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. 
 
Pharmaceutical Compounds and Ecosystem Function: An Emerging Research Challenge for Aquatic Ecologists
Rosi-Marshall, Emma J., and Todd V. Royer. 2012. “Pharmaceutical Compounds and Ecosystem Function: An Emerging Research Challenge for Aquatic Ecologists”. Ecosystems 15: 867-80. doi:10.1007/s10021-012-9553-z.
A practical method for measuring integrated solar radiation reaching streambeds using photodegrading dyes
Bechtold, Heather A., Emma J. Rosi-Marshall, Dana R Warren, and Jonathan J. Cole. 2012. “A Practical Method for Measuring Integrated Solar Radiation Reaching Streambeds Using Photodegrading Dyes”. Freshwater Science. The Society for Freshwater Science, 1070-77. http://www.jnabs.org/doi/abs/10.1899/12-003.1.
Temporal variation in organic carbon spiraling in Midwestern agricultural streams
Griffiths, N.A., J.L. Tank, Todd V. Royer, T. J. Warrner, T.C. Frauendorf, Emma J. Rosi-Marshall, and M.R. Whiles. 2012. “Temporal Variation in Organic Carbon Spiraling in Midwestern Agricultural Streams”. Biogeochemistry 108: 149-69. doi:10.1007/s10533-011-9585-z.
Ecosystem ecology meets adaptive management: food web response to a controlled flood on the Colorado River, Glen Canyon
Cross, Wyatt F., Colden V. Baxter, Kevin C. Donner, Emma J. Rosi-Marshall, Theodore A. Kennedy, Robert O. Hall, Holly A. Wellard Kelly, and R.S. Rogers. 2011. “Ecosystem Ecology Meets Adaptive Management: Food Web Response to a Controlled Flood on the Colorado River, Glen Canyon”. Ecol. Appl. 21: 2016-33.
Invasion and production of New Zealand mud snails in the Colorado River, Glen Canyon
Cross, Wyatt F., Emma J. Rosi-Marshall, Kathrine E. Behn, Theodore A. Kennedy, Robert O. Hall, A.E. Fuller, and Colden V. Baxter. 2010. “Invasion and Production of New Zealand Mud Snails in the Colorado River, Glen Canyon”. Biol. Invasions 12: 3033-43. doi:10.1007/s10530-010-9694-y.
Occurrence of maize detritus and a transgenic insecticidal protein (Cry1Ab) within the stream network of an agricultural landscape
Tank, J.L., Emma J. Rosi-Marshall, Todd V. Royer, M.R. Whiles, N.A. Griffiths, T.C. Frauendorf, and D.J. Treering. 2010. “Occurrence of Maize Detritus and a Transgenic Insecticidal Protein (Cry1Ab) Within the Stream Network of an Agricultural Landscape”. Proc. Nat. Acad. Sci. 107: 17645-50. doi:10.1073/pnas.1006925107.
Responses of stream macroinvertebrates to Bt maize leaf detritus
Chambers, C.P., M.R. Whiles, Emma J. Rosi-Marshall, J.L. Tank, Todd V. Royer, N.A. Griffiths, M.A. Evans-White, and A. Stojak. 2010. “Responses of Stream Macroinvertebrates to Bt Maize Leaf Detritus”. Ecol. Appl. 20: 1949-60.
A review of allochthonous organic matter dynamics and metabolism in streams
Tank, J.L., Emma J. Rosi-Marshall, N.A. Griffiths, S.A. Entrekin, and M.L. Stephen. 2010. “A Review of Allochthonous Organic Matter Dynamics and Metabolism in Streams”. J. N. Am. Benthol. Soc. 29: 118-46. http://www.caryinstitute.org/reprints/Tank_2010_JNABS.pdf.
The role of federal agencies in the application of scientific knowledge
Pouyat, Richard V., Kathleen C. Weathers, Richard Haeuber, Gary M. Lovett, A.M. Bartuska, Lynn M. Christenson, Stuart E. G. Findlay, et al. 2010. “The Role of Federal Agencies in the Application of Scientific Knowledge”. Front. Ecol. Environ. 8: 322-28.
Seasonal variation in nutrient limitation of microbial biofilms colonizing organic and inorganic substrata in streams
Hoellein, T.J., J.L. Tank, John J. Kelly, and Emma J. Rosi-Marshall. 2010. “Seasonal Variation in Nutrient Limitation of Microbial Biofilms Colonizing Organic and Inorganic Substrata in Streams”. Hydrobiologia 649: 331-45.