Bob Wilkerson (Staff Biologist) Tel: (415) 233 0684

Bob has a Bachelor's of Science degree in Ecology and Systematic Biology from Cal Poly San Luis Obispo. Bob started at IBP in 1998 as a seasonal biologist doing point counts on Yosemite National Park’s Avian Inventory.  As a biologist for IBP's Sierra Nevada Bird Observatory and its Avian Inventory projects Bob spends summer field seasons conducting field work and training and supervising field crews throughout the Sierra Nevada and Pacific Northwest National Parks. The projects Bob is most heavily involved in included the landbird monitoring projects in North Cascades, Olympic, Mount Rainier, Sequoia/Kings Canyon and Yosemite National Parks and the Black-backed Woodpecker monitoring and telemetry work in Sierra Nevada National Forests.

In the office Bob’s responsibilities include project design, planning, and field crew recruitment.  He specializes in database management and GIS projects, and is involved in website design and management.

Selected Publications:

Siegel, R. B., M. L. Bond, R. L. Wilkerson, B. C. Barr, C. Gardiner, and J. M. Kinsella. In press. Lethal Procyrnea nematode infection in a Black-backed Woodpecker (Picoides arcticus) from California. Journal of Zoo and Wildlife Medicine.

Siegel, R. B., R. L. Wilkerson, R. C. Kuntz II, J. F. Saracco, and A. L. Holmgren. In press. Elevation ranges of birds at Mount Rainier National Park, North Cascades National Park Service Complex, and Olympic National Park. Northwestern Naturalist.

Wilkerson, R. L., and R. B. Siegel. 2011. Distribution and abundance of Western Burrowing Owls (Athene cunicularia hypugaea) in southeastern California. The Southwestern Naturalist 56:378-384. PDF

Siegel, R. B., R. L. Wilkerson, J. F. Saracco, and Z. L. Steel. 2011. Elevation ranges of birds on the Sierra Nevada’s west slope. Western Birds 42:2-26. Download

Saracco, J. F., R. B. Siegel, and R. L. Wilkerson. 2011. Occupancy modeling of Black-backed Woodpeckers on burned Sierra Nevada forests. Ecosphere 2:art31. Download

Siegel, R. B., R. L. Wilkerson, and M. Goldin Rose. 2010. Bird monitoring protocol for national parks in the Sierra Nevada Network. Natural Resource Report NPS/SIEN/NRR--2010/231. National Park Service, Fort Collins, CO. Download

Wilkerson, R. L., and R. B. Siegel. 2010. Assessing changes in the distribution and abundance of Burrowing Owls in California, 1993-2007. Bird Populations 10:1-36.

Siegel, R. B., R. L. Wilkerson, and D. F. DeSante. 2008. Extirpation of the Willow Flycatcher from Yosemite National Park. Western Birds 39:8-21.

Siegel, R. B., R. L. Wilkerson, K. J. Jenkins, R. C. Kuntz II, J. R. Boetsch, J. P. Schaberl, and P. J. Happe. 2007. Landbird monitoring protocol for national parks in the North Coast and Cascades Network. U.S. Geological Survey Techniques and Methods 2-A6. 208 pp.

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