Threatened species & ecological communities

National recovery plan for Twenty-five threatened orchid taxa of Victoria, South Australia and New South Wales 2003 - 2007

Coates, F., Jeanes, J. and Pritchard, A.
Department of Sustainability and Environment, Melbourne, 2002

Appendix 3

Prasophyllum sp. aff. frenchii 2
Maroon Leek-orchid

Conservation status:
EPBC Act 1999: E
IUCN (2000): E (preliminary assessment)
NRE (2000): Not listed
Distribution:
Endemic to Victoria - widespread across south-eastern Victoria between Clyde and Mallacoota. Existing records and current understanding of its taxonomy indicate that P. frenchii was formerly more widespread south-east of Melbourne in the Officer and Bairnsdale areas to Mallacoota in far East Gippsland.
Many records attributed to this species are incorrect determinations of similar taxa. Specific details of population localities (including GPS data) are held on DSE internal files.
Present range and former range
Abundance:
Approximately 250-750 plants known in the wild, in 5 main populations. Likely to have formerly numbered many thousands of plants in grasslands, grassy woodlands and heathlands in Gippsland and south-eastern Victoria, but now likely to be extinct east of Wilsons Promontory.
Habitat:
Occurs in grassland or grassy woodland. Some sites were managed by frequent fire up until the late 1970s but are now generally degraded. Soils are sandy, or black clay loams, generally damp, but well drained, although some sites are seasonally waterlogged. Critical habitat has not been determined, but likely to require open conditions to promote flowering and recruitment, and adequate soil moisture.
Reservation status:
Reserved at Wilsons Promontory National Park (Vic).
Management:
Parks Victoria (Victoria East Region: Tidal River, Sale); DSE-BNR PP: Box Hill, DSE-BNR SE: Yarram); Freight Australia; Parkside Airfield Committee.
Current and potential threats and their risk:
Current threats Perceived risk
Weed invasion High - Clyde (Watsonia, Blackberry).
Grazing/pest animals Extremely high at WPNP - kangaroos, emus, wombats, hog deer and rabbits are abundant;Moderate at Golden Beach - kangaroos and rabbits;Low at other sites.
Inappropriate fire regimes High at WPNP - site is long unburnt and habitat is severely degraded.Low at Golden Beach, Parkside Aerodrome - sites are regularly burnt.Moderate at Clyde - burning is irregular and site currently requires fire.
Site disturbance Generally low at present.
Reservation status Inadequately reserved.
Potential threats Perceived risk
Herbicide spraying and site disturbance High at Clyde -herbicides have been used in the past along the rail line; damage from heavy machinery and vehicles during works is possible.Low at other sites.
Illegal collection Low - no evidence of collection in the past.
Woody shrub invasion Low at Golden Beach -invasion of coastal shrubs in the absence of fire or grazing.

Recovery objectives:

Maintain and/or increase existing population sizes; protect and manage habitat.

Recovery actions undertaken:

Issues specific to recovery:

Overall recovery strategy:

Risk management will include negotiated agreements with management authorities and landowners to protect populations from grazing and accidental damage where required, and implement appropriate fire regimes at all sites to promote flowering and recruitment, particularly in parks and reserves. Baseline information is urgently required. Seed will be collected and tested for viability and stored for use if required. Recovery will be jointly managed by DSE, PV, EH, and Parkside Airfield Committee. Involvement from volunteers will be encouraged.

Consultation:

Parks Victoria (Victoria East Region: Tidal River, Sale, Bairnsdale); DSE-BNR PP; DSE-BNR SE (Box Hill, Yarram); Parkside Airfield Committee.

Actions
Action Clyde/Packenham (H) Wilsons Promontory NP (L) Golden Beach & Lake Reeve (M) Parkside Aerodrome (H)
1. Determine current conservation status        
1.1 Clarify taxonomy L L L L
1.2 Acquire baseline population data M M M M
Responsibility DSE-BNR, CPCB DSE-BNR, CPCB DSE-BNR, CPCB DSE-BNR, CPCB
2. Investigate population biology        
2.1 Describe life history M M M M
2.2 Evaluate natural pollination levels and/or causes of pollinator limitation M M M M
2.3 Determine the effects of artificial pollination on growth survival and reproduction N/A N/A N/A N/A
2.4 Determine spatial distribution of mycorrhizal fungi N/A N/A N/A N/A
2.5 Determine optimal conditions for growth of mycorrhizal fungi in-situ N/A N/A N/A N/A
Responsibility DSE-BNR DSE-BNR DSE-BNR DSE-BNR
3. Determine habitat requirements of key populations        
3.1 Identify key populations N/A N/A N/A N/A
3.2 Conduct surveys M H M H
3.3 Identify ecological correlates of populations M M M M
3.4 Prepare habitat descriptions L L L L
Responsibility DSE-BNR DSE-BNR DSE-BNR DSE-BNR
4. Manage risks to populations        
4.1 Identify and implement strategies to control threats H H H H
4.2 Identify disturbance regimes to promote regeneration and recruitment Completed Completed Completed Completed
4.3 Protect key public land populations and habitat H H H N/A
4.4 Protect key private land populations and habitat N/A N/A N/A H
Responsibility DSE-BNR PP PV (Tidal River) DSE-BNR SE, PV (Sale) Parkside Airfield Committee,Shire of Wellington
5. Promote in-situ recruitment        
5.1 Prepare habitat for seedling recruitment N/A N/A N/A N/A
5.2 Re-stock populations with seed N/A N/A N/A N/A
Responsibility DSE-BNR DSE-BNR DSE-BNR DSE-BNR
6. Measure population trends and responses against recovery actions        
6.1 Conduct annual censusing of populations M M M M
6.2 Collate, analyse and report on census data M H M M
6.3 Re-prioritise and adjust recovery actions and/or threat management M H M M
Responsibility DSE-BNR PV (Tidal River), DSE-BNR DSE-BNR, PV (Sale) DSE-BNR
7. Increase populations ex-situ        
7.1 Hand pollinate plants N/A N/A N/A N/A
7.2 Establish a threatened orchid seed bank and determine seed viability M N/A M N/A
7.3 Establish a mycorrhizal fungi bank M N/A M N/A
7.4 Establish and maintain cultivated populations M N/A M N/A
7.5 Maintain a database of threatened orchid taxa in cultivation L N/A L N/A
Responsibility DSE-BNR, RBG DSE-BNR DSE-BNR, RBG DSE-BNR
8. Translocate cultivated plants        
8.1 Determine criteria for re-stocking/re-introduction Completed Completed Completed Completed
8.2 Evaluate site suitability N/A N/A N/A N/A
8.3 Determine long term cost-benefits and feasibility of translocating plants N/A N/A N/A N/A
8.4 Prepare and implement translocation plans N/A N/A N/A N/A
8.5 Maintain translocated populations N/A N/A N/A N/A
Responsibility DSE-BNR DSE-BNR DSE-BNR DSE-BNR
9. Implement an education and communication strategy        
9.1 Prepare technical educational material on in-situ recovery techniques L L L L
9.2 Undertake community extension L L L H
9.3 Conduct workshops and symposia on in-situ recovery techniques L L L L
9.4 Encourage and support research by Higher Education Institutions and existing research partners N/A N/A N/A N/A
Responsibility DSE-BNR DSE-BNR DSE-BNR DSE-BNR
10. Consolidate recovery and extend networks        
10.1 Maintain the Threatened Orchid Recovery Team L L L L
10.2 Establish and facilitate regional Recovery Teams L L L L
10.3 Co-ordinate recovery and exchange knowledge with interstate agencies N/A N/A N/A N/A
Responsibility DSE-BNR, TSN DSE-BNR, TSN DSE-BNR, TSN DSE-BNR, TSN

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