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Download On Site Evaluation Of The Suitability Of A Wetted Instream Habitat In The Middle Rio Grande New Mexico For The Rio Grande Silvery Minnow Hybognathus Amarus full books in PDF, epub, and Kindle. Read online On Site Evaluation Of The Suitability Of A Wetted Instream Habitat In The Middle Rio Grande New Mexico For The Rio Grande Silvery Minnow Hybognathus Amarus ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Peggy Sue Johnson
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.F/5 ( download)
Download or read book Water, Watersheds, and Land Use in New Mexico written by Peggy Sue Johnson and published by . This book was released on 2001 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : N.C. Stenseth
Publisher : Springer Science & Business Media
ISBN 13 : 9401123381
Total Pages : 359 pages
Book Rating : 4.4/5 (11 download)
Download or read book Animal Dispersal written by N.C. Stenseth and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: 4.1.1 Demographic significance Confined populations grow more rapidly than populations from which dispersal is permitted (Lidicker, 1975; Krebs, 1979; Tamarin et at., 1984), and demography in island populations where dispersal is restricted differs greatly from nearby mainland populations (Lidicker, 1973; Tamarin, 1977, 1978; Gliwicz, 1980), clearly demonstrating the demographic signi ficance of dispersal. The prevalence of dispersal in rapidly expanding populations is held to be the best evidence for presaturation dispersal. Because dispersal reduces the growth rate of source populations, it is generally believed that emigration is not balanced by immigration, and that mortality of emigrants occurs as a result of movement into a 'sink' of unfavourable habitat. If such dispersal is age- or sex-biased, the demo graphy of the population is markedly affected, as a consequence of differ ences in mortality in the dispersive sex or age class. Habitat heterogeneity consequently underlies this interpretation of dispersal and its demographic consequences, although the spatial variability of environments is rarely assessed in dispersal studies.
Author : Leah S. Glaser
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.3/5 (121 download)
Download or read book The San Juan-Chama Project written by Leah S. Glaser and published by . This book was released on 1998 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gene S. Helfman
Publisher : Island Press
ISBN 13 : 9781559635967
Total Pages : 0 pages
Book Rating : 4.6/5 (359 download)
Download or read book Fish Conservation written by Gene S. Helfman and published by Island Press. This book was released on 2007-07-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish Conservation offers, for the first time in a single volume, a readable reference with a global approach to marine and freshwater fish diversity and fishery resource issues. Gene Helfman brings together available knowledge on the decline and restoration of freshwater and marine fishes, providing ecologically sound answers to biodiversity declines as well as to fishery management problems at the subsistence, recreational, and commercial levels. Written in an engaging and accessible style, the book: considers the value of preserving aquatic biodiversity offers an overview of imperiled fishes on a taxonomic and geographic basis presents a synthesis of common characteristics of imperiled fishes and their habitats details anthropogenic causes of decline examines human exploitation issues addresses ethical questions surrounding exploitation of fishes The final chapter integrates topics and evaluates prospects for arresting declines, emphasizing the application of evolutionary and ecological principles in light of projected trends. Throughout, Helfman provides examples, explores case studies, and synthesizes available information from a broad taxonomic, habitat, and geographic range. Fish Conservation summarizes the current state of knowledge about the degradation and restoration of diversity among fishes and the productivity of fishery resources, pointing out areas where progress has been made and where more needs to be done. Solutions focus on the application of ecological knowledge to solving practical problems, recognizing that effective biodiversity conservation depends on meeting human needs through management that focuses on long term sustainability and an ecosystem perspective.
Author :
Publisher :
ISBN 13 :
Total Pages : 362 pages
Book Rating : 4.3/5 (555 download)
Download or read book Designation of Critical Habitat for the Rio Grande Silvery Minnow written by and published by . This book was released on 2003 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fritz L. Knopf
Publisher : Springer Science & Business Media
ISBN 13 : 1475727038
Total Pages : 329 pages
Book Rating : 4.4/5 (757 download)
Download or read book Ecology and Conservation of Great Plains Vertebrates written by Fritz L. Knopf and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: The frontier images of America embrace endless horizons, majestic herds of native ungulates, and romanticized life-styles of nomadie peoples. The images were mere reflections of vertebrates living in harmony in an ecosystem driven by the unpre dictable local and regional effects of drought, frre, and grazing. Those effects, often referred to as ecological "disturbanees," are rather the driving forces on which species depended to create the spatial and temporal heterogeneity that favored ecological prerequisites for survival. Alandscape viewed by European descendants as monotony interrupted only by extremes in weather and commonly referred to as the "Great American Desert," this country was to be rushed through and cursed, a barrier that hindered access to the deep soils of the Oregon country, the rich minerals of California and Colorado, and the religious freedom sought in Utah. Those who stayed (for lack of resources or stamina) spent a century trying to moderate the ecological dynamics of Great Plains prairies by suppressing fires, planting trees and exotic grasses, poisoning rodents, diverting waters, and homogenizing the dynamies of grazing with endless fences-all creating bound an otherwise boundless vista. aries in Historically, travelers and settlers referred to the area of tallgrasses along the western edge of the deciduous forest and extending midway across Kansas as the "True Prairie. " The grasses thlnned and became shorter to the west, an area known then as the Great Plains.
Author : Tate Dalrymple
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.3/5 (121 download)
Download or read book Flood-frequency Analyses written by Tate Dalrymple and published by . This book was released on 1960 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard L. Schroeder
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (91 download)
Download or read book Habitat Suitability Index Models and Instream Flow Suitability Curves written by Richard L. Schroeder and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 237 pages
Book Rating : 4.:/5 (163 download)
Download or read book Santa Fe National Forest Plan written by and published by . This book was released on 1987 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. L. Minckley
Publisher :
ISBN 13 :
Total Pages : 552 pages
Book Rating : 4.3/5 (5 download)
Download or read book Battle Against Extinction written by W. L. Minckley and published by . This book was released on 1991-12 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Garnett P. Williams
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.3/5 (121 download)
Download or read book Downstream Effects of Dams on Alluvial Rivers written by Garnett P. Williams and published by . This book was released on 1984 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jacques Ganoulis
Publisher : John Wiley & Sons
ISBN 13 : 3527636668
Total Pages : 381 pages
Book Rating : 4.5/5 (276 download)
Download or read book Transboundary Water Resources Management written by Jacques Ganoulis and published by John Wiley & Sons. This book was released on 2013-09-13 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on an international symposium addressing a key issue in global development, this reference includes both the latest methodologies for and practical examples of effective management of transboundary water resources. Its multidisciplinary approach combines hydrology and environmental science with economic and political approaches, in line with new UNESCO and EU recommendations, which have been formulated and implemented with the active involvement of all three editors. By providing a theoretical framework as well as abundant case studies from southern Europe, Africa, Asia and South America, this handbook provides hydrologists, geologists, engineers and decision-makers with all the knowledge they need for their daily work.
Author : United States. Department of Agriculture. Economic Research Service
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Economic Research Service in ... written by United States. Department of Agriculture. Economic Research Service and published by . This book was released on 1987 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 2 pages
Book Rating : 4.:/5 (319 download)
Download or read book Bull Trout written by and published by . This book was released on 1998 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : U. S. Army Corps of Engineers
Publisher :
ISBN 13 : 9781410218698
Total Pages : 188 pages
Book Rating : 4.2/5 (186 download)
Download or read book River Hydraulics written by U. S. Army Corps of Engineers and published by . This book was released on 2004-12-01 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual presents the techniques and procedures that are used to investigate and resolve river engineering and analysis issues and the associated data requirements. It also provides guidance for the selection of appropriate methods to be used for planning and conducting the studies. Documented herein are past experiences that provide valuable information for detecting and avoiding problems in planning, performing, and reporting future studies. The resolution of river hydraulics issues always requires prediction of one or more flow parameters; be it stage (i.e., water surface elevation), velocity, or rate of sediment transport. This manual presents pragmatic methods for obtaining data and performing the necessary computations; it also provides guidance for determining the components of various types of studies.
Author : David Lorence
Publisher :
ISBN 13 : 9780915809035
Total Pages : 1135 pages
Book Rating : 4.8/5 (9 download)
Download or read book Flora of the Marquesas Islands (set of Volumes 1 And 2) written by David Lorence and published by . This book was released on 2019-12-30 with total page 1135 pages. Available in PDF, EPUB and Kindle. Book excerpt: A project spanning over three decades has come to fruition with the publication of the Flora of the Marquesas Islands authored by David H. Lorence (NTBG) and Warren L. Wagner (Smithsonian Institution). This two volume, 1135 page opus is a complete account of all of the vascular plants found in the Marquesas Islands and was developed and written on a web site format. The Marquesas are a volcanic archipelago of 12 islands and numerous islets situated within the eastern part of French Polynesia, making it one of the most isolated groups of oceanic islands. This collaborative project between the National Tropical Botanical Garden, the Smithsonian Institution, and the Délégation à la Recherche de la Polynésie française is intended to further knowledge of the flora of this remote archipelago.Volume 1 (411 pages, published in December 2019) includes introductory chapters covering the project's history, Marquesas geology and climate, history of plant collecting in the islands, flora and vegetation, plant communities, threats to the flora, conservation status of species including IUCN Red List recommendations, critical conservation considerations, and many other aspects, as well as taxonomic treatments of the native and naturalized lycophytes (fern allies), ferns, and monocots. Volume 1 is richly illustrated with 134 figures including 111 color plates, 21 elegant line drawings by Smithsonian illustrator Alice Tangerini, and two maps. A complete list of all exsiccatae (specimens studied) is given in the Exsiccatae section. Volume 2 (722 pages, published in September 2020) covers the dicots, dicot exsiccatae, a list of cultivated plants, a list of all literature cited, and an index to both volumes. Volume 2 comprises is richly illustrated with 252 color figures and line drawings.
Author : Michael Sinclair
Publisher : University of Washington Press
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.:/5 (318 download)
Download or read book Marine Populations written by Michael Sinclair and published by University of Washington Press. This book was released on 1988 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
