David Manning

David Manning is an Assistant Professor in the Biology Department at the University of Nebraska Omaha, affiliated with the College of Arts and Sciences. His research focuses on biogeochemical processes in freshwater ecosystems, particularly nutrient cycling, decomposition dynamics, and the impacts of land use and climate change. He has conducted studies on continental-scale patterns of elemental transport, stream litter breakdown, and the effects of nutrient enrichment on ecosystem functions.

His work integrates experimental approaches with global syntheses, addressing questions about how environmental changes influence aquatic-terrestrial linkages. Key areas of investigation include the stoichiometry of organic matter decomposition, the role of fine particles in riverine systems, and mercury bioaccumulation in fish populations. His research also explores the consequences of disturbances like dam removal on stream-riparian food webs and ecosystem resilience.

Notable contributions include collaborative continental-scale studies funded by NSF, such as the ConFines project examining fine particle fluxes. His findings on nutrient-stimulated litter decomposition and sediment properties’ influence on primary production highlight interdisciplinary approaches to understanding ecosystem responses to environmental pressures.