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|
|Recovery Plan Decision||
Recovery Plan required, included on the Commenced List (1/11/2009).
|Adopted/Made Recovery Plans|
Federal Register of
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].
Documents and Websites
|State Listing Status||
|Scientific name||Persoonia bargoensis |
|Species author||P.H.Weston & L.A.S.Johnson|
|Reference||Telopea 4(2): 284 (1991).|
This is an indicative distribution map of the present distribution of the species based on best available knowledge. See map caveat for more information.
Scientific name: Persoonia bargoensis
Common name: Bargo Geebung
The Bargo Geebung is an erect, bushy shrub growing to 0.6–2.5 m in height. It has slender branches with a light covering of hairs on the new growth. The small, thin leaves have a lighter green lower surface. Its yellow tubular flowers appear mainly in summer and are produced in the angles where leaves join the stem (leaf axils) of new growth. Its fruits are pear-shaped, green, pendulous and grow to 12 mm long (NSW DECCW 2005im).
The Bargo Geebung is restricted to a small area south-west of Sydney on the western edge of the Woronora Plateau and the northern edge of the Southern Highlands (NSW DECCW 2005im). It is restricted to the catchments of the Cataract, Cordeaux and Bargo Rivers of NSW (Blombery & Maloney 1992; Harden 1991; Weston 1995b; Weston & Johnson 1991).
The historical northern, southern, eastern and western limits are Picton and Douglas Park, Yanderra, Cataract River and Thirlmere (NSW DECCW 2005im). Collections have been made at: Ripponden, Appin to Wilton Road, above the Cataract River, Pheasants Nest, Nepean River, Tahmoor to Bargo (Weston & Johnson 1991).
The Bargo Geebung populations are very small (often less than eight plants) and scattered, with the total population likely to be less than 250 (in 1999) (NSW DECCW 2000e).
The Bargo Geebung grows in dry sclerophyll eucalypt woodland or forest. It occurs on the heavier, well drained, loamy, gravelly soils of Hawkesbury Sandstone and Wianamatta Shale, between 100 and 300 m altitude (Blombery & Maloney 1992; Harden 1991). Specifically, it seems to prefer the interfaces between shale-derived, soils such as the Blacktown Soil Landscape, and the underlying sandstone (Hawkesbury and Gymea Soil Landscapes) (NSW NPWS 2000ad).
The Bargo Geebung flowers from December to January (Weston 1995b; Weston & Johnson 1991). The fruits hang on the plant for an indefinite period (Blombery & Maloney 1992).
Plants are likely to be killed by fire and requires a minimum fire frequency of 10–15 years to allow for seed set (NSW DECCW 2000e). Recruitment is solely from seed. Like most geebungs this species seems to benefit from the reduced competition and increased light available on disturbance margins including roadsides (NSW DECCW 2005im).
The Bargo Geebung is best surveyed during flowering in summer and autumn, and can be very difficult to detect when not in flower or during the later stages of fruiting (NSW NPWS 2000ae). The species tends to occur along fire trails or the margins of disturbed areas (NSW NPWS 2000ae). Sites that are long undisturbed may have few or no plants (NSW NPWS 2000ae).
The Bargo Geebung superficially resembles Persoonia nutans of western Sydney (NSW NPWS 2000ad), but the latter mostly has lanceolate to linear-lanceolate leaves whereas the former has linear-oblong leaves (PlantNet 2012).
The Bargo Geebung is threatened by (NSW DECCW 2005im):
- Loss of habitat through clearing for urban and peri-urban development.
- Increased fire frequency via burning for hazard reduction and other unnatural ignitions.
- Damage from slashing for fire hazard reduction purposes.
- Habitat disturbance during road maintenance.
- Subsidence associated with underground coal extraction.
- Inbreeding depression due to very small populations.
- The European Honey Bee (Apis mellifera), which may be a factor in the rarity of Bargo Geebung and several other geebungs. This is because although European Honey Bees are able to collect pollen, its method of pollen transport makes effective pollination of geebungs unlikely.
- Infection by Cinnamon Fungus (Phytophthora cinnamomi), which is fatal to many Persoonia spp..
Recovery activities relevant to the Bargo Geebung include (NSW DECCW 2005im):
- Ensure that personnel involved in planning and undertaking hazard reduction burns, are able to identify the species and are aware of its habitat.
- Following burning, protect populations (where possible) from further fires until plants have reached reproductive maturity.
- Erect on-site markers to alert maintenance staff and road-users to the presence of this species.
- Protect known habitat areas from clearing and disturbance.
- Monitor populations for the impact of European Honey Bees and Cinnamon Fungus.
- Mark Bargo Geebung sites and potential habitat onto maps used for planning road maintenance work.
- Protect many populations rather than concentrating all efforts on one or two populations. Conduct further surveys in an effort to locate more individuals.
Wirrimbirra Sanctuary Landcare Group (NSW) received $4910 of funding through the Threatened Species Network Community Grants in 2000-01 for the propagation of this species and the planting of germinated seeds into degraded forest areas undergoing restoration.
Management documents relevant to Persoonia bargoensis are at the start of the profile. Other relevant documents include the Persoonia bargoensis draft Recovery Plan (NSW DEC 2007b).
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:Indirect Ecosystem Effects:Restricted geographical distribution (area of occupancy and extent of occurrence)||Persoonia bargoensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006qo) [Internet].|
|Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation||Apis mellifera (Honey Bee, Apiary Bee)||The threat posed by pest animals to biodiversity in New South Wales (Coutts-Smith, A.J., P.S. Mahon, M. Letnic & P.O. Downey, 2007) [Management Plan].|
|Uncategorised:Uncategorised:threats not specified||Persoonia bargoensis in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006qo) [Internet].|
Blombery, A.M. & B. Maloney (1992). The Proteaceae of the Sydney Region. Kenthurst, NSW: Kangaroo Press.
Harden, G.J. (ed.) (1991). Flora of New South Wales, Volume Two. Kensington, NSW: University of NSW Press.
NSW Department of Environment and Conservation (NSW DEC) (2007b). Draft NSW & National Persoonia bargoensis (Bargo Geebung).
NSW Department of Environment, Climate Change and Water (NSW DECCW) (2000e). Persoonia bargoensis (a shrub) - endangered species listing. NSW Scientific Committee - final determination. [Online]. Available from: http://www.environment.nsw.gov.au/determinations/PersooniaBargoensisEndSpListing.htm.
NSW Department of Environment, Climate Change and Water (NSW DECCW) (2005im). Bargo Geebung - profile. [Online]. Available from: http://www.threatenedspecies.environment.nsw.gov.au/tsprofile/profile.aspx?id=10592.
NSW National Parks and Wildlife Service (NSW NPWS) (2000ad). Persoonia bargoensis Threatened Species Information. [Online]. Available from: http://www.environment.nsw.gov.au/resources/nature/TSprofilePersooniaBargoensis.pdf.
NSW National Parks and Wildlife Service (NSW NPWS) (2000ae). Environmental Impact Assessment Guidelines - Persoonia bargoensis. [Online]. Available from: http://www.environment.nsw.gov.au/resources/nature/PbargoensisEia0500.pdf.
PlantNET (2012). The Plant Information Network System. [Online]. Sydney, Australia: The Royal Botanic Gardens and Domain Trust. Available from: http://plantnet.rbgsyd.nsw.gov.au.
Weston, P.H. (1995b). Subfam. 1. Persoonioideae. In: Flora of Australia. 16:47-125. Melbourne, Victoria: CSIRO.
Weston, P.H. & L.A.S. Johnson (1991). Taxonomic changes in Persoonia (Proteaceae) in New South Wales. Telopea. 4(2):269-306.
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). Persoonia bargoensis in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Fri, 25 Apr 2014 14:13:09 +1000.