Sarah Roley

Assistant Professor

Washington State University - Tri-Cities

United States

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Dr. Sarah Roley is an Assistant Professor at Washington State University - Tri Cities in the United States. Her research focuses on nitrogen fixation, nutrient dynamics in aquatic and terrestrial ecosystems, and the interactions among microbial communities in various environmental contexts. Recent publications include studies on the global significance of nitrogen fixation, biofilm nutrient limitation, and the impact of land use change on ecosystem metabolism.

Articles (14)

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2025

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2024

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2024

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2024

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2023

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2022

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2022

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2022

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2021

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2021

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2021

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2021

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2021

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2020

Collaborators (7)

Robert Hall

University of Montana

UNITED STATES

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Helene Genet

Associate Professor

University of Alaska Fairbanks

UNITED STATES

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Shelby Rinehart

University of Rhode Island

UNITED STATES

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Daniel H Buckley

Professor

Cornell University

UNITED STATES

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Jesse Nippert

Professor

University of Kansas

UNITED STATES

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Nicholas Ray

Assistant Professor

University of Delaware

UNITED STATES

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Amy Marcarelli

Professor

Michigan Technological University

UNITED STATES

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Sarah Roley

Research Interests

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About

Articles (14)

Global Importance of Nitrogen Fixation Across Inland and Coastal Waters

Seasonal and watershed-scale patterns in biofilm nutrient limitation: Exploring silica’s influence

Tripartite interactions among free‐living, N‐fixing bacteria, arbuscular mycorrhizal fungi, and plants: Mutualistic benefits and community response to co‐inoculation

Rainfall events stimulate episodic associative nitrogen fixation in switchgrass

Coupled primary production and respiration in a large river contrasts with smaller rivers and streams

N and P constrain C in ecosystems under climate change: Role of nutrient redistribution, accumulation, and stoichiometry

Nitrogen fixation rates in forested mountain streams: Are sediment microbes more important than previously thought?

Watershed-scale Land Use Change Increases Ecosystem Metabolism in an Agricultural Stream

Long-term excess nitrogen fertilizer increases sensitivity of soil microbial community to seasonal change revealed by ecological network and metagenome analyses

Quantifying and correcting for pre-assay CO2 loss in short-term carbon mineralization assays

Intraspecific Variability in Root Traits and Edaphic Conditions Influence Soil Microbiomes Across 12 Switchgrass Cultivars

Nitrogen Fixation and Resorption Efficiency Differences Among Twelve Upland and Lowland Switchgrass Cultivars

Intraspecific Variability in Root Traits and Edaphic Conditions Influence Soil Microbiomes Across 12 Switchgrass Cultivars

Organic amendments change soil organic C structure and microbial community but not total organic matter on sub-decadal scales

Collaborators (7)

Robert Hall

Helene Genet

Shelby Rinehart

Daniel H Buckley

Jesse Nippert

Nicholas Ray

Amy Marcarelli

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