Mar 18, 2024
During my time at Deerfield Elementary School in southern Wisconsin, my fourth-grade teacher taught us about Wisconsin’s geological history. I recall learning about glaciers, the formation of our local drumlins, and how unique the unglaciated driftless area is when it comes to midwestern landscapes. However, I don’t recall Mr. Meyer teaching my class about the endangered sandy pine barrens located in the northwestern part of the state.
This habitat type was also formed by glaciers, although they had the opposite effect. This expanse of poor-quality, sandy soils is exactly where the glaciers scraped across the surface of what is now Wisconsin. Post-ice age, pine barrens covered 2.7 million acres in this region. Sadly, interconnected barrens broken up by young stands of jack pine are difficult to come by these days. In fact, pine and oak barrens are a globally threatened habitat type.
“Red, white, and jack pine as well as oak and some aspen were present in historic pine barrens, but in patches, not large swaths of forests,” said Mike Amman, the Bayfield County forester and the Vice President for the Wisconsin Sharp-tailed Grouse Society. Amman continued, saying that reforestation created dense stands of red and jack pine, which were and are managed for timber production. However, the tree density and sheer total acreage of these areas came at the expense of the historically open barrens. Barrens-related species’ populations have fallen drastically, including the sharp-tailed grouse.