PAUL ADAMUS, Oregon State University
Part of the research faculty at Oregon State University, Dr. Adamus supervises graduate students in ecological and geomorphic studies. Author of one of the first functional assessment methods (WET) intended for national use, Paul has since authored Oregon’s HGM methods, trained professionals in their use, contributed to the development of MI’s rapid assessment method, helped develop ecosystem credit trading systems, and designed and directed regional assessments of wetlands in CA, AK, OR, WA, CO, and ME. Dr. Adamus has authored numerous publications.

SAM COLLINSON, Environmental Consultant
Mr. Collinson has over 30 years experience with wetland regulation, 26 of those in the Corps of Engineers Headquarters Regulatory Branch. For 20 years he had primary responsibility for development of the current Corps regulations, policy guidance, and the nationwide permit program. Since retiring in 2002, he has worked as a consultant on regulatory and wetlands issues.

DAVID DEARING, Attorney at Law
Having participated in some of the most significant legal actions to have shaped federal wetland policy, Mr. Dearing served nine years as a lead trial attorney for the U.S. Department of Justice representing the Corps of Engineers, Environmental Protection Agency, and Coast Guard.  He is currently in private practice.

ROBERT H. MOHLENBROCK, Ph.D., Biotic Consultants, Inc.
A nationally acclaimed expert in plant identification, Dr. Mohlenbrock has taught plant identification courses annually since 1960, authored 58 books (including identification guides) and 500 other publications, and is a monthly columnist for Natural History magazine’s “This Land.”

WILLIAM BLAKE PARKER, Hydrosoils, Inc.
The foremost U.S. authority on the identification of hydric soils, Mr. Parker led the project that developed the definition of hydric soils and the original list of hydric soils of the U.S. He also formulated much of the soils portion of the 1987 “Corps of Engineers Wetland Delineation Manual” and served for many years on the National Technical Committee for Hydric Soils.

GARY PIERCE, Ph.D., Froghome Environmental, LLC
Dr. Pierce is recognized nationally for his expertise in wetland mitigation, particularly in the successful construction and restoration of freshwater marsh and forested wetlands. Since 1985 he has been the primary instructor in the Army Corps of Engineers’ course, “Wetland Construction and Restoration,” as well as courses for Wetland Training Institute and other providers.

ROBERT J. PIERCE, Ph.D., PWS; Wetland Science Applications, Inc.
Dr. Pierce has over 30 years experience in wetland regulation, delineation, construction/restoration, and functional assessment, including participation in the development of the 1987 “Corps of Engineers Wetlands Delineation Manual”, training courses, and the Nationwide Permit program. He has frequently testified as an expert witness.

PHIL SCOLES; Terra Science, Inc.
Mr. Scoles is a Registered Professional Soil Scientist and principal of Terra Science, Inc., that specializes in wetland delineation, permitting, and mitigation. He has extensive experience working with hydric soils and wetland hydrology.

W. THOMAS STRAW, Ph.D., CPH, PWS, Hydrogeologist
A nationally recognized hydrogeologist with over 30 years experience specializing in wetland hydrology, Dr. Straw has consulted for both private industry and government agencies, including the Wetlands Research Team at the Army Engineer Waterways Experiment Station.

W. LARRY SWARD, Helix Environmental Planning, Inc.
With over 25 years of exploring the natural history of southern California, Mr. Sward enjoys sharing his knowledge of botany, habitat restoration, and wetland delineation with his classes.  He works as a biologist in the private sector, and also teaches courses for WTI and Southwestern College, Chula Vista.

JAMES W. TEAFORD, PWS, CWB, J.W. Teaford & Co.
Mr. Teaford is a forester and wildlife biologist with over 25 years experience in integrated natural resources management in both wetland and non-wetland habitats throughout the country. He has conducted professional wetland training for government agencies and the private sector throughout the United States.

Other instructors, or associates, who may be involved with WTI courses, include, but are not limited to, the following: