Jim Arney – FBRI President

Dr. James D. Arney

Dr. James D. Arney brings over fifty years of forest biometrics industrial experience touching every aspect of inventory design, growth & yield, and harvest planning in six western States and three Canadian Provinces.  He has designed in-place inventory systems, calibrated yield models for over twenty tree species, developed site index curves, taper models, managed GIS systems and staff, developed hydrographic, soil and wildlife databases and prepared and presented sustainable yield plans for public and private organizations throughout western North America.  He has developed silvicultural regimes and forest management plans for almost every major species and forest type found in the American Northwest.  Dr. Arney is the only forest biometrician who has designed and built four separate and unique computerized forest growth models (PhD Dissertation distant-dependent whole tree (1969), USFS-Weyerhaeuser distant-dependent (1975), SPS distant-independent (1981), and FPS distant-dependent (1995)).  Both SPS and FPS have been distributed world-wide and represent the most-used, integrated forest management tool set for forest inventory and silvicultural planning on “working forests” in the western United States.


FBRI announcements for 2018

There have been a number of changes and activities which will be occurring throughout 2018.  The letter from President Jim Arney provides some detail.  Other announcements will posted as they occur…Arney letter for 2018

FBRI Position Announcement: Senior Forest Biometrician

FBRI announced Dr. Dan Opalach as the new Senior Forest Biometrician with FBRI beginning January 1, 2018.  This is a full time position with the Institute and the position reports to the FBRI President, Jim Arney.  The position announcement closed on March 11, 2017.  Dr. Opalach was introduced at the 2017 Annual FBRI Meeting on November 14 at the Portland DoubleTree Hotel.

Dan has 28 years of experience in forest biometrics, management and academia.  He is a true advocate for advancing the forestry profession.  Dan strongly believes in the mission of FBRI.  He has demonstrated his enthusiasm, knowledge and experience while serving as the FBRI Board Chairman in recent years.  He has demonstrated a strong desire to communicate and enhance the FBRI mission.

Meet the FBRI Technical Support Staff: Brock Purvis

FBRI Technical Support - Brock PurvisThe Forest Biometrics Research Institute has partnered with Northwest Management, Inc (NMI) to provide technical support services. Within this partnership, Brock acts as the Technical Service Provider and Inventory Forester for FBRI’s FPS software. NMI has been involved with Dr. James Arney of Forest Biometrics and the Forest Biometrics Research Institute since he began these endeavors and has used all of the versions of FPS over the years.  Currently NMI is utilizing FPS Version 7.45.

Brock has worked for NMI for over 12 years and is currently serving as the Inventory Manager. Within this role Brock is responsible for the administration, development, implementation and quality assurance of forest inventory projects for Northwest Management Inc. He has considerable experience in forest inventory sampling design to characterize the forest vegetation in an efficient and statistically reliable manner. He has extensive experience in vegetation mapping, utilizing aerial photography and ground truthing techniques. Mr. Purvis holds a bachelor’s degree in Forest Management from Oregon State University.