Who We Are

Who We Are

Our Professionals

Our Professionals

We have nearly 80 staff in five offices in California and Hawai‘i. 3 ways to get in touch with one of our senior experts:

  • Click on the yellow bird and "tell us about your project" 
  • Search our directory of senior staff to find the expertise you need
  • Call 408.458.3200

Find a Professional

Stephen L. Peterson, M.S. (Senior Ecologist)

Stephen Peterson is a senior wildlife ecologist and project manager in the San Francisco Bay Area office of H. T. Harvey & Associates. His more than dozen years of professional experience have primarily consisted of research focused on habitat and anthropogenic impact associations with avian and wildlife communities. Stephen has also worked on numerous projects in the San Francico Bay Area and writes biological resource assessments to support CEQA compliance. His survey experience with special-status wildlife species includes the burrowing owl, long-billed curlew, snowy plover, golden eagle, San Joaquin kit fox, California red-legged frog (CRLF), and California tiger salamander (CTS).

Steve Rottenborn, Ph.D. (Vice President, Principal)

Dr. Steve Rottenborn is a Vice President, and principal in the wildlife ecology group in the San Francisco Bay Area office of  H. T. Harvey & Associates. He specializes in resolving issues related to special-status wildlife species and in meeting the wildlife-related requirements of federal and state environmental laws and regulations. Combining his research and training as a wildlife biologist and avian ecologist, Steve has built an impressive professional career that is highlighted by a particular interest in wetland and riparian communities, as well as the effects of human activities on bird populations and communities. 

Terrell Erickson, M.S. (Senior Associate Ecologist)

Terrell Erickson is a senior associate ecologist in the Hawaii office of H. T. Harvey & Associates, with more than 30 years of experience, including with the USDA Natural Resources Conservation Service as the State Biologist of the Pacific Islands, National Biologist, Ecological Division Director, and Regional Conservationist of the Northeast. She spent 15 years working in Hawaii and Guam previously and is back in the islands to continue ecological work.