Stable Isotope Ratio Facility for Environmental Research, Department of Biology 257 S. 1400 E. University of Utah, Salt Lake City, UT 84112-0820 United States
Department of Forest Science, Oregon State University, Corvallis, OR 97331 United States ;
Department of Forest Science, Oregon State University, Corvallis, OR 97331 United States ;
Department of Forest Science, Oregon State University, Corvallis, OR 97331 United States ;
Department of Forest Science, Oregon State University, Corvallis, OR 97331 United States ;
Stable Isotope Ratio Facility for Environmental Research, Department of Biology 257 S. 1400 E. University of Utah, Salt Lake City, UT 84112-0820 United States ;