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. 
 
Give and Take: A Watershed Acid Rain Mitigation Experiment Increases Baseflow Nitrogen Retention but Increases Stormflow Nitrogen Export
Marinos, R. E., John L. Campbell, Charles T. Driscoll, Gene E. Likens, William H. McDowell, Emma J. Rosi, Lindsey E. Rustad, and Emily S. Bernhardt. 2018. “Give and Take: A Watershed Acid Rain Mitigation Experiment Increases Baseflow Nitrogen Retention But Increases Stormflow Nitrogen Export”. Environmental Science & Technology 52 (22): 13155-65. doi:10.1021/acs.est.8b03553.
High mortality in aquatic predators of mosquito larvae caused by exposure to insect repellent
Almeida, Rafael M., Barbara A. Han, Alexander J. Reisinger, Catherine Kagemann, and Emma J. Rosi. 2018. “High Mortality in Aquatic Predators of Mosquito Larvae Caused by Exposure to Insect Repellent”. Biology Letters 14 (10): 20180526. doi:10.1098/rsbl.2018.0526.
The influence of a semi-arid sub-catchment on suspended sediments in the Mara River, Kenya
Dutton, Christopher L., Amanda L. Subalusky, Shimon C. Anisfeld, Libon Njoroge, Emma J. Rosi, and D.M. Post. 2018. “The Influence of a Semi-Arid Sub-Catchment on Suspended Sediments in the Mara River, Kenya”. PLOS ONE 13 (2): e0192828. doi:10.1371/journal.pone.0192828.
Partitioning assimilatory nitrogen uptake in streams: an analysis of stable isotope tracer additions across continents
Tank, Jennifer L., E. Marti, T. Riis, D. von Schiller, Alexander J. Reisinger, Walter K. Dodds, M.R. Whiles, et al. 2017. “Partitioning Assimilatory Nitrogen Uptake in Streams: An Analysis of Stable Isotope Tracer Additions across Continents”. Ecological Monographs 88 (1): 120-38. doi:10.1002/ecm.1280.
Pharmaceuticals and personal care products (PPCPs) are ecological disrupting compounds (EcoDC)
Richmond, Erinn K., Michael Grace, John J. Kelly, Alexander J. Reisinger, Emma J. Rosi, and David M. Walters. 2017. “Pharmaceuticals and Personal Care Products (PPCPs) Are Ecological Disrupting Compounds (EcoDC)”. Elem Sci Anth 5: 66. doi:10.1525/elementa.252.
Recovery and resilience of urban stream metabolism following Superstorm Sandy and other floods
Reisinger, Alexander J., Emma J. Rosi, Heather A. Bechtold, Thomas R. Doody, Sujay S. Kaushal, and Peter M. Groffman. 2017. “Recovery and Resilience of Urban Stream Metabolism Following Superstorm Sandy and Other Floods”. Ecosphere 8 (4): e01776. doi:10.1002/ecs2.1776.
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.