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, this species had a recovery plan in force at the time the legislation provided for the Minister to decide whether or not to have a recovery plan (19/2/2007).
 
Adopted/Made Recovery Plans Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [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 Government
    Documents and Websites
NSW:Review of the Threatened Species Conservation Act Flora Schedules: Recommendations to the Scientific Committee: Final Summary Report December 2002 (Hogbin, P., 2002) [Report].
NSW:Nielsen Park She-oak - profile (NSW Office of Environment and Heritage (NSW OEH), 2012w) [Internet].
State Listing Status
NSW: Listed as Endangered (Threatened Species Conservation Act 1995 (New South Wales): December 2013 list)
Scientific name Allocasuarina portuensis [21937]
Family Casuarinaceae:Casuarinales:Magnoliopsida:Magnoliophyta:Plantae
Species author L.A.S.Johnson
Infraspecies author  
Reference Wilson, K.L. & Johnson, L.A.S. in George, A.S. (Ed) (1989), Flora of Australia 3: 198 (152; Fig. 55, Map 148) [tax. nov.]
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

A slender, sometimes straggling shrub up to 5 m high, with smooth bark and drooping or spreading branchlets (Woodford 2001; Wilson & Johnson 1989).

This species has only been recorded from Nielsen Park, within Sydney Harbour NP, NSW (Briggs & Leigh 1996), where it was discovered in 1986 (NSW NPWS 2000i). Originally known from a single population of 10 individuals (Wilson & Johnson 1989), the natural occurrence of the species had declined to a single female plant by June 2001 (Woodford 2001).

This species is similar to A. rigida (Harden 2000). A. littoralis and A. distyla occur in the same habitat (NSW NPWS 2000i).

The only site where the species occurs naturally is on the slope of a sandstone headland (Harden 2000). The shallow sandy soils are highly siliceous, coarsely textured and devoid of a soil profile (Matthes & Nash 1994). The climate is generally warm and wet in summer and autumn, with winter to spring cool and drier (NSW NPWS 2000i).

The species grows in tall shrubland dominated by Ficus rubiginosa, Angophora costata and Glochidion ferdinandi with a shrub layer of Pittosporum revolutum, Kunzea ambigua and Monotoca elliptica (Harden 2000; NSW NPWS 2000i).

The species is generally dioecious but some cultivated plants have both male and female flowers. Flowering is mainly Apr.-Aug., although there is a small reproductive effort throughout the year. The species is probably wind-pollinated with reproductive success dependent on pollen availability. The seed appears to have high viability (NSW NPWS 2000i).

Plants of the family Casuarinaceae are generally obligate seed regenerators. Most species are killed by fire, although some species can re-sprout. The wild population of A. portuensis showed no obvious clonal growth, but one of the cultivated plants is multi-stemmed arising from one base, possibly indicating clonality. The estimated life span of individuals is 30 years (NSW NPWS 2000i).

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 Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Ecosystem/Community Stresses:Indirect Ecosystem Effects:Restricted geographical distribution (area of occupancy and extent of occurrence) Allocasuarina portuensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006bj) [Internet].
Human Intrusions and Disturbance:Recreational Activities:Disturbance, especially from human recreational activities and development Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Anredera cordifolia (Madeira Vine, Jalap, Lamb's-tail, Mignonette Vine, Anredera, Gulf Madeiravine, Heartleaf Madeiravine, Potato Vine) Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Acetosa sagittata (Rambling Dock, Turkey Rhubarb, Arrow Dock, Arrowhead Vine, Climbing Dock, Red Sorrel, Red Sorrow, Arrowhead Vine, Potato Vine) Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Protasparagus densiflorus (Asparagus Fern, Sprengeri Fern) Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Delairea odorata (Cape Ivy, German Ivy, Parlor Ivy, Italian Ivy, Ivy Groundsel Mile-a-minute) Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Tradescantia albiflora (Wandering Jew, Wandering Trad, Trad, Creeping Christian, Wandering Tradescantia, Water Spiderwort, Wandering Willie, Wandering Creeper) Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Lantana camara (Lantana, Common Lantana, Kamara Lantana, Large-leaf Lantana, Pink Flowered Lantana, Red Flowered Lantana, Red-Flowered Sage, White Sage, Wild Sage) Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation by weeds Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Invasive and Other Problematic Species and Genes:Problematic Native Species:Competition, predation and/or habitat degradation by insects Allocasuarina portuensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006bj) [Internet].
Invasive and Other Problematic Species and Genes:Problematic Native Species:Psittacine Circoviral Disease Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Natural System Modifications:Fire and Fire Suppression:Inappropriate and/or changed fire regimes (frequency, timing, intensity) Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Pollution:Garbage and Solid Waste:Dumping of household and industrial waste Allocasuarina portuensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006bj) [Internet].
Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Pollution:Pollution:Pollution run-off Allocasuarina portuensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006bj) [Internet].
Residential and Commercial Development:Housing and Urban Areas:Habitat loss, modification and fragmentation due to urban development Allocasuarina portuensis Recovery plan 2000-2010 (NSW National Parks & Wildlife Service, 2000i) [Recovery Plan].
Residential and Commercial Development:Residential and Commercial Development:Habitat modification (clearance and degradation) due to urban development Allocasuarina portuensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006bj) [Internet].
Species Stresses:Indirect Species Effects:Low numbers of individuals Allocasuarina portuensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006bj) [Internet].

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

Council of Heads of Australian Botanic Gardens (CHABG) (1994). Census of plants in botanic gardens. [Online]. Canberra: Australian National Botanic Gardens. Available from: http://www.anbg.gov.au/chabg/census/census.html.

Harden, G.J. (ed.) (2000). Flora of New South Wales, Volume One. Kensington, NSW: University of NSW Press.

Matthes, M & Nash S. (1994). Conservation Research Statement and Recovery Plan for Allocasuarina portuensis L. Johnson. Hurstville: NSW NPWS.

NSW National Parks & Wildlife Service (2000i). Allocasuarina portuensis Recovery plan 2000-2010. [Online]. NSW NPWS. Available from: http://www.environment.gov.au/biodiversity/threatened/publications/recovery/a-portuensis/index.html.

Wilson, K.L. & L.A.S.Johnson (1989). Casuarinaceae. In: Flora of Australia. 3:100-174. Canberra: AGPS.

Woodford, J. (2001). Ssssshhhhhh, the scraggly she-oaks are on their last chance. Sydney Morning Herald. Sydney Morning Herald, Sydney.

Woodford, J. (2003). Forgotten tree is safe for now. Sydney Morning Herald. 14/5/2003. Sydney Morning Herald, Sydney.

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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). Allocasuarina portuensis in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Tue, 16 Sep 2014 17:53:14 +1000.