Resource-management decisions, especially in the area of protecting and maintaining biodiversity, are usually incremental, limited in time by the ability to forecast conditions and human needs, and the result of tradeoffs between conservation and other management goals. The individual decisions may not have a major effect but can have a cumulative major effect. Perspectives on Biodiversity reviews current understanding of the value of biodiversity and the methods that are useful in assessing that value in particular circumstances. It recommends and details a list of components-including diversity of species, genetic variability within and among species, distribution of species across the ecosystem, the aesthetic satisfaction derived from diversity, and the duty to preserve and protect biodiversity. The book also recommends that more information about the role of biodiversity in sustaining natural resources be gathered and summarized in ways useful to managers. Acknowledging that decisions about biodiversity are necessarily qualitative and change over time because of the nonmarket nature of so many of the values, the committee recommends periodic reviews of management decisions.

Economic valuation can help improve decisions about protecting the environment . By inputing values to unpriced goods, it can make public choices more cost-efficient and thus allow limited public income to be optimally spent.

Non-market valuation has become a broadly accepted and widely practiced means of measuring the economic values of the environment and natural resources. In this book, the authors provide a guide to the statistical and econometric practices that economists employ in estimating non-market values. The authors develop the econometric models that underlie the basic methods: contingent valuation, travel cost models, random utility models and hedonic models. They analyze the measurement of non-market values as a procedure with two steps: the estimation of parameters of demand and preference functions and the calculation of benefits from the estimated models. Each of the models is carefully developed from the preference function to the behavioral or response function that researchers observe. The models are then illustrated with datasets that characterize the kinds of data researchers typically deal with. The real world data and clarity of writing in this book will appeal to environmental economists, students, researchers and practitioners in multilateral banks and government agencies.

This book provides a systematic review of those economic approaches for valuing the environment and natural resources that use information on what people do, not what they say. The authors have worked on models of revealed preferences for valuing environmental and natural resources for several decades. The book provides a candid review of the major conceptual challenges and an exploration of neglected issues in the literature.

Nutrient recycling, habitat for plants and animals, flood control, and water supply are among the many beneficial services provided by aquatic ecosystems. In making decisions about human activities, such as draining a wetland for a housing development, it is essential to consider both the value of the development and the value of the ecosystem services that could be lost. Despite a growing recognition of the importance of ecosystem services, their value is often overlooked in environmental decision-making. This report identifies methods for assigning economic value to ecosystem servicesâ€"even intangible onesâ€"and calls for greater collaboration between ecologists and economists in such efforts.

When a group of liberal arts students embark on a university assignment about the natural environment, no one could have quite prepared them for the bewildering array of questions and provocations to confront them in their task. What starts out as an earnest attempt to understand nature in the modern world, turns into a philosophical and practical tangle that only a good transdisciplinary education can provide. Can anyone save the day and actually start to value 'nature'? And if they can't, then what's stopping them? The idea of 'valuing nature' harmonises diverse areas of natural resource management and is an important dimension of scientific and practical work concerned with managing ecosystems and habitats for sustainability. This graphic book takes the reader on an exploration of the issues that arise from this growing interest and concern in the valuation of nature. Set around the premise of a 'motley' group of undergraduates endeavouring to complete a university assignment on 'nature in the modern world', the book explores: the many and diverse meanings people assign to nature the different ways the relationship between people and nature might be characterised the many values systems people hold for the natural world the options and approaches society can deploy to manage it the extent to which we need entirely new economic systems to protect and sustain nature. This highly interdisciplinary book invites consideration of a range of philosophical and applied debates and questions. Written in an accessible style, it is an ideal undergraduate text in the fields of ecology, human and physical geography, conservation science, environment, social science and spatial planning, as well as a general primer for graduate natural and social scientists embarking on interdisciplinary research in the natural resource management arena.