Ecological indicators and surrogates are used widely by resource managers to monitor and understand complex biota and ecosystem processes. Their potential to guide complex resource management has meant they have been proposed for use in all ecosystems worldwide. Despite extensive research into indicators and surrogates, there remains much controversy about their use, in addition to major issues and knowledge gaps associated with their identification, testing and application. Indicators and Surrogates of Biodiversity and Environmental Change provides insights into the use of indicators and surrogates in natural resource management and conservation – where to use them, where not to use them, and how to use them. Using an ecological approach, the chapters explore the development, application and efficacy of indicators and surrogates in terrestrial, aquatic, marine and atmospheric environments. The authors identify current gaps in knowledge and articulate the future directions for research needed to close those gaps. This book is written by the world’s leading thinkers in the area of indicators and surrogates. It is the first major synthesis of learnings about indicators and surrogates and will be a critical resource for the vast number of people developing and applying them in ecosystems around the world. It will be an essential resource for scientists, policy makers and students with interests in surrogates and indicators.

The city of Pittsburgh and surrounding area of southwestern Pennsylvania face complex water quality problems, due in large part to aging wastewater infrastructures that cannot handle sewer overflows and stormwater runoff, especially during wet weather. Other problems such as acid mine drainage are a legacy of the region's past coal mining, heavy industry, and manufacturing economy. Currently, water planning and management in southwestern Pennsylvania is highly fragmented; federal and state governments, 11 counties, hundreds of municipalities, and other entities all play roles, but with little coordination or cooperation. The report finds that a comprehensive, watershed-based approach is needed to effectively meet water quality standards throughout the region in the most cost-effective manner. The report outlines both technical and institutional alternatives to consider in the development and implementation of such an approach.

In this important new work, Howard T. Odum, widely acknowledged as the father of systems ecology, lucidly explains his concept of emergy, a measure of real wealth that provides a rational, science-based method of evaluating commodities, services, and environmental goods. Using specific real-world examples, Dr. Odum clearly demonstrates the revolutionary role of emergy in environmental management and policy making. Environmental Accounting: Emergy and Environmental Decision Making offers environmental professionals—policymakers, managers, ecologists, planners, developers, and activists—a systematic approach to environmental and economic valuation that will eliminate much of the rancor and adversarial decision making that often plagues environmental issues. Specifically, this book: Describes the theoretical basis, calculation procedures, and applications of emergy Introduces the concept of "transformity," the ratio of emergy (work put into a product) and energy (value received from the product) Provides formulas for emergy calculations, procedures for making an emergy evaluation table, and parameters for updating evaluations Demonstrates the use of emergy to evaluate environments, minerals, waters, primary energy sources, economic developments, and international trade Compares the emergy approach to environmental evaluation with others Environmental Accounting: Emergy and Environmental Decision Making will help environmental decision makers and the society they serve maximize economic vitality with less trial and error, innovate with fewer failures, and adapt to change more rapidly. It provides the tools they need to arrive at the best policies in resource management, economics, and the environment. Balancing the economy and the environment— from the father of systems ecology Increasing economic dependence on diminishing natural resources has sparked a highly charged debate over the use and fate of the world environment. Environmental Accounting: Emergy and Environmental Decision Making presents a unique method of environmental management based on maximizing real wealth, the whole economy, and the public benefit. Renowned ecologist Howard T. Odum introduces the concept of emergy to provide a rational alternative to the tug-of-war over the world's most vital assets. Emergy measures the energy put into making a product and is the cornerstone of Odum's revolutionary text. This timely and important book offers key insights into: Determining the real value of a product or service Transformity, or the relationship between emergy (input) and energy (output) Stored wealth, available energy, and the final product Balancing economic and environmental needs Environmental Accounting: Emergy and Environmental Decision Making will help economists, ecologists, policymakers, and planners make more responsible, informed decisions to sustain economic and environmental development.

Although bats are often thought of as cave dwellers, many species depend on forests for all or part of the year. Of the 45 species of bats in North America, more than half depend on forests, using the bark of trees, tree cavities, or canopy foliage as roosting sites. Over the past two decades it has become increasingly clear that bat conservation and management are strongly linked to the health of forests within their range. Initially driven by concern for endangered species—the Indiana bat, for example—forest ecologists, timber managers, government agencies, and conservation organizations have been altering management plans and silvicultural practices to better accommodate bat species. Bats in Forests presents the work of a variety of experts who address many aspects of the ecology and conservation of bats. The chapter authors describe bat behavior, including the selection of roosts, foraging patterns, and seasonal migration as they relate to forests. They also discuss forest management and its influence on bat habitat. Both public lands and privately owned forests are considered, as well as techniques for monitoring bat populations and activity. The important role bats play in the ecology of forests—from control of insects to nutrient recycling—is revealed by a number of authors. Bat ecologists, bat conservationists, forest ecologists, and forest managers will find in this book an indispensable synthesis of the topics that concern them.