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    Author(s): Suzanne C. Fouty
    Date: 2018
    Source: In: Johnson, R. Roy; Carothers, Steven W.; Finch, Deborah M.; Kingsley, Kenneth J.; Stanley, John T., tech. eds. 2018. Riparian research and management: Past, present, future: Volume 1. Gen. Tech. Rep. RMRS-GTR-377. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 102-133. doi: http://doi.org/10.2737/RMRS-GTR-377-CHAP7.
    Publication Series: General Technical Report (GTR)
    Station: Rocky Mountain Research Station
    PDF: Download Publication  (722.0 KB)

    Description

    Euro-American (EA) beaver trapping was a regional and watershed-scale disturbance that occurred across the North American continent. This concentrated removal of beavers altered drainages by creating thousands of localized base-level drops as beaver dams failed and were not repaired. These base-level drops led to the development of channels as ponds drained and water eroded the fine sediment trapped behind the dams (Dobyns 1981; Fouty 1996, 2003; Parker et al. 1985). The speed at which drainages transformed from beaver-dominated to channel-dominated varied as a function of climate, upland and riparian vegetation, and the subsequent land uses. As the drainage network pattern changed, flood magnitudes and frequencies increased and base flows decreased, creating stream systems much more sensitive to climatic variability.

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    Citation

    Fouty, Suzanne C. 2018. Euro-american beaver trapping and its long-term impact on drainage network form and function, water abundance, delivery, and system stability [Chapter 7]. In: Johnson, R. Roy; Carothers, Steven W.; Finch, Deborah M.; Kingsley, Kenneth J.; Stanley, John T., tech. eds. 2018. Riparian research and management: Past, present, future: Volume 1. Gen. Tech. Rep. RMRS-GTR-377. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 102-133. doi: http://doi.org/10.2737/RMRS-GTR-377-CHAP7.

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    Keywords

    riparian, ecosystem, ecology, riparian processes, restoration, aquatic, arid, semi-arid, upland, freshwater, groundwater, hydrology

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https://www.fs.usda.gov/treesearch/pubs/57373