Podcast
Podcast: Saving America’s Remaining Grasslands by Fighting the Green Glacier
On the Wing podcast host, Bob St. Pierre, sits down with Dirac Twidwell, Working Lands for Wildlife’s science advisor to discuss woody encroachment and grasslands.
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June 5, 2025
Learn about the “Green Glacier” and how it’s impacting the Great Plains grasslands, hunting, and our shared heritage in this On the Wing episode.
Episode Title: Saving America’s Remaining Grasslands by Fighting the Green Glacier
Podcast: On the Wing
Producer: Pheasants Forever
WLFW Expert: Dirac Twidwell, WLFW’s Great Plains grassands biome science advisor and professor of agronomy at the University of Nebraska, Lincoln
Topic: Woody encroachment in grasslands
Air Date: 04/09/25
Listen Time: 1:22
Host Bob St. Pierre sits down with Dr. Dirac Twidwell, a professor and research scientist from the University of Nebraska, to talk about his hunting roots and life’s mission to save America’s last remaining grasslands. Dr. Twidwell explains the concept of the “Green Glacier” of woody vegetation taking over the Great Plains, and why prescribed fire is the most important tool for grassland habitat conservation. He also reports that woody encroachment is now equal to land conversion for agricultural production as the top two factors in habitat loss across the country.