Harlow Seminar – July 13th, 2023, Frank van Manen


Harlow Seminar – July 13th, 2023, Frank van Manen

The remarkable recovery of the Yellowstone grizzly bear: biology, science, and management
Speaker: Frank T. van Manen, USGS
Time: Thursday, July 13th, 5:30pm MT, talk begins at 6:30pm MT
Location: UW-NPS Research Station at the AMK Ranch, in the Berol Lodge

The talk will also be available via Zoom (The zoom link will be made available through our email list. If you are not on the list, please click here to join: https://uwnps.org/mailing-list/)


Few animals symbolize the wild landscapes of the American West more than the grizzly bear. The fate of grizzly bears in the Yellowstone region was similar to that of large predator species worldwide, with indiscriminate killing in the 1800s and into the mid-1900s, resulting in severe population declines and range contraction. The path to recovery of the Yellowstone grizzly bear population started 50 years ago at the controversial intersection of science, policy, and public opinion. Concerted and visionary conservation efforts reversed the declining population trends of the late 1970s. Based on long-term data collected by the Interagency Grizzly Bear Study Team (IGBST), we explore the history, current status, and future of grizzly bears in the Greater Yellowstone Ecosystem. The scientific data provide important insights into factors that contributed to the recovery, the resilience of this iconic animal, and the challenges that come with conservation success.


Frank T. van Manen is a Supervisory Research Wildlife Biologist with the U.S. Geological Survey in Bozeman, Montana and Team Leader of the Interagency Grizzly Bear Study Team (IGBST), a science consortium of federal, state, and tribal agencies established in 1973 to address research and monitoring needs regarding the Greater Yellowstone grizzly bear population. Frank earned a Ph.D. in Ecology from the University of Tennessee in 1994, researched black bears, red wolves, and Florida panthers in the southeastern U.S. during the 1990s and 2000s, and joined the IGBST in 2012. Frank has collaborated on bear research projects in Ecuador (Andean bears), Sri Lanka (sloth bears), China (giant panda), and Malaysia (sun bears). He was elected President of the International Association for Bear Research and Management from 2007 to 2013 and served on its Executive Council for 15 years.