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… ‘upstream’ and finds an anthropocentric reason – land use, pollution, abstraction, livestock, introduced species, or … 2005a. Ecosystems and human well-being: wetland and water synthesis. World Resources Institute, Washington, DC. … provide tremendous economic benefits, for example: � Water supply (quantity and quality); � Fisheries (over two …

… by grazing and trampling. There may also be an effect on water bodies from the deposition of nutrients by roosting … native species), threats to public health in parks and water areas, and threats to air safety (a number of … on protection of the environment, such as certain types of pollution. In addition, with reference to the polluter-pays …