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Beavers Invade Arctic, Changing Landscapes and Travel
5 May
Summary
- Beaver populations are expanding rapidly in the Arctic, impacting traditional travel routes.
- Climate change and increased shrub growth contribute to beaver expansion.
- Community members express concern over ecological changes and lack of market for trapping.
Beaver populations are expanding into Arctic regions, causing significant changes to the environment and traditional Indigenous travel routes. Community monitor Kevin Arey has observed an unusual increase in beaver activity, noting their presence in saltwater and the disruption caused by their dams to waterways and land travel. This observation is supported by a recent study in Ecosphere, which used satellite imagery and vegetation analysis to document beaver expansion in the Arctic as early as 2008.
Researchers like Helen Wheeler attribute this phenomenon to climate change and 'shrubification,' an increase in woody shrubs that provide beavers with resources to build dams. Analyzing shrub rings, similar to tree rings, helps date beaver activity in an area. Satellite imagery also reveals changes in surface water levels caused by beaver dams, which can impact permafrost and contribute to lake drainage.
The lack of a viable market for beaver pelts in the region means traditional trapping and hunting practices are not economically feasible, contributing to the unchecked growth of the beaver population. Arey emphasizes that while data collection is important, it must be coupled with serious action and collaboration between Indigenous communities like the Inuvialuit and Gwich'in to find solutions and protect traditional lands for future generations.
