The IUCN Criteria Review:
Report of the Scoping Workshop


Report of a workshop held at the Zoological Society of London on March 2-3 1998, part of the review of the IUCN Criteria for listing threatened species.

Edited by: Nick Isaac and Georgina M. Mace
Institute of Zoology, Zoological Society of London
Regent's Park, London NW1 4RY, UK
Tel: +44 171 449 6692
Fax: +44 171 483 2237
Email: g.mace@ucl.ac.uk

Additional copies of this report may be obtained by contacting the SSC Program office



TABLE OF CONTENTS
1. INTRODUCTION

1.1 CONTEXT
1.1.1 Development of the 'new' quantitative criteria

1.1.2 The 1996 Red List of Threatened Animals

1.2 THE CRITERIA REVIEW
1.2.1 The WCC Resolution
1.2.2 The criteria scoping workshop

1.3 THE FUTURE OF RED LISTING

2. OUTPUT FROM THE MEETING

2.1 WORKING GROUP 1: LISTING PROCEDURE AND DOCUMENTATION, THE
CATEGORIES
2.1.1 Summary

2.1.2 Procedural issues
2.1.3 Documentation of background and criteria
2.1.4 Regional Issues
2.1.5 Categories of Lower Risk
2.1.6 Listing issues
2.1.7 Other issues

2.2 WORKING GROUP 2: CRITERION A AND GENERATION LENGTH
2.2.1 Summary

2.2.2 Synthesis of the issues
2.2.3 Process recommendations

2.3 WORKING GROUP 3: THE CATEGORIES AND CRITERIA: DEFINITIONS
2.3.1 Summary

2.3.2 Purpose of the Red List
2.3.3 Range area thresholds and problems of scale
2.3.4 Highly skewed metapopulation structure
2.3.5 Parity of criteria B and C
2.3.6 Extremely restricted populations
2.3.7 Irregular phenomena
2.3.8 Habitat availability and status
2.3.9 Unusual ranges
2.3.10 Definition of location
2.3.11 Other issues not fully dealt with

2.4 GENERAL ISSUES AND GROUP DISCUSSION
2.4.1 Purpose of the Red List

2.4.2 Universality of criteria thresholds
2.4.3 Generation length
2.4.4 Marine fishes
2.4.5 Criterion E
2.4.6 Data quality and Deficiency
2.4.7 Miscellaneous general points

3. SUMMARY AND CONCLUSIONS
3.1 GENERAL CONCUSIONS
3.1.1 Re-drafting the Red booklet

3.1.2 Range area issues
3.1.3 Marine species
3.1.4 Criterion A
3.1.5 Regional listing
3.1.6 Other issues

3.2 DISSEMINATION AND FORMAT OF THE WORKSHOP REPORT

4. REFERENCES

5. APPENDIX A: TABLE OF CORRESPONDENCE

6. APPENDIX B: TABLE OF ISSUES

7. APPENDIX C: LIST OF PARTICIPANTS


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