Speir Lab Publications
Please note publications are listed in reverse chronological order with the most recent articles first.
(20) A.F. Hamlet, N. Ehsani, J.L. Tank, Z. Silver, K. Byun, U.H. Mahl, S.L. Speir, M.T. Trentman, T.V. Royer. 2024. Effects of climate and winter cover crops on nutrient loss in agricultural watersheds in the Midwestern U.S. Climatic Change. https://doi.org/10.1007/s10584-023-03656-4
(19) S.L. Speir*, L.A. Rose*, J.R. Blaszczak, D.W. Kincaid, H.M. Fazekas, A.J. Webster, M.A. Wolford, A.J. Shogren, A.S. Wymore. 2023. Catchment concentration-discharge relationship across temporal scales. WIREs Water. http://doi.org/10.1002/wat2.1702 *Co-first Authors (18) S.L. Speir, C.N. Jones, A.J. Shogren, C.L. Atkinson. 2023. Uncertainty in streamflow measurements significantly impacts estimates of downstream nitrate export. Environmental Research Letters. https://doi.org/10.1088/1748-9326/ad0ad2 (17) S.L. Speir, J.L. Tank, J.M. Taylor, A.L. Grose. 2023. Temperature and carbon availability interact to enhance nitrous oxide production via denitrification in alluvial plain river sediments. Biogeochemistry. https://doi.org/10.1007/s10533-023-01074-3 (16) A.S. Wymore, W. Larsen, D.W. Kincaid, K.L. Underwood, H.M. Fazekas, D.S. Murray, A.J. Shogren, S.L. Speir, A.J. Webster. Revisiting the origins of power-law analyses for the assessment of concentration-discharge relationships. Water Resources Research. https://doi.org/10.1029/2023WR034910 (15) L. Shang, Y. Zhang, Q. Ye, S.L. Speir, B.W. Peters, Y. Wu, C.J. Stoffel, D. Bolster, J.L. Tank, D.M. Wood, N. Wei, D. Wang. 2023. CrowdWaterSens: An Uncertainty-aware Crowdsensing Approach to Groundwater Contamination Estimation. Pervasive and Mobile Computing. https://doi.org/10.1016/j.pmcj.2023.101788 (14) L.R. Sethna, T.V. Royer, S.L. Speir, M.T. Trentman, U.H. Mahl, L.P. Hagemeier; J.L. Tank. 2022. Silicon concentrations and stoichiometry in two agricultural watersheds: implications for management and downstream water quality. Biogeochemistry. 159: 265–282. https://doi.org/10.1007/s10533-022-00927-7 (13) A. Ghosh, A. Robison, A. Chiapella, B. Bertolet, C. Selden, D. Perry, H. Reich, I. Oleksy, J. Isanta-Navarro, K. Aho, L. Ganley, L. Melo Vieira Soares, L. Heffernan, O. Peleg, P. Ramulifho, P. Thibodeau, P. Reis, M. Sasaki, N. Ray, R. Maher, R. LaBrie, S.L. Speir*. 2022. Eco-DAS: an effective platform for developing professional collaborations among early career aquatic scientists. Limnology & Oceanography Bulletin. 31(1): 27-29. https://doi.org/10.1002/lob.10485 *Author order determined alphabetically by first name (12) A.L. Grose*, S.L. Speir, A.N. Thellman, M.M. Dee, J.L. Tank. 2022. Differences in groundwater contributions to streamflow versus watershed nitrate export reveal the importance of scale in evaluating agricultural conservation practices. Hydrological Processes. 36(2): e14476. https://doi.org/10.1002/hyp.14476 *Undergraduate Mentee (11) S.L. Speir, C.J. Stoffel, D. Bolster, J.L. Tank, L. Shang, D.M. Wood, B.W. Peters, N. Wei, D. Wang. 2022. Solutions to current challenges in widespread monitoring of groundwater quality via crowdsensing. Groundwater. 60(1): 15-24. http://doi.org/10.1111/gwat.13150 (10) S.L. Speir, J.L. Tank, M.T. Trentman, U.H. Mahl, L.R. Sethna, T.V. Royer. 2022. Cover crops control nitrogen and phosphorus transport from two agricultural watersheds at multiple measurement scales. Agriculture, Ecosystems & Environment. 326: 107765. https://doi.org/10.1016/j.agee.2021.107765 (9) S.L. Speir, J.L. Tank, M. Bieroza, U.H. Mahl, T.V. Royer. 2021. Storm size and hydrologic modification influence nitrate mobilization and transport in agricultural watersheds. Biogeochemistry. 156: 319–334 https://doi.org/10.1007/s10533-021-00847-y (8) B.R. Hanrahan, J.L. Tank, S.L. Speir, M.T. Trentman, S.F. Christopher, U.H. Mahl, T.V. Royer. 2021. Extending the growing season with winter cover crops reduces phosphorus loss from an agricultural watershed. Science of the Total Environment. 801. https://doi.org/10.1016/j.scitotenv.2021.149501 (7) J.L. Tank, S.L. Speir, L.R. Sethna, T.V. Royer. 2021. The case for studying highly modified agricultural streams: Farming for biogeochemical insights. Limnology and Oceanography Bulletin. 30(2): 41-47. https://doi.org/10.1002/lob.10436 (6) M.T. Trentman, J.L. Tank, T.V. Royer, S.L. Speir, U.H. Mahl, L.R. Sethna. 2020. Cover crops and precipitation influence soluble reactive phosphorus losses via tile drain discharge in an agricultural watershed. Hydrological Processes. 34(23): 4446-4458. (5) S.L. Speir, J.L. Tank, U.H. Mahl. 2020. Quantifying denitrification following floodplain restoration via the two-stage ditch in an agricultural watershed. Ecological Engineering. 155. (4) J.M. Taylor, M. Moore, S.L. Speir, S. Testa III. 2020. Vegetated ditch habitats provide net nitrogen sink and phosphorus storage capacity in agricultural drainage networks despite senescent plant leaching. Water. 12(3). (3) A.J. Shogren, J.L. Tank, E.J. Rosi, M.M. Dee, S.L. Speir, D. Bolster, and S.P. Egan. 2019. Transport and instream removal of the Cry1Ab protein from genetically engineered maize is mediated by bioflims in experimental streams. PloS one. 14(5). (2) Speir, S.L., J.M. Taylor, and J.T. Scott. 2017. Seasonal variation in denitrification in ditch sediments vegetated with rice cutgrass (Leersia oryzoides) across a nitrate gradient. Journal of Environmental Quality. 46(6): 1500-1509. (1) Speir, S.L., M.M. Chumchal, R.W. Drenner, W.G. Cocke, M.E. Lewis, and H.J. Whitt. 2014. Methyl mercury and stable isotopes of nitrogen reveal that a terrestrial spider has a diet of emergent aquatic insects. Environmental Toxicology and Chemistry. 33(11): 2506-2509. In Revision/Review: (1) S.L. Speir, J.L. Tank, A. Pastor, M.F. Müller, M. Mastepanov, T. Riis. Climate-induced land cover change alters long-term riverine nitrogen export in Northeast Greenland. In review with Environmental Research Letters. (2) S.L. Speir, J.L. Tank, U.H. Mahl, L. Li, T.V. Royer. Cation-mediated effects of cover crops enhance retention of soil phosphorus on the agricultural landscape. In review with Agriculture, Ecosystems & Environment. (3) S.L. Speir, J.L. Tank, M.T. Trentman, M.M. Dee, A.J. Shogren. Environmental context differentially influences nitrogen and phosphorus uptake in streams. In review with Freshwater Science. |