA listed species: Corchorus hygrophilus, Marsdenia brevifolia, Solanum graniticum, Solanum sporadotrichum
Fire management guidelines SEASON: Various. INTENSITY: Moderate to high. INTERVAL: 8-15 years. STRATEGY: Burn in association with surrounding vegetation. Burn less than 30% in any year. ISSUES: Acacia leptostachya, and others, has germination promoted by fires, but seedlings require > 5 years to mature. These Acacias begin to senesce after approximately 10 to 15 years, and associated grasses disappear after around 5 to 10 years. Therefore burning intervals of 8 to 15 years can maintain the species composition and structure of this community. Ensure a mature woodland structure persists for many years in between fire events; maintain a diverse grass layer in sections of this ecosystem.
Comments 11.12.16: occurs on Magnetic Island and other coastal hills and ranges. 11.12.16d: Confined mainly to Magnetic Island and occurs with 11.12.16. 11.12.16x1: Occurs in small areas in the Rattlesnake Island, Herald Island, Many Peaks Range - Townsville Town Common, and Cape Cleveland areas. Where this regional ecosystem occurs on remote islands, it remains in good condition. Examples on long-settled islands have been often become weed-infested, especially with blue snakeweed (*Stachytarpheta jamaicensis), tridax (*Tridax procumbens), red Natal grass (*Melinis repens) and Indian Couch (*Bothriochloa pertusa). Restricted to low coastal islands and headlands subject to strong sea breezes.

1 Estimated extent is from version 12 pre-clearing and 2019 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.

Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
12 March 2021
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