"Energy Budgets." . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "This component of the terrestrial-aquatic interaction group seeks to use the natural stable carbon isotope ratios and radiocarbon abundances to trace the movement of photosynthate from the terrestrial environment to the stream system at MS-117. In addition to estimating the total flux, we will also attempt to describe the relative fractions derived from modern primary production and that derived from delayed inputs of eroded peat. We will also seek to determine the coupling efficiency of these energy sources to the invertebrate faunal populations in the tundra soils and streams."@en . . . . . . . . . . . . . . . . "Energy flow in an arctic aquatic ecosystem"@en . . . "Food Chains." . . "Animals." . . "Radioisotopes." . . "Matter." . . "Biological Pathways." . . "Energy Sources." . . "Energy Models." . . "North America." . . "Years Living Radioisotopes." . . "Usa." . . "Terrestrial Ecosystems." . . "Carbon Isotopes." . . "Beta-minus Decay Radioisotopes." . . . . "Ecosystems." . . "Fuels." . . "Ecological Concentration." . . "Developed Countries." . . "Invertebrates." . . "Environmental Sciences." . . "Isotopes." . . "Organic Matter." . . "Carbon 14." . . "Radioecological Concentration." . . "Peat." . . "Even-even Nuclei." . . "Fossil Fuels." . . "Tundra." . . "Schell, D.M." . . "Light Nuclei." . . "Nuclei." . . "Alaska." . . "Beta Decay Radioisotopes." . . "Aquatic Ecosystems." . .