04770nam 2200973 a 450 991078121200332120230725050517.01-283-27862-697866132786230-520-95059-310.1525/9780520950597(CKB)2550000000039954(EBL)730036(OCoLC)745865766(SSID)ssj0000524939(PQKBManifestationID)11325124(PQKBTitleCode)TC0000524939(PQKBWorkID)10487847(PQKB)11423782(MiAaPQ)EBC730036(DE-B1597)521034(DE-B1597)9780520950597(Au-PeEL)EBL730036(CaPaEBR)ebr10482129(CaONFJC)MIL327862(EXLCZ)99255000000003995420101220d2011 uy 0engur|n|---|||||txtccrPopulation demography of northern spotted owls[electronic resource] /Eric D. Forsman ... [et al.]Berkeley University of California Pressc20111 online resource (119 p.)Studies in avian biology ;no. 40"A Publication of the Cooper Ornithological Society."0-520-27008-8 Includes bibliographical references and index.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 BIOLOGYThe 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. WhiteStudies in avian biology ;no. 40.Northern spotted owlBird populationsamerican birds.animals.avian biology.bird watching.ecology and birds.ecology literature.ecology research.endangered birds.endangered species.environment conservation.environmental conservation.environmental protection.environmentalists.exotic places.field biologists.going green.ornithology.owl conservation.owl populations.owls and environment.pacific northwest species.protecting our planet.science.scientists.species conservation.threatened species.western united states.zoology.Northern spotted owl.Bird populations.598.9/7Forsman Eric D1187738Forsman Eric D1187738MiAaPQMiAaPQMiAaPQBOOK9910781212003321Population demography of northern spotted owls3757270UNINA