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Ecosystem Ecology Group

800 532 Stroud Water Research Center

About the Group

The Ecosystem Ecology Group focuses on interactions among physical, chemical, and biological elements of riverine ecosystems that organize ecological behavior at local and regional scales. We are also interested in the effects of global change (land use, atmospheric deposition, emergent contaminants) on the structure and function of streams and rivers, and the need for more socio-ecological perspectives on conservation and restoration of running water ecosystems.

Ecosystem Ecology Staff

Photo of Stephanie Bernasconi hiking in the mountains

Stephanie Bernasconi

Staff Scientist, Part-Time Environmental Educator
Sara Geleskie Damiano

Sara Damiano

Staff Scientist
Headshot of Michael Gentile.

Michael Gentile

Staff Scientist
Rachel Johnson with an EnviroDIY Monitoring Station.

Rachel Leonard

Research Engineer Technician
Marc Peipoch, Ph.D.

Marc Peipoch, Ph.D.

Assistant Research Scientist

Ecosystem Ecology News

The Viscosity Effect: A Newly Found Connection Between the Riparian Zone and Water Quality
The Viscosity Effect: A Newly Found Connection Between the Riparian Zone and Water Quality
A new Stroud Center study shows that the density of water plays a previously overlooked role in nutrient and carbon cycling in freshwater ecosystems.
Two scientists paddle on the Brandywine Creek in Pennsylvania during an algae bloom.
New Way to Trace Algae Origins Could ID Sources of Water Pollution
Real-time chlorophyll sensors can be used to determine the origins of algae in rivers and streams. 
Publication title with image of a mayfly
Metabolism and soil water viscosity control diel patterns of nitrate and DOC in a low order temperate stream
Oviedo-Vargas, D., M. Peipoch, and C. Dow. 2022. Journal of Geophysical Research: Biogeosciences 127(5): e2021JG006640.
Algal bloom in Brandywine Creek where it flows under a railroad bridge.
Who’s Polluting Our Water? Scientists’ New Way to Trace Algae Origins Could Tell Us
Not all algae are harmful but too much can be deadly. Why? Because when they die, the blooms feed bacteria that rob the water of oxygen. 
Publication title with image of a mayfly
Deciphering the origin of riverine phytoplankton using in situ chlorophyll sensors
Peipoch, M., and S. Ensign. 2022. Limnology and Oceanography Letters 7(2): 159–166.
Myriah Wadley taking a stream sample.
Where Passion Meets Purpose: Myriah Wadley on Environmental Science and Education
Wadley is excited to share her passion for the environment with her community through boots-in-the-water educational experiences. “I want learners to feel more connected to the world around them.”