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. 
 
Meeting the challenge of interacting threats in freshwater ecosystems: A call to scientists and managers
Craig, L. S., J.D. Olden, A.H. Arthington, S.A. Entrekin, Charles P. Hawkins, John J. Kelly, Theodore A. Kennedy, et al. 2018. “Meeting the Challenge of Interacting Threats in Freshwater Ecosystems: A Call to Scientists and Managers”. Elem Sci Anth 5: 72. doi:http://doi.org/10.1525/elementa.256.
Organic matter and nutrient inputs from large wildlife influence ecosystem function in the Mara River, Africa
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): 2558-74. doi:10.1002/ecy.2509.
Organic matter loading by hippopotami causes subsidy overload resulting in downstream hypoxia and fish kills
Dutton, Christopher L., Amanda L. Subalusky, Stephen K. Hamilton, Emma J. Rosi, and D.M. Post. 2018. “Organic Matter Loading by Hippopotami Causes Subsidy Overload Resulting in Downstream Hypoxia and Fish Kills”. Nature Communications 9 (1). doi:10.1038/s41467-018-04391-6.
Urban stream microbial communities show resistance to pharmaceutical exposure
Rosi, Emma J., Heather A. Bechtold, D. Snow, M. Rojas, Alexander J. Reisinger, and John J. Kelly. 2018. “Urban Stream Microbial Communities Show Resistance to Pharmaceutical Exposure”. Ecosphere 9 (1): e02041. doi:10.1002/ecs2.2041.
Changes in long-term water quality of Baltimore streams are associated with both gray and green infrastructure
Reisinger, Alexander J., Ellen Woytowitz, Emily Majcher, Emma J. Rosi, Kenneth T Belt, Jonathan M. Duncan, Sujay S. Kaushal, and Peter M. Groffman. 2018. “Changes in Long-Term Water Quality of Baltimore Streams Are Associated With Both Gray and Green Infrastructure”. Limnology and Oceanography 64 (S1): S60 - S76. doi:10.1002/lno.10947.
Using the raz-rru method to examine linkages between substrate, biofilm colonisation and stream metabolism in open-canopy streams
Hanrahan, B., Jennifer L. Tank, Arial Shogren, and Emma J. Rosi. 2018. “Using the Raz-Rru Method to Examine Linkages Between Substrate, Biofilm Colonisation and Stream Metabolism in Open-Canopy Streams”. Freshwater Biology 63 (12): 1610-24. doi:10.1111/fwb.13190.
Defining Extreme Events: A Cross-Disciplinary Review
McPhillips, Lauren E., Heejun Chang, Mikhail V. Chester, Y. Depietri, Erin Friedman, Nancy B Grimm, John S Kominoski, et al. 2018. “Defining Extreme Events: A Cross-Disciplinary Review”. Earth’s Future 6 (3): 441-55. doi:10.1002/2017EF000686.
Water Flow and Biofilm Cover Influence Environmental DNA Detection in Recirculating Streams
Shogren, Arial, Jennifer L. Tank, Scott P. Egan, Olivia August, Emma J. Rosi, B. Hanrahan, Mark A. Renshaw, Crysta Gantz, and Diogo Bolster. 2018. “Water Flow and Biofilm Cover Influence Environmental DNA Detection in Recirculating Streams”. Environmental Science & Technology 52: 8530-37. doi:10.1021/acs.est.8b01822.
A diverse suite of pharmaceuticals contaminates stream and riparian food webs
Richmond, Erinn K., Emma J. Rosi, David M. Walters, Jerker Fick, Stephen K. Hamilton, Tomas Brodin, Anna Sundelin, and Michael Grace. 2018. “A Diverse Suite of Pharmaceuticals Contaminates Stream and Riparian Food Webs”. Nature Communications 9 (1). doi:10.1038/s41467-018-06822-w.
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.