I am an environmental social scientist whose work draws on theories and methods from sociology and economics to contribute a better understanding of the human side of complex environmental problems. I have specialized expertise in social network science, and I apply this expertise to sustainability challenges facing coral reefs and other tropical ecosystems, while also making key disciplinary contributions.
I obtained my PhD in Natural Resources and Environmental Management from the University of Hawaii in 2015. Throughout my tenure in Hawaii, I held adjunct faculty appointments at the University of Hawaii and Hawaii Pacific University, where I developed and taught courses on the human dimensions of marine systems and quantitative social science methods. I also previously worked as a research associate on a large project analyzing ecosystem service values in small-scale fisheries in Madagascar, and as a research specialist in the Socioeconomics and Planning Group at NOAA’s Pacific Islands Fisheries Science Center in Honolulu, HI.
In 2015, I was awarded a prestigious U.S. National Science Foundation Postdoctoral Research Fellowship to develop and apply an integrative network modelling framework to capture complex linkages in coral reef social-ecological systems (2015 – 2018; ~AUD $208,500). During this time to I held a visiting scholarship at the ARC Centre of Excellence for Coral Reef Studies, where I am I now formally based as a Senior Social Science Research Fellow in the People and Ecosystems Group. In 2018 I was awarded an early career research fellowship (DECRA) from the Australian Research Council to study how social networks and power shape adaptive action (2019 – 2021; $370,000).
Barnes Lab: Social Dynamics and the Environment
My research program draws heavily on sociology and economics and incorporates insights from social-ecological systems theory to analyze social dynamics in environmental systems and how they relate to the sustainable use and governance of environmental resources. I have specialized expertise in social network science, and my lab and I work on highly interdisciplinary projects that draw on this expertise to elucidate how complex interactions between people and ecosystems can enable or inhibit sustainability outcomes. We also contribute to advancing network theory and methods. Most of our empirical work focuses on tropical marine and coastal systems. In this context, we work to achieve actionable insights to improve environmental governance through the use of social network analysis, quantitative modeling, experiments, economic valuation, and qualitative insight, and by working closely with a range of other social scientists, economists, ecologists, biologists, mathematicians, policymakers, and conservation and development practitioners.
Our current research focuses on three broad themes:
(1) Social networks, social capital, and environmental outcomes: Understanding how social dynamics drive outcomes in environmental systems is critical to advancing global sustainability. To meet this challenge, this body of work focuses on basic theories of social organization and how different patterns of social structure and social capital relate to outcomes in environmental systems. Investigations into social organization focus on different types of social networks at both small and large scales, include inquires related to network formation and function, and often focus on issues of sociocultural diversity. We investigate social, ecological, and economic outcomes at both the micro and macro level. Past projects have focused on cooperation and collaboration, sociocultural diversity, collective action, fisher profitability, and shark bycatch. This work has been supported by the U.S. National Science Foundation (NSF), NOAA’s Pacific Islands Fisheries Science Center, the Joint Institute for Marine and Atmospheric Research, and the ARC CoE for Coral Reef Studies, and has appeared in journals such as Proceedings of the National Academy of Sciences, Social Networks, Ecology and Society, Ecological Economics, and Environmental Management. Current work in this area focuses on social influence and diffusion (see our recent paper in Biological Conservation), adaptation and transformation (see our recent papers in Ecology and Society and Nature Climate Change), fish biomass and functional richness, and human well-being.
(2) Social-ecological linkages and feedbacks: This body of work extends my first research theme to explicitly account for the linkages and feedbacks between social and ecological structures. In this era of unprecedented anthropogenic stress on natural capital essential for supporting human wellbeing, we must have a strong understanding of the linkages and feedbacks between people and nature. This challenge is particularly relevant for coral reefs which continue to decline globally, threatening biodiversity and the basic life supporting services they provide to humanity (see our recent publication in Nature). In an effort toward meeting this challenge, I am involved in ongoing research initially funded by NSF and the ARC CoE for Coral Reef Studies that advances a novel interdisciplinary network modeling framework to assess how social-ecological interdependencies within and between fishing communities and fisheries resources mediate outcomes in co-managed coral reef ecosystems. This project involves both theoretical and comparative empirical work, and involves a diverse array of collaborators from the ARC Centre of Excellence for Coral Reef Studies, the Stockholm Resilience Center, CSIRO, University of Melbourne, University of Hawaii, Lancaster University, Exeter University, Bristol University, Conservation International, and the Wildlife Conservation Society. Learn more about this project here.
(3) Shark ecotourism, conservation, and management: Sharks play a critical role in marine ecosystems, yet many shark populations are under extreme pressure from shark finning and fishing. To address this, we draw on theory and methods from economics, political science, and psychology to investigate the effectiveness of shark conservation policies, the factors that affect individual attitudes and beliefs towards sharks, experiences that contribute to shark conservation behaviors, and the value of shark ecotourism. Results from this work have been published in Proceedings of the National Academy of Sciences and Oryx, and current work in collaboration with One Ocean Research exploring the role of shark ecotourism in conservation behavior has recently been published in Marine Policy (see our article in The Conversation about this work here).
- Emmanuel Mbaru (PhD): “Diffusion of a gear-based conservation innovation in coral reef fisheries”
- Shanna Grafeld (PhD): “Economic and structural power in small-scale fisheries markets”
- Amber Datta (PhD): “Cross-level catalysts and constraints: how key actors broker governance responses to environmental change”
- Sarah Sutcliffe (PhD): “Drivers and deviance: food and nutrition security in small-scale fisheries”
- Diego Salgueiro (Visiting PhD student): “Small-scale fisheries and the role of connectivity in adaptation to climate change”
Cinner, J.E., Adger, N., Allison, E., Barnes, M.L., Brown, K., Cohen, P., Gelcich, S., Hicks, C., Hughes, T., Lau, J., Marshall, N, and T. Morrison. Building adaptive capacity in tropical coastal communities. (2018) Nature Climate Change 8, 117–123.
Barnes, M.L., Bodin, Ö., Guerrero, A. M., McAllister, R. J., Alexander, S.M., & Robins, G. The social structural foundations of adaptation and transformation in social-ecological systems. (2017). Ecology & Society 22(4):16. Invited manuscript for special issue “Beyond Social-Ecological Traps.”
Hughes T.P., Barnes, M.L., Bellwood, D.R., Cinner, J.E., Cumming, G.S., Jackson, J.B.C., Kleypas, J., van de Leemput, I., Lough, J., Morrison, T.H., Palumbi, S.R., van Nes E.H., & Scheffer, M. (2017). Coral reefs in the Anthropocence. Nature 546, 82-90.
Bodin, Ö., Barnes, M.L., McAllister, R.R.J., Rocha, J.C., and Guerrero, A.M. (2017). Social-ecological network approaches in interdisciplinary research: A response to Bohan et al. and Dee et al. Trends in Ecology and Evolution 32(8): 547-549.
Barnes, M.L., Arita, S., Kalberg, K., & Leung, P. (2017). When does it pay to cooperate? Strategic information sharing in the harvest of common-pool fishery resources. Ecological Economics, 131, 1-11.
Mbaru, E. & Barnes, M.L. (2017). Key players in conservation diffusion: Using social network analysis to identify critical injection points. Biological Conservation, 210, 222-232.
Barnes, M. L., Lynham, J., Kalberg, K., & Leung, P. (2016). Social networks and environmental outcomes. Proceedings of the National Academy of Sciences, 113, 6466-6471.
Barnes, M., Kalberg, K., Pan, M., & Leung, P. (2016). When is brokerage negatively associated with economic benefits? Ethnic diversity, competition, and common-pool resources. Social Networks, 45, 55-65.
Grafeld, S. L., Oleson, K. L., Barnes, M., C., Peng, Chan, C., & Weijerman, M. (2016). Divers’ Willingness to Pay for Improved Coral Reef Conditions in Guam: An Untapped Source of Funding for Management and Conservation? Ecological Economics 128, 202-213.
Lewison, R., Hobday, A. J., Maxwell, S., Hazen, E., Hartog, J. R., Dunn, D. C., Briscoe, D., Fosette, S., O’Keefe, C., Barnes, M., … & Abecassis, M. (2015). Dynamic ocean management: identifying the critical ingredients of dynamic approaches to ocean resource management. BioScience, 65(5), 486-498.
Barnes, M., Oleson, K. L., Brander, L. M., Zafindrasilivonona, B., Oliver, T. A., & van Beukering, P. (2015). Social capital as an ecosystem service: Evidence from a locally managed marine area. Ecosystem Services,16, 283-293.
Oleson, K. L., Barnes, M., Brander, L. M., Oliver, T. A., Van Beek, I., Zafindrasilivonona, B., & Van Beukering, P. (2015). Cultural bequest values for ecosystem service flows among indigenous fishers: A discrete choice experiment validated with mixed methods. Ecological Economics, 114, 104-116.
Barnes, M., Gray, S. A., Arita, S., Lynham, J., & Leung, P. (2015). What determines social capital in a social–ecological system? Insights from a network perspective. Environmental Management, 55(2), 392-410.
Barnes, M., Oleson, K. L., & Zafindrasilivonona, B. (2013). The total economic value of small-scale fisheries with a characterization of post-landing trends: An application in Madagascar with global relevance. Fisheries Research, 147, 175-185.
Cisneros-Montemayor, A. M., Barnes, M., Al-Abdulrazzak, D., Navarro-Holm, E., & Sumaila, U. R. (2013). Global economic value of shark ecotourism: implications for conservation. Oryx, 47(03), 381-388.
Barnes, M., Arita, S., Allen, S. D., Gray, S. A., & Leung, P. (2013). The influence of ethnic diversity on social network structure in a common-pool resource system: implications for collaborative management. Ecology and Society, 18(1), 23.