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 Endangered
Listing and Conservation Advices Commonwealth Conservation Advice for Acacia cretacea (Chalky Wattle) (Threatened Species Scientific Committee (TSSC), 2013fx) [Conservation Advice].
 
Recovery Plan Decision Recovery Plan required, included on the Commenced List (1/11/2009).
 
Adopted/Made Recovery Plans
Other EPBC Act Plans Threat abatement plan for competition and land degradation by rabbits (Department of the Environment, Water, Heritage and the Arts (DEWHA), 2008adh) [Threat Abatement Plan].
 
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
SA:Draft recovery plan for 23 threatened flora taxa on Eyre Peninsula, South Australia 2007-2012 (Pobke, K., 2007) [State Recovery Plan].
State Listing Status
SA: Listed as Endangered (National Parks and Wildlife Act 1972 (South Australia): June 2011 list)
Scientific name Acacia cretacea [10689]
Family Fabaceae:Fabales:Magnoliopsida:Magnoliophyta:Plantae
Species author Maslin & Whibley
Infraspecies author  
Reference Nuytsia 6 (23 Dec. 1987) 27, fig. 3.
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 Chalky Wattle is a spindly, straggly, single-stemmed shrub or tree, growing 4-5 m high with lemon yellow to golden yellow, very fragrant flower heads (Maslin & Whibley 1987; Whibley & Symon 1992; Orchard & Wilson 2001).

The species occurs in an extremely restricted area about 30 km north to north-west of Cowell and north-east of Coolanie on the north-eastern Eyre Peninsula, SA (Maslin & Whibley 1987; Jusaitis 1991; Whibley & Symon 1992; Jusaitis & Sorensen 1994; Orchard & Wilson 2001). It grows over an area of 3-4 x 2 km (Maslin & Whibley 1987; Jusaitis & Sorensen 1994).

The total population consists of between a few hundred (Maslin & Whibley 1987) and 5 000 plants (Jusaitis & Sorensen 1994).

The species is found along roadsides and in adjacent leasehold farming land (Maslin & Whibley 1987; Jusaitis 1991; Jusaitis & Sorensen 1994).

The species occurs in low shrubland and mallee scrub, on deep red sand in gently undulating country, with low sand ridges (Briggs J. D., pers. comm. in Maslin & Whibley 1987; Jusaitis 1991; Whibley & Symon 1992; Orchard & Wilson 2001).

Associated species include Eucalyptus incrassata, Melaleuca uncinata, Triodia irritans, Phebalium bullatum (Briggs J. D., pers. comm. in Maslin & Whibley 1987; Whibley & Symon 1992).

More detailed habitat information is known for three sites at which photo-points were established (Jusaitis & Sorensen 1994):

Landform typeAspectTopsoilSoil pHVegetation StateVegetation
Dune, slopeS, exposedSand5.9Undisturbed naturalOn verge of native scrub and cleared paddock. Low open woodland: Eucalyptus incrassata over Acacia rigens, Dodonaea viscosa var. angustissima, Davesia ilicifloia, Triodia irritans, Olearia lepidophylla, Phebalium bullatum over Helichrysum apiculatum
SlopeW, exposedSand5.8RoadsideOpen mallee: E. anceps over T. irritans, Eremophila crassifolia over Senecio sp. and Lomandra sp.
Dune, slopeS, exposedSand5.9UndisturbedOn verge of native scrub and cleared paddock. Low open woodland: E. incrassata over T. irritans, D. ilicifolia, P. bullatum, A. rigens and O. lepidophylla

Flowers are borne July-Feb. (Maslin & Whibley 1987; Whibley & Symon 1992; Jusaitis & Sorensen 1994; Orchard & Wilson 2001). Mature fruit have been collected in Jan., Feb. and July to Nov. (Maslin & Whibley 1987; Whibley & Symon 1992; Jusaitis & Sorensen 1994)

No pollinators were observed. Some sub-populations contain as few as three plants, and are reproductively isolated (Jusaitis & Sorensen 1994).

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
Agriculture and Aquaculture:Livestock Farming and Grazing:Grazing pressures and associated habitat changes Acacia cretacea in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006e) [Internet].
Ecosystem/Community Stresses:Indirect Ecosystem Effects:Restricted geographical distribution (area of occupancy and extent of occurrence) Acacia cretacea in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006e) [Internet].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Oryctolagus cuniculus (Rabbit, European Rabbit) Recovery Plans: Prostanthera eurybioides, Pterostylis arenicola, Acacia cretacea, Pultenaea trichophylla (Jusaitis, M., 1991) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive and Other Problematic Species and Genes:Predation, competition, habitat degradation and/or spread of pathogens by introduced species Species threats data recorded on the SPRAT database between 1999-2002 (Department of Sustainability, Environment, Water, Population and Communities (DSEWPaC), 2012i) [Database].
Invasive and Other Problematic Species and Genes:Problematic Native Species:Competition, predation and/or habitat degradation by insects Acacia cretacea in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006e) [Internet].
Invasive and Other Problematic Species and Genes:Problematic Native Species:Competition, predation and/or habitat degradation by kangaroos and wallabies Species threats data recorded on the SPRAT database between 1999-2002 (Department of Sustainability, Environment, Water, Population and Communities (DSEWPaC), 2012i) [Database].
Acacia cretacea in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006e) [Internet].
Invasive and Other Problematic Species and Genes:Problematic Native Species:Presence of pathogens and resultant disease Acacia cretacea in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006e) [Internet].

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

Jusaitis, M. (1991). Recovery Plans: Prostanthera eurybioides, Pterostylis arenicola, Acacia cretacea, Pultenaea trichophylla. Adelaide, South Australia: Blackhill Flora Centre.

Jusaitis, M. & B. Sorensen (1994). Conservation Studies on Endangered Plant Species from South Australia's Agricultural Regions. Adelaide, South Australia: Black Hill Flora Centre.

Maslin, B. R. & D.J.E. Whibley (1987). The taxonomy of some South Australian Acacia section Phyllodineae species (Leguminosae: Mimosoideae). Nuytsia. 6(1):19-32.

Orchard, A.E. & A.J.G. Wilson (eds) (2001). Flora of Australia, Volume 11A, Mimosaceae, Acacia Part 1.

Vallee, L., T. Hogbin, L. Monks, B. Makinson, M. Matthes & M. Rossetto (2004). Guidelines for the translocation of threatened plants in Australia - Second Edition. Canberra, ACT: Australian Network for Plant Conservation.

Whibley, D.J.E. & D.E. Symon (1992). Acacias of South Australia. Adelaide, South Australia: Flora and Fauna of South Australia Handbook Committee.

EPBC Act email updates can be received via the Communities for Communities newsletter and the EPBC Act newsletter.

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 cretacea in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Mon, 22 Sep 2014 15:41:56 +1000.