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    Author(s): D.C. Drake; Paul J. Sheppard; Robert J. Naiman
    Date: 2011
    Source: Canadian Journal of Forestry Research. 41: 2423-2432
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (922.83 KB)


    Quantification of a relationship between salmon escapement in rivers and riparian tree-ring δ 15N could allow reconstruction of prehistorical salmon abundance. Unfortunately, attempts to quantify this link have met with little success. We examined the feasibility of the approach using natural abundance of δ 15N in riparian tree rings formed before and after extirpation of salmon and 15N tracer studies in a river and riparian soils.

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    Drake, D.C.; Sheppard, Paul J.; Naiman, Robert J. 2011. Relationships between salmon abundance and tree-ring δ 15N: three objective tests. Canadian Journal of Forestry Research. 41: 2423-2432.

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