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Roley Lab Watershed Biogeochemistry


Published or in press

18) Roley, S.S., Xue, C., Hamilton, S.K., Tiedje, J.M., and Robertson, G.P. 2019. Episodic nitrogen fixation in switchgrass (Panicum virgatum L.). Soil Biology and Biochemistry.129: 90-98. doi: 10.1016/j.soilbio.2018.11.006

17) Roley, S.S., Duncan, D.S., Liang, D., Garoutte, A., Tiedje, J.M., Jackson, R.D., and Robertson, G.P. Associative nitrogen fixation (ANF) in switchgrass (Panicum virgatum) across a nitrogen input gradient. 2018. PLoS ONE 13(6): e0197320. doi: 10.1371/journal.pone.0197320

16) Roley, S.S., Tank, J.L., Cook, P.L.M., and Grace, M.R. 2018. The influence of an invasive plant on denitrification in an urban wetland. Freshwater Biology. doi: 10.1111/fwb.13073

15) Sanford, G.R., Jackson, R.D., Oates, L.G., Robertson, G.P., Roley, S.S., and Thelen, K.T.  2017. Bioethanol yields and quality components in seven lignocellulosic biomass crops grown in the North Central USA. Agronomy Journal. 109:1-12. doi:10.2134/agronj2016.08.0454.

14) Zhang, B., Penton, C.R., Xue, C., Quensen, J., Roley, S.S., Guo, J., Garoutte, A., Zheng, T., and Tiedje, J.M., 2017. Depth-related analyses of soil bacterial communities under ten biofuel cropping systems. Soil Biology and Biochemistry. 112: 140-152. doi: 10.1016/j.soilbio.2017.04.019

13) Roley, S.S. and Tank, J.L. 2016. Pore water physicochemical constraints on the endangered clubshell mussel, Pleurobema clava. Canadian Journal of Fisheries and Aquatic Sciences. 73: 1712-1722. doi: 10.1139/cjfas-2015-0442.

12) Roley, S.S., Tank, J.L., Tyndall, J.C., and Witter, J.  2016. How cost-effective are cover crops, wetlands, and two-stage ditches for nitrogen removal in the Mississippi River Basin?  Water Resources and Economics.  15:43-56. doi: 10.1016/j.wre.2016.06.003

11) Mahl, U.H., Tank, J.L., Roley, S.S., and Davis, R.T. 2015. Floodplains constructed via the two-stage ditch enhance N-removal capacity and reduce turbidity and dissolved P in streams.  Journal of the American Water Resources Association.  1-18.  doi: 10.1111/1752-1688.12340

10) Davis, R.T., Tank, J.L., Mahl, U.H., Winikoff, S.G., and Roley, S.S.  2015. The influence of floodplain construction via the two-stage ditch on water column nutrients and sediments in agricultural streams.  Journal of the American Water Resources Association. 1-15.  doi: 10.1111/1752-1688.12341

9) Roley, S.S., Griffiths, J.R., Levi, P.S., Patrick, C.J., Sadro, S., and Zarnetske, J.P. 2014. Taking the pulse of the ecosystem: progress in quantifying aquatic ecosystem health.  Eco-DAS X Symposium Proceedings.  Eco-DAS X Chapter 7: 101-118. doi: 10.4319/

8) Roley, S.S., Tank, J.L., Griffiths, N.A., Hall, R.O., and Davis, R.T.  2014.  The influence of floodplain restoration on whole-stream metabolism in an agricultural stream: insights from a 5-year continuous data set.  Freshwater Science. 33: 1043-1059.  doi:10.1086/677767.

7) Griffths, N.A., Tank, J.L., Royer, T.V., Roley, S.S., Rosi-Marshall, E.J., Whiles, M.R., Beaulieu, J.J., and Johnson, L.T.  2013.  Agricultural land use alters the seasonality and magnitude of stream metabolism. Limnology and Oceanography. 58:1513-1529. doi: 10.4319/lo.2013.58.4.1513

6) Roley, S.S., Tank, J.L., and Williams, M.A.  2012.  Hydrologic connectivity increases denitrification in the hyporheic zone and restored floodplains of an agricultural stream.  Journal of Geophysical Research – Biogeosciences.  117, G00N04, doi: 10.1029/2012/JG001950.

5) Griffiths, N.A., Tank, J.L., Roley, S.S., and Stephen, M.L.  2012.  Decomposition of maize leaves and grasses in restored agricultural streams.  Freshwater Science. 31: 848-864. doi: 10.1899/11-095.1

4) Roley, S.S., Tank, J.L., Stephen, M.L., Johnson, L.T., Beaulieu, J.J., and Witter, J.D.  2012.  Floodplain restoration enhances denitrification and reach-scale nitrogen removal in an agricultural stream.  Ecological Applications 22:281-297. doi:10.1890/11-0381.1

3) Roley, S.S. and R.M. Newman. 2008. Predicting Eurasian watermilfoil invasions in Minnesota.  Lake and Reservoir Management.  24: 361-369. doi: 10.1080/07438140809354846

*nominee, LaBounty Award for Best Paper, North American Lake Management Society*

2) Roley, S.S. and R.M. Newman.  2006.  The developmental performance of the milfoil weevil, Euhrychiopsis lencontei (Coleoptera: Curculionidae), on Eurasian, northern, and hybrid (Eurasian x northern) watermilfoils.  Environmental Entomology. 35:121-126

1) Roley, S.  2003. The distribution of macroinvertebrates in the Schoolcraft-Mississippi river-lake system.  Bemidji State University Journal of Student Research.  19:97-103.