Biological Environmental Impact Studies

Biological Environmental Impact Studies: Theory and Methods explains how an environmental impact study aimed at predicting biological changes can be approached and accomplished. It explores environmental impact studies from an ecosystem function point of view and highlights ecological tools and guidelines for use in biological studies in the context of environmental impact assessment. It also considers four general concepts of biological impact studies: synergy, experimental control and causality, measures of ecosystem change, and the interrelationships between structure, function, and time. Organized into seven chapters, this volume begins with an overview of environmental impact and environmental impact analysis, field surveys and their objectives, and mathematical modeling of biological systems. It then discusses time frames for ecological impacts; the role of field experiments and laboratory studies in environmental impact assessment; and common types of biological impact studies, including a study that investigated the impact of insecticides on the ecology of salt marshes in New Jersey and the effects of dredging, filling, and lagoon construction on tidal wetlands in Delaware. This book is a valuable resource for biologists, biology students, managers, and government agents interested in environmental impact assessment.

Preface 1 Environmental Impact Analysis I. What Is Environmental Impact? II. Environmental Impact Assessment III. Ecology in Environmental Impact Assessment IV. General Concepts for Biological Impact Studies V. Approaches to Biological Impact Studies References 2 The Field Survey: Preliminary System Analysis I. Field Survey Objectives II. System Structural Study III. System Functional Study IV. Temporal Changes in Structural and Functional Characteristics V. Decision Making after the Survey References 3 Modeling the System I. Objectives II. About Models and Modeling III. Step-by-Step Modeling References 4 The Field Experiment I. Introduction II. Experimental Systems III. Time as a Factor IV. Some Sampling Problems V. Use of Results References 5 Laboratory Studies I. Introduction II. Extrapolation from Laboratory Studies III. Physical Model Systems IV. Statistical Design of Laboratory Experiments V. Measurement of Toxicity References 6 Some Examples I. Common Types of Biological Environmental Impact Studies II. Some Comments on Effective Environmental Impact Studies III. Impact of Insecticides on Salt Marsh Ecology IV. Effects of Dredging, Filling, and Lagoon Construction on Tidal Wetlands in Delaware V. Effects of Spruce Budworm Control Measures References 7 Conclusions I. Sequence of Activities in Biological Impact Studies II. Meeting Existing Constraints Index