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. 
 
Controls on spatial and temporal variation of nutrient uptake in three Michigan headwater streams
Hoellein, T.J., J.L. Tank, Emma J. Rosi-Marshall, S.A. Entrekin, and G.A. Lamberti. 2007. “Controls on Spatial and Temporal Variation of Nutrient Uptake in Three Michigan Headwater Streams”. Limnology and Oceanography 52 (5): 1964-77. doi:10.4319/lo.2007.52.5.1964.
Macroinvertebrate secondary production in 3 forested streams of the upper Midwest, USA
Entrekin, S.A., Emma J. Rosi-Marshall, J.L. Tank, T.J. Hoellein, and G.A. Lamberti. 2007. “Macroinvertebrate Secondary Production in 3 Forested Streams of the Upper Midwest, USA”. Journal of the North American Benthological Society 26 (3): 472-90. doi:10.1899/06-071.1.
Quantity, controls and functions of large woody debris in Midwestern USA streams
Cordova, Jean M., Emma J. Rosi-Marshall, A. M. Yamamuro, and G.A. Lamberti. 2007. “Quantity, Controls and Functions of Large Woody Debris in Midwestern USA Streams”. River Research and Applications 23 (1): 21-33. doi:10.1002/(ISSN)1535-146710.1002/rra.v23:110.1002/rra.963.
Toxins in transgenic crop byproducts may affect headwater stream ecosystems
Rosi-Marshall, Emma J., J.L. Tank, Todd V. Royer, M.R. Whiles, M.A. Evans-White, C.P. Chambers, N.A. Griffiths, J. Pokelsek, and M.L. Stephen. 2007. “Toxins in Transgenic Crop Byproducts May Affect Headwater Stream Ecosystems”. Proceedings of the National Academy of Sciences 104 (41): 16204-8. doi:10.1073/pnas.0707177104.
Ecological Responses to Trout Habitat Rehabilitation in a Northern Michigan Stream
Rosi-Marshall, Emma J., Ashley H. Moerke, and G.A. Lamberti. 2006. “Ecological Responses to Trout Habitat Rehabilitation in a Northern Michigan Stream”. Environmental Management 38 (1): 99-107. doi:10.1007/s00267-005-0177-3.
Decline in the quality of suspended fine particulate matter as a food resource for chironomids downstream of an urban area
Rosi-Marshall, Emma J. 2004. “Decline in the Quality of Suspended Fine Particulate Matter As a Food Resource for Chironomids Downstream of an Urban Area”. Freshwater Biology 49 (5): 515-25. doi:10.1111/fwb.2004.49.issue-510.1111/j.1365-2427.2004.01205.x.
Quality of suspended fine particulate matter in the Little Tennessee River
Rosi-Marshall, Emma J., and J.L. Meyer. 2004. “Quality of Suspended Fine Particulate Matter in the Little Tennessee River”. Hydrobiologia 519 (1-3): 29-37. doi:10.1023/B:HYDR.0000026482.10915.15.
Invertebrate food webs along a stream resource gradient
Rosi-Marshall, Emma J., and J.B. Wallace. 2002. “Invertebrate Food Webs Along a Stream Resource Gradient”. Freshwater Biology 47 (1): 129-41. doi:10.1046/j.1365-2427.2002.00786.x.