Over the past decade, ecosystem services has become a familiar term. Definitions vary but the central idea is that society depends on and is enhanced by earth's resources. Concerns about natural resource depletion and degradation have motivated researchers to move from concept to operation and real-world change. Since the late 1990s, attention has been directed at characterizing the monetary value of ecosystem services to influence decision-making processes. This research has been dominated by the disciplines of ecology and economics with the underlying assumption that the integration of these disciplinary approaches will provide the necessary operational pathways forward. The perspectives of ecology and economics are crucial but the unique qualities of ecosystem services suggest the need to consider other approaches and a willingness to look beyond existing models and disciplinary boundaries. I propose a landscape approach to ecosystem services in which they play a role in the intentional coevolution of social/ ecological systems. I apply this approach to explore the potential for floodplain agricultural landscapes to provide ecosystem services in a 65,000 acre study area located in Oregon's agriculturally-dominated southern Willamette Valley. The landscape's biophysical processes are represented by three ecosystem services: non-structural flood storage, carbon sequestration and floodplain forest. These are quantitatively evaluated using a geographic information system. One aspect of the landscape's sociocultural processes is explored through qualitative interviews with farmers and profiles of the crops they commonly grow. The biophysical and sociocultural research components are integrated through an alternative futures framework to compare the ca. 2000 landscape with a 2050 future landscape in which agricultural production includes ecosystem services. In the 2050 landscape, the synthesis results show where all three ecosystem services are simultaneously provided on 2,981 acres, and where increases in carbon sequestration and floodplain forest are simultaneously provided on an additional 4,841 acres. For the identified acres, the annual income from present-day conventional crop production is provided as a first approximation of the monetary income that farmers would consider for producing ecosystem services.

Marine ecosystems and the ecosystem services they provide have declined dramatically over the last century. In principle, assessing ecosystem services and highlighting their value can help balancing marine conservation and socio-economic goals in environmental decision making. However, in particular for deep-sea ecosystem services many research gaps remain due to methodological challenges involved in their assessment. This thesis advances the research field by assessing economic non-market and non-use values of coastal and deep-sea biodiversity. Stated preference methods were applied along with a Delphi-based expert assessment. In the first choice experiment, participants were willing to pay between £70 and £77 annually for scenarios protecting deep-sea organisms and for medicinal products from deep-sea areas, an environment that participants were mostly unfamiliar with. The second stated preference survey with experienced marine users estimated a stewardship willingness to pay between £8.83 and £8.29 as one-off payments to protect marine sites from degradation. User-preferences were influenced by a broad range of marine habitats, accessibility and the presence of iconic species. The economic value of protected sites decreased when recreational users were excluded. In the third case study, an ecological method − the Ecosystem Principles Approach − was able to alleviate some uncertainties in submarine canyon ecosystem functioning. Ecosystem principles were developed that described spatial, temporal and causal links between processes, such as transportation processes, and important ecosystem services in submarine canyons. The stated preference case studies provide evidence for the less tangible economic trade-offs in protecting marine areas and partly answer the question of how ecosystem services can be assessed using economic tools to inform marine management priorities. The Ecosystem Principles Approach can help us to understand better how to move towards such management priorities.

Urban and regional development decisions have long-term, often irreversible impacts on the natural and built environment. These changes impact society’s wellbeing, yet rarely occur in the context of well understood economic costs and benefits. The cumulative effects of these individually small land use decisions are also very large. Ecological economics provides several frameworks that could inform more sustainable development patterns and practices, including ecosystem service valuation (ESV) and the Genuine Progress Indicator (GPI). This dissertation consists of a series of articles addressing urban and regional development from an ecological economic perspective, using GPI, ESV, and evaluation of tax and subsidy programs. The GPI has been well developed at the national level but is of growing interest to stakeholders and citizens interested in better measuring social welfare at local and regional scales. By integrating measures of built, human, social, and natural capital, GPI provides a more comprehensive assessment of social welfare than consumption-based macroeconomic indicators. GPI’s monetary basis allows these diverse metrics to be integrated, and can also facilitate intra- and inter-regional comparisons of social welfare. Ecosystem services are also increasingly recognized as important contributors to human well-being, particularly in areas where they are becoming scarce due to rapid land conversion. Despite recent advances in measuring and valuing ecosystem services, they are often not considered in decision making because of both scientific uncertainty and the difficulty in weighing these values in tradeoffs. Techniques to speed the valuation process while maintaining accuracy are thus in high demand. As public recognition of the value of ecosystem services grows, ESV can serve as the basis for a variety of policy tools, from inclusion in traditional permitting or conservation easement programs to new programs such as payments for ecosystem services. Ideally planners, citizens, and decision makers would better weigh the diverse costs and benefits of land use decisions as part of development and conservation planning. By quantifying changes in: 1) contributors to social welfare and 2) the value of ecosystem services across the urban-rural gradient, the GPI and ESV frameworks developed as part of this dissertation can thus be used to better inform local and regional policy and planning.

Two original computer simulation models are presented in this thesis. Although these models differ in their temporal, spatial, and structural dimensions, they are unified by a common purpose: to build quantitative understanding of environmental resources and better inform their future management. According to the U.S. Department of the Interior’s Minerals Management Service, there are significant undiscovered reserves of oil and natural gas located in the Gulf of Mexico Outer Continental Shelf region. While the existence of these energy resources is critical to the nation’s future economic well-being, of equal importance is the amount of already extracted energy that will be required to deliver the new fuel to society in a useful form; the difference between the two quantities is the net energy supply. “Energy return on investment” (EROI) is an indicator of the net productivity of an energy supply process; specifically, it is the ratio of gross energy production to total, direct plus indirect, energy cost. Chapter 1 describes a dynamic model designed to calculate the EROI of offshore energy extraction in the U.S. Gulf of Mexico from 1985 to 2004 under differing assumptions regarding energy cost and technology. In 2004, the EROI of the process is estimated to range from 10 to 25 depending on how comprehensively energy costs are defined. In comparison, the EROI of U.S. onshore petroleum extraction in the 1930s was at least 100. Ecosystem services are those functions of ecosystems that support, directly or indirectly, human welfare. Although interest in ecosystem services has surged in recent decades and is currently still on the rise, these phenomena have yet to be universally quantified. The current Multi-scale, Integrated Models of Ecosystem Services (MIMES) project is an ambitious attempt to do so through dynamic, spatially explicit modeling. As a part of this broad initiative, Chapter 2 details the development and testing of a model designed to measure and map the ecosystem service “water regulation” at multiple scales. The model is an extension of the well known and widely used “runoff curve number” method originally developed by the U.S. Department of Agriculture; it is applied to the Winooski watershed (Vermont, U.S.A.) and to the entire globe.

Ecosystem services are the benefits people obtain from ecosystems. Ecosystem service valuation (ESV) is the process of assessing the contributions of ecosystem services to human well-being. Its goal is to express the effects of changes in ecosystem services in terms of trade-offs against other things that also support human welfare. Ecologists tend to use biophysical-based methods while economists have developed preference-based tools for ESV. In this dissertation I attempt to bridge these two worlds by writing six papers using methods and insights from both disciplines. In paper 1, my coauthors and I (thereafter “we”) reviewed (1) what has been done in ESV research in the last 45 years; (2) how it has been used in ecosystem management; and (3) prospects for the future. One conclusion is that researchers and practitioners will have to transcend disciplinary boundaries and synthesize methodologies and tools from various disciplines in order to meet the challenge of ecosystem service valuation and management. Ninety-four peer-reviewed environmental economic studies were used to value ecosystem services in the State of New Jersey in paper 2. We translated each benefit estimate into 2004 US dollars per acre per year, computed the average value for a given eco-service for a given ecosystem type, and multiplied the average by the total statewide acreage for that ecosystem. The total value of these ecosystem services was estimated as $11.6 billion/year and we believe that this result is conservative. This aggregate value of New Jersey’s ecosystem services is a useful, albeit imperfect, basis for assessing and comparing these services with conventional economic goods and services. In paper 3 we present a conceptual framework for non-market valuation of ecosystem services provided by coastal and marine systems and review the peer-reviewed literature in this area. Next we selected a subset of this literature and conducted the first meta-analysis of the ecosystem service values provided by the costal and nearshore marine systems in paper 4. Using regression we found that over 75% of the variation in willingness to pay (WTP) for coastal ecosystem services could be explained. Our metaregression models also predicted out-of-sample WTPs and showed that the overall average transfer error was 24%, with 40% of the sample having transfer errors of 10% or less, and only 2.5% of predictions having transfer errors of over 100%. In the final two papers our focus is on the linkage between biodiversity and ecosystem function (BEF) which connects ecosystems with human welfare. In paper 5 we first present an overview of the main concepts and findings from a decade of the BEF literature. After a discussion on how agrobiodiversity relates to stability and resilience in agricultural systems at both the species and the landscape scales, we conclude with observations on the research needs in assessing the BEF relationship and the implications for agrobiodiversity ESV research. Finally, in paper 6, by using multiple regression analysis at the site and ecoregion scales in North America, we estimated relationships between biodiversity (using plant species richness as a proxy) and Net Primary Production (NPP, as a proxy for ecosystem services). We tentatively conclude that a 1% change in biodiversity in the high temperature range (which includes most of the world’s biodiversity) corresponds to approximately a 1/2% change in the value estimate of ecosystem services.

Thesis (Ph.D.)--University of Vermont, 2009. / Includes bibliographical references (leaves 233-239).

This thesis applies mixed ethnographic methods at field sites in British Columbia and the United Nations to explore the spread and uptake of the "ecosystem services" idea in different institutions of environmental governance. I explore intensifying efforts by ecosystem services proponents to rearticualte living nature in various ways and with various objectives around the concept. As the idea manifests in a wide array of different policies and practices, I attempt to characterize a process of 'discursive refraction,' and argue ecosystem services represents a kind of chimera, appearing differently to the disparate practitioners interpreting, responding to, and beginning to use it. Consequently, the idea takes on diverse forms and functions in those institutional settings where it appears. I conclude that the discourse of ecosystem services remains a locus of ongoing contestation, which significantly complicates the relationship between what its proponents intend for it, and its ideological, institutional, and ecological consequences.

This thesis applies mixed ethnographic methods at field sites in British Columbia and the United Nations to explore the spread and uptake of the "ecosystem services" idea in different institutions of environmental governance. I explore intensifying efforts by ecosystem services proponents to rearticualte living nature in various ways and with various objectives around the concept. As the idea manifests in a wide array of different policies and practices, I attempt to characterize a process of 'discursive refraction,' and argue ecosystem services represents a kind of chimera, appearing differently to the disparate practitioners interpreting, responding to, and beginning to use it. Consequently, the idea takes on diverse forms and functions in those institutional settings where it appears. I conclude that the discourse of ecosystem services remains a locus of ongoing contestation, which significantly complicates the relationship between what its proponents intend for it, and its ideological, institutional, and ecological consequences.

“Payments for ecosystem services” (PES) represents a new form of environmental governance rooted in the logics of capitalist economics. As such, PES frequently produces new conceptions and material forms of nature that embody the principles of neoliberal ideology. This thesis explores the processes by which these policies have been deployed and taken root in Costa Rica, one of the foremost sites of financialized conservation worldwide. It provides a historical account of policy formation and the neoliberalization of Costa Rican nature. I situate this analysis in a critique of capitalist logic, explaining the particular type of neoliberalization that emerges as a consequence of capital's own internal contradictions. I place particular emphasis on ideological inconsistencies in the deployment of neoliberal ideals while highlighting the justice implications that inevitably still emerge. I do so by adopting a critical political-ecology perspective that sees questions of environmental management as fundamental questions of social and environmental justice – how are conservation mechanisms designed, by whom, for what purposes, and to whose ultimate benefit? Specifically, I consider three aspects of neoliberalization in Costa Rica's national Pagos por Servicios Ambientales (PSA) program: the design of a new market-like financing mechanism; the promotion of individualized contracting and participation; and the expansion of exclusionary land management practices. I show that these actions produce the conditions for uneven development, facilitate the consolidation of control over resources, and enable the accumulation of benefits among larger, wealthier landowners. I further explore conceptual understandings of neoliberalism (as ideology or process) and address the growing concern in the critical literature with ways that policy deviates from doctrine. I explain that such an emphasis on ideologically divergent practice distracts from the material and justice effects of encroaching neoliberalization, which invariably operates in partial and unfinished ways. Finally, I revisit the role of the internal contradictions of capital in producing the patterns of governance that constitute this era of neoliberal environmentalism.

Biodiversity and ecosystem service losses driven by land-use change are expected to intensify as a growing and more affluent global population requires more agricultural and forestry products, and teleconnections in the global economy lead to increasing remote environmental responsibility. By combining global biophysical and economic models, we show that, between the years 2000 and 2011, overall population and economic growth resulted in increasing total impacts on bird diversity and carbon sequestration globally, despite a reduction of land-use impacts per unit of gross domestic product (GDP). The exceptions were North America and Western Europe, where there was a reduction of forestry and agriculture impacts on nature accentuated by the 2007-2008 financial crisis. Biodiversity losses occurred predominantly in Central and Southern America, Africa and Asia with international trade an important and growing driver. In 2011, 33% of Central and Southern America and 26% of Africa's biodiversity impacts were driven by consumption in other world regions. Overall, cattle farming is the major driver of biodiversity loss, but oil seed production showed the largest increases in biodiversity impacts. Forestry activities exerted the highest impact on carbon sequestration, and also showed the largest increase in the 2000-2011 period. Our results suggest that to address the biodiversity crisis, governments should take an equitable approach recognizing remote responsibility, and promote a shift of economic development towards activities with low biodiversity impacts.