The California Spotted Owl:
A Technical Assessment of Its Current Status

Jared Verner, Kevin S. McKelvey, Barry R. Noon, R. J. Gutiérrez, Gordon I. Gould, Jr., and Thomas W. Beck

Technical Coordinators

Contents

Acronyms 385 K

Preface 20 K

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 for management 260 K

Jared Verner, Kevin S. McKelvey, Barry R. Noon, R.J. Gutiérrez, Gordon I. Gould, Jr., and Thomas W. Beck

Chapter 2.

Future directions for the California spotted owl effort 68 K

Jared Verner and Robert J. Taylor

Part II: About the Owl

Chapter 3.

Background and the current management situation for the
California spotted owl 294 K

Thomas W. Beck and Gordon I. Gould, Jr.

Chapter 4.

The California spotted owl: general biology and ecological relations 955 K

Jared Verner, R.J. Gutiérrez, and Gordon I. Gould, Jr.

Chapter 5.

Habitat relations of the California spotted owl 437 K

R.J. Gutiérrez, Jared Verner, Kevin S. McKelvey, Barry R. Noon, George N. Steger, Douglas R. Call, William S. LaHaye, Bruce B. Bingham, and John S. Senser

Color Photograph Section 7,169 K

Chapter 6.

Home-range size and habitat-use patterns of California spotted owls in the Sierra Nevada 1,082 K

Cynthia J. Zabel, George N. STeger, Kevin S. McKelvey, Gary P. Eberlein, Barry R. Noon, and Jared Verner

Chapter 7.

Patterns of habitat use by California spotted owls in logged forests of the northern Sierra Nevada 516 K

Cynthia J. Zabel, Kevin S. McKelvey, and James D. Johnston

Chapter 8.

Estimates of demographic parameters and rates of population change 132 K

Barry R. Noon, Kevin S. McKelvey, Daryl W. Lutz, William S. LaHaye, E.J. Gutiérrez, and Christine A. moen

Chapter 9.

Stability properties of the spotted owl metapopulation in
southern California 1,074 K

Barry R. Noon, and Kevin S. McKelvey

Chapter 10.

General biology of major prey species of the California spotted owl 151 K

Daniel F. Williams, Jared Verner, Howard F. Sakai, and Jeffrey R. Waters

Part III: About Forests and Forest Management

Chapter 11.

Historical perspectives on forests of the Sierra Nevada and the Tranverse Ranges of southern California: forest conditions at the turn of the century 2,099 K

Kevin S. McKelvey, and James D. Johnston

Chapter 12.

Fire and fuels management in relation to owl habitat in forests of the Sierra Nevada and southern California 662 K

C. Phillip Weatherspoon, Susan J. Husari, and Jan W. van Wagtendonk

Chapter 13.

Projected trends in owl habitat 652 K

Kevin S. McKelvey, C. Phillip Weatherspoon

Appendices 93 K