Nature conservation

Threatened species

Tableland Basalt Forest in the Sydney Basin and South Eastern Highlands Bioregions - profile

Indicative distribution


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Key:
known
predicted
The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas. ( click here to see geographic restrictions). The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Tableland Basalt Forest in the Sydney Basin and South Eastern Highlands Bioregions
Conservation status in NSW: Endangered Ecological Community
Commonwealth status: Not listed
Gazetted date: 04 Jan 2008
Profile last updated: 07 Sep 2017

Description

Tableland Basalt Forest is dominated by an open eucalypt canopy of variable composition. Eucalyptus viminalis, E. radiata, E. dalrympleana subsp. dalrympleana and E. pauciflora may occur in the community in pure stands or in varying combinations. The community typically has an open canopy of eucalypts with sparse mid-story shrubs (e.g. Acacia melanoxylon and A. dealbata) and understory shrubs (e.g. Rubus parvifolius) and a dense groundcover of herbs and grasses, although disturbed stands may lack either or both of the woody strata. The structure of the community varies depending on past and current disturbances, particularly fire history, clearing and grazing. Contemporary tree-dominated stands of the community are largely relics or regrowth of originally taller forests and woodlands, which are likely to have had scattered shrubs and a largely continuous grassy groundcover. At some sites, mature trees may exceed 30 m tall, although regrowth stands may be shorter than 10 m tall.

Distribution

Tableland Basalt Forest is currently found in the Eastern Highlands and Southern and Central Tablelands, covering the local government areas of Bathurst Regional, Goulburn Mulwaree, Oberon, Palerang, Shoalhaven, Upper Lachlan and Wingecarribee. The community, however, may be found elsewhere within the designated bioregions.

Habitat and ecology

  • Tableland Basalt Forest typically occurs on loam or clay soils associated with basalt or, less commonly, alluvium, fine-grained sedimentary rocks, granites and similar substrates that produce relatively fertile soils.
  • The species composition of Tableland Basalt Forest varies with average annual rainfall. On basalt or plutonic substrates east of Mittagong and Moss Vale, at the eastern edge of its distribution where average rainfall exceeds 1000-1100 mm per year, the community is replaced by Robertson Basalt Tall Open-forest and Mount Gibraltar Forest.
  • Its distribution spans altitudes from approximately 600 m to 900 m above sea level, usually on undulating or hilly terrain.
  • Mean annual rainfall varies from approximately 750 mm up to 1100 mm across the distribution of the community.

Regional distribution and habitat

Click on a region below to view detailed distribution, habitat and vegetation information.


Threats

Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
South Eastern HighlandsBathurst Known None
South Eastern HighlandsBungonia Known None
South Eastern HighlandsCrookwell Known None
South Eastern HighlandsHill End Predicted None
South Eastern HighlandsKanangra Known None
South Eastern HighlandsKybeyan-Gourock Known None
South Eastern HighlandsMonaro Known None
South Eastern HighlandsOberon Known None
South Eastern HighlandsOrange Predicted None
Sydney BasinBurragorang Known None
Sydney BasinEttrema Known None
Sydney BasinMoss Vale Known None