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Author: Eric D. Forsman
Publisher: Univ of California Press
ISBN: 0520270088
Category : Medical
Languages : en
Pages : 120
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Book Description
Conclusions, and Recommendations P.75
Author: Eric Forsman
Publisher: Univ of California Press
ISBN: 0520950593
Category : Science
Languages : en
Pages : 119
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Book Description
The Northern Spotted Owl, a threatened species that occurs in coniferous forests in the western United States, has become a well-known environmental symbol. But how is the owl actually faring? This book contains the results of a long-term effort by a large group of leading researchers to document population trends of the Northern Spotted Owl. The study was conducted on 11 areas in the Pacific Northwest from 1985 to 2008, and its objectives were both to evaluate population trends and to assess relationships between reproductive rates and recruitment of owls and covariates such as weather, habitat, and the invasion of a closely related species, the Barred Owl. Among other findings, the study shows that fecundity was declining in five populations, stable in three, and increasing in three areas. Annual apparent survival rates of adults were declining in 10 out of 11 areas. This broad, synthetic work provides the most complete and up-to-date picture of the population status of this inconspicuous forest owl, which is at the center of the complex and often volatile debate regarding the management of forest lands in the western United States. Researchers: Steven H. Ackers Lawrence S. Andrews David R. Anderson Robert G. Anthony Brian L. Biswell Kenneth P. Burnham Peter C. Carlson Raymond J. Davis Lowell V. Diller Katie M. Dugger Eric D. Forsman Alan B. Franklin Elizabeth M. Glenn Scott A. Gremel Dale R. Herter J. Mark Higley James E. Hines Robert B. Horn Joseph B. Lint James D. Nichols Janice A. Reid James P. Schaberl Carl J. Schwarz Thomas J. Snetsinger Stan G. Sovern Gary C. White
Author: Eric D. Forsman
Publisher: Univ of California Press
ISBN: 0520270088
Category : Medical
Languages : en
Pages : 120
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Book Description
Conclusions, and Recommendations P.75
Author: Robert Gene Anthony
Publisher:
ISBN:
Category : Northern spotted owl
Languages : en
Pages : 52
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Book Description
"We analyzed demographic data from northern spotted owls (Strix occidentalis caurina) from 12 study areas in Washington, Oregon, California for 1985-2003. The purpose of our analyses was to provide an assessment of the status and trends of northern spotted owl populations throughout most of their geographic range"--Page 2.
Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 442
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Book Description
Author: James R. Duncan
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 664
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 918
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Book Description
Author: Brenda McComb
Publisher: CRC Press
ISBN: 1420070584
Category : Science
Languages : en
Pages : 300
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Book Description
In the face of so many unprecedented changes in our environment, the pressure is on scientists to lead the way toward a more sustainable future. Written by a team of ecologists, Monitoring Animal Populations and Their Habitats: A Practitioner’s Guide provides a framework that natural resource managers and researchers can use to design monitoring programs that will benefit future generations by distilling the information needed to make informed decisions. In addition, this text is valuable for undergraduate- and graduate-level courses that are focused on monitoring animal populations. With the aid of more than 90 illustrations and a four-page color insert, this book offers practical guidance for the entire monitoring process, from incorporating stakeholder input and data collection, to data management, analysis, and reporting. It establishes the basis for why, what, how, where, and when monitoring should be conducted; describes how to analyze and interpret the data; explains how to budget for monitoring efforts; and discusses how to assemble reports of use in decision-making. The book takes a multi-scaled and multi-taxa approach, focusing on monitoring vertebrate populations and upland habitats, but the recommendations and suggestions presented are applicable to a variety of monitoring programs. Lastly, the book explores the future of monitoring techniques, enabling researchers to better plan for the future of wildlife populations and their habitats. Monitoring Animal Populations and Their Habitats: A Practitioner’s Guide furthers the goal of achieving a world in which biodiversity is allowed to evolve and flourish in the face of such uncertainties as climate change, invasive species proliferation, land use expansion, and population growth.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 568
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Book Description
Author: Scott Weidensaul
Publisher: Houghton Mifflin Harcourt
ISBN: 0547840039
Category : Nature
Languages : en
Pages : 353
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Book Description
"With detailed information about identification, calls, habitat, breeding, nesting, and behavior, this reference guide has the most up-to-date information about natural history, taxonomy, biology, ecology, migration and conservation status."--Book jacket.
Author: Jared Verner
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 300
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Book Description
