Articles | Volume 19, issue 8
Research article
11 Aug 2015
Research article |  | 11 Aug 2015

Impacts of beaver dams on hydrologic and temperature regimes in a mountain stream

M. Majerova, B. T. Neilson, N. M. Schmadel, J. M. Wheaton, and C. J. Snow

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Manuscript not accepted for further review
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Cited articles

Albert, S. and Trimble, T.: Beavers are partners in riparian restoration on the Zuni Indian Reservation, Ecological Restoration, 18, 87–92,, 2000.
Andersen, D. C., Shafroth, P. B., Pritekel, C. M., and O'Neill, M. W.: Managed flood effects on beaver pond habitat in a desert riverine ecosystem, Bill Williams River, Arizona USA, Wetlands, 31, 195–206,, 2011.
Barrett, K. R.: Ecological Engineering in Water Resources, Water Int., 24, 182–188,, 1999.
Beschta, L. R., Bilby, E. R., Brown, W. G., Holtby, L. B., and Hofstra, D. T.: Stream temperature and aquatic habitat: fishersies and forestry interactions, in: Streamside Management: Forestry and Fishery Interactions, edited by: Salo, E. O. and Cundy, T. W., University of Washington, Institute of Forest Resources, Seattle, WA, Contribution No. 57, 191–232, 1987.
Billman, E., Kreitzer, J., Creighton, J. C., Habit, E., McMillan, B., and Belk, M.: Habitat enhancement and native fish conservation: can enhancement of channel complexity promote the coexistence of native and introduced fishes?, Environ. Biol. Fish., 96, 555–566,, 2013.
Short summary
This study quantifies the impacts of beaver on hydrologic and temperature regimes, as well as highlights the importance of understanding the spatial and temporal scales of those impacts. Reach-scale discharge showed shift from losing to gaining. Temperature increased by 0.38°C (3.8%) and mean residence time by 230%. At the sub-reach scale, discharge gains and losses increased in variability. At the beaver dam scale, we observed increase in thermal heterogeneity with warmer and cooler niches.