Recovery Plan for Three Orchid Species in South Australia and Victoria: Caladenia richardsiorum (Little Dip Spider-orchid) Caladenia calcicola (Limestone Spider-orchid) Pterostylis tenuissima




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Recovery Plan for Three Orchid Species in
South Australia and Victoria:

Caladenia richardsiorum (Little Dip Spider-orchid)
Caladenia calcicola (Limestone Spider-orchid) Pterostylis tenuissima (Swamp Greenhood)


Catherine Dickson, Ross Anderson, Anna Murphy, Andrew Pritchard and Anne Craig



Department of Environment, Water and Natural Resources, South Australia,

South East Region

&

Department of Sustainability and Environment, Victoria,

South West Victoria Region







Prepared by Catherine Dickson, Ross Anderson and Anna Murphy for the Department of Environment, Water and Natural Resources, South Australia, and by Andrew Pritchard and Anne Craig for the Department of Sustainability and Environment, Victoria.

Adopted under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999 on 17 January 2014.

ISBN: 978-0-9870538-5-5

© Department of Environment, Water and Natural Resources, South Australia

This publication is copyright. Apart from any use permitted under the copyright Act 1968, no part may be reproduced by any process without prior written permission from the Government of South Australia. Requests and enquiries regarding reproduction should be addressed to:

Senior Ecologist, Threatened Species and Ecological Communities,

Department of Environment, Water and Natural Resources

GPO Box 1047

ADELAIDE, SA, 5001

Note:


This recovery plan sets out the actions necessary to stop the decline of, and support the recovery of, the listed threatened species or ecological community. The Australian Government is committed to acting in accordance with the plan and to implementing the plan as it applies to Commonwealth areas.

Disclaimer:

The plan has been developed with the involvement and cooperation of a broad range of stakeholders, but individual stakeholders have not necessarily committed to undertaking specific actions or guarantee that the publication is without flaw of any kind. The attainment of objectives and the provision of funds may be subject to budgetary and other constraints affecting the parties involved. Proposed actions may be subject to modification over the life of the plan due to changes in knowledge.

Citation:

Dickson C.R., Anderson R.A., Murphy A., Pritchard A., and Craig A. (2012). Recovery Plan for three orchid species in South Australia and Victoria: Caladenia richardsiorum (Little Dip Spider-orchid), Caladenia calcicola (Limestone Spider-orchid) and Pterostylis tenuissima (Swamp Greenhood). Department of Environment, Water and Natural Resources, South Australia, South East Region & Department of Sustainability and Environment, Victoria, South West Victoria Region.

Cover photograph:

Little Dip Spider-orchid Caladenia richardsiorum by Andrew Pritchard, Limestone Spider-orchid Caladenia calcicola by Kate Vlcek and Swamp Greenhood Pterostylis tenuissima by Anna Murphy.

Contents


List of Tables 4

List of Figures 4

Part A: Overview 5

1.1 Introduction 5

1.2 Regional Context 5

1.3 Relationship to other Management Documents 6

1.4 International Obligations 6

1.5 Storage of Spatial and Other Data 6

Part B: General Species Information 7

2.1 Nomenclature 7

2.2 Distinguishing Morphological Features 7

2.3 Ecology 8

2.4 Distribution and Population Size 9

2.5 Sub-population and Habitat Critical to Survival 10

2.6 Decline and Threats 10

Part C: Species Information 12

3.0 Caladenia richardsiorum D.L.Jones (Little Dip Spider-orchid) 12

3.1 Description 12

3.2 Conservation Status 12

3.3 Distribution and Population Size 12

3.4 Habitat 12

3.5 Ecology 14

3.6 Threats 14

3.7 Previous Recovery Actions 15

3.8 Community engagement 15

4.0 Caladenia calcicola G.W.Carr (Limestone Spider-orchid) 17

4.1 Description 17

4.2 Conservation Status 17

4.3 Distribution and Population Size 17

4.4 Habitat 18

4.5 Ecology 18

4.6 Threats 18

4.7 Previous Recovery Actions 19

5.0 Pterostylis tenuissima Nicholls (Swamp Greenhood) 22

5.1 Description 22

5.2 Conservation Status 22

5.3 Distribution and Population Size 22

5.4 Habitat 24

5.5 Ecology 24

5.6 Threats 24

5.7 Previous Recovery Actions 25

Part D: Objectives, Performance Criteria and Actions 28

6.1 Recovery Objectives and Performance Criteria 28

6.2 Program Implementation and Evaluation 28

6.3 Duration and Cost of Recovery Process 28

6.4 Management Practices 29

6.5 Biodiversity Conservation Benefits 29

6.6 Affected Interests 30

6.7 Role and Interests of Indigenous People 30

6.8 Social and Economic Impacts 30

References 40

Personal Communications and Observations 43





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