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Beavers of Voyageurs

Dr. Carol Johnston, formerly at the Natural Resources Research Institute in Duluth but now at South Dakota State University, recently published a book titled “Beavers: Boreal Ecosystem Engineers” summarizing the research she and her colleagues did at Voyageurs National Park on the effects of beavers on ecosystems from the 1980s to present.

“This 88-year record of beaver landscape occupation and alteration documented by Johnston and colleagues from aerial photography and field work provides a unique resource toward understanding the ecosystem effects and sustainability of beaver activity.”

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