ArticleScientific reports2022
Expanding beaver pond distribution in Arctic Alaska, 1949 to 2019.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
7 citing papers in PubMed.
- 'Human ecology: an interdisciplinary journal · 2027Article
- Beavers on Ice: Factors Influencing Emergence Phenology in Boreal Canada.Global change biology · 2026Article
- Trust-building as a Keystone Activity in Beaver-related Restoration Practice.Environmental management · 2026Article
- Synthesis ofVeterinary sciences · 2025Review
- Gyrfalcon Prey Abundance and Their Habitat Associations in a Changing Arctic.Ecology and evolution · 2025Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Beavers were not previously recognized as an Arctic species, and their engineering in the tundra is considered negligible. Recent findings suggest that beavers have moved into Arctic tundra regions and are controlling surface water dynamics, which strongly influence permafrost and landscape stability. Here we use 70 years of satellite images and aerial photography to show the scale and magnitude of northwestward beaver expansion in Alaska, indicated by the construction of over 10,000 beaver ponds in the Arctic tundra. The number of beaver ponds doubled in most areas between ~ 2003 and ~ 2017. Earlier stages of beaver engineering are evident in ~ 1980 imagery, and there is no evidence of beaver engineering in ~ 1952 imagery, consistent with observations from Indigenous communities describing the influx of beavers over the period. Rapidly expanding beaver engineering has created a tundra disturbance regime that appears to be thawing permafrost and exacerbating the effects of climate change.
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