Mendoza-Lera, Clara; Anlanger, Christine; Oviedo-Vargas, Diana; Kan, Jinjun; Bernasconi, Stephani; Peipoch, Marc: Scale determines stream nitrogen uptake through hydraulic controls - flume experiment [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993506 (dataset in review)
Abstract:
Water flow is the defining feature of riverine ecosystems and a driving force structuring their form and function across scales of ecological organization. While patch-scale flow directly modulates Nitrogen (N) uptake through mass transfer and community composition selection, it is unclear how patch-scale flow spatial heterogeneity influences reach-scale N-uptake. While common paradigm proposes that patch-scale flow heterogeneity increases N-uptake, we propose that the influence of heterogeneity is rather a function of the frequency distribution patch-scale flow. By using flumes, we created a gradient of flume-scale heterogeneity of patch-scale flow velocity increasing the number of bed-roughness elements and we determined flume- and patch-scale N-uptake following stable isotope 15N-NO3 tracer injections. We determined patch-scale flow heterogeneity using Acoustic Doppler Velocimeter.
Keyword(s):
Supplement to:
Mendoza-Lera, Clara; Anlanger, Christine; Oviedo-Vargas, Diana; Kan, Jinjun; Bernasconi, Stephani; Peipoch, Marc (submitted): Spatial flow heterogeneity partially modulates Nitrogen uptake across scales. Limnology and Oceanography
References:
Anlanger, Christine; Risse-Buhl, Ute; von Schiller, Daniel; Noss, Christian; Weitere, Markus; Lorke, Andreas (2021): Hydraulic and biological controls of biofilm nitrogen uptake in gravel‐bed streams. Limnology and Oceanography, 66(11), 3887-3900, https://doi.org/10.1002/lno.11927
Mendoza-Lera, Clara; Anlanger, Christine; Pasqualini, Julia; Fink, Patrick; Muñoz, Isabel; von Schiller, Daniel; Weitere, Markus; Lorke, Andreas; Butturini, Andrea; Gücker, Björn; Gasparini Fernandes Cunha, Davi; Cañas Ramirez, Lidia; Sabater, Francesc; Sponseller, Ryan; Menéndez, Margarita; Polvi, Lina; Finkler, Nícolas; Brauns, Mario (2025): RESTOLINK - Sampling protocol. Zenodo, https://doi.org/10.5281/ZENODO.15637655
Mulholland, Patrick J; Tank, J L; Sanzone, Diane M; Wollheim, Wilfred M; Peterson, Bruce J; Webster, Jackson R; Meyer, Judy L (2000): Nitrogen cycling in a forest stream determined by a 15N tracer addition. Ecological Monographs, 70(3), 471-493, https://doi.org/10.1890/0012-9615(2000)070%5B0471:NCIAFS%5D2.0.CO;2
Workshop, Stream Solute (1990): Concepts and Methods for Assessing Solute Dynamics in Stream Ecosystems. Journal of the North American Benthological Society, 9(2), 95-119, https://doi.org/10.2307/1467445
Additional metadata:
Mendoza-Lera, Clara (2026): Detailed method description for flume experiment at the Strout Water Research Center. Methods_description.pdf
Mendoza-Lera, Clara (2026): Flume sampling map for flume experiment at the Strout Water Research Center. Flume_sampling_map.pdf
Funding:
Coverage:
Latitude: 39.859866 * Longitude: -75.782911
Date/Time Start: 2019-09-01T00:00:00 * Date/Time End: 2019-10-15T00:00:00
Comment:
This study was supported by the scholarship "DAAD Forschungsstipendien für promovierte Nachwuchswissenschaftler (Postdoc- Programm)" of the German Academic Exchange Service.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
3 datasets
Download Data (login required; moratorium until 2028-02-24)
Datasets listed in this bundled publication
- Mendoza-Lera, C; Anlanger, C; Oviedo-Vargas, D et al. (in review): Patch-scale nitrogen uptake and biomass from flume experiment. https://doi.pangaea.de/10.1594/PANGAEA.993509
- Mendoza-Lera, C; Anlanger, C; Oviedo-Vargas, D et al. (in review): Flume-scale nitrogen uptake from flume experiment. https://doi.pangaea.de/10.1594/PANGAEA.993508
- Mendoza-Lera, C; Anlanger, C; Oviedo-Vargas, D et al. (in review): Patch-scale flow velocity from flume experiment. https://doi.pangaea.de/10.1594/PANGAEA.993507