Ecology of Bonytail and Razorback Sucker and the Role of Off-channel Habitats in Their Recovery PDF Download

Author: Gordon Mueller
Publisher:
ISBN:
Category : Bonytail
Languages : en
Pages : 76

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Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 304

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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 938

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Author: Michael Collier
Publisher:
ISBN:
Category : Chattahoochee River
Languages : en
Pages : 112

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Book Description
Outlines the role of science in restoring or otherwise altering unwanted downstream effects of dams, including eroding river banks, changes in waterfowl habitat, threats to safe recreational use, and the loss of river sand bars, examining seven selected areas of the country -- the upper Salt River in central Arizona; the Snake River in Idaho, Oregon and Washington; the Rio Grande in New Mexico and Texas; the Chattahoochee River in Georgia; the Platte River in Wyoming, Colorado and Nebraska; the Green River in Utah; and the Colorado River in Arizona -- to focus on specific downstream effects of dams and the management issues related to their operation.

Author: Harold M. Tyus
Publisher: CRC Press
ISBN: 1439858543
Category : Nature
Languages : en
Pages : 576

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Book Description
Written as a stand-alone textbook for students and a useful reference for professionals in government and private agencies, academic institutions, and consultants, Ecology and Conservation of Fishes provides broad, comprehensive, and systematic coverage of all aquatic systems from the mountains to the oceans. The book begins with overview discussions on the ecology, evolution, and diversity of fishes. It moves on to address freshwater, estuarine, and marine ecosystems and identifies factors that affect the distribution and abundance of fishes. It then examines the adaptations of fishes as a response to constraints posed in ecosystems. The book concludes with four chapters on applied ecology to discuss the critical issues of management, conservation, biodiversity crises, and climate change. Major marine fisheries have collapsed, and there are worldwide declines in freshwater fish populations. Fishery scientists and managers must become more effective at understanding and dealing with resource issues. If not, fish species, communities, and entire ecosystems will continue to decline as habitats change and species are lost. Ecology and Conservation of Fishes has taken a historical and functional approach to explain how we got where we are, providing old and new with a better foundation as ecologists and conservationists, and most importantly, it awakens senses of purpose and need. Past management practices are reviewed, present programs considered, and the need for incorporating principles of applied ecology in future practices is emphasized.

Author:
Publisher:
ISBN:
Category : Competition (Biology)
Languages : en
Pages : 76

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Author: W. L. Minckley
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 552

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Book Description
In 1962 the Green River was poisoned and its native fishes killed so that the new Flaming Gorge Reservoir could be stocked with non-native game fishes for sportsmen. This incident was representative of water management in the West, where dams and other projects have been built to serve human needs without consideration for the effects of water diversion or depletion on the ecosystem. Indeed, it took a Supreme Court decision in 1976 to save Devils Hole pupfish from habitat destruction at the hands of developers. Nearly a third of the native fish fauna of North America lives in the arid West; this book traces their decline toward extinction as a result of human interference and the threat to their genetic diversity posed by decreases in their populations. What can be done to slow or end this tragedy? As the most comprehensive treatment ever attempted on the subject, Battle Against Extinction shows how conservation efforts have been or can be used to reverse these trends. In covering fishes in arid lands west of the Mississippi Valley, the contributors provide a species-by-species appraisal of their status and potential for recovery, bringing together in one volume nearly all of the scattered literature on western fishes to produce a monumental work in conservation biology. They also ponder ethical considerations related to the issue, ask why conservation efforts have not proceeded at a proper pace, and suggest how native fish protection relates to other aspects of biodiversity planetwide. Their insights will allow scientific and public agencies to evaluate future management of these animal populations and will offer additional guidance for those active in water rights and conservation biology. First published in 1991, Battle Against Extinction is now back in print and available as an open-access e-book thanks to the Desert Fishes Council.

Author: Jim Gilbert (Ed. D.)
Publisher:
ISBN:
Category : Outdoor recreation
Languages : en
Pages : 242

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Book Description
This proceedings contains 16 papers on recreation and adventure programming, outdoor education, and outdoor leadership training. The papers are: (1) "Beyond Recreation: Our Classroom Is Wild America" (Barry Auskern); (2) "Outward Bound Leadership Model: An Exploratory Study of Leadership Variables" (Natalie L. Bartley); (3) "'Putting a Little Flavor in Your Outings!' Getting to Know the World of Edible and Useful Wild Plants" (Charles Chase); (4) "Risk Management in High Adventure Outdoor Pursuits" (Jerry Cinnamon); (5) "The Identification and Modification of Situational Fears Associated with Outdoor Recreation" (Alan Ewert); (6) "Outdoor Programming in the Southern United States" (Jim Gilbert and Wayne Taylor); (7) "Winter Wilderness Travel and Camping" (Norman Gilchrest); (8)"Environmental Activism, Public Education and Outdoor Programming: A Union of Necessity" (Terry Hartig and Peter Bowler); (9) "Technical Tree Climbing" (Peter Jenkins); (10) "Leadership: The Development of Self Concept" (Rick Matishak and Lyle Benson); (11) "Survey Compilation: Status and Concerns of the Outdoor Recreation Profession" (Rodney K. Neubert and Julian A. McPhee); (12) "Freshman Wilderness Orientation Programs: Model Programs across the Country" (Marty O'Keefe); (13) "Eagle Mount--Montana's Premiere Handicapped Outdoor Recreation Program" (Curt Shirer); (14) "Successfully Adapting Financially Subsidized Outdoor Programs to 'Pay Their Own Way' Programs" (Alf Skrastins); (15) "Passages: Helping College Students Matriculate through Outdoor Adventure" (Bob Stremba); and (16) "How To Successfully Change from a Financially Subsidized Outdoor Program to a Pays-Its-Own-Way Outdoor Program" (David J. Webb). Appendices include descriptions of conference presentations and events, a list of conference participants, and biographical information on presenters. (KS)

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 56

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Author: Bradley Garrett
Publisher: Simon and Schuster
ISBN: 1501188569
Category : Self-Help
Languages : en
Pages : 352

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Book Description
Since prehistory, bunkers have been built as protection from cataclysmic social and environmental forces, and as places of power and transformation. Today, the bunker has become the extreme expression of our greatest fears- from pandemics to climate change and nuclear war. And once you look, it doesn't take long to start seeing bunkers everywhere. In Bunker, acclaimed urban explorer and cultural geographer Bradley Garrett explores the global and rapidly growing movement of 'prepping' for social and environmental collapse, or 'Doomsday'. From the 'dread merchants' hustling safe spaces in the American mid-West to eco-fortresses in Thailand, from geoscrapers to armoured mobile bunkers, Bunker is a brilliant, original and never less than deeply disturbing story from the frontlines of the way we live now, an illuminating reflection on our age of disquiet and dread that brings it into new, sharp focus. The bunker, Garrett shows, is all around us, in malls, airports, gated communities, the vehicles we drive. Most of all, he shows, it's in our minds.