Dan is the Unit Leader – Wildlife for the U.S. Geological Survey - OregonCooperative Fish and Wildlife Research Unit and Professor of Wildlife Ecology in the Department of Fisheries and Wildlife at Oregon State University. Dan’s primary area of research interest is the physiological ecology and conservation biology of seabirds. Over the last 20 years, he has been involved in research on the impact of seabird predation on recovery of ESA-listed salmonids in the Columbia River basin and non-lethal methods to mitigate those impacts. He has also studied the long-term effects of the Exxon Valdez oil spill on seabirds in Alaska, most recently focusing on restoration of seabirds that have failed to recover from the spill over the subsequent 29 years. He is also assisting restoration efforts for the critically endangered Chinese crested tern, a seabird species so rare it was thought to be extinct for 63 years.