Development and Implementation of a Vulnerability Assessment Tool to Inform Decision-Making in Socio-Ecological Systems
Total Page:16
File Type:pdf, Size:1020Kb
ResearchOnline@JCU This file is part of the following work: Johnson, Johanna (2018) Development and implementation of a vulnerability assessment tool to inform decision-making in socio-ecological systems. PhD Thesis, James Cook University. Access to this file is available from: https://doi.org/10.25903/s9hy%2D1y32 Copyright © 2018 Johanna Johnson. The author has certified to JCU that they have made a reasonable effort to gain permission and acknowledge the owners of any third party copyright material included in this document. If you believe that this is not the case, please email [email protected] Fall 08 Development and implementation of a vulnerability assessment tool to inform decision-making in socio-ecological systems Johanna Johnson, MSc College of Science & Engineering PhD Candidate Submitted: October 2017 Revised: August 2018 Statement of Contribution The research presented in this thesis is based on papers published prior to enrolment as per the James Cook University HDR PhD procedures. The papers include some contributions from co-authors. Each chapter is anchored by a paper or book chapter where I am the lead author, and includes a statement of each authors’ contribution. In addition, each chapter is supported by additional publications where I am either the lead or co-author, that strengthen my contribution to the field of work, and these are listed in Appendix 1 as further reading. Acknowledgements My PhD candidature was by prior publication and represents 12 years of work progressing assessments of vulnerability to develop an approach that delivers quantitative results to inform management and conservation. I am grateful for the support of my supervisors: Professors Michael Kingsford and Helene Marsh for advising me as I compiled my ‘story’, for their comments on my PhD ‘package’ and aspects of the work contained within this thesis. The research presented within the thesis was made possible by grants, contract projects, and logistical support from the following (in no particular order): Great Barrier Reef Marine Park Authority, Pacific Community (SPC), SPREP, Food and Agriculture Organization of the United Nations (FAO), WorldFish, Australian Department of Climate Change, James Cook University, Torres Strait Regional Authority, Australian Fisheries Management Authority and the Protected Zone Joint Authority, Australian Fisheries Research and Development Corporation, Australian Department of Foreign Affairs and Trade AusAID program, National Climate Change Adaptation Research Facility (NCCARF), USA Climate Change Science Program, USAID Pacific-American Climate Fund, Queensland Parks and Wildlife Service, and the Coral Reef Watch program at NOAA. Importantly, I want to thank my partner in life and work, my best friend and kinder half of parenting, David Welch. Without his encouragement and belief in me, and professional inspiration, I would not have taken the steps needed to pull this together. To our precocious and wonderful son, Jake, you can now call me Doc but I still prefer Mama! My close friend and colleague Dr Jeff Maynard provided a consistent and valued source of support (and pressure) during my decision to undertake my PhD, and helped with funding and his unique intellect to bring together a logical and cogent argument. I’m also indebted to other key sources of working inspiration in my life, Dr Johann Bell and Jane Waterhouse. The final versions of most of the figures produced for the thesis were created in collaboration with Dieter Tracey. Editors and reviewers have a thankless job at times so I acknowledge their time, support, and critical comments here. Editors, reviewers, administrative and publishing staff at the following journals all contributed their time and insightful comments to the publications produced during my candidature: Climatic Change, Nature Climate Change, International Journal of Ecology, Reviews in Fisheries Science, Marine Policy, Environmental Management, Conservation Letters, Coral Reefs, Australasian Journal of Environmental Management, FAO Fisheries and Aquaculture Proceedings, and Wiley Publications. Lastly, I would like to thank my parents, Alkis and Irene Johnson, who have always been supportive of my journey in life, my career as well as all my travels and adventures. Without their support and positive attitude to life, I could not have pursued so many fulfilling projects or dragged my family around the world with me in our magical mystery ride. Table of Contents STATEMENT OF CONTRIBUTION ACKNOWLEDGEMENTS ABSTRACT CHAPTER 1: INTRODUCTION 1.1 Niche for a new approach 1.2 The challenge for mariNe maNagers 1.3 A novel quantitative vulnerability assessment approach 1.4 Thesis focus and research objectives CHAPTER 2: CLIMATE CHANGE IMPLICATIONS FOR MARINE SOCIO-ECOLOGICAL SYSTEMS CHAPTER 3: UNDERSTANDING CLIMATE CHANGE VULNERABILITY ENABLES ACTIONS TO ADAPT CHAPTER 4: INDICATORS FOR A STRUCTURED FRAMEWORK TO ASSESS VULNERABILITY TO CLIMATE CHANGE CHAPTER 5: VULNERABILITY ASSESSMENTS AS A TOOL TO ENHANCE RESILIENCE OF SOCIO- ECOLOGICAL SYSTEMS CHAPTER 6: QUANTIFYING VULNERABILITY TO TARGET RESILIENCE-BASED MANAGEMENT CHAPTER 7: DISCUSSION 7.1 What the research meaNs for theory iN this field 7.2 Current practical aPPlicatioNs of the research 7.3 Future applications and research REFERENCES APPENDIX 1: SUPPLEMENTARY PUBLISHED MATERIAL APPENDIX 2: SUPPLEMENTARY MATERIAL FOR CHAPTER 5 APPENDIX 3: SUPPLEMENTARY MATERIAL FOR CHAPTER 6 Abstract The Intergovernmental Panel on Climate Change (IPCC) identified the implications of global warming and ocean acidification for marine ecosystems worldwide in the second and third assessment reports released in 1995 and 2001, respectively. Evidence of impacts strengthened with the most extensive and severe thermal coral bleaching event globally in 1998, where 16% of the world’s coral reefs were damaged, followed by a second global event in 2002 and a third global event in 2016. Declines in reef habitat consequently affected fish and invertebrate populations, fisheries and resource-dependent communities. In an effort to minimise impacts and support recovery, research focused on gaining a better understanding of the impacts of climate change on marine systems. Importantly, focus also increased on the flow-on effects of ecological impacts to society and economies; coupled socio-ecological systems (SES). This thesis outlines the evolution of a method that provides resource managers faced with climate change, with an assessment approach for focusing local action to increase the resilience of ecosystems by reducing the stresses of human activities. The IPCC defines vulnerability to climate change as “the degree to which a system is susceptible to, or unable to cope with, adverse effects of climate change, including climate variability and extremes”. Understanding vulnerability initially took the form of qualitative assessments that aimed to include social, ecological and economic information, as have been applied in other domains, such as hazard risk and human health, and linking public and expert knowledge to policy and sustainability governance. Through this body of work and the work of other researchers, these assessments have become more empirical over time, providing information on vulnerability by using an integrated approach that includes scientific data, traditional and community knowledge, and expert elicitation. Information on the responses and impacts of climate change on marine SES also began to show that events were progressing faster than anticipated and some ecosystems were already changing structurally and functionally. Resource-dependent industries, such as fisheries, were already experiencing declines and there was a need for empirical vulnerability assessments to inform adaptation through decision-support tools. This matured vulnerability assessments further with targets for management a critical consideration in developing a structured approach. The objective of this thesis was to review the evolution of climate change vulnerability assessments, and move beyond documenting the responses to and potential impacts of climate change to understanding the flow-on effects to the industries and communities that depend on marine resources, and quantitatively identifying adaptations. This thesis contributes to new knowledge in the field of climate change vulnerability by: • Taking a conceptual model and developing indicators and criteria for quantifying vulnerability to clearly identify the drivers of vulnerability and provide a clear pathway for targeting effective adaptation actions. • Designing a step-wise process that incorporated management objectives and evaluation of results, and • Testing this novel criteria-based method that integrates socio-ecological factors in a range of locations and systems to field test its utility and demonstrate its application in a range of settings. The thesis outlines the development of a Semi-quantitative Vulnerability Assessment (SQA) tool that transforms theory into practice to inform decision-making and support local resource managers in targeting their actions. The method includes explicit steps for setting management objectives, identifying indicators and criteria, and empirically scoring vulnerability to deliver outputs that address management objectives, adaptation planning, policy and resilience-based actions. The rapid assessment tool was applied in different locations and settings to deliver empirical results using available data and expert judgement to support management decisions