Ecological indicators for the nation / Committee to Evaluate Indicators for Monitoring Aquatic and Terrestrial Environments, Board on Environmental Studies and Toxicology [and] Water Science and Technology Board, Commission on Geosciences, Environment, and Resources, National Research Council.

Includes bibliographical references (pages 131-148) and index.

Scales and Applicability of Indicators -- Criteria for Evaluating Indicators -- The Committee's Conceptual Model for Choosing Indicators -- Policy Perspectives -- The Recommended Indicators -- Timing and Cost of Implementing the Committee's Recommendations -- Local and Regional Indicators -- Care and Handling of Environmental Data -- Research -- Why Are Ecological Indicators Needed? -- Key Ecological Processes and Products That People Value -- Establishing Baselines to Evaluate Trends -- Evaluating Indicators -- Realistic Expectations about the Value of Indicators -- The Empirical and Conceptual Foundations of Indicators -- Scientific Underpinnings of Indicators -- Using Multiple Approaches -- Historical and Paleoecological Data As Aids to Indicator Development -- Sources of Information about Current Ecological Processes -- Models to Assess Ecosystem Functioning -- The Committee's Conceptual Model for Choosing Indicators -- A Framework for Indicator Selection -- Criteria for Evaluating Indicators -- Information Handling and Calibration -- Data Quality Control, Archiving, and Assignment of Responsibilities -- Use of the Committee Framework -- Indicators for National Ecological Assessments -- The Extent and Status of the Nation's Ecosystems -- Indicators of Ecological Capital: A. Biotic Raw Materials -- Indicators of Ecological Capital: B. Abiotic Raw Materials -- Indicators of the Performance of the Nation's Ecosystems -- Indicators of Nutrient-Use Efficiency and Nutrient Balances in Agroecosystems -- Research Needs.

Print version record.

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