Patricia Valcarcel, CWB®

Senior Biologist


Patricia Valcarcel earned a MS in Wildlife Sciences while conducting research on the spatial ecology of the threatened giant gartersnake. She has worked on a variety of field research projects ranging from animal movements to behavior and reproduction. She has presented her work at conferences and published in peer-reviewed journals. She is also trained on a variety of sampling techniques including collection of samples for environmental DNA (eDNA) analysis and implemented this method for detection of giant gartersnake. The results are used in combination with other methods to help inform on presence of the cryptic species.

Patricia has extensive experience working with and permitting for special-status species in California. Her focus is reptile and amphibian species, but has broad experience with wildlife species in California’s Central Valley.  Her primary responsibilities are to conduct habitat assessments, prepare associated technical reports and permit applications, and consult with wildlife agencies on special-status wildlife species. She consults with both federal and state wildlife agencies and has prepared federal Section 7 Biological Assessments, federal Section 10 Habitat Conservation Plans, and California Incidental Take Permits for complicated and long-term projects.  In addition, Patricia is involved in environmental permitting, permit compliance, and mitigation and monitoring efforts associated with these permits


“Microhabitat selection of the giant gartersnake”, The Wildlife Society Annual Conference, Waikoloa, Hawaii. 2011

“Wetland restoration, fragmentation, and conservation of the giant gartersnake”, Society for Northwestern Vertebrate Biology Annual Conference, Gig Harbor, Washington. 2011

“Space use of threatened giant gartersnakes in agricultural and constructed wetlands”, The Wildlife Society- Western Section Annual Conference, Riverside, California. 2011

“Invasive species and changing climate conditions: How bullfrogs (Rana catesbeiana) will respond to shifting environments in the Pacific Northwest”, Pacific Northwest Climate Science Conference, Portland, Oregon. 2010


Bureau of Land Management, Flat-tailed Horned Lizard Habitat Modelling, Yuma, Arizona

Clark County Multi-Species Habitat Conservation Plan, Desert Conservation Program, Clark County, Nevada

East Bay Municipal Utility District, Mokelumne Aqueduct Project, San Joaquin County, California

San Joaquin Council of Governments, Multi-Species Habitat Conservation and Open Space Plan On-Call, San Joaquin County, California

Ridge Top Ranch Wildlife Conservation Bank, Solano County, California

Napa Valley Marina Permitting and Dredge Monitoring, Napa, California

Port of Richmond Inner Harbor Maintenance Dredging, Richmond, California

Bruno’s Island Bridge Repair Project, Southwestern Sacramento County, California

Napa Dry Bypass, Napa, California

Parks Reserve Forces Training Facility, Dublin, California

County of Santa Clara, 12 Bridges Scour and NES, Santa Clara County, California

City of Larkspur, Doherty Drive Improvement Project,Larkspur, California

Marin County Department of Public Works, Flood Control Line Replacement, San Rafael, California

Fitzgerald Marine Reserve Coastal Trail, San Mateo County, California

Elsie Gridley Mitigation Bank, Solano County, California

Silicon Valley Clean Water, Force Main Replacement, San Mateo County, California

East Bay Regional Park District, Dotson Family Marsh Restoration and Public Access Project, Richmond, California

Twitchell Island East End Habitat Restoration Project, Sacramento County, California

Sherman Island Whale’s Mouth Wetland Restoration Project, Sacramento County, California

Mare Island Dry Dock Fish Salvage, Vallejo, California

Moller Creek Crossing Project, Dublin, California

Callippe Preserve, Pleasanton, California

Tennessee Valley Biological Monitoring, Mill Valley, California

City of Burlingame, Storm Drain Capital Improvement Program, Burlingame, California


MS, Wildlife Sciences, Oregon State University. 2011

BA, Environmental Sciences, Northwestern University. 2003


Certified Wildlife Biologist – The Wildlife Society

USFWS Recovery Permit for giant gartersnake and San Francisco gartersnake (TE-64146A)

California Department of Fish and Wildlife Scientific Collecting Permit

The Wildlife Society