David Chapman is Vice President of Stratus Consulting in Boulder, Colorado. A natural resource economist, he has worked in natural resource damage assessment and environmental valuation for more than 20 years. Chapman leads natural resource valuation and NRDA projects for both state and federal agencies. He was previously a senior economist at the NOAA Damage Assessment Center, actively involved in economic and natural science studies for many NRDAs and restoration planning activities undertaken by NOAA throughout the United States. He has worked extensively to develop wide ranges of techniques valuing resources and the services they provide.