IGN 3-9
Adding animals to the equation: Trophic interactions mediate carbon cycling in arctic tundra

Tuesday, August 11, 2015
345, Baltimore Convention Center
Natalie Boelman, Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY
Laura Gough, Biology Department, University of Texas at Arlington, Arlington, TX
Kevin L. Griffin, Lamont Doherty Earth Observatory, Columbia University, NY
Jennie R. McLaren, Biological Sciences, University of Texas at El Paso, El Paso, TX
Edward Rastetter, Marine Biological Laboratory
Rebecca J. Rowe, Department of Natural Resources and the Environment, University of New Hampshire, Durham, NH
Animals have a functional role in the global C cycle by mediating physical, chemical and biological processes that influence dynamics in C biogeochemistry. Animals alter C fluxes to and from most major C pools and affect pool sizes - thus omitting their role could be misrepresenting the biosphere’s contribution to local and global C budgets. Although arctic tundra is a critical ecosystem to global C cycling, surprisingly few empirical studies, and only one modeling study, have accounted for arctic fauna. Understanding how trophic interactions mediate C cycling will provide unprecedented mechanistic understanding to improve future predictions of tundra C biogeochemistry.