This 4th edition updates the latest research on earthworms. More than 3,000 species of earthworm exist in the world. They are considered to be an important ally in advancing environmental and biomedical research. Earthworms play an important role in forest or agricultural ecosystems and play an increasing role in biomedical issues. Earthworms are critical to the environment because they consume huge quantities of decomposed litter, manure, and other organic matter deposited on soil -- helping to convert it into rich topsoil Earthworms can also help reduce soil compaction, improve permeability--thus providing channels for root growth, water infiltration, and gas exchange. Earthworms are also important animals for the assessment of the toxicity of chemicals, such as herbicides and pesticides, which are deliberately released into the environment. Earthworms are superb barometers' or sentinels' providing an early warning of deterioration in soil quality.

A unique look at how the adoption of sustainable farming methods is being pursued throughout the world. This comprehensive book provides clear insight into research and education needs and the many points of view that come to bear on the issue of sustainability. Essential for agricultural leaders in research, education, conservation, policy making, and anyone else interested in creating an economically and environmentally sustainable agriculture worldwide.

Since the publication of the highly-successful first edition of Earthworm Ecology, there were two international symposia and an increased number of publications on the subject, demanding a revision of the book that addresses the most rapidly developing areas of earthworm research. Earthworm Ecology, Second Edition updates the most comprehensive work available on earthworm ecology with extensive revisions of the original chapters. This well-illustrated, expansive study examines the important, and often overlooked, impact earthworms have on the environment. It discusses the impact of climate, soil properties, predation, disease and parasitism, and competition upon earthworm ecology. New chapters analyze the history of earthworm research, the importance of earthworms as representatives of soil fauna and how they affect plant growth, the effects of the invasion of exotic earthworms into North America and other regions, and vermiculture and vermicomposting in Europe and Asia. This new material makes this volume an essential reference work for soil scientists, agronomists, and others with a great interest in earthworms.

Co-edited by international earthworm expert Clive A. Edwards, Vermiculture Technology: Earthworms, Organic Wastes, and Environmental Management is the first international, comprehensive, and definitive work on how earthworms and microorganisms interact to break down organic wastes on a commercial basis. Many books cover the importance of composting for reducing the amount of organic wastes in landfills. This reference focuses on innovative vermiculture technology that turns organic waste into a value-added environmentally friendly products that can improve soil fertility and productivity on a large scale. Chronicles more than two decades of growth and changes in earthworm composting technologyBased on the work of an outstanding international cast of scientists, the book explores the dramatic growth and changes in vermiculture technology since 1988 and assesses advances made in government-funded projects in the United States and United Kingdom. The contributors discuss outdoor and indoor windrows, container systems, wedge systems, and low labor-requirement, fully-automated continuous flow vermicomposting reactor systems that can process more than 1000 tons of organic wastes per reactor per annum. They also highlight the science and biology behind the use and efficacy of vermicomposting, examine its importance to developing countries, and detail the technology of the past, present, and future. Although the development of a range of vermicomposting technologies has been rapid and the spread of vermicomposting dramatic, the scientific literature remains scattered throughout a range of journals, newsletters, and online resources. As a compilation of information designed specifically to have an extended shelf life, this volume chronicles how vermiculture can be brought into full commercial and industrial development and find application in integrated waste management systems.

This is the third edition of this popular text which reviews all aspects of earthworm biology and ecology. The book has been updated throughout and extensive additions made. These include a greatly expanded treatment of earthworm community ecology, interactions between earthworms and microorganisms, and the importance of earthworms in environmental management and their use in organic waste management. A straightforward and integrative approach has been taken to reviewing the literature of this important area (over 1400 references are cited). An extensive appendix has also been added summarizing the toxicity to earthworms of a wide range of chemicals. This book will continue to be an invaluable text for students of agriculture, soil science, ecology and invertebrate zoology.