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 menzelii (Menzel's Wattle) (Threatened Species Scientific Committee, 2008gz) [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
SA:South Australian Murray Darling Basin Threatened Flora Recovery Plan (Obst, C., 2005) [Report].
State Listing Status
SA: Listed as Vulnerable (National Parks and Wildlife Act 1972 (South Australia): June 2011)
Scientific name Acacia menzelii [9218]
Family Fabaceae:Fabales:Magnoliopsida:Magnoliophyta:Plantae
Species author J.Black
Infraspecies author  
Reference Transactions and Proceedings of the Royal Society of South Australia 41 (24 Dec. 1917) 45, t. XI.
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.

Other illustrations Google Images

Menzel's Wattle is a resinous, compact, rounded, erect shrub to 2 m high (Orchard & Wilson 2001a) with minute yellow globular flowerheads (Leigh et al. 1984; Cunningham et al. 1992; Orchard & Wilson 2001a).

This species is endemic to SA (Whibley & Symon 1992), confined to localised areas of the Murray Mallee (around Monarto and Murray Bridge), Lofty Ranges and Flinders Ranges (around Brachina) (Leigh et al. 1984; Jessop & Toelken 1986; Davies 1992). It is distributed discontinuously from Mt Hack, Northern Flinders Ranges, S to Murray Bridge (Orchard & Wilson 2001a). The species is best known in the area surrounding Monarto South in the eastern foothills of the Mt Lofty Ranges. The Northern Flinders Ranges populations are considered relicts (Davies 1995a).

In the Murray Mallee and Lofty Ranges regions this species has been collected from an area bounded by Murray Bridge, Mannum, Harrogate, Kanmantoo and the SE Freeway (Davies 1992). The largest population in that area is believed to occur along the upper slopes of Kinchena Gorge, about 10 km E of Monarto South (Whibley pers. comm. in Leigh et al. 1984). One population is located near Rockleigh, about 20 km N of Monarto South (Spooner pers. comm. in Leigh et al. 1984).

In 1992, Davies reported twelve populations in the Murray Mallee region, nine unconserved and three conserved in Heritage Agreement Areas. The nine unconserved populations contained a total of 770 plants. Five of these populations each contained twelve or fewer plants. Three of these small populations were confined to road reserves. The three conserved populations contained 8, 1 and 2 individuals. These populations had no seedlings present, possibly due to moderate to heavy exotic grass invasion. Six other populations had been previously recorded in the Monarto area, including one in 'Frahn Pascoe Scrub' and another at 'Narinyerri Hills' (Davies 1992).

Two populations also occur in the northern Flinders Ranges (Davies 1992, 1995a). One locality is E of Brachina (two collections, one from 1961 '16 km E of Brachina' and another 'Brachina Gorge, 10 km E of Brachina Railway Station') (Davies 1992, 1995a). A more recently discovered population is on Warraweena Pastoral Lease, on a high saddle of Sliding Rock Pound, at the eastern end of the Mt Hack Range. In 1993/94 this population contained about 200 individuals over an area of 8 ha. It had a healthy age structure including seedlings and only a few senescing (aging) plants (Davies 1995a). The herbarium collection labelled '16 km E of Brachina' is possibly from Flinders Ranges NP (Davies 1992; Briggs & Leigh 1996).

This species is very similar to Acacia wilhelmiana (Leigh et al. 1984).

This species grows in calcareous loamy earths (Orchard & Wilson 2001a), where the average annual rainfall is 350-400 mm (Whibley & Symon 1992). It occurs as scattered shrubs; either on roadsides, or in low open shrubby woodland on more rocky sites which have only been partly cleared (J.D.Briggs pers. comm. in Leigh et al. 1984). It is found in open Eucalyptus scrub (Orchard & Wilson 2001a) where associated species include Eucalyptus socialis, E. incrassata, Callitris preisii and E. odorata (Leigh et al. 1984; Whibley & Symon 1992).

In the Murray Mallee and Lofty Ranges regions the species grows on the gentle slopes of undulating plains and low rolling hills. It frequently occurs amongst rock outcrops such as granite, on all aspects. Soils are various sands and loams of pH 6-9: red, brown and greys in colour. In the Monarto area it occurs in various vegetation associations: (1) Eucalyptus socialis low open woodland and very low woodland, (2) E. dumosa tall sparse shrubland, (3) E. porosa low woodland, very low woodland and open woodland, (4) E. odorata low woodland and low open woodland, (5) Callitris preissii open woodland and low open woodland and (6) E. odorata associations with other eucalypts (Davies 1992).

In the Flinders Ranges region the known extant site is on the eastern end of Mt Hack Range, the species grows on a W facing slope of a saddle, at 840-890 m asl. Soil is a reddish brown fine sandy loam of pH 6. The species occurs between sloping terraces and slabs of quartzite. It grows in tall open shrubland dominated by E. odorata. When present the species dominates the shrub stratum. Co-dominant shrubs include Dodonaea viscosa subsp. angustissima, Cassinia laevis and Ozothamnus retusus. The sparse ground stratum is most frequently dominated by Goodenia vernicosa and Chrysocephalum semipapposum. Eutaxia microphylla and Lomandra multiflora subsp. dura occur less frequently (Davies 1995a).

Flowers are mainly borne July-Oct. but can be produced as late as Jan. (Davies 1992).

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:Agriculture and Aquaculture:Land clearing, habitat fragmentation and/or habitat degradation Commonwealth Conservation Advice on Acacia menzelii (Menzel's Wattle) (Threatened Species Scientific Committee, 2008gz) [Conservation Advice].
Agriculture and Aquaculture:Livestock Farming and Grazing:Grazing pressures and associated habitat changes Acacia menzelii in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006am) [Internet].
Regional Recovery Plan for Threatened Species & Ecological Communities of Adelaide and Mount Lofty Ranges 2009-2014 (Willson, A. & J. Bignall, 2009a) [State Recovery Plan].
Ecosystem/Community Stresses:Indirect Ecosystem Effects:Loss and/or fragmentation of habitat and/or subpopulations Commonwealth Conservation Advice on Acacia menzelii (Menzel's Wattle) (Threatened Species Scientific Committee, 2008gz) [Conservation Advice].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Asparagus asparagoides (Bridal Creeper, Bridal Veil Creeper, Smilax, Florist's Smilax, Smilax Asparagus) Commonwealth Conservation Advice on Acacia menzelii (Menzel's Wattle) (Threatened Species Scientific Committee, 2008gz) [Conservation Advice].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation by weeds Acacia menzelii in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006am) [Internet].
Regional Recovery Plan for Threatened Species & Ecological Communities of Adelaide and Mount Lofty Ranges 2009-2014 (Willson, A. & J. Bignall, 2009a) [State Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Grazing, tramping, competition and/or habitat degradation Capra hircus (Goat) Commonwealth Conservation Advice on Acacia menzelii (Menzel's Wattle) (Threatened Species Scientific Committee, 2008gz) [Conservation Advice].
Natural System Modifications:Fire and Fire Suppression:Inappropriate and/or changed fire regimes (frequency, timing, intensity) Commonwealth Conservation Advice on Acacia menzelii (Menzel's Wattle) (Threatened Species Scientific Committee, 2008gz) [Conservation Advice].
Regional Recovery Plan for Threatened Species & Ecological Communities of Adelaide and Mount Lofty Ranges 2009-2014 (Willson, A. & J. Bignall, 2009a) [State Recovery Plan].
Species Stresses:Indirect Species Effects:Poor recruitment (regeneration) and declining population numbers Commonwealth Conservation Advice on Acacia menzelii (Menzel's Wattle) (Threatened Species Scientific Committee, 2008gz) [Conservation Advice].
Transportation and Service Corridors:Roads and Railroads:Development and/or maintenance of roads Commonwealth Conservation Advice on Acacia menzelii (Menzel's Wattle) (Threatened Species Scientific Committee, 2008gz) [Conservation Advice].
Regional Recovery Plan for Threatened Species & Ecological Communities of Adelaide and Mount Lofty Ranges 2009-2014 (Willson, A. & J. Bignall, 2009a) [State Recovery Plan].

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

Cunningham, G.M., W.E. Mulham, P.L. Milthorpe & J.H. Leigh (1981). Plants of Western New South Wales. NSW Govt. Printing Office.

Cunningham, G.M., W.E. Mulham, P.L. Milthorpe & J.H. Leigh (1992). Plants of Western New South Wales. Melbourne: Inkata Press.

Davies, R.J.P. (1992). Threatened Plants of the Murray Mallee, Mt Lofty Range and Kangaroo Island Region of South Australia. Conservation Council of South Australia.

Davies, R.J.P. (1995a). Threatened Plant Species Management in the Arid Pastoral Zone of South Australia. Pastoral Management Branch, Department of Environment and Natural Resources.

Jessop, J.P. & H.R. Toelken, eds. (1986). Flora of South Australia. Adelaide, South Australia: SA Government Printing Division.

Leigh, J., R. Boden & J. Briggs (1984). Extinct and Endangered Plants of Australia. Melbourne, Victoria: Macmillan.

Meredith, L.D. & M.M. Richardson (1990). Rare or Threatened Australian Plant Species in Cultivation in Australia. Report Series No. 15. Page(s) 1-114. Canberra: Australian National Parks and Wildlife Service.

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.

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

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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 menzelii in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Fri, 18 Apr 2014 11:35:03 +1000.