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dc.contributor.authorCutting, Kyle A.
dc.contributor.authorFerguson, Jake M.
dc.contributor.authorAnderson, Michelle L.
dc.contributor.authorCook, Kristen
dc.contributor.authorDavis, Stacy C.
dc.contributor.authorLevine, Rebekah
dc.date.accessioned2019-03-05T19:13:14Z
dc.date.available2019-03-05T19:13:14Z
dc.date.issued2018-12
dc.identifier.citationCutting, Kyle A., Jake M. Ferguson, Michelle L. Anderson, Kristen Cook, Stacy C. Davis, and Rebekah Levine. "Linking beaver dam affected flow dynamics to upstream passage of Arctic grayling." Ecology and Evolution 8, no. 24 (December 2018): 12905-12917. DOI:10.1002/ece3.4728.en_US
dc.identifier.issn2045-7758
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/15322
dc.description.abstractBeaver reintroductions and beaver dam structures are an increasingly utilized ecological tool for rehabilitating degraded streams, yet beaver dams can potentially impact upstream fish migrations. We collected two years of data on Arctic grayling movement through a series of beaver dams in a low gradient mountain stream, utilizing radio‐telemetry techniques, to determine how hydrology, dam characteristics, and fish attributes impeded passage and movement rates of spawning grayling. We compared fish movement between a “normal” flow year and a “low” flow year, determined grayling passage probabilities over dams in relation to a suite of factors, and predicted daily movement rates in relation to the number of dams each fish passed and distance between dams during upstream migration to spawning areas. We found that the average passage probability over unbreached beaver dams was 88%, though we found that it fell below 50% at specific dams. Upstream passage of grayling was affected by three main characteristics: (a) temperature, (b) breach status, and (c) hydrologic linkages that connect sections of stream above and below the dam. Other variables influence passage, but to a lesser degree. Cumulative passage varied with distance upstream and total number of dams passed in low versus normal flow years, while movement rates upstream slowed as fish swam closer to dams. Our findings demonstrate that upstream passage of fish over beaver dams is strongly correlated with hydrologic conditions with moderate controls by dam‐ and fish‐level characteristics. Our results provide a framework that can be applied to reduce barrier effects when and where beaver dams pose a significant threat to the upstream migration of fish populations while maintaining the diverse ecological benefits of beaver activity when dams are not a threat to fish passage.en_US
dc.description.sponsorshipU.S. Fish and Wildlife Service; Montana Fish, Wildlife, and Parksen_US
dc.language.isoenen_US
dc.rightsCC BY: This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/legalcodeen_US
dc.titleLinking beaver dam affected flow dynamics to upstream passage of Arctic graylingen_US
dc.typeArticleen_US
mus.citation.extentfirstpage12905en_US
mus.citation.extentlastpage12917en_US
mus.citation.issue4en_US
mus.citation.journaltitleEcology and Evolutionen_US
mus.citation.volume8en_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1002/ece3.4728en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentLand Resources & Environmental Sciences.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage5en_US


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CC BY: This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.
Except where otherwise noted, this item's license is described as CC BY: This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.

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