Templer, PH, MC Mack, FS Chapin III, LM Christenson, JE Compton, HD Crook, William S. Currie, C Curtis, B Dail, CM D’Antonio, BA Emmett, H Epstein, CL Goodale, P Gundersen, SE Hobbie, K Holland, DU Hooper, BA Hungate, S Lamontagne, KJ Nadelhoffer, CW Osenberg, SS Perakis, P Schleppi, J Schimel, IK Schmidt, M Sommerkorn, J Spoelstra, A Tietema, WW Wessel and DR Zak.  Sinks for Nitrogen Inputs in Terrestrial Ecosystems: A Meta-Analysis of ¹⁵N Tracer Field Studies.  Ecology, In press.