Commission on Life Sciences & Committee on Noneconomic and Economic Value of Biodiversity 
Perspectives on Biodiversity [PDF ebook] 
Valuing Its Role in an Everchanging World

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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 componentsincluding 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.

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Ngôn ngữ Anh ● định dạng PDF ● Trang 168 ● ISBN 9780309520003 ● Nhà xuất bản National Academies Press ● Được phát hành 1999 ● Có thể tải xuống 3 lần ● Tiền tệ EUR ● TÔI 7146293 ● Sao chép bảo vệ Adobe DRM
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