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General Technical Report

Title: The California spotted owl: a technical assessment of its current status

Author: Verner, Jared; McKelvey, Kevin S.; Noon, Barry R.; Gutiérrez, R. J.; Gould Jr., Gordon I.; Beck, Thomas W., Technical Coordinators

Date: 1992

Source: Gen. Tech. Rep. PSW-GTR-133. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; 285 p.

Station ID: GTR-PSW-133

Description: This report is based an the Final Report submitted on May 8,1992 by the Technical Assessment Team to the Interagency Steering Committee for the California Spotted Owl Assessment. The 13 chapters cover the assessment of the current status of the California spotted owl, its biology and habitat use, and forest where the subspecies occurs in the Sierra Nevada and southern California. The report suggests the direction of future inventories and research, identifies projected trends in habitat, and offers guidelines and recommedations for management of the California spotted owl.

Key Words: Strix occidentalis occidentalis, habitat attributes, old-growth, resource management, Sierra Nevada, southern California

Front Matter

Cover and Table of Contents 881 KB

Acronyms 7 KB

Preface 19 KB

Part I: Where We Are Now, and Where We Should Go Next

Chapter 1: Assessment of the current status of the California spotted owl, with recommendations 260 KB
Verner, Jared; McKelvey, Kevin S.; Noon, Barry R.; Gutiérrez, R. J.; Gould Jr., Gordon I.; Beck , Thomas W.

Chapter 2: Future directions for the California spotted owl effort 68 KB
Jared Verner; Taylor, Robert J.

Part II: About the Owl

Chapter 3: Background and the current management situation for the California spotted owl 293 KB
Beck, Thomas W.; Gould Jr., Gordon I.

Chapter 4: The California spotted owl: general biology and ecological relations 955 KB
Verner, Jared; Gutiérrez, R. J.; Gould Jr., Gordon I.

Chapter 5: Habitat relations on the California spotted owl 437 KB
Gutiérrez, R. J.; Verner, Jared; McKelvey, Kevin; Noon, Barry R.; Steger, George N.; Call, Douglas R.; LaHaye, William S.; Bingham, Bruce B.; Senser, John S.

Color Photograph Section 7.0 MB

Chapter 6: Home-range size and habitat-use patterns of California spotted owls in the Sierra Nevada 1.1 MB
Zabel, Cynthia J.; Steger, George N.; McKelvey, Kevin S.; Eberlein, Gary P.; Noon, Barry R.; Verner, Jared

Chapter 7: Patterns of habitat use by California spotted owls in logged forests f the northern Sierra Nevada 516 KB
Zabel, Cynthia J.; McKelvey, Kevin S.; Johnston, James D.

Chapter 8: Estimates of demographic parameters and rates of population change 132 KB
Noon, Barry R.; McKelvey, Kevin S.; Lutz, Daryl W.; LaHaye, William S.; Gutiérrez, R. J.; Moen, Christine A.

Chapter 9: Stability properties of the spotted owl metapopulation in southern California 1.0 MB
Noon, Barry R.; McKelvey, Kevin S.

Chapter 10: General biology of major prey species of the California spotted owl 150 KB
Williams, Daniel F.; Verner, Jared; Sakai, Howard F.; Waters, Jeffrey R.

Part III: About Forests and Forest Management

Chapter 11: Historical perspectives on forests of the Sierra Nevada and the Transverse Ranges of southern California: forest conditions at the turn of the century 2.0 MB
McKelvey, Kevin S.; Johnston, James D.

Chapter 12: Fire and fuels management in relation to owl habitat in forests of the Sierra Nevada and southern California 661 KB
Weatherspoon, C Phillip; Husari, Susan J.; van Wagtendonk, Jan W.

Chapter 13: Projected trends in owl habitat 652 KB
McKelvey, Kevin S.; Weatherspoon, Phillip

Appendices

Appendices 92 KB

Citation

Verner, Jared; McKelvey, Kevin S.; Noon, Barry R.; Gutiérrez, R. J.; Gould Jr., Gordon I.; Beck, Thomas W., Technical Coordinators 1992. The California spotted owl: a technical assessment of its current status Gen. Tech. Rep. PSW-GTR-133. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; 285 p.