13.2 The Wallis Lake Estuary Management Committee - Great Lakes ...

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Wallis Lake Estuary Management Plan E.6 Management Area A, B, C, D, E, F Management Objective Protect and enhance riparian vegetation Action No Action Indicative Cost E.6.1 Employ a river keeper or other paid worker to maintain and restore vegetation in $80,000 riparian zones per year E.6.2 Conduct a riparian vegetation assessment $20,000 + staff time E.6.3 E.6.4 E.6.5 Concentrate revegetation and restoration efforts in priority areas identified in the riparian vegetation assessment Develop and execute a control program for weeds of national significance including Ground and Climbing Asparagus, Mother of Millions, Lantana, African Boxthorn, Pampas Grass, Bridal Creeper and Bitou Bush on Cut, Bells, Mathers, Long, Cockatoo, Oaky and Godwins Islands Monitor and enforce compliance with SEPP 14, the Native Vegetation Act and tree preservation orders to reduce the incidence of illegal clearing of foreshore vegetation $50,000 + staff time $10,000 per year Priority Responsibilities Progress Immediate (A3) High (B3) High (B3) High (C3) GLC, DIPNR, Waterways GLC, DIPNR, Waterways, Lands GLC, DIPNR, Waterways, Lands, Landcare Lands, GLC Staff time High (D2) GLC + DIPNR Ongoing E.6.6 Continue to provide technical support and training to local Landcare groups $50,000 Medium (B5) CMA Ongoing per year Comments There is a very real need for a paid worker to coordinate revegetation and weed control efforts in riparian zones. At present community groups almost solely conduct the maintenance of riparian zone habitats. An employed river keeper or other paid worker would be responsible for coordinating efforts to remove environmental and noxious weeds from foreshore areas and adjacent bushland of rivers and islands. Effective control of these weeds requires a minimum of 20 hrs manual labour per hectare twice per year plus costs associated with transport to and from the islands and appropriate chemicals. If the person employed was a river keeper (a joint Waterways initiative), peak periods would be spent on the water in Wallis Lake enforcing boating-related legislation. The results of the riparian vegetation assessment should be included in the foreshore management plan for the Wallis Lake foreshores and estuarine islands. The assessment should also ensure identify areas where riparian zone wildlife transport corridors have been compromised and areas in need of revegetation/restoration. Public reserve areas experiencing considerable illegal clearing are Muddy Creek, Coomba Park, Forster Keys and Pipers Bay. However it is acknowledged that most reserves experience this to some degree. The main reasons that this is occurring are to increase/maintain views and gain direct access to the waterway. Regular monitoring and education through strategy C.3 will contribute to reducing the occurrence of illegal clearing in reserve areas. 48
Wallis Lake Estuary Management Plan [Plate 4.6: Unauthorised modification and dumping in the riparian zone in Muddy Creek] E.7 Management Area A, B, C, D, E, F Management Objective Protect important shorebird roosting, nesting and foraging areas Action No E.7.1 E.7.2 Action Support the findings of the Shorebird assessment and marine values data collation program and incorporate into future estuary and foreshore management and conservation planning Continue to protect migratory birds and bird habitat under JAMBA and CAMBA international agreements Indicative Priority Responsibilities Progress Cost Staff time Immediate (A3) DEC, GLC Staff time High (B3) All levels of Government Comments Previous studies have reported that the Wallingat State Forest and Wallis Lake Islands (particularly Little Tern, Sand, Godwin, Miles, Sand and Pelican Islands) are important areas of bird habitat requiring conservation (Browne & Scott 1985; Carter 1995). The osprey (Pandion haliaetus), little tern (Sterna albifrons) and pelican (Pelecanus conspicillatus) have all been identified in these studies requiring special conservation attention. However these studies are in need of updating. The Shorebird assessment and marine values data collation program commenced in 2004 and will provide a systematic assessment of shorebird populations, nest sites, foraging sites, roosting sites and local movement patterns needed to inform future estuary and foreshore management and conservation planning. Ongoing 49
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