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
Recovery Plan Decision Recovery Plan required, included on the Commenced List (1/11/2009).
 
Adopted/Made Recovery Plans Wundowlin Wattle (Acacia sciophanes) Recovery Plan (Western Australia Department of Environment and Conservation (WA DEC), 2009c) [Recovery 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 Listing Status
WA: Listed as Critically Endangered (Wildlife Conservation Act 1950 (Western Australia): September 2013)
Scientific name Acacia sciophanes [17877]
Family Fabaceae:Fabales:Magnoliopsida:Magnoliophyta:Plantae
Species author Maslin
Infraspecies author  
Reference Nuytsia 2: 153, fig. 4 (4 Apr. 1977).
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 Wundowlin Wattle is a diffuse, openly branched, wispy shrub, 1.5-3 m high (Mollemans et al. 1993; Paczkowska & Chapman 2000; Orchard & Wilson 2001a; WA CALM n.d.) with bright golden yellow globular flower heads (Orchard & Wilson 2001a).

This species occurs west of Barbalin in south-western WA (Evans et al. 2000; Orchard & Wilson 2001a). Despite numerous surveys there are currently only two known populations of this species. These grow less than 7 km apart and according to Evans et al. 2000 consist of around 806 adult plants. There are records of a possible third population south of Mukinbudin, containing two adult plants but this could not be located in a 1999 survey (Evans et al. 2000). The species may previously have been more widespread, however, the specific soil type has been largely cleared for agriculture (Evans et al. 2000).

This species is conserved in Wundowlin NR (Briggs & Leigh 1996).

Population details as in Evans et al. (2000):

Population [as numbered by
WA CALM]
LocationLand StatusYear of survey -
number of plants
Condition
1aW of BarbalinRailway Reserve2000 - 98Moderate
1bW of BarbalinMRWA Road Reserve1994 - 3(3)Moderate
1cW of BarbalinNature Reserve1999 - 402Healthy
1dW of BarbalinShire Road Reserve2000 - 123Moderate
2aW of BarbalinWater Reserve1999 - *115Disturbed and modified
2bW of BarbalinPrivate Property1999 - 65Moderate
2cW of BarbalinPrivate Property1999 - *115Moderate

Note: * total for both subpopulations combined. Numbers in brackets refers to number of seedlings.

Buist et al. 2002 gave lower population numbers, stating that the first population (in a nature reserve) had a total of 221 plants and that the other (on private property) was 114 plants.

This species grows in yellow sand over granite (Maslin 1977; Fitzgerald 1994 in Evans et al. 2000).

It occurs in floristically diverse low woodland and scrub heath communities where it is associated with Acacia longispinea, A. resomarginea, A. signata and Allocasuarina acutivalvis (Maslin 1977; Buist et al. 2002).

Flowers are borne Feb.-Dec. (peak from March to May) (Evans et al. 2000).

The biology of this species is poorly known. However, field observations suggest that it is likely to require disturbance (such as fire) to germinate soil-stored seed. This is evidenced by its occurrence in disturbed sites along, railway lines, road reserves and firebreaks. While the site remains unburnt, the population will continue to decline as older plant senesce (Evans et al. 2000).

It is thought that the species is insect pollinated, as are most other Acacia species (Rye 1980 in Evans et al. 2000) but there are currently no supportive field observations. Pollination is never the less quite successful with plants producing prolific fruit and seed. Unfortunately, very few seedlings have been observed which indicates that the factor limiting regeneration is occurring after seed set (i.e. lack of suitable fire events) (Evans et al. 2000).

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 Wundowlin Wattle (Acacia sciophanes) Recovery Plan (Western Australia Department of Environment and Conservation (WA DEC), 2009c) [Recovery Plan].
Ecosystem/Community Stresses:Indirect Ecosystem Effects:Restricted geographical distribution (area of occupancy and extent of occurrence) Acacia sciophanes in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006ac) [Internet].
Energy Production and Mining:Mining and Quarrying:Habitat destruction, disturbance and/or modification due to mining activities Acacia sciophanes in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006ac) [Internet].
Energy Production and Mining:Mining and Quarrying:Habitat modification through open cut mining/quarrying activities Wundowlin Wattle (Acacia sciophanes) Recovery Plan (Western Australia Department of Environment and Conservation (WA DEC), 2009c) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Oryctolagus cuniculus (Rabbit, European Rabbit) Wundowlin Wattle (Acacia sciophanes) Recovery Plan (Western Australia Department of Environment and Conservation (WA DEC), 2009c) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation by weeds Wundowlin Wattle (Acacia sciophanes) Recovery Plan (Western Australia Department of Environment and Conservation (WA DEC), 2009c) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Problematic Native Species:Competition, predation and/or habitat degradation by kangaroos and wallabies Wundowlin Wattle (Acacia sciophanes) Recovery Plan (Western Australia Department of Environment and Conservation (WA DEC), 2009c) [Recovery Plan].
Natural System Modifications:Fire and Fire Suppression:Habitat degradation caused by firebreak construction and/or maintenance Wundowlin Wattle (Acacia sciophanes) Recovery Plan (Western Australia Department of Environment and Conservation (WA DEC), 2009c) [Recovery Plan].
Natural System Modifications:Fire and Fire Suppression:Inappropriate and/or changed fire regimes (frequency, timing, intensity) Acacia sciophanes in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006ac) [Internet].
Wundowlin Wattle (Acacia sciophanes) Recovery Plan (Western Australia Department of Environment and Conservation (WA DEC), 2009c) [Recovery Plan].
Species Stresses:Indirect Species Effects:Low fecundity, reproductive rate and/or poor recruitment Acacia sciophanes in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006ac) [Internet].
Species Stresses:Indirect Species Effects:Poor recruitment (regeneration) and declining population numbers Wundowlin Wattle (Acacia sciophanes) Recovery Plan (Western Australia Department of Environment and Conservation (WA DEC), 2009c) [Recovery Plan].
Transportation and Service Corridors:Roads and Railroads:Development and/or maintenance of roads Wundowlin Wattle (Acacia sciophanes) Recovery Plan (Western Australia Department of Environment and Conservation (WA DEC), 2009c) [Recovery Plan].
Transportation and Service Corridors:Transportation and Service Corridors:Road and rail maintenance works Acacia sciophanes in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006ac) [Internet].

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

Buist, M.L., D.J. Coates & C.J. Yates (2002). Rarity and threat in relation to the conservation of Acacia in Western Australia. Kathryn Lee, ed. Conservation Science Western Australia. 4 (3):36-51. Dept of Conservation and Land Management, WA.

Evans, R., R. Phillimore & A. Brown (2000). Wundowlin Wattle (Acacia sciophanes) Interim Recovery Plan 2000-2003. WA CALM.

Maslin, B.R. (1977). Studies in the genus Acacia (Mimosaceae) - 6 - Miscellany. Nuytsia. 2(3).

Mollemans, F.H., P.H. Brown & D.J. Coates (1993). Declared rare flora and other plants in need of special protection in the Merredin District (excluding the Wongan-Ballidu Shire). Western Australia Department of Conservation and Land Management.

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

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.

WA CALM (n.d.). Endangered Flora of WA, Wundowlin Wattle. CALM, NHT. CALM, NHT.

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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 sciophanes in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Fri, 18 Apr 2014 19:22:11 +1000.