Dr. Emma J. Rosi

Aquatic Ecologist | PhD, University of Georgia

Expertise
freshwater, invasive species, human impacts

845 677-7600 x232

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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 freshwater science and has conducted research on the role of  emerging contaminants shaping these systems.  Rosi serves on the  US Environmental Protection Agency’s Science Advisory Board and her research has implications for our understanding of anthropogenic stressors on freshwater ecosystems. 
 
Annual mass drownings of the Serengeti wildebeest migration influence nutrient cycling and storage in the Mara River
Subalusky, Amanda L., Christopher L. Dutton, Emma J. Rosi, and D.M. Post. 2017. “Annual Mass Drownings of the Serengeti Wildebeest Migration Influence Nutrient Cycling and Storage in the Mara River”. Proceedings of the National Academy of Sciences 114 (29): 7647-52. doi:10.1073/pnas.1614778114.
Scaling Dissolved Nutrient Removal in River Networks: A Comparative Modeling Investigation
Ye, Sheng, Alexander J. Reisinger, J.L. Tank, M. A. Baker, Robert O. Hall, Emma J. Rosi, and M. Sivapalan. 2017. “Scaling Dissolved Nutrient Removal in River Networks: A Comparative Modeling Investigation”. Water Resources Research 53 (11233463551412101): 9623-41. doi:10.1002/2017WR020858.
Drivers of nitrogen transfer in stream food webs across continents
Norman, B. M., M.R. Whiles, S. M. Collins, A.S. Flecker, Stephen K. Hamilton, S.L. Johnson, Emma J. Rosi, et al. 2017. “Drivers of Nitrogen Transfer in Stream Food Webs across Continents”. Ecology 98 (12): 3044-55. doi:10.1002/ecy.2009.
Synthetic chemicals as agents of global change
Bernhardt, Emily S., Emma J. Rosi, and M.O. Gessner. 2017. “Synthetic Chemicals As Agents of Global Change”. Frontiers in Ecology and the Environment 15 (2): 84-90. doi:10.1002/fee.1450.
Dynamic heterogeneity: a framework to promote ecological integration and hypothesis generation in urban systems
Pickett, Steward T. A., Mary L. Cadenasso, Emma J. Rosi, Kenneth T Belt, Peter M. Groffman, Morgan Grove, E. Irwin, et al. 2017. “Dynamic Heterogeneity: A Framework to Promote Ecological Integration and Hypothesis Generation in Urban Systems”. Urban Ecosystems 20 (1): 1-14. doi:10.1007/s11252-016-0574-9.
Extreme floods increase CO <sub>2</sub> outgassing from a large Amazonian river
Almeida, Rafael M., F.S. Pacheco, Nathan Barros, Emma J. Rosi, and Fábio Roland. 2017. “Extreme Floods Increase CO <sub>2< sub> Outgassing from a Large Amazonian River”. Limnology and Oceanography 62 (3): 989-99. doi:10.1002/lno.10480.
Acid rain mitigation experiment shifts a forested watershed from a net sink to a net source of nitrogen
Rosi-Marshall, Emma J., Emily S. Bernhardt, Donald C. Buso, Charles T. Driscoll, and Gene E. Likens. 2016. “Acid Rain Mitigation Experiment Shifts a Forested Watershed from a Net Sink to a Net Source of Nitrogen”. Proceedings of the National Academy of Sciences 113 (27): 7580-83. doi:10.1073/pnas.1607287113.
Antidepressants in stream ecosystems: influence of selective serotonin reuptake inhibitors (SSRIs) on algal production and insect emergence
Richmond, Erinn K., Emma J. Rosi-Marshall, Sylvia S. Lee, Ross M. Thompson, and Michael Grace. 2016. “Antidepressants in Stream Ecosystems: Influence of Selective Serotonin Reuptake Inhibitors (SSRIs) on Algal Production and Insect Emergence”. Freshwater Science 35 (3): 845-55. doi:10.1086/687841.
Metabolism, Gas Exchange, and Carbon Spiraling in Rivers
Hall, Robert O., J.L. Tank, M. A. Baker, Emma J. Rosi-Marshall, and E. R. Hotchkiss. 2016. “Metabolism, Gas Exchange, and Carbon Spiraling in Rivers”. Ecosystems 19 (1): 73-86. doi:10.1007/s10021-015-9918-1.
Methods for quantifying aquatic macroinvertebrate diets
Rosi-Marshall, Emma J., Holly A. Wellard Kelly, Robert O. Hall, and K. A. Vallis. 2016. “Methods for Quantifying Aquatic Macroinvertebrate Diets”. Freshwater Science 35 (1): 229-36. doi:10.1086/684648.