San Francisco Bay Area Network Northern Spotted Owl Monitoring Protocol: Version 6.4
Press D, Adams D, Jensen H, Fehring K, Merkle WW, Koenen M, Stacevich L. 2010. San Francisco Bay Area Network Northern Spotted Owl Monitoring Protocol: Version 6.4. Natural Resource Report. NPS/SFAN/NRR—2010/245. National Park Service. Fort Collins, Colorado
This protocol and the attached standard operating procedures detail the background, field methods, data management, annual and long-term reporting and analyses, and operational requirements to monitor northern spotted owls (NSO) at Golden Gate National Recreation Area, Muir Woods National Monument, and Point Reyes National Seashore in California. The owls are listed as threatened under the Endangered Species Act and face a variety of threats in Marin County including loss of habitat due to development and catastrophic fire, displacement by barred owls (Strix varia), change in habitat due to Sudden Oak Death, human disturbances during the breeding season, and mortality due to West Nile Virus. The long-term monitoring objectives are to: 1. Monitor long-term trends in NSO site occupancy rates of territories within the legislated NPS boundaries of Marin County, California. 2. Monitor long-term trends in NSO fecundity (number of female young per territorial female) within NSO territories within the legislated NPS boundaries of Marin County, California. 3. Determine long-term trends in NSO nest site characteristics including nest tree metrics and abiotic and biotic habitat characteristics to evaluate changes in nesting habitat associations within the legislated NPS boundaries of Marin County, California.
- Type
- Published Report
- Authors
- Press, David; Adams, Dawn; Jensen, Heather; Fehring, Katie; Merkle, William; Koenen, Markus; Stacevich, Leigh Ann
- Date of Issue
- 2010-09
- Publisher
- National Park Service
- Units
- GOGA , IMDP , MUWO , NRSS , PORE , SFAN
- Keywords
- Barred Owl, Birds, California, Marin County, Monitoring, Northern Spotted Owl, Protocol, Spotted Owls, Strix occidentalis caurina, Strix varia
- Subjects
- Ecological Framework: Biological Integrity | Focal Species or Communities | Forest/Woodland Communities , Ecological Framework: Biological Integrity | Focal Species or Communities | Birds