Biodiversity

Species Profile and Threats Database


For information to assist proponents in referral, environmental assessments and compliance issues, refer to the Policy Statements and Guidelines (where available), the Conservation Advice (where available) or the Listing Advice (where available).
 
In addition, proponents and land managers should refer to the Recovery Plan (where available) or the Conservation Advice (where available) for recovery, mitigation and conservation information.

EPBC Act Listing Status Listed as Vulnerable
Listing and Conservation Advices Commonwealth Conservation Advice on Acacia awestoniana (Stirling Range Wattle) (Threatened Species Scientific Committee, 2008gj) [Conservation Advice].
 
Recovery Plan Decision Recovery Plan not required, included on the Not Commenced List (1/11/2009).
 
Adopted/Made Recovery Plans
Federal Register of
    Legislative Instruments
Declaration under s178, s181, and s183 of the Environment Protection and Biodiversity Conservation Act 1999 - List of threatened species, List of threatened ecological communities and List of threatening processes (Commonwealth of Australia, 2000) [Legislative Instrument].
 
State Government
    Documents and Websites
WA:Declared Rare & Poorly Known Flora in the Albany District. Western Australian wildlife management program no. 20 (Robinson, C.J. & D.J. Coates, 1995) [State Action Plan].
State Listing Status
WA: Listed as Critically Endangered (Wildlife Conservation Act 1950 (Western Australia): September 2013 list)
Scientific name Acacia awestoniana [55562]
Family Fabaceae:Fabales:Magnoliopsida:Magnoliophyta:Plantae
Species author R.S.Cowan & Maslin
Infraspecies author  
Reference Nuytsia 7(2) (1990) 187.
Distribution map Species Distribution Map

This is an indicative distribution map of the present distribution of the species based on best available knowledge. See map caveat for more information.

Illustrations Google Images

The Stirling Range Wattle is a straggly shrub growing to 3 m high, but is usually 1.5-2 m high (Brown et al. 1998), and up to 4 m in diameter (Cowan & Maslin 1990; Paczkowska & Chapman 2000). It has globular, golden flower heads (Brown et al. 1998).

The species is endemic to Stirling Ranges NP (Cowan & Maslin 1990; Robinson & Coates 1995; Brown et al. 1998; Orchard & Wilson 2001a), 80 km north of Albany, in south-western WA (Orchard & Wilson 2001a), where it is rare and confined to the northern boundary area (Cowan & Maslin 1990).

In 1995, the species was only known to exist at Chester Pass Rd, the type location (Robinson & Coates 1995). Brown et al. (1998) later reported that two populations were known.

A survey in 1993, revealed nine healthy plants at the Chester Pass Rd population (Robinson & Coates 1995). By 1998, all plants in the type population were in poor condition showing signs of stress or disease (Brown et al. 1998).

A second population was reported by Brown et al. (1998), containing about 200 plants growing in an isolated area covering 0.25 ha.

The species is conserved in Stirling Ranges NP, with fewer than 1000 individuals (Briggs & Leigh 1996).

Grows in wandoo woodland or along watercourses (Cowan & Maslin 1990; Brown et al. 1998; Orchard & Wilson 2001a). Pebbles overlay the loam or sandy clay loam soil (Brown et al. 1998; Paczkowska & Chapman 2000). Associated species include: Eucalyptus wandoo, E. redacta and Acacia pulchella (Brown et al. 1998).

Flowers are borne Sept.-Nov. (Brown et al. 1998; Paczkowska & Chapman 2000). Seed set appears to be low. Seedlings were noted after an autumn fire (Brown et al. 1998).

The following table lists known and perceived threats to this species. Threats are based on the International Union for Conservation of Nature and Natural Resources (IUCN) threat classification version 1.1.

Threat Class Threatening Species References
Ecosystem/Community Stresses:Ecosystem Degradation:Decline in habitat quality Commonwealth Conservation Advice on Acacia awestoniana (Stirling Range Wattle) (Threatened Species Scientific Committee, 2008gj) [Conservation Advice].
Ecosystem/Community Stresses:Indirect Ecosystem Effects:Restricted geographical distribution (area of occupancy and extent of occurrence) Acacia awestoniana in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006y) [Internet].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Oryctolagus cuniculus (Rabbit, European Rabbit) Acacia awestoniana in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006y) [Internet].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Avena fatua (Wild Oats) Commonwealth Conservation Advice on Acacia awestoniana (Stirling Range Wattle) (Threatened Species Scientific Committee, 2008gj) [Conservation Advice].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Vegetation and habitat loss caused by dieback Phytophthora cinnamomi Commonwealth Conservation Advice on Acacia awestoniana (Stirling Range Wattle) (Threatened Species Scientific Committee, 2008gj) [Conservation Advice].
Invasive and Other Problematic Species and Genes:Problematic Native Species:plant Commonwealth Conservation Advice on Acacia awestoniana (Stirling Range Wattle) (Threatened Species Scientific Committee, 2008gj) [Conservation Advice].
Natural System Modifications:Fire and Fire Suppression:Inappropriate and/or changed fire regimes (frequency, timing, intensity) Commonwealth Conservation Advice on Acacia awestoniana (Stirling Range Wattle) (Threatened Species Scientific Committee, 2008gj) [Conservation Advice].
Species Stresses:Indirect Species Effects:Low numbers of individuals Acacia awestoniana in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006y) [Internet].

Briggs, J.D. & J.H. Leigh (1996). Rare or Threatened Australian Plants - Revised Edition. Collingwood: CSIRO Publishing.

Brown, A., C. Thomson-Dans & N. Marchant, eds. (1998). Western Australia's Threatened Flora. Como, Western Australia: Department of Conservation and Land Management.

Cowan, R.S. & Maslin, B.R. (1990). Acacia miscellany 1. Some oligoneurous species of Acacia (Leguminosae: Mimosoideae: Section Plurinerves) from Western Australia). Nuytsia. 7(2):183-199.

Orchard, A.E. & A.J.G. Wilson, eds. (2001a). Flora of Australia, Volume 11B, Mimosaceae, Acacia Part 2. In: Flora of Australia. Canberra, ACT: ABRS & CSIRO.

Paczkowska, G. & A.R. Chapman (2000). The Western Australian Flora, A Descriptive Catalogue. The Wildflower Society of Western Australia (Inc.), the Western Australian Herbarium, Department of Conservation and Land Management and the Botanic Gardens & Parks Authority.

Robinson, C.J. & D.J. Coates (1995). Declared Rare & Poorly Known Flora in the Albany District. Western Australian wildlife management program no. 20. [Online]. Como, Western Australia: Australian Nature Conservation Agency, Department of Conservation and Land Management. Available from: http://www.dpaw.wa.gov.au/plants-and-animals/threatened-species-and-communities/threatened-plants.

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This database is designed to provide statutory, biological and ecological information on species and ecological communities, migratory species, marine species, and species and species products subject to international trade and commercial use protected under the Environment Protection and Biodiversity Conservation Act 1999 (the EPBC Act). It has been compiled from a range of sources including listing advice, recovery plans, published literature and individual experts. While reasonable efforts have been made to ensure the accuracy of the information, no guarantee is given, nor responsibility taken, by the Commonwealth for its accuracy, currency or completeness. The Commonwealth does not accept any responsibility for any loss or damage that may be occasioned directly or indirectly through the use of, or reliance on, the information contained in this database. The information contained in this database does not necessarily represent the views of the Commonwealth. This database is not intended to be a complete source of information on the matters it deals with. Individuals and organisations should consider all the available information, including that available from other sources, in deciding whether there is a need to make a referral or apply for a permit or exemption under the EPBC Act.

Citation: Department of the Environment (2014). Acacia awestoniana in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Fri, 25 Jul 2014 06:51:54 +1000.