A Benefit Transfer Estimation of Agro-Ecosystems Services

Environmental Economics and Policy,

Ecosystems Services of Tidal Shorelines

Rivers & Coast is a periodic publication of the Center for Coastal Resources Management, Virginia Institute of Marine Science. The goal of Rivers & Coast is to keep readers well informed of current scientific understanding behind key environmental issues related to watershed rivers and coastal ecosystems of the Chesapeake Bay

Status and Potential of Fisheries and Aquaculture in Asia and the Pacific 2006

This publication highlights the interconnectivity and linkages between coastal ecosystems (mangroves, coral reefs, seagrasses, estuaries, and lagoons) across environ-mental, economic, social, and management contexts. It presents innovative approaches to better understand, protect and value ecosystems services across linked habitats, informing the trade-off of different land-use management decisions and the effects on healthy systems from drawing on ecosystem services from linked habitats. This report presents further evidence of the need to develop appropriate economic and governance frameworks that best protect the essential services from natural ecosystems that human populations will need for the future

Ecosystems Services Valuation

Ecosystems are being characterised as goods and services to allow their valuation in monetary terms. This follows an orthodox economic approach to environmental values, but is also being undertaken by ecologists and conservation biologist. There appears a lack of clarity and debate as to the model of human behaviour, specific values and decision process being adopted. Arguments for ecosystems service valuation are critically appraised and the case for a model leading to value pluralism is presented. The outcome is to identify the need for value articulating processes which involve open deliberative judgment. In discussion of human motivations and judgement I make specific appeal to the works of philosopher Alan Holland

Ephemeral gullies and ecosystems services: Social and biophysical factors

This study measures soil loss from ephemeral gully (EG) channels, sediment delivery from a small watershed containing an EG, and compares those results to WEPP-generated results. A total of 79 metric tons of soil was observed to be lost in 2009 from 20 EG channels measured. For the 18 runoff events measured in a small watershed (0.35 ha) containing an EG, a total of 50 metric tons of sediment was delivered to the outlet. WEPP performed poorly at predicting soil loss and sediment delivery. In addition, the study examined factors contributing to the connectivity of EGs to stream networks. Canopy cover was the only measured factor positively and significantly correlated with EG connectivity, indicating that dense, rooted vegetation is important in stopping EGs. Finally, interviews with farmers of the study area suggested that maintenance/operating ease, an in-field conservation ethic, and local leadership were factors that influenced conservation-related management decisions

Exploit biodiversity in viticultural systems to reduce pest damage and pesticide use, and increase ecosystems services provision

Organic vineyards still rely on large external inputs to control harmful organisms (i.e., pests). BIOVINE will develop natural solutions based on plant diversity to control pests and reduce pesticide dependence. The capability of plants of increasing the ecosystem resistance to pests and invasive species is a well known ecosystem service. However, monocultures (including vineyards) do not exploit the potential of plant diversity. BIOVINE aims to develop new viticultural systems based on increased plant diversity within (eg, cover crops) and/or around (e.g., hedges, vegetation spots, edgings) vineyards by planting selected plant species for the control of arthropods, soil-borne pests (oomycetes, fungi, nematodes), and foliar pathogens. Candidate plants will be identified by literature review, and the selected ones will be tested in controlled environment or small-scale experiments. The ability of the selected plants to: i) attract or repel target arthropod pests; ii) conserve/promote beneficials; iii) control soil-borne pests by mean of biofumigation; iv) carry mycorrhizal fungi to vine root system to increase plant health (growth and resistance); v) control foliar pathogens by reducing the inoculum spread from soil, will be investigated. New viticultural systems able to exploit plant diversity will then be designed based on results of BIOVINE activities, following a design-assessment-adjustment cycle, which will then be tested by in-vineyard experiments in France, Italy, Romania, Spain and Switzerland for a 2-year period. Innovative viticultural systems should represent an improved way for pest control in organic viticulture, meanwhile they should positively affect functional biodiversity and ecosystem services. New control strategies may provide financial opportunities to vinegrowers and lower their reliance on pesticides

Learning from 20 Years of Payments for Ecosystem Services in Costa Rica

Costa Rica's Payments for Ecosystems Services (PES) programme has become something of an icon in the world of conservation. Its innovative blend of economic and regulatory instruments - and its hitches and successes - provide a valuable source of inspiration for other countries that are looking for effective ways to conserve and regenerate ecosystems. Since 1997, nearly one million hectares of forest in Costa Rica have been part of the PES programme at one time or another, and forest cover has now returned to over 50 per cent of the country's land area, from a low of just 20 per cent in the 1980s. What lessons can be learnt from the 20 years since it was founded? Also published in Spanish, this paper is for local practitioners, international researchers and donors who are interested in the Costa Rican experience

Re-establishing an Ecological Discourse in the Debate over the Value of Ecosystems and Biodiversity

The approach of conceptualizing biodiversity and ecosystems as goods and services to be represented by monetary values in policy is being championed not just by economists, but also by ecologists and conservation biologists. This new environmental pragmatism is now being pushed forward internationally under the guise of hardwiring biodiversity and ecosystems services into finance. This conflicts with the realisation that biodiversity and ecosystems have multiple incommensurable values. The current trend is to narrowly define a set of instrumental aspects of ecosystems and biodiversity to be associated with ad hoc money numbers. We argue that ecosystem science has more to offer the policy debate than pseudo-economic numbers based on assumptions that do not reflect ecological or social complexity. Re-establishing the ecological discourse in biodiversity policy implies a crucial role for biophysical indicators as policy targets e.g., the Nature Index for Norway. Yet there is a recognisable need to go beyond the traditional ecological approach to create a social ecological economic discourse. This requires reviving and relating to a range of alternative ecologically informed discourses (e.g. intrinsic values, deep ecology, ecofeminism) in order to transform the increasingly dominant and destructive relationship of humans separated from and domineering over Nature. (author's abstract)Series: SRE - Discussion Paper

Building the GLENCOE Platform -Grasslands LENding eConomic and ecOsystems sErvices

To feed the rising population whilst also preserving ecosystem functions, creative solutions are needed for the ecological intensification of natural grassland-based livestock systems. In Uruguay, natural grasslands are the main nutritional resource for livestock production. In these ecosystems, cattle and sheep graze together all the year round, and grasslands are frequently heavily grazed. Considerable research has been generated concerning grassland management, but there is still no knowledge about the impact of decision rules that supports management actions on long-term ecosystem functioning, at the system level. To meet this deficit, a participatory working group of farmers, researchers, and consultants have developed the GLENCOE platform. This platform is a large-scale facility, supported by INIA-Uruguay, designed to answer the following question: How to intensify the grazing management to improve the sustainability of livestock systems based on natural grasslands? To build the platform three steps were followed: (I) definition of the research problem using a problem tree analysis; (ii) conceptualization of the platform and the design of the grazing systems to be evaluated; and, (iii) spatial allocation of the grazing systems according to the variability of soil, slopes, and seasonal dynamic of vegetation indexes. These criteria were considered across farmlets that were equivalent in the initial stage, allowing causal inferences for the systems trajectories on productive and environmental traits. The platform is composed of three independent farmlets of 50 ha each, where multiparous Hereford cows and Merinos wethers co-graze under three grazing management systems. Each farmlet is managed according to different spatio-temporal decisions of the specific management of vegetation communities, grazing methods, and the stockpile of forage that is allowed by the number of the existing paddocks. Farmlet-1; comprises less decisions (2 paddocks), Farmlet-2; intermediate (8 paddocks), and Farmlet-3; high level of decisions (32 paddocks). This innovative platform will be used as a participatory and interdisciplinary space for research and co-learning of management on processes that can only be observed in long-term evaluations, and at farmlet scale. We expect that this new approach will contribute to the developement and implemention of sustainable grazing management systems in Uruguay