Download e-book for kindle: Endangered and Threatened Species of the Platte River by National Research Council, Division on Earth and Life

By National Research Council, Division on Earth and Life Studies, Water Science and Technology Board, Board on Environmental Studies and Toxicology, Committee on Endangered and Threatened Species in the Platte River Basin

ISBN-10: 0309092302

ISBN-13: 9780309092302

ISBN-10: 0309532639

ISBN-13: 9780309532631

The strain among flora and fauna safety lower than the Endangered Species Act and water administration within the Platte River Basin has existed for greater than 25 years. The Platte River presents very important habitat for migratory and breeding birds, together with 3 endangered or threatened species: the whooping crane, the northern nice Plains inhabitants of the piping plover, and the inner least tern. The major elements attributed to the decline of the cranes are historic overhunting and frequent habitat destruction and, for the plovers and terns, human interference in the course of nesting and the lack of riverine nesting websites in open sandy components which have been changed with woodlands, sand and gravel mines, housing, and roadways. wide damming has disrupted passage of the endangered pallid sturgeon and ended in much less appropriate habitat stipulations equivalent to cooler flow flows, much less turbid waters, and inconsistent stream regimes. advertisement harvesting, now unlawful, additionally contributed to the decline of the sturgeon. "Endangered and Threatened Species of the Platte River" addresses the habitat necessities for those federally secure species. The publication extra examines the medical features of the U.S. Fish and natural world Service's instream-flow innovations and habitat suitability directions and assesses the technological know-how in regards to the connections one of the actual platforms of the river as they relate to species' habitats.

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Additional info for Endangered and Threatened Species of the Platte River

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Do current habitat conditions in the lower Platte (below the mouth of the Elkhorn River) affect the likelihood of survival of the pallid sturgeon? Do they limit (adversely affect) its recovery? SUMMARY 11 Current habitat conditions on the lower Platte River (downstream of the mouth of the Elkhorn River) do not adversely affect the likelihood of survival and recovery of the pallid sturgeon because that reach of the river appears to retain several habitat characteristics apparently preferred by the species: a braided channel of shifting sandbars and islands; a sandy substrate; relatively warm, turbid waters; and a flow regime that is similar to conditions that were found in the upper Missouri River and its tributaries before the installation of large dams on the Missouri.

Critical habitat for the whooping crane was designated in 1978. Only about 185 wild birds remain, and another 118 are in captivity. The northern Great Plains population of the piping plover was federally listed as threatened in 1986. Critical habitat for the piping plover was designated in 2002. The population on the Platte River was estimated in 2001 at about 85 nesting pairs. The number and extent of suitable nesting sites have declined with changes in magnitudes and frequency of river flows, flooding from local runoff, changes in vegetation, and human interference during nesting.

To assess the scientific validity of the methods used to develop instream-flow recommendations, the committee applied the criteria listed above, but focused more directly on the methods. For example, the committee considered whether the methods used were in wide use or generally accepted in the relevant field and whether sources of potential error in the methods have been or can be identified and the extent of potential error estimated. The committee acknowledges that none of the above criteria is decisive, but taken together they provide a good sense of the extent to which any conclusion or decision is supported by science.

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Endangered and Threatened Species of the Platte River by National Research Council, Division on Earth and Life Studies, Water Science and Technology Board, Board on Environmental Studies and Toxicology, Committee on Endangered and Threatened Species in the Platte River Basin

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