Ecological Indicators For The Nation

Environmental indicators, such as global temperatures and pollutant concentrations, attract scientists' attention and often make the headlines. Equally important to policymaking are indicators of the ecological processes and conditions that yield food, fiber, building materials and ecological "services" such as water purification and recreation. This book identifies ecological indicators that can support U.S. policymaking and also be adapted to decisions at the regional and local levels. The committee describes indicators of land cover and productivity, species diversity, and other key ecological processesâ€"explaining why each indicator is useful, what models support the indicator, what the measured values will mean, how the relevant data are gathered, how data collection might be improved, and what effects emerging technologies are likely to have on the measurements. The committee reviews how it arrived at its recommendations and explores how the indicators can contribute to policymaking. Also included are interesting details on paleoecology, satellite imagery, species diversity, and other aspects of ecological assessment. Federal, state, and local decision-makers, as well as environmental scientists and practitioners, will be especially interested in this new book.

Although the environment of North America is not dissected by political borders, Canada and the United States often measure environmental conditions and report on them using different indicators. This report examines the environmental indicators used by both nations, and based on analysis of current research into common methodologies used in national, regional and global environmental reporting, it goes on to draw lessons for the development of bilateral indicators to cover the North American region.

The fed. gov't. supports numerous data programs that assemble & analyze quantitative measures of the nation's environmental conditions & trends (known as indicators). Most of these data programs are housed in fed. agencies, & provide data used by decision makers from the private sector & by gov't. As fed. agencies take actions to improve the coverage & usefulness of these programs, it is equally important that the quality & avail. of existing data generated by these programs do not erode over time. This report reviewed 20 data programs to determine whether fed. agencies responsible for the programs anticipate that changes during FY 2005 & 2006 related to funding, shifting priorities, or other factors will affect the programs. Tables.

The field of ecosystem health explores the interactions between natural systems, human health, and social organization. As decision makers require a sound, modular approach to environmental management and sustainable development, ecosystem health assessment indicators are increasingly used across any number of applications. The Handbook of Ecologic

Continuing in the tradition of its bestselling predecessor, the Handbook of Ecological Indicators for Assessment of Ecosystem Health, Second Edition brings together world-class editors and contributors who have been at the forefront of ecosystem health assessment research for decades, to provide a sound approach to environmental management and sust

Ecological indicators address ecosystems structure and/or function and are commonly used to provide synoptic information about their state. Through quantitative representations of either the forces that steer ecosystems, responses to forcing functions, or of previous, current, or future states of an ecosystem, indicators are expected to reveal conditions and trends that will help in development planning and decision making processes. Ecological indicators combine numerous environmental factors in a single value, which may be useful in terms of management and in the development of ecological concepts, compliant with the general public's understanding. Nevertheless, their application is not exempt of criticisms, the first of which is that aggregation results in an oversimplification of the ecosystem under observation. Ecological indicators must therefore be handled following the right criteria and in situations that are consistent with its intended use and scope; otherwise they may drive to confusing interpretations of data.

Algae are an important component of aquatic benthic ecosystems because they reflect the health of their environment through their density, abundance, and diversity. This comprehensive and authoritative text is divided into three sections to offer complete coverage of the discussion in this field. The first section introduces the locations of benthic algae in different ecosystems, like streams, large rivers, lakes, and other aquatic habitats. The second section is devoted to the various factors, both biotic and abiotic, that affect benthic freshwater algae. The final section of the book focuses on the role played by algae in a variety of complex freshwater ecosystems. As concern over environmental health escalates, the keystone and pivotal role played by algae is becoming more apparent. This volume in the Aquatic Ecology Series represents an important compilation of the latest research on the crucial niche occupied by algae in aquatic ecosystems. Presents algae as the important player in relation to environmental health Prepared by leading authorities in the field Includes comprehensive treatment of the functions of benthic algae as well as the factors that affect these important aquatic organisms Acts as an important reference for anyone interested in understanding and managing freshwater ecosystems

The book covers a wide range of concepts pertaining to the sustainable development and successfully captures the inter-connectivity of environmental preservation and sustainable development. International Journal of Ecological Economics and Statistics . . . this book is authoritative, objective and essential reading for academics and policymakers concerned with the application of indicators of sustainable development. It takes great care to emphasize what has worked, what has not and what should be our future priorities for research; the combination of these features certainly sets it apart from some other texts in the field. Lee M. Stapleton, Journal of Environmental Planning and Management This book presents a comprehensive collection of essays from some of the world s leading experts, surveying and highlighting both the potential and the limitations of a number of indicators specifically designed to measure sustainable development. Illustrative applications are presented throughout in order to demonstrate the value of the approaches discussed. This book is highly recommended for all those who are interested in a better understanding of what sustainable development is and its likely associated indicators, and ultimately aims to contribute to a better foundation for public decision-making. Paulo A.L.D. Nunes, Venice International University, Cà Foscari University, Fondazione Eni Enrico Mattei, Venice, Italy and Vrije Universiteit, Amsterdam, The Netherlands Since the late 1980s and early 1990s, national governments have introduced a range of policy measures designed to steer their economies along a more sustainable path. Yet how are we to know how successful these have been? This significant new book discusses the ways in which sustainable development indicators can be improved in order to both assess the impact of past policies and avoid the repetition of previous failings. Covering a broad range of indicators relating to national accounts, aggregate welfare, natural capital, ecosystem health and human environment interactions, this volume provides an important assessment of the strengths and weaknesses of each. With contributions from some of the most eminent scholars in the field, the book competently analyses the various methods of measuring the sustainable development performance of nations, and suggests many ways in which these can be developed and improved. While the contributors might offer conflicting views, the message they convey is universal the quest for appropriate sustainable development indicators is critically important if we are ever to bring about a fairer, sustainable and more efficient world.