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Regional ecosystem details for 12.3.12

Regional ecosystem 12.3.12
Vegetation Management Act class Least concern
Wetlands Contains Palustrine
Biodiversity status No concern at present
Subregion 8, 10, 9, (7)
Estimated extent1 Pre-clearing 18000 ha; Remnant 2021 13000 ha
Short description Eucalyptus latisinensis or E. exserta, Melaleuca viridiflora var. viridiflora woodland on alluvial plains
Structure code Woodland
Description Melaleuca viridiflora var. viridiflora, Eucalyptus latisinensis or E. exserta +/- Melaleuca quinquenervia, Corymbia intermedia, E. tereticornis woodland. Occurs on drainage lines along coastal lowlands. Contains Palustrine. (BVG1M: 21a).
Supplementary description Ryan, T.S. (ed.) (2012); Bean et al. (1998), D9b, D10
Protected areas Eurimbula NP, Deepwater NP, Burrum Coast NP, Bingera NP, Littabella NP, Great Sandy CP
Special values 12.3.12: Habitat for threatened plant species including Germainia capitata.
Fire management guidelines SEASON: Late summer to mid-winter (after rain). INTENSITY: Planned and occasional unplanned burns (typically of higher intensity) influence the ecology of melaleuca ecosystems. INTERVAL: Heath 8-12 years, Sedge 12-20 years, Mixed grass/shrub 6-20 years. INTERVAL_MIN: 6. INTERVAL_MAX: 20. STRATEGY: Aim for a 25-70% burn mosaic (in association with surrounding ecosystems, as melaleuca ecosystems often just occur in patches or along natural drainage lines). Fires may, depending on the conditions and type of vegetation, burn areas larger than just the melaleuca ecosystem. Ensure secure boundaries from non fire-regime adapted ecosystems. Consider the needs of melaleuca ecosystems based on understorey (i.e., heath dominated, sedge dominated or mixed grass/shrub) when planning burns. High soil moisture (or presence of water on the ground) is required, as avoidance of peat-type fires must be maintained. ISSUES: Fire regimes for melaleuca ecosystems require further fire research. Melaleuca forests are fire-adapted, but too high an intensity or frequent fire will slow or prevent regeneration and lead to lower species richness (since these communities contain numerous obligate seed regenerating species that require sufficient fire intervals to produce seed). High intensity fires may kill trees and lead to whipstick regeneration. Too frequent fire may result in a net loss of nutrients over time from an already nutrient poor system. Fire associations are significantly influenced by understorey composition. Melaleuca communities with a heath understorey should burn in a similar way to coastal heath (8-12 years). Sedge understorey communities will burn in association with the surrounding ecosystems (so will often burn with them but sometimes not, such that these communities have a slightly less fire frequency). Mixed understorey communities burn in a similar way to dry sclerophyll, in association with the surrounding dry sclerophyll, though somewhat less frequently due to the additional moisture present in melaleuca communities.
Comments 12.3.12: North from Cooloola.

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.

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Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
14 May 2024