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Coastal communities are on the frontlines of three accelerating global change drivers, climate change, blue growth, and the expansion of area-based conservation, leading to a “triple exposure” scenario. Despite efforts to maximize social benefits from climate, development, and conservation, externally driven processes can converge to amplify vulnerabilities and inequalities. Pre-existing social injustices increase the sensitivity of affected individuals to change and limit their capacity to adapt or benefit from the interacting impacts of triple exposure. We argue that external implementors cannot effectively and equitably achieve climate, economic, and conservation goals without prioritizing social justice and building general resilience. We therefore recommend that implementors: (1) address root causes of vulnerability, namely pre-existing social injustices; (2) use participatory systems approaches to improve understanding of local contexts and potential consequences of proposed initiatives; and (3) leverage inclusive partnerships to facilitate collaborative design and implementation. These strategies—applied together and adapted to local contexts—can support well-being, justice, and resilience within coastal communities experiencing rapid change. © 2023 Elsevier Inc.

Ecosystem services have become a dominant paradigm for understanding how people derive well-being from ecosystems. However, the framework has been critiqued for over-emphasizing the availability of services as a proxy for benefits, and thus missing the socially-stratified ways that people access ecosystem services. We aim to contribute to ecosystem services’ theoretical treatment of access by drawing on ideas from political ecology (legitimacy) and anthropology (entanglement). We hypothesize that where customary and modern forms of resource management co-exist, changes in customary institutions will also change people’s ability to and means of benefiting from ecosystem services, with implications for well-being. We ask a) what are the constellations of social, economic, and institutional mechanisms that enable or hinder access to a range of provisioning ecosystem services; and b) how are these constellations shifting as different elements of customary institutions gain or lose legitimacy in the process of entanglement with modernity? Through a qualitative mixed-methods case study in a coastal atoll community in Papua New Guinea, we identify key access mechanisms across the value chain of marine provisioning services. Our study finds the legitimacy of customary systems – and thus their power in shaping access – has eroded unevenly for some ecosystem services, and some people within the community (e.g. younger men), and less for others (e.g. women), and that different marine provisioning services are shaped by specific access mechanisms, which vary along the value chain. Our findings suggest that attention to entanglement and legitimacy can help ecosystem services approaches capture the dynamic and relational aspects of power that shape how people navigate access to resources in a changing world. We contend that viewing power as relational illuminates how customary institutions lose or gain legitimacy as they become entangled with modernity.

Ecosystem services have become a dominant paradigm for understanding how people derive well-being from ecosystems. However, the framework has been critiqued for over-emphasizing the availability of services as a proxy for benefits, and thus missing the socially-stratified ways that people access ecosystem services. We aim to contribute to ecosystem services’ theoretical treatment of access by drawing on ideas from political ecology (legitimacy) and anthropology (entanglement). We hypothesize that where customary and modern forms of resource management co-exist, changes in customary institutions will also change people’s ability to and means of benefiting from ecosystem services, with implications for well-being. We ask a) what are the constellations of social, economic, and institutional mechanisms that enable or hinder access to a range of provisioning ecosystem services; and b) how are these constellations shifting as different elements of customary institutions gain or lose legitimacy in the process of entanglement with modernity? Through a qualitative mixed-methods case study in a coastal atoll community in Papua New Guinea, we identify key access mechanisms across the value chain of marine provisioning services. Our study finds the legitimacy of customary systems – and thus their power in shaping access – has eroded unevenly for some ecosystem services, and some people within the community (e.g. younger men), and less for others (e.g. women), and that different marine provisioning services are shaped by specific access mechanisms, which vary along the value chain. Our findings suggest that attention to entanglement and legitimacy can help ecosystem services approaches capture the dynamic and relational aspects of power that shape how people navigate access to resources in a changing world. We contend that viewing power as relational illuminates how customary institutions lose or gain legitimacy as they become entangled with modernity.

Efforts to confront the challenges of environmental change and uncertainty include attempts to adaptively manage social–ecological systems. However, critical questions remain about whether adaptive management can lead to sustainable outcomes for both ecosystems and society. Here, we make a contribution to these efforts by presenting a 16-y analysis of ecological outcomes and perceived livelihood impacts from adaptive coral reef management in Papua New Guinea. The adaptive management system we studied was a customary rotational fisheries closure system (akin to fallow agriculture), which helped to increase the biomass of reef fish and make fish less wary (more catchable) relative to openly fished areas. However, over time the amount of fish in openly fished reefs slowly declined. We found that, overall, resource users tended to have positive perceptions about this system, but there were negative perceptions when fishing was being prohibited. We also highlight some of the key traits of this adaptive management system, including 1) strong social cohesion, whereby leaders played a critical role in knowledge exchange; 2) high levels of compliance, which was facilitated via a “carrot-and-stick” approach that publicly rewarded good behavior and punished deviant behavior; and 3) high levels of participation by community actors.

Coastal ecosystems support the livelihoods and wellbeing of millions of people worldwide. However, the marine and terrestrial ecosystem services that coastal ecosystems provide are particularly vulnerable to global environmental change, as are the coastal communities who directly depend on them. To navigate these changes and ensure the wellbeing of coastal communities, policy-makers must know which coastal ecosystem services matter to whom, and why. Yet, in developing coastal settings, capturing people's perceptions of the importance of ecosystem services is challenging for several reasons. Firstly, coastal ecosystem services encompass both terrestrial and marine services across multiple categories (i.e. provisioning, supporting, and cultural) that are difficult to value together. Secondly, widely used monetary valuation techniques are often inappropriate because of culturally specific attributions of value, and the intangible nature of key cultural ecosystem services. Thirdly, people within communities may hold different ecosystem services values. In this paper, we examine how people ascribe and explain the importance of a range of marine and terrestrial ecosystem services in three coastal communities in Papua New Guinea. We use a mixed-methods approach that combines a non-monetary ranking and rating assessment of multiple ecosystem services, with a socio-economic survey (N = 139) and qualitative explanations of why ecosystem services matter. We find that people uniformly ascribe the most importance to marine and terrestrial provisioning services that directly support their livelihoods and material wellbeing. However, within communities, gender, wealth, and years of formal schooling do shape some differences in how people rate ecosystem services. In addition, although cultural ecosystem services were often rated lower, people emphasized that they ranked provisioning services highly, in part, because of their contribution to cultural values like bequest. People also

Efforts to confront the challenges of environmental change and uncertainty include attempts to adaptively manage social–ecological systems. However, critical questions remain about whether adaptive management can lead to sustainable outcomes for both ecosystems and society. Here, we make a contribution to these efforts by presenting a 16-y analysis of ecological outcomes and perceived livelihood impacts from adaptive coral reef management in Papua New Guinea. The adaptive management system we studied was a customary rotational fisheries closure system (akin to fallow agriculture), which helped to increase the biomass of reef fish and make fish less wary (more catchable) relative to openly fished areas. However, over time the amount of fish in openly fished reefs slowly declined. We found that, overall, resource users tended to have positive perceptions about this system, but there were negative perceptions when fishing was being prohibited. We also highlight some of the key traits of this adaptive management system, including 1) strong social cohesion, whereby leaders played a critical role in knowledge exchange; 2) high levels of compliance, which was facilitated via a “carrot-and-stick” approach that publicly rewarded good behavior and punished deviant behavior; and 3) high levels of participation by community actors.

Efforts to confront the challenges of environmental change and uncertainty include attempts to adaptively manage social–ecological systems. However, critical questions remain about whether adaptive management can lead to sustainable outcomes for both ecosystems and society. Here, we make a contribution to these efforts by presenting a 16-y analysis of ecological outcomes and perceived livelihood impacts from adaptive coral reef management in Papua New Guinea. The adaptive management system we studied was a customary rotational fisheries closure system (akin to fallow agriculture), which helped to increase the biomass of reef fish and make fish less wary (more catchable) relative to openly fished areas. However, over time the amount of fish in openly fished reefs slowly declined. We found that, overall, resource users tended to have positive perceptions about this system, but there were negative perceptions when fishing was being prohibited. We also highlight some of the key traits of this adaptive management system, including 1) strong social cohesion, whereby leaders played a critical role in knowledge exchange; 2) high levels of compliance, which was facilitated via a “carrot-and-stick” approach that publicly rewarded good behavior and punished deviant behavior; and 3) high levels of participation by community actors.