Four components of the community are listed as threatened ecological communities (TECs) endorsed by the WA Minister for the Environment. They are:
Herb rich saline shrublands in clay pans (Community Type 7 (SCP07)) – Vulnerable
Herb rich shrublands in clay pans (Community Type 8 (SCP08)) – Vulnerable
Dense shrublands on clay pans (Community Type 9 (SCP09)) – Vulnerable
Shrublands on dry clay flats (Community Type 10a (SCP10a)) – Endangered.
The fifth component of the community, ‘Clay pans with shrubs over herbs’, is listed as Priority 1 by Department of Parks and Wildlife.
The umbrella type ‘Clay pans of the Swan Coastal Plain’ is ranked Critically Endangered under the EPBC Act.
Components of the clay pan communities are in Wetlands of National Significance, including Brixton Street Wetlands, the Ellen Brook Swamps Systems; and Ramsar sites, including Forrestdale Lake Nature Reserve and the Peel-Yalgorup System (Environment Australia, 2001).
5. RECOVERY OBJECTIVES AND CRITERIA
5.1. Objectives To conserve the ecological and conservation values of the clay pan communities of the Swan Coastal Plain by:
Maintaining or improving the overall condition of each of the clay pan communities.
Reducing the level of threat to each of clay pan communities.
5.2 Criteria for success:
90% or more of the aerial extent of occurrences of each clay pan type covered by this recovery plan, maintained at the same condition rank, or improved (Bush Forever condition scales) over the life of the plan, excluding effects of drying climate that are outside the scope of this plan.
An increase in the number of occurrences of the clay pan types managed for conservation and/or with conservation included in the purpose.
Representative areas of the clay pan types across their geographical range maintained in the same or improved condition (Bush Forever condition scales).
5.3 Criteria for failure:
Decline in condition rank to a lower category (Bush Forever condition scales) of 10% or more of the total aerial extent of the communities covered by this plan, excluding effects of drying climate that are outside the scope of this plan.
Failure to achieve an increase in the area managed for conservation for the communities covered by this plan.
6. RECOVERY ACTIONS
The responsible authority is frequently listed as the relevant Parks and Wildlife District. This refers largely to initiating and guiding actions. However, in general the relevant Parks and Wildlife District, in liaison with the Species and Communities Branch and the relevant Recovery Team share the primary responsibility for securing funds for, and/or coordinating the implementation of, recovery actions.
17.6.1. Existing recovery actions
Many recovery actions have been completed for the clay pan communities:
The extent and boundaries of all known occurrences have been mapped.
Since the State listings of the clay pan communities as TECs in 2001 a series of occurrences, or portions of occurrences of the clay pan communities have been acquired for the purpose of conservation as follows. Some locations have not yet been officially included in conservation tenure:
TEC markers have been installed at Hall Road (Occurrence 14), Boyanup West Rd and Roselands Rd (occurrence 30), Turner Rd, Byford (occurrence 67), Bradbury Nature Reserve (occurrence 83, 84) and on Western Power poles to indicate the TEC occurrence at Karnup Road (occurrence 45).
All relevant managers of lands that contain the clay pan communities have been notified of the importance of the communities.
Several occurrences have been fenced to prevent damage and help minimise spread of disease. To date, the occurrences at Forrestdale Lake (myFL07, myFL06 and FL02 – occurrences 33, 34, 46, 47, 80, 86), Nicholson Rd (Occurrences 43, 44, 82), Hall Rd (Occurrences 14, 83, 84), Austin Bay Nature Reserve (occurrences 9, 10, 11, 12), Kenwick Rd, Kenwick (occurrences 13, 23, 24, 41), Bickley Rd, Boundary Rd, Brook Rd, Kenwick (occurrences 4, 60, 62, 63, 79, 97), Moore River Nature Reserve (occurrence 22), Ellen Brook Reserve (occurrence 31), Brixton St and Albany Hwy, Kenwick (occurrence 35, 50), Meelon Nature Reserve (occurrence 36), Nicholson Rd and Woodmore St (occurrence 43, 44, 82), Hensbrook Loop, Forrestdale (occurrence 51), Mundijong Rd, Peel Estate (occurrence 66), Turner Rd, Byford (occurrence 67), Kooljerrenup Nature Reserve (occurrence 78), Bradbury Nature Reserve (occurrence 83, 84), Drummonds Nature Reserve (occurrence 99, 100), Julimar (occurrence 101), and Keane Rd (occurrences 88 and 89) have been fenced, and Fish Rd (occurrences 2, 76) has been partially fenced.
Weed control has been undertaken at Fish Rd (Occurrences 2, 76) in ongoing perimeter weed management by spraying of African lovegrass (Eragrostis curvula) and annual grasses. Weed control including of watsonia (Watsonia meriana var. bulbillifera) has also been completed at several other sites; atBullsbrook Nature Reserve (occurrence 8), Austin Bay Nature Reserve (occurrences 9, 10, 11, 12), Ellen Brook Reserve (occurrence 31); and arum lily (Zantedeschia aethiopica) control at Brixton St and Albany Hwy, Kenwick (occurrences 35, 50), Meelon Nature Reserve (occurrence 36), Hensbrook Loop, Forrestdale (occurrence 51), South Western Hwy and Waterloo Rd (occurrence 38, 52) and Fish Rd, Acton Park Rd and Yoongarillup Rd, Yoongarillup (occurrences 2, 76).
Weed management and restoration plans have been developed for Bullsbrook Nature Reserve (occurrence 8), Ellen Brook Nature Reserve (occurrence 31) and Brixton St wetlands (occurrences 35, 50).
A series of management plans have been developed for Jandakot Regional Park, Bandicoot Brook bushland – North Waroona Reserve, Brickwood Reserve and Briggs Park.
Boardwalks and information shelters have been installed at Forrest Rd, Forrestdale (occurrences 33, 34, 46, 80, 86) and signage installed for public education on access and dieback hygiene at Brixton St and Albany Hwy, Kenwick (occurrence 35, 50) and Forrest Rd, Forrestdale (occurrences 33, 34, 46, 80, 86).
Rubbish removal has been completed at Forrest Rd, Forrestdale (occurrence 33, 34, 46, 80, 86) and Brixton St and Albany Hwy, Kenwick (occurrence 35, 50).
Track closures, construction of a parking area, and the installation of access gates, bollards, hygiene station and signage have been completed at occurrences 109, 110, (Birdwood Nature Reserve).
The Julimar area (occurrence 101, 108) was fenced to prevent damage by bikes; Drummonds Nature Reserve (occurrences 99, 100) was fenced to prevent four wheel drive damage. Damage was observed previously at both sites.
Disease mapping has been completed at Bullsbrook (occurrence 8) and a dieback management plan prepared.
All original quadrats established in the clay pan communities for Gibson et al. (1994) were reestablished and rescored in 2013.