A Rapid Vulnerability Assessment of Coastal Habitats and Selected
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A Rapid Vulnerability Assessment of Coastal Habitats and Selected Species to Climate Risks in Chanthaburi and Trat (Thailand), Koh Kong and Kampot (Cambodia), and Kien Giang, Ben Tre, Soc Trang and Can Gio (Vietnam) Mark R. Bezuijen, Charlotte Morgan and Robert J. Mather BUILDING RESILIENCE TO CLIMATE CHANGE IMPACTS-COASTAL SOUTHEAST ASIA Commission logo Our vision is a just world that values and conserves nature. Our mission is to influence, encourage and assist societies throughout the world to conserve the integrity and diversity of nature and to ensure that any use of natural resources is equitable and ecologically sustainable. The designation of geographical entities Copyright: © 2011 IUCN, International in Chanthaburi and Trat (Thailand), Koh in this book, and the presentation of the Union for Conservation of Nature and Kong and Kampot (Cambodia), and Kien material, do not imply the expression of Natural Resources Giang, Ben Tre, Soc Trang and Can Gio any opinion whatsoever on the part of (Vietnam). Gland, Switzerland: IUCN. IUCN or the European Union concerning Reproduction of this publication for the legal status of any country, territory, or educational or other non-commercial pur- ISBN: 978-2-8317-1437-0 area, or of its authorities, or concerning poses is authorized without prior written the delimitation of its frontiers or boundar- permission from the copyright holder pro- Cover photo: IUCN Cambodia ies. vided the source is fully acknowledged. Layout by: Ratirose Supaporn The views expressed in this publication do Reproduction of this publication for resale not necessarily reflect those of IUCN or or other commercial purposes is prohib- Produced by: IUCN Asia Regional Office the European Union ited without prior written permission of the copyright holder. Available from: IUCN This publication has been made possible http://www.iucn.org/building-coastal- in part by funding from the European Citation: Bezuijen, M. R., Morgan, C., resilience Union Mather, R.J. (2011). A Rapid Vulner- ability Assessment of Coastal Habitats Published by: IUCN, Gland, Switzerland and Selected Species to Climate Risks This publication has been produced with the assistance of the European Union. Its contens are the sole responsibility of IUCN and can in no way be taken to reflect the views of the European Union. A Rapid Vulnerability Assessment of Coastal Habitats and Selected Species to Climate Risks in Chanthaburi and Trat (Thailand), Koh Kong and Kampot (Cambodia), and Kien Giang, Ben Tre, Soc Trang and Can Gio (Vietnam) Mark R. Bezuijen, Charlotte Morgan and Robert J. Mather BUILDING RESILIENCE TO CLIMATE CHANGE IMPACTS-COASTAL SOUTHEAST ASIA Contents Acknowledgements ................................................................................................................................................................... 4 Foreword ................................................................................................................................................................................... 5 Executive summary .................................................................................................................................................................... 7 Recommendations ................................................................................................................................................................... 11 1. Introduction ......................................................................................................................................................................... 15 2. Methods .............................................................................................................................................................................. 16 2.1 Coastal habitats and species addressed in this study ............................................................................................... 16 2.2 Compilation of data ................................................................................................................................................. 16 2.3 Vulnerability assessment .......................................................................................................................................... 17 2.4 Assessment Methodology ........................................................................................................................................ 18 2.5 Limitations ............................................................................................................................................................... 18 3. The project area ................................................................................................................................................................... 20 3.1 Coastal habitats....................................................................................................................................................... 20 3.2 Selected species ..................................................................................................................................................... 21 3.3 Protected areas and other sites of conservation importance ..................................................................................... 21 3.4 Climate change ....................................................................................................................................................... 23 4. Vulnerability Assessment ...................................................................................................................................................... 27 4.1Coastal habitat ......................................................................................................................................................... 27 4.3 Selected species of Mammals, Birds and Reptiles .................................................................................................... 42 4.4 Selected species of the marine and brackish shellfish .............................................................................................. 63 4.5 Selected Species in marine and brackish finfish culture ............................................................................................ 70 4.6 Selected species in wild capture fisheries ................................................................................................................. 72 4.7 Protected areas and other sites of conservation importance ..................................................................................... 75 4.8 Vulnerability assessments summarised by province .................................................................................................. 76 5. Adaptive capacity and adaptation ........................................................................................................................................ 79 References .............................................................................................................................................................................. 88 Appendices ............................................................................................................................................................................. 99 Appendix 1. Definitions for habitat vulnerability assessment .......................................................................................... 100 Appendix 2. Definiations for species vulnerability assessment ....................................................................................... 102 Appendix 3. Coastal habitats in the project area ........................................................................................................... 103 Appendix 4. Status of selected species in the project area ........................................................................................... 104 Appendix 5. Protected areas and other sites of conservation importance ..................................................................... 108 List of tables Table 1. Comparison of Important Bird Areas (IBAs) and designated and proposed protected areas in the project area..................22 Table 2. Predicted extent of inundation under a scenario of 1-m rise in sea-level, for three provinces of the IUCN project in the Me kong Delta..........................................................................................................................................................25 Table 3. Summary of the sensitivities of coastal habitats to climate change impacts........................................................................28 Table 4. Vulnerability assessment of climate change for coastal habitats in the study area...............................................................31 Table 5. Summary of vulnerability assessments for coastal habitats and selected species in study area..............................................41 Table 6. Habitats and selected species assessed to be most vulnerable from the combined effect of climate change and existing threats...........................................................................................................................................................42 Table 7. Vulnerability assessment of climate change for selected species in the study area............................................................45 Table 8: Summary of the sensitivities of economically important coastal species to climate change impacts..................................54