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oai:figshare.com:article/33292212 2026-09-16T18:01:45Z category_24223 item_type_3 month_year_09_2026

Zampini et al. 2026 “Trophic highways and dead ends: Algal traits regulate nutrient flux and energy transfer in stream food webs” ECOLOGY. Underlying data and R code Michael Zampini (17781117) Freshwater ecology Nutrient fluxes Trophic Transfer <p dir="ltr">This Figshare item contains the underlying datapoints, analysis script, and Tukey-adjusted pairwise comparisons supporting the statistical analyses reported in the manuscript “Trophic highways and dead ends: Algal traits regulate nutrient flux and energy transfer in stream food webs”.</p><p dir="ltr"><b>Authors:</b> Michael C. Zampini^1,2, Michael A. Wulf², Augustine N. Sitati³, Saeed H. Kariunga², Steven A. Thomas³, Mary E. Power¹ and Jane C. Marks²</p><p dir="ltr"><b>Affiliations:</b></p><p dir="ltr">¹University of California, Department of Integrative Biology, Berkeley CA 94720-3140 USA.</p><p dir="ltr">²Northern Arizona University, Center for Ecosystem Science and Society & Department of Biological Sciences, Flagstaff AZ, 86011 USA.</p><p dir="ltr">³University of Alabama, Department of Biological Sciences, Tuscaloosa AL, 35487 USA.</p><p dir="ltr">Description of data deposited:</p><p dir="ltr">The <code>CN Fixation NH4 Uptake</code> sheet contains field measurements of algal carbon fixation, nitrogen (N₂) fixation, and ammonium (NH₄⁺) uptake. These rates are expressed as µg C or N g algae⁻¹ h⁻¹.</p><p dir="ltr">The <code>Algal Stoichiometry</code> sheet contains algal elemental composition: carbon and nitrogen as percentages of algal dry mass (%C and %N), and the mass-based C:N ratio.</p><p dir="ltr">The <code>Grazer Assimilation</code> sheet contains caddisfly carbon assimilation and fixed-nitrogen assimilation, expressed as µg C or N mg grazer⁻¹ day⁻¹. <code>Temperature.2</code> records mean water temperature in °C. Entries marked <code>Not Evaluated</code> indicate that fixed-nitrogen assimilation was not measured for that sample.</p><p dir="ltr">The accompanying R script reproduces the Figure 2 analyses, including one-way ANOVAs, Tukey-adjusted pairwise comparisons, compact-letter summaries, bootstrap estimates, and figure output. The workbook contains calculated datapoints used in the manuscript rather than upstream isotope measurements. The item is provided as the public data and code record associated with the paper.</p> 2026-09-16T18:01:45Z Dataset Dataset 10.6084/m9.figshare.33292212.v1 https://figshare.com/articles/dataset/Zampini_et_al_2026_Trophic_highways_and_dead_ends_Algal_traits_regulate_nutrient_flux_and_energy_transfer_in_stream_food_webs_ECOLOGY_Underlying_data_and_R_code/33292212 CC BY 4.0