Endangered and Threatened Species of the Platte River

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The tension between wildlife protection under the Endangered Species Act and water management in the Platte River Basin has existed for more than 25 years. The Platte River provides important habitat for migratory and breeding birds, including three endangered or threatened species: the whooping crane, the northern Great Plains population of the piping plover, and the interior least tern. The leading factors attributed to the decline of the cranes are historical overhunting and widespread habitat destruction and, for the plovers and terns, human interference during nesting and the loss of riverine nesting sites in open sandy areas that have been replaced with woodlands, sand and gravel mines, housing, and roadways. Extensive damming has disrupted passage of the endangered pallid sturgeon and resulted in less suitable habitat conditions such as cooler stream flows, less turbid waters, and inconsistent flow regimes. Commercial harvesting, now illegal, also contributed to the decline of the sturgeon.

Endangered and Threatened Species of the Platte River addresses the habitat requirements for these federally protected species. The book further examines the scientific aspects of the U.S. Fish and Wildlife Service's instream-flow recommendations and habitat suitability guidelines and assesses the science concerning the connections among the physical systems of the river as they relate to species' habitats.

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Contenido

Summary
1
1 Introduction
19
2 Regional Context for Water and Species
32
3 Law Science and Management Decisions
73
4 Scientific Data for the Platte River Ecosystem
108
5 Whooping Crane
155
6 Piping Plover and Interior Least Tern
186
7 Pallid Sturgeon
225
8 Conclusions and Recommendations
240
References
258
Appendixes
277
Appendix B Bird Species of Conservation Concern in Nebraska
287
Appendix C Confirmed Whooping Crane Sightings in Central Platte River Study Area 19422003
291
Appendix D Input Data for Figures 56A and 56B
298
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Página 84 - Jeopardize the continued existence of means to engage in an action that reasonably would be expected, directly or indirectly, to reduce appreciably the likelihood of both the survival and recovery of a listed species in the wild by reducing the reproduction, numbers, or distribution of that species.
Página xviii - ... procedures and that all review comments were carefully considered. Responsibility for the final content of this report rests entirely with the authoring committee and the institution.
Página ix - Pollutants (1991) Rethinking the Ozone Problem in Urban and Regional Air Pollution (1991) Decline of the Sea Turtles (1990) Copies of these reports...
Página 5 - Critical habitat is (1) the specific areas within the geographical range occupied by a species, on which are found those physical or biological features essential to the conservation of the species...
Página 74 - ... simply does not provide the kind of management tools needed to act early enough to save a vanishing species. In particular, existing laws do not generally allow the Federal Government to control shooting, trapping, or other taking of endangered species.
Página 84 - Destruction or adverse modification" means a direct or indirect alteration that appreciably diminishes the value of critical habitat for both the survival and recovery of a listed species.
Página 75 - ESA, an endangered species is one that is in danger of extinction in all or a significant part of its range, and a threatened species is one that is likely to become endangered in the near future. The ESA prohibits the "take" of endangered species and threatened species for which protective regulations have been adopted.
Página 260 - The accompanying map shows the Trans-Mississippi territory during the period of the American fur trade as conducted from St. Louis between years 1807-1843 and includes the location of Indian tribes, trading posts, routes of travel and other features if interest. Father de Smet's travels are shown in red. The manuscript refers in several places to the Black Hills but this means the Black Hills of Wyoming (Laramie Mountains). He did not...
Página 79 - Critical habitat is not determinable when one or both of the following situations exist: (i) Information sufficient to perform required analyses of the impacts of the designation is lacking, or (ii) The biological needs of the species are not sufficiently well known to permit identification of an area as critical habitat.

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