Janice Brahney
College of Natural Resources
Watershed Sciences

Educational Background
Biography
Janice received her doctorate in Geological Sciences from the University of Colorado. She holds an MSc in Earth Science and a BSc in Environmental Science, with a minor in Geology, from Simon Fraser University, B.C.
Teaching Interests
Limnology, Biogeochemistry, Paleoecology
Research Interests
The Environmental Biogeochemistry and Paleolimnology Laboratory sees watersheds as integrated systems linking climatology, hydrology, geology, and ecology. Lakes and their watersheds are sensitive to their environment and respond over both short and long timescales, making them valuable indicators of environmental health and global change. Our research uses multi-disciplinary approaches to investigate environmental processes and change and can be broadly separated into three main research themes: 1. Anthropogenic controls on nutrient cycles 2. Climate impacts on freshwater ecosystems 3. Applications of geochemistry to aquatic ecology
Awards
Publication of the Year Award , 2024
QCNR Watershed Sciences
Editors Choice Award, 2021
AAAS
2020 QCNR Graduate Mentor of the Year, 2021
Quinney College of Natural Resources
2019 QCNR Faculty Researcher of the Year, 2020
Quinney College of Natural Resources
2017 QCNR Undergraduate Research Mentor of the Year, 2018
Quinney College of Natural Resources
Editor's Award for highly cited research, 2016
Aeolian Research
Editor's Choice Award, 2016
American Chemical Society
NSERC Post-doctoral Fellowship, 2015
National Science and Engineering Research Council, Canada
NSERC Post-doctoral Fellowship, 2014
National Science and Engineering Research Council, Canada
Mercer Patriarch 2010 Publication of the Year Award, 2011
American Fisheries Society
Pre-Doctoral Award, 2010
Association for Women in Science
NSERC Post-Graduate Scholarship D, 2009
National Science and Engineering Research Council, Canada
NSERC Post-Graduate Scholarship D, 2008
National Science and Engineering Research Council, Canada
NSERC Postgraduate Scholarship A, 2005
National Science and Engineering Research Council, Canada
NSERC Postgraduate Scholarship A, 2004
National Science and Engineering Research Council, Canada
Elizabeth Sulzman Award, 2nd Place, 2014
Ecological Society of america
Outstanding Student Award, 2010
Association of Women Geoscientists
Rocky Mountain Association of Geologists, 2010
Dr. Marion Elder Grant Award, Runner Up, 2010
Canadian Federation of University Women
Dr. Marion Elder Grant Award, Runner Up, 2009
Canadian Federation of University Women
Award in Earth Science, 2006
Petro-Canada
CD Nelson Fellowship, 2004
NSERC Undergraduate Research Fellowship, 2004
National Science and Engineering Research Council, Canada
Simon Fraser University Open Scholarship, 2004
Simon Fraser University
NSERC Undergraduate Research Fellowship, 2003
National Science and Engineering Research Council, Canada
Simon Fraser University Open Scholarship, 2003
Simon Fraser University
Earth and Biological Sciences Award, 2001
University College Cork
Arts and Science Scholar Award-Outstanding Student, 2000
Concordia University
- Brahney, J., (2021). Dust and Fog effects on Inland Waters: The Encyclopedia of Inland Waters. Academic Press, Elsevier *
Publications | Book Chapters
An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.
Publications | Journal Articles
Academic Journal
- González-Olalla, J.M, Brahney, J., (2025). Diverse dust sources and warming trigger cyanobacteria abundance in freshwater ecosystems in the western United States. Environmental Research, 278, doi: 10.1016/j.envres.2025.121663
- Wen, J., Chan, S.C, Aanderud, Z.T, Baron, J.S, Chandra, S., Elser, J.J, Leifi, D.T, Suenaga, E., Waring, B., Brahney, J., (2025). Experimental evidence of dust-driven shifts in production, chlorophyll a, and community composition in mountain lakes. Limnology and Oceanography, 70:7, 1913-1929. doi: 10.1002/lno.70061
- Nielson, J.R, Brahney, J., (2025). Quantifying Dust Nutrient Mobility Through an Alpine Watershed. Journal of Geophysical Research: Biogeosciences, 130:1, doi: 10.1029/2024jg008175
- Belontz, S.L, Brahney, J., Caplan, C.E, Dillon, E., Yan, T., Dominguez, G., (2025). Combining Submicron Spectroscopy Techniques (AFM-IR and O-PTIR) To Detect and Quantify Microplastics and Nanoplastics in Snow from a Utah Ski Resort. Environmental Science and Technology, 59:26, 13362-13373. doi: 10.1021/acs.est.4c12170
- Chang, H., Granek, E., Gannon, A., Wolfand, J.M, Brahney, J., (2025). Convergence Research for Microplastic Pollution at the Watershed Scale. Environments Mdpi, 12:6, doi: 10.3390/environments12060187
- Brahney, J., Heindel, R.C, Gill, T.E, Carling, G., González-Olalla, J.M, Hand, J., Mallia, D.V, Munroe, J.S, Perry, K., Putman, A.L, Skiles, S.M, Adams, B., Aanderud, Z., Aarons, S., Aguirre, D., Ardon-Dryer, K., Blakowski, M.B, Creamean, J.M, Fernandez, D., Foroutan, H., Gaston, C., Hahnenberger, M., Hoch, S., Jones, D.K, Kelly, K.E, Lang, O.I, LeMonte, J., Reynolds, R., Singh, R.P, Sweeney, M., Merrill, T., (2024). Dust in the Critical Zone: North American case studies. Earth-Science Reviews, 258, doi: 10.1016/j.earscirev.2024.104942
- Sujon, S., Fabiszak, A., Brahney, J., Moor, K., (2024). Wavelength Sensitive Plastic Photodissolution: Elucidating Quantum Yield Trends for Solar Activation Spectra. Environmental Science & Technology, 58:52, 23138-23147.
- Mangum, A.L, Carling, G.T, Bickmore, B.R, Webb, N., Leifi, D.T, Brahney, J., Fernandez, D.P, Rey, K.A, Nelson, S.T, Burgener, L., LeMonte, J.J, Thompson, A.N, Newingham, B.A, Duniway, M.C, Aanderud, Z.T, (2024). Characterizing variability in geochemistry and mineralogy of western US dust sources. Aeolian Research, 70-71, doi: 10.1016/j.aeolia.2024.100941
- Kopáček, J., Brahney, J., Kaňa, J., Kopáček, M., Porcal, P., Stuchlík, E., (2024). The concentration of organic nitrogen in mountain lakes is increasing as a result of reduced acid deposition and climate change. Science of The Total Environment, 950, 175363. doi: 10.1016/j.scitotenv.2024.175363
- Farruggia, M.J, Brahney, J., Tanentzap, A.J, Brentrup, J.A, Brighenti, L.S, Chandra, S., Cortés, A., Fernandez, R.L, Fischer, J.M, Forrest, A.L, Jin, Y., Larrieu, K., McCullough, I.M, Oleksy, I.A, Pilla, R.M, Rusak, J.A, Scordo, F., Smits, A.P, Symons, C.C, Tang, M., Woodman, S.G, Sadro, S., (2024). Wildfire smoke impacts lake ecosystems. Global Change Biology, 30:6, doi: 10.1111/gcb.17367
- Daniels, J., Liang, L., Benedict, K.B, Brahney, J., Rangel, R., Weathers, K.C, Ponette-González, A.G, (2024). Satellite-based aerosol optical depth estimates over the continental U.S. during the 2020 wildfire season: Roles of smoke and land cover. Science of the Total Environment, 921
- Gianniny, G., Stark, J.M, Abbott, B.W, Lee, R., Brahney, J., (2024). Soil temperature and moisture as key controls of phosphorus export in mountain watersheds. Science of the Total Environment, 921
- King, L., Devey, M., Leavitt, P.R, Power, M.J, Brothers, S., Brahney, J., (2024). Anthropogenic forcing leads to an abrupt shift to phytoplankton dominance in a shallow eutrophic lake. Freshwater Biology
- Gonzallez Ollala, J.M, Powell, J.A, Brahney, J., (2023). Dust storms increase the tolerance of phytoplankton to thermal and pH changes. Global Change Biology, doi: http://dx.doi.org/10.1111/gcb.17055
- Xiao, S., Cui, Y., Brahney, J., Mahowald, N.M, Li, Q., (2023). Long-distance atmospheric transport of microplastic fibres influenced by their shapes. Nature Geoscience, 16:10, 863-870.
- Wang, J., Guo, X., Brahney, J., Xu, Z., Hu, Y., Sheng, W., Chen, Y., Li, M., Guo, W., (2023). Growth of grasses and forbs, nutrient concentration, and microbial activity in soil treated with microbeads. Environmental Pollution, 324
- Murray, D., Neilson, B.T, Brahney, J., (2023). Beaver Pond Geomorphology Influences Pond Nitrogen Retention and Denitrification. Journal of Geophysical Research: Biogeosciences, 128:4
- King, L., Brahney, J., Daly, S., Paul, M.J, Salk, K.R, Brothers, S., (2023). Primary production modeling identifies restoration targets for shifting shallow, eutrophic lakes to clear-water regimes. Freshwater Science, 42:1, 44-57.
- Huston, G.P, Lopez, M.L, Cheng, Y., King, L., Duxbury, L.C, Picard, M., Thomson-Laing, G., Myler, E., Helbing, C.C, Kinnison, M.T, Saros, J.E, Gregory-Eaves, I., Monchamp, M.E, Wood, S.A, Armbrecht, L., Ficetola, G.F, Kurte, L., Von Eggers, J., Brahney, J., Parent, G., Sakata, M.K, Doi, H., Capo, E., (2023). Detection of fish sedimentary DNA in aquatic systems: A review of methodological challenges and future opportunities. Environmental DNA
- Scholz, J., Brahney, J., (2022). Evidence for multiple potential drivers of increased phosphorus in high-elevation lakes. Science of the Total Environment, 825
- Xu, Z., Belmont, P., Brahney, J., Gellis, A.C, (2022). Sediment source fingerprinting as an aid to large-scale landscape conservation and restoration: A review for the Mississippi River Basin. Journal of Environmental Management, 324
- Lukens, E., Neilson, B.T, Williams, K.H, Brahney, J., (2022). Evaluation of Hydrograph Separation Techniques with Uncertain End-member Composition. Hydrologic Processes, 36:9, doi: https://doi.org/10.1002/hyp.14693
- Jiao, X., Dong, Z., Brahney, J., Parteli, E.J, Li, F., Augusto, M., Wei, T., (2022). Uranium isotopes of aeolian dust deposited in northern Tibetan Plateau glaciers: Implications for tracing aeolian dust provenance. Fundamental Research, 2:5, 716-726.
- Wu, R., Dong, Z., Cheng, X., Brahney, J., Jiao, X., Wu, L., (2022). Heavy metal levels and sources in suspended particulate matters of the glacier watersheds in Northeast Tibetan Plateau. Frontiers in Environmental Science, 10
- Wen, J., Brahney, J., Lin, Y., Ma, Z., Sun, N., Zheng, J., Ji, H., Kang, H., Du, B., Liang, G., Umair, M., Liu, C., (2022). The scaling of leaf nitrogen and phosphorus along a phosphorus availability gradient in a subtropical forest. Plant Ecology, 223:8, 995-1006.
- Hammill, E., Pendleton, M., Brahney, J., Kettenring, K., Atwood, T., (2022). Metal concentrations in wetland plant tissues influences transfer to terrestrial food webs. Ecotoxicology, 31:5, 836-845.
- Evangeliou, N., Tichý, O., Eckhardt, S., Zwaaftink, C.G, Brahney, J., (2022). Sources and fate of atmospheric microplastics revealed from inverse and dispersion modelling: From global emissions to deposition. Journal of Hazardous Materials, 432
- Allen, D., Allen, S., Abbasi, S., Baker, A., Bergmann, M., Brahney, J., Butler, T., Duce, R.A, Eckhardt, S., Evangeliou, N., Jickells, T., Kanakidou, M., Kershaw, P., Laj, P., Levermore, J., Li, D., Liss, P., Liu, K., Mahowald, N., Masque, P., Materić, D., Mayes, A.G, McGinnity, P., Osvath, I., Prather, K.A, Prospero, J.M, Revell, L.E, Sander, S.G, Wright, S., (2022). Microplastics and nanoplastics in the marine-atmosphere environment. Nature Reviews Earth and Environment, 3:6, 393-405.
- Jiao, X., Dong, Z., Parteli, E.J, Brahney, J., Wei, T., Augusto, M., Nie, J., Ren, J., Qin, X., (2022). Uranium Isotopic Composition and Constraints on the Provenance of the Qinghai-Tibet Plateau's Surface Dust. Journal of Geophysical Research: Earth Surface, 127:3
- Burpee, B.T, Saros, J.E, Nanus, L., Baron, J., Brahney, J., Christianson, K.R, Ganz, T., Heard, A., Hundey, B., Koinig, K.A, Kopáček, J., Moser, K., Nydick, K., Oleksy, I., Sadro, S., Sommaruga, R., Vinebrooke, R., Williams, J., (2022). Identifying factors that affect mountain lake sensitivity to atmospheric nitrogen deposition across multiple scales. Water Research, 209
- Hammill, E., Pendleton, M., Brahney, J., Kettenring, K., Atwood, T., (2022). Metal concentrations in wetland plant tissues influences transfer to terrestrial food webs. Ecotoxicology
- Brahney, J., Mahowald, N., Prank, M., Cornwell, G., Klimont, Z., Matsui, H., Prather, K.A, (2021). Constraining the atmospheric limb of the plastic cycle. Proceedings of the National Academy of Sciences of the United States of America, 118:16
- Frei, R.J, Lawson, G.M, Norris, A.J, Cano, G., Vargas, M.C, Kujanpää, E., Hopkins, A., Brown, B., Sabo, R., Brahney, J., Abbott, B.W, Toor, G.S, (2021). Limited progress in nutrient pollution in the U.S. caused by spatially persistent nutrient sources. PLOS ONE, 16:11, e0258952. doi: 10.1371/journal.pone.0258952
- Wei, T., Brahney, J., Dong, Z., Kang, S., Zong, C., Guo, J., Yang, L., Qin, X., (2021). Hf-Nd-Sr Isotopic Composition of the Tibetan Plateau Dust as a Fingerprint for Regional to Hemispherical Transport. Environmental Science and Technology, 55:14, 10121-10132.
- Murray, D., Neilson, B.T, Brahney, J., (2021). Source or Sink? Quantifying beaver pond influence on non-point source pollutant transport in the the Intermountain West. Journal of Environmental Management, 285, doi: https://doi.org/10.1016/j.jenvman.2021.112127
- Clancy, N.G, Brahney, J., Dunnigan, J., Budy, P., (2021). Effects of a diatom ecosystem engineer (Didymosphenia geminata) on stream food webs: Implications for native fishes. Canadian Journal of Fisheries and Aquatic Sciences, 78:2, 154-164.
- McKnight, E.A, Swanson, H., Brahney, J., Hik, D.S, (2021). The physical and chemical limnology of yukon’s largest lake, lhù’ààn mân’ (Kluane lake), prior to the 2016 ‘aäy chù’ diversion. Arctic Science, 7:3, 655-678.
- Brahney, J., Hallerud, M., Heim, E., Hahnenberger, M., Sukumaran, S., (2020). Plastic rain in protected areas of the United States. Science, 368:6496, 1257-1260.
- Elser, J.J, Wu, C., González, A.L, Shain, D.H, Smith, H.J, Sommaruga, R., Williamson, C.E, Brahney, J., Hotaling, S., Vanderwall, J., Yu, J., Aizen, V., Aizen, E., Battin, T.J, Camassa, R., Feng, X., Jiang, H., Lu, L., Qu, J.J, Ren, Z., Wen, J., Wen, L., Woods, H.A, Xiong, X., Xu, J., Yu, G., Harper, J.T, Saros, J.E, (2020). Key rules of life and the fading cryosphere: Impacts in alpine lakes and streams.. Global change biology, 26:12, 6644-6656.
- Clancy, N.G, Draper, J.P, Wolf, J.M, Abdulwahab, U.A, Pendleton, M.C, Brothers, S., Brahney, J., Weathered, J., Hammill, E., Atwood, T., (2020). Protecting endangered species in the USA requires both public and private land conservation. Scientific Reports, 10:1
- Brahney, J., Wetherbee, G., Sexstone, G.A, Youngbull, C., Strong, P., Heindel, R.C, (2020). A new sampler for the collection and retrieval of dry dust deposition. Aeolian Research, 45
- Blais-Stevens, A., Clague, J.J, Brahney, J., Lipovsky, P., Haeussler, P.J, Menounos, B., (2020). Evidence for large Holocene earthquakes along the Denali fault in southwest Yukon, Canada. Environmental and Engineering Geoscience, 66:1
- Brahney, J., Bothwell, M.L, Capito, L., Gray, C.A, Null, S., Menounos, B., Curtis, P.J, (2020). Glacier recession alters stream water quality characteristics facilitating bloom formation in the benthic diatom Didymosphenia geminata. Science of the Total Environment
- Crawford, J.T, Hinckley, E.S, Litaor, M.I, Brahney, J., Neff, J.C, (2019). Evidence for accelerated weathering and sulfate export in high alpine environments. Environmental Research Letters, 14:12, 124092.
- Kopáček, J., Kaňa, J., Bičárová, S., Brahney, J., Navrátil, T., Norton, S.A, Porcal, P., Stuchlík, E., (2019). Climate change accelerates recovery of the Tatra Mountain lakes from acidification and increases their nutrient and chlorophyll a concentrations. Aquatic Sciences, 81:4
- Courtney Mustaphi, C.J, Brahney, J., Aquino-López, M.A, Goring, S., Orton, K., Noronha, A., Czaplewski, J., Asena, Q., Paton, S., Panga Brushworth, J., (2019). Guidelines for reporting and archiving <sup>210</sup>Pb sediment chronologies to improve fidelity and extend data lifecycle. Quaternary Geochronology, 52, 77-87.
- Brahney, J., Ballantyne, A.P, Vandergoes, M., Baisden, T., Neff, J.C, (2019). Increased Dust Deposition in New Zealand Related to Twentieth Century Australian Land Use. Journal of Geophysical Research: Biogeosciences, 124:5, 1181-1193.
- Epperly, J., Witt, A., Haight, J., Washko, S., Atwood, T., Brahney, J., Brothers, S., Hammill, E., (2018). Relationships between borders, management agencies, and the likelihood of watershed impairment. PLoS ONE, 13:9
- Mahowald, N.M, Scanza, R., Brahney, J., Goodale, C.L, Hess, P.G, Moore, J.K, Neff, J., (2017). Aerosol Deposition Impacts on Land and Ocean Carbon Cycles. Current Climate Change Reports, 3:1, 16–31.
- Brahney, J., Menounos, B., Wei, A., Curtis, P.J, (2017). Determining annual cryosphere storage contributions to streamflow using historical hydrometric records. Hydrological Processes
- Brahney, J., Weber, F., Foord, V., Janmaat, J., Curtis, P.J, (2017). Evidence for a climate-driven hydrologic regime shift in the Canadian Columbia Basin. Canadian Water Resources Journal/Revue canadienne des ressources hydriques, 42:2, 179–192.
- Stoddard, J.L, Van Sickle, J., Herlihy, A.T, Brahney, J., Paulsen, S., Peck, D.V, Mitchell, R., Pollard, A.I, (2016). Continental-Scale Increase in Lake and Stream Phosphorus: Are Oligotrophic Systems Disappearing in the United States?. Environmental science & technology, 50:7, 3409–3415.
- Brahney, J., Ballantyne, A., Kociolek, P., Leavitt, P., Farmer, G., Neff, J., (2015). Ecological changes in two contrasting lakes associated with human activity and dust transport in western Wyoming. Limnology and Oceanography, 60:2, 678–695.
- Brahney, J., Mahowald, N., Ward, D.S, Ballantyne, A.P, Neff, J.C, (2015). Is atmospheric phosphorus pollution altering global alpine Lake stoichiometry?. Global Biogeochemical Cycles, 29:9, 1369–1383.
- Brahney, J., Ballantyne, A., Kociolek, P., Spaulding, S., Otu, M., Porwoll, T., Neff, J., (2014). Dust mediated transfer of phosphorus to alpine lake ecosystems of the Wind River Range, Wyoming, USA. Biogeochemistry, 120:1-3, 259–278.
- Brahney, J., Ballantyne, A.P, Turner, B.L, Spaulding, S.A, Otu, M., Neff, J.C, (2014). Separating the influences of diagenesis, productivity and anthropogenic nitrogen deposition on sedimentary δ<sup>15</sup>N variations. Organic Geochemistry, 75, 140-150.
- Brahney, J., Ballantyne, A., Sievers, C., Neff, J., (2013). Increasing Ca 2+ deposition in the western US: the role of mineral aerosols. Aeolian Research, 10, 77–87.
- Ballantyne, A.P, Brahney, J., Fernandez, D., Lawrence, C., Saros, J., Neff, J., (2011). Biogeochemical response of alpine lakes to a recent increase in dust deposition in the Southwestern, US. Biogeosciences, 8, 2689.
- Brahney, J., Routledge, R., Bos, D.G, Pellatt, M.G, (2010). Changes to the productivity and trophic structure of a sockeye salmon rearing lake in British Columbia. North American Journal of Fisheries Management, 30:2, 433–444.
- Brahney, J., Clague, J.J, Edwards, T.W, Menounos, B., (2010). Late Holocene paleohydrology of Kluane Lake, Yukon Territory, Canada. Journal of Paleolimnology, 44:3, 873–885.
- Brahney, J., Clague, J.J, Menounos, B., Edwards, T.W, (2008). Geochemical reconstruction of late Holocene drainage and mixing in Kluane Lake, Yukon Territory. Journal of Paleolimnology, 40:1, 489–505.
- Brahney, J., Clague, J.J, Menounos, B., Thomas, W., (2008). Timing and cause of water level fluctuations in Kluane Lake, Yukon Territory, over the past 5000 years. Quaternary Research, 70:2, 213–227.
- Brahney, J., Bos, D.G, Pellatt, M.G, Edwards, T.W, Routledge, R., (2006). The influence of nitrogen limitation on d15N and carbon: nitrogen ratios in sediments from sockeye salmon nursery lakes in British Columbia, Canada. Limnology and Oceanography, 51:5, 2333–2340.
In-House Journal
Public or Trade Journal
An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.
Publications | Technical Reports
AES Reports
Research Reports
- Kopp, K., Endter-Wada, J.L, Baker, M.A, Brahney, J., Chikamoto, Y., Kettenring, K., Neilson, B.T, Null, S., Rivers, E., Rosenberg, D.E, Schmidt, J.C, Shilton, R., Tarboton, D.G, Torres-Rua, A., Wang, S., Wheaton, J.M, Wurtsbaugh, W.A, Yost, M., Zhang, W., (2021). Utah State University 2021 Report to the Governor on Utah’s Land, Water, and Air.
Other Reports
An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.
Publications | Other
Bulletins
Other
- Dong, Z., Brahney, J., Kang, S., Elser, J., Wei, T., Jiao, X., Shao, Y., (2020). Aeolian dust transport, cycle and influences in high-elevation cryosphere of the Tibetan Plateau region: New evidences from alpine snow and ice. Earth-Science Reviews
- Moser, K.A, Baron, J.S, Brahney, J., Oleksy, I.A, Saros, J.E, Hundey, E.J, Sadro, S.A, Kopáček, J., Sommaruga, R., Kainz, M.J, Strecker, A.L, Chandra, S., Walters, D.M, Preston, D.L, Michelutti, N., Lepori, F., Spaulding, S.A, Christianson, K.R, Melack, J.M, Smol, J.P, (2019). Mountain lakes: Eyes on global environmental change. Global and Planetary Change
- Brahney, J., (2007). PALEOLIMNOLOGY OF KLUANE LAKE. Simon Fraser University
An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.