The Endangered Species Act (ESA) is a far-reaching law that has sparked intense controversies over the use of public lands, the rights of property owners, and economic versus environmental benefits. In this volume a distinguished committee focuses on the science underlying the ESA and offers recommendations for making the act more effective. The committee provides an overview of what scientists know about extinctionâ€"and what this understanding means to implementation of the ESA. Habitatâ€"its destruction, conservation, and fundamental importance to the ESAâ€"is explored in detail. The book analyzes: Concepts of speciesâ€"how the term "species" arose and how it has been interpreted for purposes of the ESA. Conflicts between species when individual species are identified for protection, including several case studies. Assessment of extinction risk and decisions under the ESAâ€"how these decisions can be made more effectively. The book concludes with a look beyond the Endangered Species Act and suggests additional means of biological conservation and ways to reduce conflicts. It will be useful to policymakers, regulators, scientists, natural-resource managers, industry and environmental organizations, and those interested in biological conservation.

The Endangered Species Act of 1973 (ESA) is one of the most cherished and reviled laws ever passed. It mandates protection and preservation of all the nation’s species and biodiversity, whatever the cost. It has been a lightning rod for controversy and conflicts between industry/business and environmentalists. The year 2023 marks the 50th anniversary of this law, and provides an opportunity for a measured and thorough evaluation thereof. We cannot know today’s challenges and opportunities without understanding their histories. This book is the most comprehensive history of the ESA ever published, and the first to consider the entire history of the law from all angles in a single volume. The history of the ESA has been one of increasing impact, complexity, and controversy. In 1978, the Supreme Court declared that Congress intended for the U.S. government to save all species at any cost, and thereafter application of the ESA became steadily more controversial, as seen in the example of the northern spotted owl and the timber wars in the Pacific Northwest in the late 1980s and early 90s, and then everywhere as the ESA became a political football in the highly partisan environment of the late 1990s and amendments to the law ceased. This book is not only a history, but a call to action. It will take more conservation, more funding, and more innovative solutions if we are to save our wildlife and biodiversity. It will take the engagement to every American to muster the collective will to meet this challenge. The hope of this book is that we will be able to look back and say that we accomplished more in the second 50 years of the ESA than we did in the first.

Annotation This 2nd volume contains an additional 500 descriptions and status reports on endangered animals and plants of the world. Reports are arranged taxonomically, by order, family, genus and species Each entry contains a description of the species, range and habitat information, population, history, conservation record and survival outlook.

The complex regulations of the Endangered Species Act can be challenging for environmental professionals who must comply with them or assist clients in compliance. This volume discusses the Act using clear scientific prose that all professionals can readily comprehend. It explores the history and the basic scientific theory underlying the Act. It provides an overview of its key provisions and examines the Act in the context of other key environmental planning statutes. The book also details the regulatory processes faced by other government agencies and private developers who must routinely ensure that their actions are in compliance.