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Ecosystem Ecology

Publication title with image of a mayfly

Draining the landscape: how do nitrogen concentrations in riparian groundwater and stream water change following milldam removal?

 350 210 Stroud Water Research Center

Lewis, E., S. Inamdar, A.J. Gold, K. Addy, T.L.E. Trammell, D. Merritts, M. Peipoch, P.M. Groffman, J. Hripto, M. Sherman, J. Kan, R. Walter, and E. Peck. 2021. Journal of Geophysical Research Biogeosciences 126(8), e2021JG006444.

2021 entomology summer intern group photo.

Meet Our 2021 Summer Interns

 800 450 Stroud Water Research Center

Our summer internship program, now in its 49th year, has ushered through hundreds of interns seeking meaningful learning experiences.

Water Quality Modeling to Support Source Water and Aquatic Life Protection, Octoraro Creek, Pennsylvania and Maryland

 800 532 Stroud Water Research Center

This project supports water quality monitoring and development of a water quality model to guide an alternative restoration plan for the Octoraro Creek Watershed. The data, model, and plan will…

Restoration Project Impact Assessment in Support of Delaware River Watershed Initiative

 800 532 Stroud Water Research Center

This project quantifies the positive impact of one or several restoration projects associated with the Delaware River Watershed Initiative, namely those funded by the National Fish and Wildlife Foundation’s Delaware…

Phytoplankton Dynamics at the Brandywine River

 800 532 Stroud Water Research Center

High-frequency temperature, oxygen, and chlorophyll sensors, canoe float trips, and nutrient monitoring are the tools being used to study how much and how fast algae grow while they travel down…

Monitoring Fish Populations and Stream Habitat Quality for the National Park Service

 800 532 Stroud Water Research Center

This project monitors biological conditions, water quality, habitat integrity, and fish at 37 sites in 10 national parks in the National Capital Region Network around Washington, D.C. The findings of…

Mitigating Agricultural Pollution of Fresh Water and Combating Climate Change by Restoring Soil Health Through Conservation and Organic Agricultural Practices

 800 532 Stroud Water Research Center

Plowing, disking, synthetic fertilizers, and pesticides have damaged the health of agricultural soils, resulting in reduced rainfall infiltration and storage, increased stormwater and pollutant runoff, degraded streams, and contaminated groundwater.…

Low-head Milldams as Hotspots for Denitrification and Nitrogen Consumption: Hydrologic and Biogeochemical Controls

 800 532 Stroud Water Research Center

Dam removal, especially low-head milldams, have increased in recent years with the highest removal rate in the mid-Atlantic U.S. While improvement in fish habitat and reduction in financial liability have…

Long-Term Research in Environmental Biology (LTREB): Trajectory for the Recovery of Stream Ecosystem Structure and Function During Reforestation

 800 532 Stroud Water Research Center

Stream restoration in the United States is a multibillion-dollar industry. Yet long-term monitoring of its effectiveness is virtually nonexistent. Stroud Center scientists are studying restoration within White Clay Creek that…

Evaluating How Conventional, Conservation, and Organic Farming Management Practices Enhance Soil Health and Improve Water Quality

 800 532 Stroud Water Research Center

This project investigates how different agricultural management practices influence water quality and soil health. Using Rodale Institute’s 37-year-old Farming Systems Trial and a recent transition to organic farming at the…