Identifying Proxy Sets in Multiple Linear Regression

Identifying Proxy Sets in Multiple Linear Regression PDF Author: Bruce Leigh Welch
Publisher:
ISBN:
Category : Abies grandis
Languages : en
Pages : 136

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Identifying Proxy Sets in Multiple Linear Regression

Identifying Proxy Sets in Multiple Linear Regression PDF Author: Bruce Leigh Welch
Publisher:
ISBN:
Category : Abies grandis
Languages : en
Pages : 136

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Research Paper INT.

Research Paper INT. PDF Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 242

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Natural Regeneration in Two Central Idaho Grand Fir Habitat Types

Natural Regeneration in Two Central Idaho Grand Fir Habitat Types PDF Author: Kathleen Geier-Hayes
Publisher:
ISBN:
Category : Abies grandis
Languages : en
Pages : 52

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Quantitative Methods for Conservation Biology

Quantitative Methods for Conservation Biology PDF Author: Scott Ferson
Publisher: Springer Science & Business Media
ISBN: 0387226486
Category : Science
Languages : en
Pages : 334

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Book Description
Quantitative methods are needed in conservation biology more than ever as an increasing number of threatened species find their way onto international and national “red lists. ” Objective evaluation of population decline and extinction probability are required for sound decision making. Yet, as our colleague Selina Heppell points out, population viability analysis and other forms of formal risk assessment are underused in policy formation because of data uncertainty and a lack of standardized methodologies and unambiguous criteria (i. e. , “rules of thumb”). Models used in conservation biology range from those that are purely heuristic to some that are highly predictive. Model selection should be dependent on the questions being asked and the data that are available. We need to develop a toolbox of quantitative methods that can help scientists and managers with a wide range of systems and that are subject to varying levels of data uncertainty and environmental variability. The methods outlined in the following chapters represent many of the tools needed to fill that toolbox. When used in conjunction with adaptive management, they should provide information for improved monitoring, risk assessment, and evaluation of management alternatives. The first two chapters describe the application of methods for detecting trends and extinctions from sighting data. Presence/absence data are used in general linear and additive models in Chapters 3 and 4 to predict the extinction proneness of birds and to build habitat models for plants.

Predicting Species Occurrences

Predicting Species Occurrences PDF Author: J. Michael Scott
Publisher: Island Press
ISBN: 9781597263054
Category : Science
Languages : en
Pages : 940

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Book Description
Predictions about where different species are, where they are not, and how they move across a landscape or respond to human activities -- if timber is harvested, for instance, or stream flow altered -- are important aspects of the work of wildlife biologists, land managers, and the agencies and policymakers that govern natural resources. Despite the increased use and importance of model predictions, these predictions are seldom tested and have unknown levels of accuracy.Predicting Species Occurrences addresses those concerns, highlighting for managers and researchers the strengths and weaknesses of current approaches, as well as the magnitude of the research required to improve or test predictions of currently used models. The book is an outgrowth of an international symposium held in October 1999 that brought together scientists and researchers at the forefront of efforts to process information about species at different spatial and temporal scales. It is a comprehensive reference that offers an exhaustive treatment of the subject, with 65 chapters by leading experts from around the world that: review the history of the theory and practice of modeling and present a standard terminology examine temporal and spatial scales in terms of their influence on patterns and processes of species distribution offer detailed discussions of state-of-the-art modeling tools and descriptions of methods for assessing model accuracy discuss how to predict species presence and abundance present examples of how spatially explicit data on demographics can provide important information for managers An introductory chapter by Michael A. Huston examines the ecological context in which predictions of species occurrences are made, and a concluding chapter by John A. Wiens offers an insightful review and synthesis of the topics examined along with guidance for future directions and cautions regarding misuse of models. Other contributors include Michael P. Austin, Barry R. Noon, Alan H. Fielding, Michael Goodchild, Brian A. Maurer, John T. Rotenberry, Paul Angermeier, Pierre R. Vernier, and more than a hundred others.Predicting Species Occurrences offers important new information about many of the topics raised in the seminal volume Wildlife 2000 (University of Wisconsin Press, 1986) and will be the standard reference on this subject for years to come. Its state-of-the-art assessment will play a key role in guiding the continued development and application of tools for making accurate predictions and is an indispensable volume for anyone engaged in species management or conservation.

Monthly Catalog of United States Government Publications

Monthly Catalog of United States Government Publications PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 932

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Beyond Multiple Linear Regression

Beyond Multiple Linear Regression PDF Author: Paul Roback
Publisher: CRC Press
ISBN: 1439885400
Category : Mathematics
Languages : en
Pages : 436

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Book Description
Beyond Multiple Linear Regression: Applied Generalized Linear Models and Multilevel Models in R is designed for undergraduate students who have successfully completed a multiple linear regression course, helping them develop an expanded modeling toolkit that includes non-normal responses and correlated structure. Even though there is no mathematical prerequisite, the authors still introduce fairly sophisticated topics such as likelihood theory, zero-inflated Poisson, and parametric bootstrapping in an intuitive and applied manner. The case studies and exercises feature real data and real research questions; thus, most of the data in the textbook comes from collaborative research conducted by the authors and their students, or from student projects. Every chapter features a variety of conceptual exercises, guided exercises, and open-ended exercises using real data. After working through this material, students will develop an expanded toolkit and a greater appreciation for the wider world of data and statistical modeling. A solutions manual for all exercises is available to qualified instructors at the book’s website at www.routledge.com, and data sets and Rmd files for all case studies and exercises are available at the authors’ GitHub repo (https://github.com/proback/BeyondMLR)

Changes on Trails in the Selway-Bitterroot Wilderness, Montana, 1978-89

Changes on Trails in the Selway-Bitterroot Wilderness, Montana, 1978-89 PDF Author: David N. Cole
Publisher:
ISBN:
Category : Erosion
Languages : en
Pages : 716

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Gastrointestinal Immunity and Crosstalk with Internal Organs in Fish

Gastrointestinal Immunity and Crosstalk with Internal Organs in Fish PDF Author: Nan Wu
Publisher: Frontiers Media SA
ISBN: 2889716864
Category : Medical
Languages : en
Pages : 161

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Guide to U.S. Government Statistics

Guide to U.S. Government Statistics PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1400

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Book Description
A directory of U.S. government statistics publications by issuing agency. Entries include GPO stock number, LC and Dewey classification, OCLC and ISSN numbers, and sometimes a description. Includes geographic index.