A new method to reconstruct quantitative food webs and nutrient flows from isotope tracer addition experiments

Andres Lopez-Sepulcre, Matthieu Bruneaux, Sarah Michelle Collins, Rana El-Sabaawi, Alexander S Flecker & Steven A Thomas
Understanding how nutrients flow through food webs is central in ecosystem ecology. Tracer addition experiments are powerful tools to reconstruct nutrient flows by adding an isotopically enriched element into an ecosystem, and tracking its fate through time. Historically, the design and analysis of tracer studies have varied widely, ranging from descriptive studies to modeling approaches of varying complexity. Increasingly, isotope tracer data is being used being used to compare ecosystems and analyze experimental manipulations. Currently,...
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