Number Of Plots Required For Measuring Productivity On Mountain Grasslands In Montana Classic Reprint
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Number Of Plots Required For Measuring Productivity On Mountain Grasslands In Montana Classic Reprint
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Author : W. F. Mueggler
language : en
Publisher: Forgotten Books
Release Date : 2018-03-17
Number Of Plots Required For Measuring Productivity On Mountain Grasslands In Montana Classic Reprint written by W. F. Mueggler and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-17 with Mathematics categories.
Excerpt from Number of Plots Required for Measuring Productivity on Mountain Grasslands in Montana The purpose of this Research Note is to show the relationship between sample size (number of plots) and precision of measuring production on 12 mountain grassland and shrubland habitat types2 common to western Montana. This information should help the range manager obtain a more realistic view of the validity of his production determinations on these and similar habitat-types, i. Information presented in table 1 was developed from data obtained during a study to determine forage productivity and variability on important habitat types. Ten of the 12 habitat types are represented by three stands selected to span the range in productivity potential for the respective habitat type; the remaining two habitat types are represented by only two stands in each. A sampling technique combining estimation (40 plots) and clipping (10 plots) was used to determine production. The 10 clipped - ft2 circular plots were randomly distributed within each stand. These clipped plots provided an estimate of the coefficient of variation (cv) by vegetation classes and species in each stand. The CV in turn forms the basis for determining the number of plots required to achieve given levels of sampling precision. The formula used to compute the number of plots (n) needed for the specified levels of sampling accuracy (freese 1967) shown in table 1 is. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Number Of Plots Required For Measuring Productivity On Mountain Grassland In Montana
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Author : W. F. Mueggler
language : en
Publisher:
Release Date : 1976
Number Of Plots Required For Measuring Productivity On Mountain Grassland In Montana written by W. F. Mueggler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Rangelands categories.
Number Of Plots Required For Measuring Productivity On Mountain Grassland In Montana
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Author : W. F. Mueggler
language : en
Publisher:
Release Date : 1976
Number Of Plots Required For Measuring Productivity On Mountain Grassland In Montana written by W. F. Mueggler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Rangelands categories.
Physiological Ecology Of North American Plant Communities
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Author : Brain F. Chabot
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Physiological Ecology Of North American Plant Communities written by Brain F. Chabot and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Although, as W.D. Billings notes in his chapter in this book. the development of physiological ecology can be traced back to the very beginnings of the study of ecology it is clear that the modern development of this field in North America is due in the large part to the efforts of Billings alone. The foundation that Billings laid in the late 1950s came from his own studies on deserts and subsequently arctic and alpine plants, and also from his enormous success in instilling enthusiasm for the field in the numerous students attracted to the plant ecology program at Duke University. Billings' own studies provided the model for subsequent work in this field. Physiological techniques. normally confined to the laboratory. were brought into the field to examine processes under natural environmental conditions. These field studies were accompanied by experiments under controlled conditions where the relative impact of various factors could be assessed and further where genetic as opposed to environmental influences could be separated. This blending of field and laboratory approaches promoted the design of experiments which were of direct relevance to understanding the distribution and abundance of plants in nature. Physiological mechanisms were studied and assessed in the context of the functioning of plants under natural conditions rather than as an end in itself.
A Guide To Habitats In Ireland
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Author : Julie A. Fossitt
language : en
Publisher: Heritage
Release Date : 2000
A Guide To Habitats In Ireland written by Julie A. Fossitt and has been published by Heritage this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Nature categories.
Measuring Biological Diversity
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Author : Anne E. Magurran
language : en
Publisher: John Wiley & Sons
Release Date : 2013-04-18
Measuring Biological Diversity written by Anne E. Magurran 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 2013-04-18 with Science categories.
This accessible and timely book provides a comprehensive overview of how to measure biodiversity. The book highlights new developments, including innovative approaches to measuring taxonomic distinctness and estimating species richness, and evaluates these alongside traditional methods such as species abundance distributions, and diversity and evenness statistics. Helps the reader quantify and interpret patterns of ecological diversity, focusing on the measurement and estimation of species richness and abundance. Explores the concept of ecological diversity, bringing new perspectives to a field beset by contradictory views and advice. Discussion spans issues such as the meaning of community in the context of ecological diversity, scales of diversity and distribution of diversity among taxa Highlights advances in measurement paying particular attention to new techniques such as species richness estimation, application of measures of diversity to conservation and environmental management and addressing sampling issues Includes worked examples of key methods in helping people to understand the techniques and use available computer packages more effectively
Conserving Africa S Mega Diversity In The Anthropocene
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Author : Joris P. G. M. Cromsigt
language : en
Publisher: Cambridge University Press
Release Date : 2017-03-02
Conserving Africa S Mega Diversity In The Anthropocene written by Joris P. G. M. Cromsigt and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-02 with Business & Economics categories.
This book synthesises key insights from a century of ecological research and monitoring efforts in one of Africa's oldest protected areas.
Invasive Species In Forests And Rangelands Of The United States
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Author : Therese M. Poland
language : en
Publisher: Springer Nature
Release Date : 2021-02-01
Invasive Species In Forests And Rangelands Of The United States written by Therese M. Poland and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-01 with Science categories.
This open access book describes the serious threat of invasive species to native ecosystems. Invasive species have caused and will continue to cause enormous ecological and economic damage with ever increasing world trade. This multi-disciplinary book, written by over 100 national experts, presents the latest research on a wide range of natural science and social science fields that explore the ecology, impacts, and practical tools for management of invasive species. It covers species of all taxonomic groups from insects and pathogens, to plants, vertebrates, and aquatic organisms that impact a diversity of habitats in forests, rangelands and grasslands of the United States. It is well-illustrated, provides summaries of the most important invasive species and issues impacting all regions of the country, and includes a comprehensive primary reference list for each topic. This scientific synthesis provides the cultural, economic, scientific and social context for addressing environmental challenges posed by invasive species and will be a valuable resource for scholars, policy makers, natural resource managers and practitioners.
Forgotten Grasslands Of The South
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Author : Reed F. Noss
language : en
Publisher: Island Press
Release Date : 2012-12-03
Forgotten Grasslands Of The South written by Reed F. Noss and has been published by Island Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-03 with Nature categories.
Forgotten Grasslands of the South is the study of one of the biologically richest and most endangered ecosystems in North America. In a seamless blend of science and personal observation, renowned ecologist Reed Noss explains the natural history of southern grasslands, their origin and history, and the physical determinants of grassland distribution, including ecology, soils, landform, and hydrology. In addition to offering fascinating new information about these little-studied ecosystems, Noss demonstrates how natural history is central to the practice of conservation. Although theory and experimentation have recently dominated the field of ecology, ecologists are coming to realize how these distinct approaches are not divergent but complementary, and that pursuing them together can bring greater knowledge and understanding of how the natural world works and how we can best conserve it. This long-awaited work sets a new standard for scientific literature and is essential reading for those who study and work to conserve the grasslands of the South as well as for everyone who is fascinated by the natural world.
The Nature Of Plant Communities
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Author : J. Bastow Wilson
language : en
Publisher: Cambridge University Press
Release Date : 2019-03-21
The Nature Of Plant Communities written by J. Bastow Wilson and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-03-21 with Nature categories.
Provides a comprehensive review of the role of species interactions in the process of plant community assembly.