Our mission is to meet our clients' ecological and regulatory challenges with practical, science-based solutions that foster environmentally sustainability and enable project success.




Oakhurst (Headquarters)
David Hartesveldt, B.A., Principal and Senior Botanist, Wetland Scientist                            
Austin Pearson, B.S., Director of Ecological Services - Central Valley/Sierra
Jeff Gurule, B.A., Senior Project Manager, Staff Ecologist                                                     
Wendy Fisher, B.S., Senior Project Manager, Plant/Wetland Ecologist, Certified Arborist
Rebekah Jensen, M.S., Project Manager, Staff Ecologist

Anna Godinho, B.S., Staff Ecologist
Jeri Carney, Director of Business Operations
Sinta Borland, Office Administrator


San Jose
Rick Hopkins, Ph.D., Principal and Senior Conservation Biologist, Ecologist                          
Davinna Ohlson, M.S., Director of Ecological Services - Central & Northern CA
Pamela Peterson, M.S., Senior Project Manager, Plant & Wetland Ecologist
Katrina Krakow, M.S., Project Manager, Staff Ecologist                                                        
Nathan Hale, M.S., Project Manager, Staff Ecologist

Sarah Piramoon, Asst. Project Manager, Staff Ecologist

Emily Moffitt, Staff Ecologist

Tom Haney, M.A., Director of Cartography, GIS
Elaine Alper, Office Administrator

Geoff Cline, M.S., Senior Project Manager and Ecologist


Robert Shields, Field Ecologist                                                           
Mark Jennings, Ph.D., Senior Associate Ecologist and Herpetologist                                      
Raymond White, Ph.D., Senior Associate Ecologist and Entomologist                                   
Susan E. Townsend, Ph.D., Senior Associate Conservation Biologist                                      
Chuck Peck, Senior Associate Conservation Biologist                                                  
Jim Paulus, Ph.D., Senior Associate Botanist                                                                
Neal Kramer, M.S., Senior Associate Botanist                                                                        
Brett Dickson, Ph.D., Landscape Ecologist, Conservation Biologist

Brad McRae, Ph.D., Landscape Ecologist, Conservation Biologist