Skip to main content

Dr. Emma J. Rosi

Aquatic Ecologist | PhD, 2002, University of Georgia

freshwater, invasive species, human impacts

845 677-7600 x232

Emma Rosi is advancing our understanding of how land use, urbanization, and climate change shape freshwater ecosystems, with projects exploring environmental contaminants such as pharmaceutical and personal care products, aging wastewater infrastructure, environmental implications of agricultural GMOs, and the effects of dams.

Rosi directs the Baltimore Ecosystem Study (BES), a National Science Foundation Long Term Ecological Research site. As part of BES, Rosi is exploring the role that failing wastewater infrastructure plays in polluting streams and creating antibiotic-resistant ‘superbugs’. She is also revealing how prescription and illicit drugs that enter our waterways impact freshwater quality and aquatic life.

In addition to her work on human-driven threats to freshwaters, Rosi co-leads a long-term project, in collaboration with Yale University, investigating how wildebeest and hippos shape the food web in the Kenyan reach of Africa’s Mara River.

Rosi is a leader in the field of novel and emerging freshwater contaminants and serves on the Ecological Processes and Effects Committee of the US Environmental Protection Agency’s Science Advisory Board. She also sits on the editorial board of the journal Ecosystems and is a reviewer for the National Science Foundation.

Campbell, John L., Lindsey E. Rustad, Scott W. Bailey, Emily S. Bernhardt, Charles T. Driscoll, Mark B. Green, Peter M. Groffman, et al. 2021. “Watershed Studies At The Hubbard Brook Experimental Forest: Building On A Long Legacy Of Research With New Approaches And Sources Of Data”. Hydrological Processes 35 (1). Wiley. doi:10.1002/hyp.14016.
Reisinger, Alexander J., Jennifer L. Tank, Robert O. Hall, Emma J. Rosi, Michelle A. Baker, and Laurel Genzoli. 2021. “Water Column Contributions To The Metabolism And Nutrient Dynamics Of Mid-Sized Rivers”. Biogeochemistry 153 (1). Springer Science and Business Media LLC: 67-84. doi:10.1007/s10533-021-00768-w.
Pickett, Steward T. A., Morgan Grove, Shannon L. LaDeau, Emma J. Rosi, and Mary L. Cadenasso. 2020. “Urban Ecology As An Integrative Science And Practice.”. In Urban Ecology: Its Nature And Challenges, 122-143. CABI. doi:10.1079/9781789242607.0122.
Walters, D. M., W.F. Cross, T.A. Kennedy, C.V. Baxter, R.O. Hall, and Emma J. Rosi. 2020. “Food Web Controls On Mercury Fluxes And Fate In The Colorado River, Grand Canyon”. Science Advances 6 (20). American Association for the Advancement of Science (AAAS): eaaz4880. doi:10.1126/sciadv.aaz4880.
Fischhoff, Ilya R., Tao Huang, Stephen K. Hamilton, Barbara A. Han, Shannon L. LaDeau, Richard S. Ostfeld, Emma J. Rosi, and Christopher T. Solomon. 2020. “Parasite And Pathogen Effects On Ecosystem Processes: A Quantitative Review”. Ecosphere 11 (5). Wiley. doi:10.1002/ecs2.3057.
Dutton, Christopher L., Amanda L. Subalusky, Stephen K. Hamilton, Ella C. Bayer, Laban Njoroge, Emma J. Rosi, and David M. Post. 2020. “Alternative Biogeochemical States Of River Pools Mediated By Hippo Use And Flow Variability”. Ecosystems. Springer Science and Business Media LLC. doi:10.1007/s10021-020-00518-3.
Robson, Stephanie V., Emma J. Rosi, Erinn K. Richmond, and Michael Grace. 2020. “Environmental Concentrations Of Pharmaceuticals Alter Metabolism, Denitrification, And Diatom Assemblages In Artificial Streams”. Freshwater Science 39 (2). University of Chicago Press: 256-267. doi:10.1086/708893.
Almeida, R. M., Stephen K. Hamilton, Emma J. Rosi, N. Barros, C. R. C. Doria, A. S. Flecker, A. S. Fleischmann, A. J. Reisinger, and F. Roland. 2020. “Hydropeaking Operations Of Two Run-Of-River Mega-Dams Alter Downstream Hydrology Of The Largest Amazon Tributary”. Frontiers In Environmental Science 8.
Green, M. B., L. H. Pardo, S. W. Bailey, J. L. Campbell, W. H. McDowell, E. S. Bernhardt, and Emma J. Rosi. 2020. “Predicting High-Frequency Variation In Stream Solute Concentrations With Water Quality Sensors And Machine Learning”. Hydrological Processes.
Ogata, E. M., M. A. Baker, Emma J. Rosi, T. B. Smart, D. Long, and Z. T. Aanderud. 2020. “Nutrients And Pharmaceuticals Structure Bacterial Core Communities In Urban And Montane Stream Biofilms”. Frontiers In Microbiology 11.
Pickett, Steward T. A., M. L. Cadenasso, M. E. Baker, L. E. Band, C. G. Boone, G. L. Buckley, Peter M. Groffman, et al. 2020. “Theoretical Perspectives Of The Baltimore Ecosystem Study: Conceptual Evolution In A Social-Ecological Research Project”. Bioscience 70 (4): 297-314+.
Kelso, Julia E., Emma J. Rosi, and Michelle A. Baker. 2020. “Towards More Realistic Estimates Of Dom Decay In Streams: Incubation Methods, Light, And Non-Additive Effects”. Freshwater Science 39 (3). University of Chicago Press: 559-575. doi:10.1086/710218.
Subalusky, Amanda L., Christopher L. Dutton, Emma J. Rosi, Linda M. Puth, and David M. Post. 2020. “A River Of Bones: Wildebeest Skeletons Leave A Legacy Of Mass Mortality In The Mara River, Kenya”. Frontiers In Ecology And Evolution 8. Frontiers Media SA. doi:10.3389/fevo.2020.00031.
Pickett, Steward T. A., Mary L. Cadenasso, Morgan Grove, E. Irwin, Emma J. Rosi, and C.M. Swan. 2019. Science For A Sustainable City. Yale University Press.
Dutton, Christopher L., Amanda L. Subalusky, Troy D. Hill, Julie C. Aleman, Emma J. Rosi, Kennedy B. Onyango, Kanuni Kanuni, Jenny A. Cousins, A. C. Staver, and D.M. Post. 2019. “A 2000-Year Sediment Record Reveals Rapidly Changing Sedimentation And Land Use Since The 1960S In The Upper Mara-Serengeti Ecosystem”. Science Of The Total Environment 664: 148 - 160. doi:10.1016/j.scitotenv.2019.01.421.
Schoelynck, Jonas, Amanda L. Subalusky, Eric Struyf, Christopher L. Dutton, D. Unzue-Belmonte, Bart Van de Vijver, D.M. Post, Emma J. Rosi, Patrick Meire, and Patrick J. Frings. 2019. “Hippos (Hippopotamus Amphibius): The Animal Silicon Pump”. Science Advances 5 (5): eaav0395. doi:10.1126/sciadv.aav0395.
Richmond, Erinn K., Emma J. Rosi, Alexander J. Reisinger, B. Hanrahan, Ross M. Thompson, and Michael Grace. 2019. “Influences Of The Antidepressant Fluoxetine On Stream Ecosystem Function And Aquatic Insect Emergence At Environmentally Realistic Concentrations”. Journal Of Freshwater Ecology 34 (1): 513 - 531. doi:10.1080/02705060.2019.1629546.
Shogren, Arial, Jennifer L. Tank, Emma J. Rosi, Martha M. Dee, Shannon L. Speir, Diogo Bolster, and Scott P. Egan. 2019. “Transport And Instream Removal Of The Cry1Ab Protein From Genetically Engineered Maize Is Mediated By Biofilms In Experimental Streams”. Plos One 14 (5): e0216481. doi:10.1371/journal.pone.0216481.
Almeida, Rafael M., Stephen K. Hamilton, Emma J. Rosi, João Durval Arantes, Nathan Barros, Gina Boemer, Anderson Gripp, et al. 2019. “Limnological Effects Of A Large Amazonian Run-Of-River Dam On The Main River And Drowned Tributary Valleys”. Scientific Reports 9 (1). Springer Science and Business Media LLC. doi:10.1038/s41598-019-53060-1.
Subalusky, Amanda L., Christopher L. Dutton, Laban Njoroge, Emma J. Rosi, and D.M. Post. 2018. “Organic Matter And Nutrient Inputs From Large Wildlife Influence Ecosystem Function In The Mara River, Africa”. Ecology 99 (11): 2558 - 2574. doi:10.1002/ecy.2509.

Current Projects