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Endangered Species Act Amendments of 1978 : ウィキペディア英語版 | Endangered Species Act Amendments of 1978
}} The Endangered Species Act (ESA) was first passed in 1973 and forms the basis of biodiversity and endangered species protection in the United States. The original purpose of the Endangered Species Act of 1973 was to prevent species endangerment and extinction due to the human impact on natural ecosystems.〔U.S. Congress (1979). “Endangered Species Act Amendments of 1978, Legislative History.” U.S. Code Congressional and Administrating News Volume 7. St. Paul, Minnesota: West Publishing Co.〕 The three most powerful sections of the ESA are Sections 4,7 and 9. Section 4 allows the Secretaries of Interior and Commerce to list species as threatened or endangered based on best available data.〔Petersen, Shannon (2002). (Acting for Endangered Species: The Statutory Ark. ) Lawrence, Kansas: University Press of Kansas.〕 Section 7 requires federal agencies to consult with Fish and Wildlife Service (FWS) or National Marine Fisheries Service (NMFS) before taking any action that may threaten a listed species.〔 Section 9 forbids the taking of an endangered species.〔 The first amendment to the ESA was passed by the 95th United States Congress in 1978 to "introduce some flexibility into the Endangered Species Act."〔 ==The snail darter==
The snail darter case was important for the ESA because it made Congress realize how powerful the ESA really was. In 1966, the Tennessee Valley Authority began construction on the Tellico Dam on the Little Tennessee River. For years, environmentalists tried to shut down the project, but their actions were unsuccessful until the discovery of the snail darter, a small fish that feeds off aquatic snails. The snail darter was listed as an endangered species in 1975 and part of the Little Tennessee River was designated as critical habitat.〔 The completion of the Tellico Dam threatened the survival of the snail darter, which was thought to be native only to the Little Tennessee River. In 1976, battle in the courts between the Tennessee Valley Authority and environmentalists began over the fate of the snail darter. Over the next three years, the decision was appealed all the way to the Supreme Court. In ''Tennessee Valley Authority v. Hill'' the U.S. Supreme Court ruled in favor of protecting the species "whatever the cost". The Endangered Species Act was clear in stating that no federal project should be exempt from the provisions of Section 7.〔
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