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Arthur-Pieman Conservation Area Vehicle Tracks Assessment: Geoconservation, Flora and Fauna Values and Impacts

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Arthur-Pieman Conservation Area Vehicle Tracks Assessment: Geoconservation, Flora and Fauna Values and Impacts Arthur-Pieman Conservation Area Vehicle Tracks Assessment: Geoconservation, Flora and Fauna Values and Impacts A Report commissioned by the Tasmanian Parks and Wildlife Service June 2007 Department of Primary Industries and Water ARTHUR-PIEMAN CONSERVATION AREA Vehicle Tracks Assessment: Geoconservation, Flora and Fauna Values and Impacts A Report commissioned by the Tasmanian Parks and Wildlife Service June 2007 Resource Management & Conservation Division Department of Primary Industries and Water Hobart, Tasmania APCA Vehicle Track Assessment: Geoconservation, Flora and Fauna Values and Impacts i __________________________________________________________________________________________ IMPORTANT NOTE This report was commissioned by the Parks and Wildlife Service to assist a process to determine appropriate management of vehicular tracks in Arthur-Pieman Conservation Area. The recommendations in the report are based on an assessment of natural values (geoconservation, flora and fauna) only. They do not take account of cultural values, which are the subject of a separate assessment, and other factors. Decisions concerning management of the vehicle tracks are the responsibility of the Parks and Wildlife Service. ACKNOWLEDGEMENTS The Resource Management and Conservation Division of the Department of Primary Industries and Water prepared this report with input from Michael Comfort, Rolan Eberhard, Richard Schahinger, Chris Sharples and Shaun Thurstans. Comments were received from the following RMC staff: Michael Askey- Doran, Jason Bradbury, Sally Bryant, Stephen Harris, Ian Houshold, Michael Pemberton and Greg Pinkard. Staff from the Parks and Wildlife Service at Arthur River provided assistance in the field and generously shared their collective knowledge. Air photos used in this study were orthorectified by Matt Dell and John Corbett. The Arthur-Pieman Vehicle Tracks Assessment Project was funded by the Natural Heritage Trust through Cradle Coast NRM. Citation: Resource Management and Conservation Division (2007). Arthur-Pieman Conservation Area. Vehicle Tracks Assessment: Geoconservation and Biological Values. Report commissioned by Parks and Wildlife Service, Tasmania. Resource Management and Conservation Division, Department of Primary Industries and Water, Hobart. ABBREVIATIONS APCA Arthur-Pieman Conservation Area CFEV Conservation of Freshwater Ecosystem Values Project, DPIW CHAH Council of Heads of Australasian Herbaria DPIW Department of Primary Industries and Water (Tasmania) DTAE Department of Tourism, Arts and Environment (Tasmania) EPBC Act Commonwealth Environment Protection and Biodiversity Conservation Act 1999 GIS Geographic Information System NRM Natural Resource Management ORV Off-road vehicle PWS Parks and Wildlife Service (Tasmania), DTAE RFA Regional Forest Agreement RPDC Resource Planning and Development Commission (Tasmania) TASVEG Tasmanian Vegetation Monitoring and Mapping Program, DPIW TGD Tasmanian Geoconservation Database TSP Act Tasmanian Threatened Species Protection Act 1995 Plant nomenclature follows Buchanan (2005) except where otherwise noted. Grid coordinates given in the text are referenced to the Geodetic Datum of Australia 1994 horizontal datum, zone 55 (Australian Map Grid). Cover photo: Pedder River on Kenneth Bay, Arthur-Pieman Conservation Area APCA Vehicle Track Assessment: Geoconservation, Flora and Fauna Values and Impacts ii __________________________________________________________________________________________ CONTENTS 1. SUMMARY................................................................................................................................1 2. INTRODUCTION ...................................................................................................................2 3. BACKGROUND .......................................................................................................................8 3.1. Off-road vehicles in the APCA..................................................................................................................8 3.2. Land systems .................................................................................................................................................8 3.3. Environmental impacts of off-road vehicles..........................................................................................11 3.4. Administrative context...............................................................................................................................12 4. METHODOLOGY ................................................................................................................. 17 4.1. Geoconservation Assessment...................................................................................................................17 4.2. Flora Assessment........................................................................................................................................18 4.3. Fauna Assessment ......................................................................................................................................18 5. RESULTS................................................................................................................................20 5.1. Condition of priority tracks ......................................................................................................................20 5.2. Geoconservation.........................................................................................................................................21 5.3. Flora..............................................................................................................................................................30 5.4. Fauna ............................................................................................................................................................42 5.5. Rehabilitation...............................................................................................................................................51 6. RECOMMENDATIONS .......................................................................................................52 6.1. General recommendations ........................................................................................................................52 6.2. Specific recommendations ........................................................................................................................53 7. REFERENCES.......................................................................................................................60 8. APPENDIX 1. Track descriptions ..........................................................................................67 9. APPENDIX 2. Results of air photo interpretation................................................................ 163 10. APPENDIX 3. Sites of geoconservation significance........................................................... 169 11. APPENDIX 4. Threatened flora records and plant communities ........................................ 214 12. APPENDIX 5. Threatened and significant fauna records.................................................... 219 13. APPENDIX 6. Results of preliminary rehabilitation assessment......................................... 222 Table 1. APCA priority tracks assessed in this study...............................................................................................3 Table 2. APCA land systems .......................................................................................................................................9 Table 3. Sites of geoconservation significance in the APCA ...............................................................................23 Table 4. Threatened flora recorded within 500 m of the APCA priority tracks...............................................31 Table 5. Plant communities at risk from tracks and ORV activity in the APCA..............................................35 Table 6. Threatened and conservation significant fauna.......................................................................................42 Table 7. APCA shorebird surveys, Autumn 2006..................................................................................................45 Table 8. APCA shorebird surveys, Spring 2006.....................................................................................................46 Table 9. Orange-bellied parrot: key feeding sites in the APCA...........................................................................48 Table 10. Marrawah skipper: key sites in the APCA .............................................................................................49 Table 11. Wetlands along the APCA priority tracks..............................................................................................50 Table 12. Summary recommendations for specific tracks....................................................................................54 APCA Vehicle Track Assessment: Geoconservation, Flora and Fauna Values and Impacts iii __________________________________________________________________________________________ Figure 1. APCA priority tracks: Mawson Bay to Eva Point...................................................................................5 Figure 2. APCA priority tracks: Eva Point to Johnsons Head ..............................................................................6 Figure 3. APCA priority tracks: Johnsons Head to Pieman River
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