Optimum Timeframes For Detecting Songbird Vocalizations In The Black Hills
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Optimum Timeframes For Detecting Songbird Vocalizations In The Black Hills
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Author : Todd R. Mills
language : en
Publisher:
Release Date : 1998
Optimum Timeframes For Detecting Songbird Vocalizations In The Black Hills written by Todd R. Mills and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Forests and forestry categories.
Stream Channel Responses To Streamflow Diversion On Small Streams Of The Snake River Drainage Idaho
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Author : Carolyn C. Bohn
language : en
Publisher:
Release Date : 2000
Stream Channel Responses To Streamflow Diversion On Small Streams Of The Snake River Drainage Idaho written by Carolyn C. Bohn and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Forests and forestry categories.
The effects on channels of small, low-head seasonal water diversions in the Snake River drainage were investigated. Channels below small diversions were compared to the channels immediately above the same diversions to determine if differences in flow conveyance, substrate sediment size distribution, or streamside vegetation density were present. Estimates of flow conveyance were greater above the diversions, as measured by the area between the edges of vegetation on both banks, and by frequent-flow indicators, which generally approximated bankfull stage. No significant difference in substrate particle size or in channel roughness was found between channels above and below diversions. Although use histories of the diversions were not available, limited observations and conversations with users suggest that many of the diversion structures did not substantially divert high springtime flows so that passage of channel-forming flows probably occurred. Some diversion structures apparently divert or trap a portion of the bedload. Stem diameters of vegetation 6 to 48 inches above the ground were significantly larger above the diversions. Tests of stem densities were not significant. Stratification by substrate, season and size of diversion, community type, and source of summer water may be necessary to properly evaluate the effects of small diversions on vegetation stem density and vigor. The elevation of the edge of vegetation appears to be a viable alternative to frequent flow or bankfull indicators for estimating flow conveyance. It also addresses the question of vegetative encroachment into the channel. Use of the edge of vegetation as a channel feature for flow estimates merits further testing. It appears that the operation of the small forest stream diversions studied has not substantially altered most of the parameters studied. Past hydrographs and historical hydrologic data, however, are needed to fully evaluate the channel and vegetation responses.
Research Paper Rmrs
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Author :
language : en
Publisher:
Release Date : 1998
Research Paper Rmrs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Forests and forestry categories.
Monthly Catalog Of United States Government Publications
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Author :
language : en
Publisher:
Release Date : 2000-07
Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-07 with Government publications categories.
Bibliography Of Agriculture With Subject Index
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Author :
language : en
Publisher:
Release Date : 2000
Bibliography Of Agriculture With Subject Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Agriculture categories.
Confessions Of A Recovering Environmentalist And Other Essays
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Author : Paul Kingsnorth
language : en
Publisher: Graywolf Press
Release Date : 2017-08-01
Confessions Of A Recovering Environmentalist And Other Essays written by Paul Kingsnorth and has been published by Graywolf Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-01 with Literary Collections categories.
A provocative and urgent essay collection that asks how we can live with hope in “an age of ecocide” Paul Kingsnorth was once an activist—an ardent environmentalist. He fought against rampant development and the depredations of a corporate world that seemed hell-bent on ignoring a looming climate crisis in its relentless pursuit of profit. But as the environmental movement began to focus on “sustainability” rather than the defense of wild places for their own sake and as global conditions worsened, he grew disenchanted with the movement that he once embraced. He gave up what he saw as the false hope that residents of the First World would ever make the kind of sacrifices that might avert the severe consequences of climate change. Full of grief and fury as well as passionate, lyrical evocations of nature and the wild, Confessions of a Recovering Environmentalist gathers the wave-making essays that have charted the change in Kingsnorth’s thinking. In them he articulates a new vision that he calls “dark ecology,” which stands firmly in opposition to the belief that technology can save us, and he argues for a renewed balance between the human and nonhuman worlds. This iconoclastic, fearless, and ultimately hopeful book, which includes the much-discussed “Uncivilization” manifesto, asks hard questions about how we’ve lived and how we should live.
Nature S Music
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Author : Peter R. Marler
language : en
Publisher: Elsevier
Release Date : 2004-10-05
Nature S Music written by Peter R. Marler and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-10-05 with Nature categories.
The voices of birds have always been a source of fascination. Nature’s Music brings together some of the world’s experts on birdsong, to review the advances that have taken place in our understanding of how and why birds sing, what their songs and calls mean, and how they have evolved. All contributors have strived to speak, not only to fellow experts, but also to the general reader. The result is a book of readable science, richly illustrated with recordings and pictures of the sounds of birds. Bird song is much more than just one behaviour of a single, particular group of organisms. It is a model for the study of a wide variety of animal behaviour systems, ecological, evolutionary and neurobiological. Bird song sits at the intersection of breeding, social and cognitive behaviour and ecology. As such interest in this book will extend far beyond the purely ornithological - to behavioural ecologists psychologists and neurobiologists of all kinds. * The scoop on local dialects in birdsong * How birdsongs are used for fighting and flirting * The writers are all international authorities on their subject
Albion S Seed
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Author : David Hackett Fischer
language : en
Publisher: Oxford University Press
Release Date : 1991-03-14
Albion S Seed written by David Hackett Fischer and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-03-14 with History categories.
This fascinating book is the first volume in a projected cultural history of the United States, from the earliest English settlements to our own time. It is a history of American folkways as they have changed through time, and it argues a thesis about the importance for the United States of having been British in its cultural origins. While most people in the United States today have no British ancestors, they have assimilated regional cultures which were created by British colonists, even while preserving ethnic identities at the same time. In this sense, nearly all Americans are "Albion's Seed," no matter what their ethnicity may be. The concluding section of this remarkable book explores the ways that regional cultures have continued to dominate national politics from 1789 to 1988, and still help to shape attitudes toward education, government, gender, and violence, on which differences between American regions are greater than between European nations.
How I Became A Quant
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Author : Richard R. Lindsey
language : en
Publisher: John Wiley & Sons
Release Date : 2011-01-11
How I Became A Quant written by Richard R. Lindsey and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-01-11 with Business & Economics categories.
Praise for How I Became a Quant "Led by two top-notch quants, Richard R. Lindsey and Barry Schachter, How I Became a Quant details the quirky world of quantitative analysis through stories told by some of today's most successful quants. For anyone who might have thought otherwise, there are engaging personalities behind all that number crunching!" --Ira Kawaller, Kawaller & Co. and the Kawaller Fund "A fun and fascinating read. This book tells the story of how academics, physicists, mathematicians, and other scientists became professional investors managing billions." --David A. Krell, President and CEO, International Securities Exchange "How I Became a Quant should be must reading for all students with a quantitative aptitude. It provides fascinating examples of the dynamic career opportunities potentially open to anyone with the skills and passion for quantitative analysis." --Roy D. Henriksson, Chief Investment Officer, Advanced Portfolio Management "Quants"--those who design and implement mathematical models for the pricing of derivatives, assessment of risk, or prediction of market movements--are the backbone of today's investment industry. As the greater volatility of current financial markets has driven investors to seek shelter from increasing uncertainty, the quant revolution has given people the opportunity to avoid unwanted financial risk by literally trading it away, or more specifically, paying someone else to take on the unwanted risk. How I Became a Quant reveals the faces behind the quant revolution, offering you?the?chance to learn firsthand what it's like to be a?quant today. In this fascinating collection of Wall Street war stories, more than two dozen quants detail their roots, roles, and contributions, explaining what they do and how they do it, as well as outlining the sometimes unexpected paths they have followed from the halls of academia to the front lines of an investment revolution.
Edible Insects
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Author : Arnold van Huis
language : en
Publisher: Bright Sparks
Release Date : 2013
Edible Insects written by Arnold van Huis and has been published by Bright Sparks this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Conservation of natural resources categories.
Edible insects have always been a part of human diets, but in some societies there remains a degree of disdain and disgust for their consumption. Although the majority of consumed insects are gathered in forest habitats, mass-rearing systems are being developed in many countries. Insects offer a significant opportunity to merge traditional knowledge and modern science to improve human food security worldwide. This publication describes the contribution of insects to food security and examines future prospects for raising insects at a commercial scale to improve food and feed production, diversify diets, and support livelihoods in both developing and developed countries. It shows the many traditional and potential new uses of insects for direct human consumption and the opportunities for and constraints to farming them for food and feed. It examines the body of research on issues such as insect nutrition and food safety, the use of insects as animal feed, and the processing and preservation of insects and their products. It highlights the need to develop a regulatory framework to govern the use of insects for food security. And it presents case studies and examples from around the world. Edible insects are a promising alternative to the conventional production of meat, either for direct human consumption or for indirect use as feedstock. To fully realise this potential, much work needs to be done by a wide range of stakeholders. This publication will boost awareness of the many valuable roles that insects play in sustaining nature and human life, and it will stimulate debate on the expansion of the use of insects as food and feed.