Population demography of northern spotted owls / Eric D. Forsman ... [et al.].

Format:

Book

Author/Creator:

Forsman, Eric D.

Contributor:

Forsman, Eric D.

Series:

Studies in avian biology ; no. 40.

Studies in avian biology ; no. 40

Language:

English

Subjects (All):

Northern spotted owl.

Bird populations.

Physical Description:

1 online resource (119 p.)

Edition:

1st ed.

Place of Publication:

Berkeley : University of California Press, c2011.

Language Note:

English

Summary:

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

Contents:

Frontmatter

CONTENTS

AUTHORS

ACKNOWLEDGMENTS

STUDY AREAS

FIELD METHODS

ANALYTICAL METHODS

WORKSHOP PROTOCOLS

RESULTS

DISCUSSION

SUMMARY, CONCLUSIONS, AND RECOMMENDATIONS

APPENDICES

LITERATURE CITED

INDEX

STUDIES IN AVIAN BIOLOGY

Notes:

"A Publication of the Cooper Ornithological Society."

Includes bibliographical references and index.

ISBN:

9786613278623

9781283278621

1283278626

9780520950597

0520950593

OCLC:

745865766