Chair, Dept. Ecology and Evolutionary Biology, Princeton University, 2014-current.

Member, Dean of Faculty's Working Group on Environmental Studies, 2016-current.

Chair, Presidential Task Force on the Natural Sciences, 2014-current.

Director, Program in Environmental Studies, Princeton University, 2010-2015.

Lead Architect, Curriculum Revision for Certificate Program in Environmental Studies, Princeton University, 2011-2013.

Co-organizer (with William Gleason, Dept. English), Princeton University Environmental Humanities Initiative, Princeton University, 2010-current.

President’s Advisory Board, Cary Institute of Ecosystem Studies.  2012-current.

Director, Program in Environmental Studies, Princeton University, 2010-15.

Member, Search Committee for the Thomas A. and Currie C. Barron Family Professorship in Humanities and the Environment, Princeton University, 2013-14.

Executive Committee, Princeton Environmental Institute, 2008-current.

Executive Committee, Program in Environmental Engineering and Water Resources, 2010-current.

Lead Organizer, Symposium on “Nurturing Ideas and Scientists in Ecology: A Tribute to Bill Robertson”, Ecological Society of America, 2014.

Advisory Board, Princeton-Mellon Initiative in Architecture, Urbanism and the Humanities, Princeton University, 2013-current.

Co-Chair (with B. Bassler, Dept. Molecular Biology), Joint Search Committee for Faculty Position in Ecology, Evolutionary Biology, and Molecular Biology, 2014.

Faculty Associate, Department of Civil and Environmental Engineering, 2008-current.

Faculty Associate, Princeton Environmental Institute, 2004-current.

Faculty Fellows Program, Butler College, Princeton University, 2011-2015.

Faculty Fellows Program, Varsity Ice Hockey Team, Princeton University, 2006-current.

Organizer, Ecology and Evolutionary Biology Colloquium, 2013-14.

Co-Organizer (with Simon Levin), Festschrift for Dan Rubenstein, 2014.

Founder and Contributing Member, Biogeosciences Section, the Ecological Society of America, 2012-14.

Colloquium organizer, Dept. Ecology and Evolutionary Biology, Princeton University, 2013-14.

Invited Member, National Science Foundation Review Panel, Washington, DC, 2013. 

Invited Participant, Committee on Critical Research Needs in Tropical Ecology, US Department of Energy, Washington, D.C., 2012.

Member of Editorial Board, Annual Review of Ecology, Evolution and Systematics, 2005-2012.

Lead Author, Curriculum development grant on “A Real World Teaching Model”, Princeton University, 2010-12.

Colloquium organizer, Dept. Ecology and Evolutionary Biology, Princeton University, 2010-11.

Chair, Faculty Search Committees, Department of Ecology and Evolutionary Biology, 2010-2011.

Chair of Committee, External Review of the Dept. Environmental Science, Policy and Management, University of California Berkley, 2011.

Department Representative for Undergraduate Students, Dept. Ecology and Evolutionary Biology, Princeton University, 2008-10.

Member, Evaluation Committee for Grand Challenges Proposals, Princeton Environmental Institute, 2010.

Interdepartmental Committee, Program in Environmental Engineering and Water Resources, Princeton University, 2010.

Member, Committee on the Course of Study. Princeton University, 2008-10.

Invited Member, National Oceanographic and Atmospheric Administration Review Panel, Washington, D.C., 2009.                                                                                               

External Advisor and Reviewer, Search for Professor in Environmental Biology, Uppsala University SLU, Sweden, 2008.

Member of Editorial Board, Faculty 1000, 2005-07.

Faculty Representative, University Priorities Committee, 2005-06.

Affiliated Faculty, Program in Science, Technology and Environmental Policy, Princeton University, 2006.

Lecturer, Freshman Parents Weekend, Princeton University, 2006.

Organizer, Symposium on Multiple Resource Limitation in Terrestrial and Aquatic Ecosystems, Annual Meeting of the Ecological Society of America, Memphis, TN, 2006.

Reviewer, Hank Dobin Prize in Community-Based Independent Work, Princeton University, 2006.

Invited Member, Governing Council of the Ecological Society of America, 2004-06.

Chair, Graduate Education, Princeton Environmental Institute, 2002-06.

Lead Author, Development Grant on “A Novel Living Laboratory Teaching Model”, Princeton University, 2004.

Co-organizer, international conference on “Resiliency and Change in Ecological Systems,” Santa Fe Institute, Santa Fe, New Mexico, 2003.

Invited Participant, Conference on Ecosystems and Evolution, Stockholm, Sweden, July 2003.

Invited Participant, Biocomplexity in the Environment Awardees Meeting, the National Science Foundation, Washington, DC, 2003.

Invited Participant, Annual Collaborators’ Meeting for Hawaii Ecosystem Research Project, Hawaii, 2003.

Invited Participant, Conference on “Role of Interdisciplinary Studies in the Academy of the 21^st Century,” National Science Foundation, Washington, D.C., 2003.

Invited Participant, Annual Collaborators’ Meeting for NASA Amazon Forest Research Project, Bloomington, IN, 2003.

Invited Participant, Annual Collaborators’ Meeting for Hawaii Ecosystem Research Project, Hawaii, June 2002.

Invited Participant, Santa Fe Institute Science Board Meeting, Santa Fe, NM, 2002.

Chair and Lead Author, “Linking Ecological Biology and Geoscience: Challenges for Terrestrial Environmental Science,” White Paper Report Invited by the National Science Foundation. 

      (resulting in the establishment of a new funding program in “Biogeosciences”), 2002.

Invited Member of High Panel, The Stockholm Water Symposium, Stockholm, Sweden, 2002.

Panel Member, the National Science Foundation, Biocomplexity Program Evaluation Panel, Washington DC, 2002.

Testified to National Research Council/National Academy of Sciences Panel on the Geologic Record of Biosphere Dynamics Committee, Washington, DC, 2002.

Invited Participant, North American Carbon Program Methane Workshop, University of New Hampshire, Durham, NH, 2002.

Lead Organizer and Chair, Workshop sponsored by the National Science Foundation, Division of Earth Sciences, on “Linking Ecological Biology and Geosciences,” Madison, WI, 2001.

Invited Plenary Speaker, Gordon Conference on Modern Developments in Thermodynamics, Ventura, CA, 2001.

Chair and Lead Author, Report to the Provost on the Future of Environmental Biology at Cornell University, Ithaca, NY.  (Based on this report, Cornell University established a new initiative in “Biogeochemistry and Biocomplexity” with four new faculty lines and $3 million in university support.), 2001.

Invited Participant, North American Carbon Program Workshop, Boulder, CO, 2001.

Panel Member, National Science Foundation, Biocomplexity Evaluation Panel, Division of Earth Sciences, Washington, D.C., 2001.

International Field Course Taught, Tropical Ecosystems in the Hawaiian Islands (15 international students), 2001.

Co-Principal Investigator, Center for Biocomplexity, Princeton Environmental Institute, 2002-03.

Chair and Lead Author, Provost Committee on Basic Environmental Science, Cornell University, 2001.

Member, Steering Committee for the Program in Biogeochemistry and Environmental Change, Cornell University, 1997-2001.

Member, Environmental and Natural Resources Planning Council, Cornell University, 2000-2001.

Chair, Search Committee for Plant Physiological Ecologist, Dept. Ecology and Evolutionary Biology, Cornell University, 2001.

Member and Co-founder, Cornell University Stable Isotope Laboratory, Cornell University, 1998-2001.

Member, Steering Committee of the Science of Earth Systems Program, Cornell University, 1999-2001.

Invited Participant and Co-author of Final Report, National Science Foundation Workshop on the Terrestrial Carbon Cycle, Washington, D.C., 2000.

Invited Plenary Speaker, 2nd Chapman Conference on Global Biogeochemistry and the Gaia Hypothesis, Valencia, Spain, 2000.

Participant, Strategic Planning Groups in Biogeochemistry and Environmental Change, Cornell University, 1999.

Invited Plenary Speaker, Gordon Conference on “Ten Years of Catchment Science”, New Hampshire, 1999.

Invited Keynote Speaker, 7th Stockholm Water Symposium, Stockholm, Sweden, 1997.

Invited Representative to planning group on "Enhancing Integrated Science", Ecological Society of America, Geological Society of America, and United States Geological Survey, 1997-98.

Invited Representative, White House sponsored conference on "Evaluating the Health of our Nation’s Environmental Resources", US National Science and Technology Council, Washington, D.C., 1996.

Invited Participant, International Scientific Committee on Problems of the Environment (SCOPE) meeting on “Comparative Analysis of Nitrogen Cycling in the Temperate and Tropical Americas," Chile, 1996.

 

Invited Talks and Seminars, 2002-Present:

Invited Speaker, Dept. Molecular Biology, Princeton University, Princeton, NJ, September 2014.

Invited Speaker, SLU University of Uppsala, Uppsala, Sweden, August 2014.

Invited Speaker, Kruger National Park Annual Meeting, South Africa, March 2014.

Invited Speaker, W.K. Kellogg Biological Station, Michigan State University, April 2013.

Invited Speaker, Hubbard Brook Ecosystem Study, All-investigator Meeting, July 2013.

Invited Speaker, Lafayette College, June 2013.

Invited Speaker, Kruger National Park Annual Meeting, South Africa, March 2013.

Invited Speaker, University of Georgia, Georgia, December 2012.

Invited Speaker, University of Cape Town, South Africa, November 2012.

Invited Speaker, The Institute for Limnology, Uppsala University, Uppsala, Sweden, June 2012.

Invited Speaker, Dept. of Ecology, SLU Uppsala University, Uppsala, Sweden, May 2012.

Invited Speaker, Kruger National Park Annual Meeting, South Africa, March 2012.

Invited Speaker, Columbia University, New York, NY, February 2012.

Invited Speaker, Harvard University, Cambridge, MA, November 2011.

Invited Speaker, College of New York at Stony Brook, NY, October 2011.

Invited Speaker, Rutgers University, NJ, February 2011.

Invited Speaker, Tupper Seminar, Smithsonian Tropical Research Institute, Panama, June 2010.

Invited Speaker, EGGS seminar, Dept of Geosciences, Princeton University, Princeton, NJ, March 2010.

Invited Speaker, Geophysical Fluid Dynamics Laboratory, National Oceanographic and Atmospheric Administration Climate Program, Princeton, NJ, February 2010.

Invited Speaker, Dept. of Civil and Environmental Engineering, Princeton University, November 2009.

Invited Speaker, Agouron Institute Meeting on Global Nitrogen Cycle, AZ, October 2009.

Invited Speaker, Cornell University, Ithaca, NY, April 2009.

Invited Speaker, Brown University, Providence, RI, November 2008.

Invited Speaker, Stroud Water Research Center, Avondale, PA, April 2007.

Invited Speaker, Dept. of Biology, Virginia Polytechnic Institute, Blacksburg, VA, January 2007.

Invited Speaker, Center on Global Change and Nicholas School of the Environment, Duke University, Durham, NC, December 2006.

Invited Speaker, Department of Botany, University of Cape Town, South Africa, August 2006.

Invited Speaker, Symposium on Multiple Resource Limitation in Terrestrial and Aquatic Ecosystems, 91^st Annual Meeting of the Ecological Society of America, Memphis, TN, August 2006.

Invited Speaker and Opponent Ph.D. thesis defense, Department of Ecology and Environmental Research, Swedish University of Agricultural Sciences. Uppsala, Sweden, April 2006.

Invited Speaker, Institute of Ecosystem Studies, Millbrook, NY, April 2006.

Invited Speaker, Department of Geophysical Sciences, University of Chicago, IL, April 2006.

Invited Speaker, Centre for Population Ecology, Silwood Park, Imperial College, England, January 2006.

Invited Speaker, Forest Science Department, Oregon State University, OR, May 2005.

Invited Speaker, Department of Global Ecology, Stanford University, CA, April 2005.

Invited Speaker, Symposium on Biogeochemistry: Nitrogen Dynamic, 90^th Annual meeting of the Ecological Society of America, Montreal, Canada, August 2005.

Invited Keynote Speaker, International Workshop: Dissolved Organic Matter and the Cycling of Carbon, Nutrients and Metals, University of Bayreuth, Germany, September 2005.

Invited Participant, NEON Biogeochemistry Workshop, American Institute of Biological Science, Boulder CO, July 2004.

Invited Participant, Annual Collaborators’ Meeting for Hawaii Ecosystem Research Project, Hawaii, June 2004.

Invited Speaker, 89^th Ecological Society of America Meeting, Portland, Oregon, August 2004.

Invited Speaker, Gordon Research Conference on “The Metabolic Basis of Ecology,” Lewiston, Maine, 2004.

Invited Speaker, Department of Ecology and Evolutionary Biology, University of California, Irvine, California, March 2004.

Invited Speaker, Department of Biological Sciences. University of Calgary, Alberta, Canada,               February 2004.

Invited Speaker, Smithsonian Environmental Research Center, Edgewater, MD, October 2003.

Symposium Organizer and Speaker, Symposium on “Future Developments in Biogeosciences,” Annual meeting of the Ecological Society of America, Savannah, Georgia, August 2003.

Invited Speaker, 40^th Anniversary Meeting of the Hubbard Brook Ecosystem Study, Plymouth, New Hampshire, July 2003.

Invited Speaker, Department of Biology, University of New Mexico, Albuquerque, NM, April 2003.

Invited Speaker, Graduate Program in Ecology, Duke University, Durham, NC, March 2003.

Invited Speaker, Ecology and Evolution Graduate Program, Rutgers University, NJ, January 2003.

Invited Speaker, Symposium on “Stoichiometry in Ecological Systems,” Annual Meeting of the Ecology Society of America, Tucson, AZ, August 2002.

Invited Speaker, 4^th Trilateral Meeting on “Biodiversity Across Scales,” Hokkaido, Japan, July 2002.

Invited Speaker, The Marine Biological Laboratory at Woods Hole, The Ecosystem Center, Woods Hole, MA, February 2002.

 

Other Professional Activities:

Interviews and Press Coverage: National Public Radio "All Things Considered" and "Morning Edition", the New York Times, the Washington Post, Time Magazine, the Christian Science Monitor, U.S. TV, Swedish TV (interview on Swedish Water Prize), Swedish Radio (interview), ScienceNOW, Science Magazine, Science Update in Nature, World Watch Magazine, BBC Worldwide News, Equinox Magazine, Science News, Svenska Dagbladet (Swedish daily newspaper), and several other U.S. daily newspapers.

Grant Reviewer: National Science Foundation, US Department of Energy, US Department of Agriculture, US Environmental Protection Agency, Cottrell College Science Grants Program - Research Corporation, U.S. Forest Service.

Manuscript Reviewer: Nature, Science, Proceedings of the National Academy of Sciences, Nature Geoscience, Nature Climate Change, Global Change Biology, Ecology, Biogeochemistry, BioScience, Canadian Journal of Forest Research, Ecology, Canadian Journal of Fisheries and Aquatic Science, Ecological Applications, Ecological Monographs, Ecosystems, Encyclopedia of Earth System Science, Environmental Science and Technology, Freshwater Biology, Global Biogeochemical Cycles, Holarctic Ecology, Hydrobiologia, Journal of the North American Benthological Association, Limnology and Oceanography, Oikos, Tellus, Water, Air and Soil Pollution, among others.