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    Author(s): Jennifer L. Tank; Judy L. Meyer; Diane M. Sanzone; Patrick J. Mulholland; Jackson R. Webster; Bruce J. Peterson; Wilfred M. Wollheim; Norman E. Leonard
    Date: 2000
    Source: Limnol. Oceanogr., 45(5). 2000. 1013-1029
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (1.7 MB)


    We added l5NH4Cl over 6 weeks to Upper Ball Creek, a second-order deciduous forest stream in the Appalachian Mountains, to follow the uptake, spiraling, and fate of nitrogen in a stream food web during autumn. A priori predictions of N flow and retention were made using a simple food web mass balance model. Values of δ15N were determined for stream water ammonium, nitrate, dissolved organic nitrogen, and various compartments of the food web over time and distance and then compared to model predictions.

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    Tank, Jennifer L.; Meyer, Judy L.; Sanzone, Diane M.; Mulholland, Patrick J.; Webster, Jackson R.; Peterson, Bruce J.; Wollheim, Wilfred M.; Leonard, Norman E. 2000. Analysis of nitrogen cycling in a forest stream during autumn using a 15N-tracer addition. Limnol. Oceanogr., 45(5). 2000. 1013-1029

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