Dr. Bob Gresswell is an emeritus research biologist with the USGS Northern Rocky Mountain Science Center, whose current research interests are focused on the effects of fire, timber harvest, invasive species, and climate change on the persistence of native trout in the Intermountain West. He has been involved with the lake trout issue in Yellowstone Lake since these invaders were first discovered in 1994, and acted as chair of the lake trout suppression independent scientific review panel that was formed in 2008.

Recorded on January 30, 2019 at Montana State University, as part of the Institute on Ecosystems Rough Cut Science seminar series.