S
Steven A. Thomas
Researcher at University of Nebraska–Lincoln
Publications - 77
Citations - 4778
Steven A. Thomas is an academic researcher from University of Nebraska–Lincoln. The author has contributed to research in topics: Ecosystem & Guppy. The author has an hindex of 35, co-authored 72 publications receiving 4204 citations. Previous affiliations of Steven A. Thomas include Cornell University & Idaho State University.
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Ecological stoichiometry in freshwater benthic systems: recent progress and perspectives
TL;DR: Ecological stoichiometry deals with the mass balance of multiple key elements in ecological systems, largely developed in the pelagic zone of lakes, and has been successfully applied to topics ranging from population dynamics to biogeochemical cycling.
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Local adaptation in Trinidadian guppies alters ecosystem processes
Ronald D. Bassar,Michael C. Marshall,Andrés López-Sepulcre,Eugenia Zandonà,Sonya K. Auer,Joseph Travis,Catherine M. Pringle,Alexander S. Flecker,Steven A. Thomas,Douglas F. Fraser,David N. Reznick +10 more
TL;DR: It is demonstrated that populations of Trinidadian guppies (Poecilia reticulata), characterized by differences in phenotypic and population-level traits, differ in their impact on ecosystem properties and demonstrates that evolution can significantly affect both ecosystem structure and function.
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Factors affecting ammonium uptake in streams – an inter‐biome perspective
Jackson R. Webster,Patrick J. Mulholland,Jennifer L. Tank,H. Maurice Valett,Walter K. Dodds,Bruce J. Peterson,William B. Bowden,Clifford N. Dahm,Stuart E. G. Findlay,Stanley V. Gregory,Nancy B. Grimm,Stephen K. Hamilton,Sherri L. Johnson,Eugènia Martí,William H. McDowell,Judy L. Meyer,Donna D'angelo Morrall,Steven A. Thomas,Wilfred M. Wollheim +18 more
TL;DR: The Lotic Intersite Nitrogen eXperiment (LINX) was a coordinated study of the relationships between North American biomes and factors governing ammonium uptake in streams as mentioned in this paper.
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Fish Distributions and Nutrient Cycling in Streams: Can Fish Create Biogeochemical Hotspots?
Peter B. McIntyre,Peter B. McIntyre,Alexander S. Flecker,Michael J. Vanni,James M. Hood,Brad W. Taylor,Steven A. Thomas +6 more
TL;DR: The spatial distribution of fish could indeed create hotspots of nutrient recycling during the dry season in this species-rich tropical stream, and the prevalence of patchy distributions of stream fish and invertebrates suggests that hotspot of consumer nutrient recycling may often occur in stream ecosystems.
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Stream denitrification and total nitrate uptake rates measured using a field 15N tracer addition approach
Patrick J. Mulholland,H. Maurice Valett,Jackson R. Webster,Steven A. Thomas,Lee W. Cooper,Stephen K. Hamilton,Bruce J. Peterson +6 more
TL;DR: In this paper, the authors measured denitrification and total nitrate uptake rates in a small stream (East Fork of Walker Branch in eastern Tennessee) using a new field 15 N tracer addition and modeling approach that quantifies these rates for entire stream reaches.