Bio

Academic Appointments


Administrative Appointments


  • Chairman of the Board of Trustees, Consortium for Ocean Leadership (2013 - Present)
  • Adjunct Professor Victoria, University of Wellington, New Zealand (2010 - Present)
  • Trustee, Consortium for Ocean Leadership (2009 - Present)
  • W.M. Keck Sr. Professor of Earth Sciences, Stanford University (2008 - Present)
  • Professor of Environmental Earth System Science, Stanford University (2007 - Present)
  • Senior Fellow, Woods Institute for the Environment, Stanford University (2004 - Present)
  • J. Frederick and Elisabeth B. Weintz University Fellow in Undergraduate Education, Stanford University (2004 - Present)
  • Victoria P. and Roger W. Sant Director of the Earth Systems Program, Stanford University (2003 - 2012)
  • Co-Director, Interdisciplinary Graduate Program in Environment and Resources, Stanford University (2003 - 2005)
  • Founding Director, Interdisciplinary Graduate Program in Environment and Resources, Stanford University (2001 - 2003)
  • Associate Chair, Geological and Environmental Sciences, Stanford University (2000 - 2004)
  • Senior Fellow Freeman Spogli Institute of International Studies, Stanford University (1998 - Present)
  • Professor of Geological and Environmental Sciences, Stanford University (1997 - 2007)
  • Adjunct Professor of Geology and Geophysics, Rice University (1997 - 2004)
  • Professor of Geology and Geophysics, Rice University (1994 - 1997)
  • Visiting Scientist, National Geophysical Data Center (1994 - 1996)
  • Master of Baker College, Rice University (1989 - 1994)
  • Visiting Scientist, Geology Department, University of New Mexico, Albuquerque, New Mexico (1988 - 1988)
  • Visiting Research Fellow, School of Earth Sciences, Victoria University of Wellington, New Zealand (1988 - 1988)
  • Assistant/Associate Professor of Geology, Rice University (1982 - 1994)
  • Visiting Assistant Professor of Earth Sciences, University of California, San Diego (1981 - 1982)
  • Lecturer in Earth Sciences, University of California, San Diego (1979 - 1980)

Honors & Awards


  • TED Speaker, TED (Technology, Entertainment, Design) (2010)
  • Richard W. Lyman Award, Stanford University (2009)
  • W.M. Keck Sr. Professorship in Earth Sciences, Stanford University (2008)
  • J. Frederick and Elisabeth Brewer Weintz University Fellowship, Stanford University (2004)
  • S.T. Lee Lecturer in Antarctic Studies, Victoria University of Wellington, New Zealand (2003)
  • Best Paper Award, Coral Reefs Journal, 1995, International Society for Reef Studies (1996)
  • Antarctic Service Medal, The United States of America (1988)

Boards, Advisory Committees, Professional Organizations


  • Committee Member, American Geophysical Union, Paleoceanography (1994 - 2000)
  • Member, steering committee, PEP-1 (Pole-Equator-Pole transects) (1995 - 1998)
  • Co-leader, Annual Records of Tropical Systems Activity (PAGES) (1995 - 1998)
  • Proposal Review Panel, Earth Systems History Program, NSF (1995 - 1997)
  • Member, U.S. Science Advisory Council, Ocean Drilling Program (1996 - 1999)
  • Ocean Drilling Program Fellowship Proposal Review Panel, NSF-USSAC (1996 - 1998)
  • Leader, Research on Ocean/Atmosphere Variability and Ecosystem Response in the Ross Sea (ROAVERRS) Program (1996 - 2002)
  • Consulting member, search committee, New sedimentology faculty, Lehigh University (1997 - 1998)
  • Earth Systems Program Steering Committee, Stanford University (1997 - Present)
  • Graduate Student Admissions Committee, G&ES, Stanford University (1997 - 2000)
  • Member, Oceans Faculty Search Committee, SES, Stanford University (1997 - 1998)
  • Lead adviser to 21 M.S. or Ph.D. students, Stanford University (1997 - Present)
  • Invited lecturer, Geophysical Fluid Dynamics Laboratory, Princeton; Princeton University, Department of Geology; Department of Mathematics and Applied Statistics, Rice University, Houston, Texas; Princeton University, Department of Ocean Sciences, UC San Diego (1997 - 1997)
  • Invited participant, Workshop on cross-validation of high-resolution climate proxies and instrument records, University of Washington; Warm Climates of the Tropics, International Center for Theoretical - Physics (ICTP), Trieste, Italy (1997 - 1997)
  • Chief Scientist Positions, ROAVERRS (Research on Ocean-Atmosphere Variability and Ecosystem Response in the Ross Sea), RVIB Palmer; Lake Titicaca piston coring, RV Neecho, May, 1997; Submersible Diving off Hawaii, RV Kaimikai O Kanaloa, DSRV Pisces V, Au (1997 - 1997)
  • Executive Committee member, USSAC, the U.S. National Committee for Ocean Drilling (1997 - 1999)
  • Co-leader, Submerged coral drilling, Galapagos Islands, RV Samba, June, 1998 (1998 - 1998)
  • Chief Scientist, ROAVERRS (Research on Ocean Atmosphere Variability and Ecosystem Response in the Ross Sea, RVIB N.B. Palmer, October-December, 1998) (1998 - 1998)
  • Session organizer and chair, History of El Nio, PAGES Pole-Equator-Pole Americas Transect Workshop, Merida, Venezuela (1998 - 1998)
  • Invited participant, PAGES Open Sciences Meeting, London; Sclerosponges as Paleoclimate indicators workshop, Miami (1998 - 1998)
  • Invited Speaker, American Quaternary Association Annual Meeting, Puerto Vallarta, Mexico; American Geophysical Union/American Society Limnology and Oceangraphy biennial meeting, San Diego; EastFest '98, Stanford; Stanford Parents Day Lectures; ENRON Corp (1998 - 1998)
  • Academic advisor to 19 Earth Systems students, 3 GES, and 2 IDM undergraduates, Stanford University (1998 - Present)
  • Elected alternate representative, electoral unit 2, faculty senate, Stanford University (1998 - 1999)
  • Member of CESP faculty (Center for Environmental Science and Policy), Stanford University (1998 - 2007)
  • Director, Stable Isotope Biogeochemistry Lab, Stanford University (1998 - Present)
  • Chair, Ad-hoc committee on development of Oceans curricular track, Stanford University (1998 - Present)
  • Session chair, COMPLEX workshop on the future of Ocean Scientific Drilling, Vancouver, Canada, May (1999 - 1999)
  • Invited participant and speaker, AESOPS Workshop, US Joint Global Ocean Flux Study, Keystone, Colorado, August (1999 - 1999)
  • Invited Speaker, Gordon Conference on Polar Marine Processes, Ventura; Dean's Seminar Series, School of Earth Sciences, Stanford; Institute for the Study of Planet Earth, University of Arizona, Tuscon; Peninsula Geological Society Seminar Series, Stanford (1999 - 1999)
  • Participant, Marine Geology and Geophysics cruise, Palmer Deep and Antarctic Peninsula, R/V Nathaniel B. Palmer March-April (1999 - 1999)
  • Leader, Annual Records of Tropical Systems (International Geosphere Biosphere Program IGBP/PAGES) (1999 - 2003)
  • Chair, Ion Microprobe Faculty Search Committee (1999 - 2000)
  • Member, Earth Sciences Advisory Council, Stanford University (1999 - Present)
  • Member, Provost's Committee on Environmental Science, Technology and Policy, Stanford University (1999 - Present)
  • Member, American Geophysical Union Paleoceanography and Paleoclimatology Focus Group (2000 - 2008)
  • Editor (with Jack Ditullio), American Geophysical Union, Antarctic Research Series monograph on Biogeochemistry of the Ross Sea Shelf (2000 - 2003)
  • Chief Scientist, PISCO (Paleoenvironmental Investigations of Sediment in the Coastal Ocean), RVIB L.M. Gould, April/May (2000 - 2000)
  • Invited participant and speaker, International Marine Geosciences Sampling (IMAGES) executive committee meeting, Woods Hole, MA; Shallow Water Drilling Workshop, St. Petersburg, FL; (2000 - 2000)
  • Session chair, Paleoclimate (2 sessions) (2000 - 2000)
  • Invited Speaker, University of California, Santa Barbara (2 talks); California Institute of Technology; University of California, Berkeley (2 talks), University of Idaho, Joint Global Ocean Flux Study Biogeochemistry Conference in Brest, France (2000 - 2000)
  • Associate Chair, Geological and Environmental Sciences, Stanford University (2000 - 2004)
  • Member, University Committee on Admissions and Financial Aid, Stanford University (2000 - 2003)
  • Elected representative, Academic Senate, Stanford University (2000 - 2002)
  • Distinguished Lecture Speaker, Ocean Drilling Program: Portland State University, Columbus State University, SUNY Albany, Duke University, SUNY Stonybrook (2001 - 2002)
  • Member, Steering Committee, ACE (Antarctic Climate Evolution), a new SCAR project (2001 - 2001)
  • Invited Speaker, ANTOSTRAT symposium, Erice, Italy, September (2001 - 2001)
  • Convener, First ARTS (Annual Records of Tropical Systems) Open Science Meeting, Noumea, New Caledonia, November (2001 - 2001)
  • Co-convener, IMAGES Southern Ocean Working Group conference, Bremerhaven, June (2001 - 2001)
  • Director, Interdisciplinary Ph.D. Program in Environment and Resources, Stanford University (2001 - 2005)
  • Chief Scientist, Marine Geology and Geophysics, Antarctic Peninsula, RV L.M. Gould (2002 - 2002)
  • Scientist, Deep submerisble diving expedition to the Gulf of Alaska, DSRV Alvin and RV Atlantis (2002 - 2002)
  • Scientist, Expedition to Eilat Israel to instrument coral reef for global change studies (2002 - 2002)
  • Member, Scientific Experts Group, IMAGES (2002 - 2008)
  • Member, Antarctic Research Vessel Oversight Committee (2002 - 2008)
  • Co-convener, IMAGES Southern Ocean Working Group conference II, Barcelona (2002 - 2002)
  • Invited Speaker, Climate Change in the Antarctic Peninsula Workshop, Hamilton, New York (2002 - 2002)
  • Provost's Lecturer, SUNY Stony Brook (2002 - 2002)
  • Invited participant, Conference on U.S. Participation (CUSP) in the Integrated Ocean Drilling Program, Washington D.C. (2002 - 2002)
  • Secretary, Paleoceanography and Paleoclimatology Focus Group, AGU (2002 - 2004)
  • Member of review panel, National Science Foundation Integrated Global C cycle (2002 - 2002)
  • Invited Participant, National Science Foundation Earth System History RFP panel, Washington D.C. July (2002 - 2002)
  • Invited Participant, Antarctic Climate Evolution Data/Model Integration Workshop, Amherst, MA (2002 - 2002)
  • Co-convener, IMAGES Southern Ocean Working Group conference, Barcelona, Spain (2002 - 2002)
  • Alternate Governor, Joint Oceanographic Institutions (2002 - 2003)
  • Member, CEE faculty search committee, Stanford University (2002 - 2002)
  • Leader, Lake coring team in Patagonia, Stanford University (2003 - 2003)
  • Faculty Leader, Stanford Travel Study Trip to Antarctica, Stanford University (2003 - 2003)
  • Member, Palmyra Atoll Consortium Leadership Committee (2003 - Present)
  • Member. Scheduling Committee, AGU Ocean Sciences Meeting (2003 - 2004)
  • Invited Participant, Scientific Planning Committee, Integrated Ocean Drilling Program transition meeting, Sapporo (2003 - 2003)
  • Governor, Joint Oceanographic Insitutions, Inc. (2003 - 2007)
  • Member, Next Generation Polar Research Vessel Design Committee (2003 - 2008)
  • Invited speaker, Holocene Climate Workshop, Eikom, Norway (2003 - 2003)
  • Faculty Leadership Committee, Stanford Institute for the Environment, Stanford University (2003 - 2009)
  • Director, Earth Systems Program, Stanford University (2003 - 2012)
  • Member, Program Committee, 2008 SCAR Open Sciences Congress, Hobart, Australia (2004 - 2006)
  • Faculty Leader, Stanford Travel Study Trip to Alaska, Stanford University (2004 - 2004)
  • Chief Scientist, Deep submerisble diving in the Hawaiian Islands and at Cross Seamount, DSRV Pisces V and RV Kanaloa o Kamaikai (2004 - 2004)
  • Invited Participant, SCAR (Scientific Committee on Antarctic Research) meeting (2004 - 2005)
  • Chair Science Committee, Palmyra Atoll Research Consortium (2004 - 2005)
  • Lecturer, Instituto de Verano, Universidad de Concepcion, Chile (2004 - 2004)
  • Invited Participant, SCAR (Scientific Committee on Antarctic Research) meeting, Bremen (2004 - 2004)
  • Invited Speaker, International Conference on Isotopes in Environmental Studies, Monoco (2004 - 2004)
  • Invited Speaker, Isotopes as climate tracers short course, IAEA, Trieste (2004 - 2004)
  • Co-Chair, Interdisciplinary Grants Committee, Stanford's Institute for the Environment, Stanford University (2004 - 2006)
  • Member, Faculty search committee in the area of Paleobiology, Stanford University (2004 - 2005)
  • Member, AGU Program Committee, AGU 2006 Joint Meeting, Baltimore (2005 - 2006)
  • Scientist, Marine Biology, Biogeochemistry, and Ocean Physics, Ross Sea, Antarctica, R/V Nathaniel (2005 - 2006)
  • Co-Chief Scientist, coral coring expedition to Palmyra Atoll, Stanford University (2005 - 2005)
  • Chief Scientist, Deep submerisble diving expedition from Samoa to Hawaii (2005 - 2005)
  • Faculty Leader, Stanford Travel Study Trip to Antarctica, Stanford University (2005 - 2005)
  • Leader, Expedition to easter Island for coral coring and lake sediment coring (2005 - 2005)
  • Elected Chair, International Atomic Energy Agency Cooperative Reserach Porject working group on Isotopic Studies of El Nino in the Ocean (2005 - Present)
  • Invited Testimony, National Academy of Sciences Panel on future U.S. Polar Researh Vessel Needs (2005 - 2005)
  • Faculty Leader, Stanford Travel Study Trip to Russian Far East, Stanford University (2005 - 2005)
  • Invited Speaker, Stanford Club of Wyoming, Stanford Club of Monterey, Stanford Club of Philadelphia (2005 - 2005)
  • Invited Participant, East Antarctic Margin Drilling Workshop, Spoleto, Italy (2005 - 2005)
  • Participant, ANDRILL (Antarctic Drilling) McMurdo Sound Drilling Program (2005 - Present)
  • Chair, Antarctic Research Vessel Oversight Committee (2005 - 2008)
  • Co-Chair, Faculty search committee for a new hire in the area of Climate Science, Stanford University (2005 - 2009)
  • Off-ice designated scientist, ANDRILL McMurdo Ice Shelf Project (2006 - 2007)
  • Scientist, Marine Biology, Biogeochemistry, and Ocean Physics, Ross Sea, Antarctica, R/V Nathaniel Palmer (2006 - 2007)
  • Invited Lecturer, U.S. Geological Survey, Hopkins Marine Station, University of Queensland, Australian National University (2006 - 2006)
  • Invited Speaker, End of Oil Symposium, Stanford (2006 - 2006)
  • Speaker, Stanford Alumni Clubs in San Diego, Los Angeles (2006 - 2006)
  • Invited Speaker, Stanford Parents Day, Stanford University (2006 - 2007)
  • Plenary Speaker, SCAR Open Sciences Congress, Hobar (2006 - 2006)
  • Leader, Lake coring trip to Lago Fagnano, Tierra del Fuego, Argentina (2006 - 2006)
  • Leader, IAEA sampling mission to Raja Ampat archipelago, West Papua, Indonesia (2006 - 2006)
  • Scientist, Coral Reef Control Volume Experiment, Heron Island, Australia (2006 - 2006)
  • Seminar speaker, Heron Island Marine Station, Australia, and at the University of Queensland, Brisbane, Australia (2006 - 2006)
  • Invited Speaker, End of Oil Public Lecture Series, SES, Stanford University (2006 - 2006)
  • Faculty Leader, Stanford Travel Study Trip to New Guinea, Stanford University (2006 - 2006)
  • Invited Speaker, Stanford Club of San Diego (2006 - 2006)
  • Keynote Plenary Speaker, SCAR Open Sciences Conference, Hobart, Australia (2006 - 2006)
  • Member, Program Committee, 2006 SCAR (Scientific Committee for Antarctic Research) biannual Open Science Conference, Hobart Australia (2006 - 2006)
  • Member, American Geophysical Union Program Committee for 2006 Joint Meeting in Baltimore (2006 - 2006)
  • Member, Search Committee for a faculty hire in Physical Oceanography, Stanford University (2006 - 2007)
  • Invited Speaker, Stanford Admit Weekend, Stanford University (2007 - 2007)
  • Expert Panelist, Site visit for Foundation for Research, Science, and Technology review of Crown Research Institutes, New Zealand (2007 - 2007)
  • Co-Chief Scientist, Stanford@SEA, RV Robert Seamans (2007 - 2007)
  • Chief Scientist, Deep Sea Coral Collectiion by Submersibles, RV KOK, Pisces V 2007 | Leader, Coral Coring expedition to Palmyra (2007 - 2007)
  • Invited Speaker, Stanford Homecoming (2007 - 2007)
  • Stanford representative, Consortium for Ocean Leadership (2007 - Present)
  • Invited Lecturer, University of Toronto, The Nature Conservancy, Australian National University, Stanford University (2007 - 2007)
  • Participant, Southern McMurdo Sound ANDRILL Project (2007 - 2007)
  • Member, Program Committee, 2008 SCAR Open Sciences Congress, St. Petersburg (2007 - 2008)
  • Member, Woods Institute Research Committee (2007 - 2007)
  • Peer Review Team Member, Department of Oceanography, Texas A&M University (2008 - 2008)
  • Invited Speaker Stanford Admit Weekend, Stanford University (2008 - 2008)
  • Invited Speaker, Stanford Parents Day, Stanford University (2008 - 2008)
  • Invited Lecturer, Stanford University, for Stanford Development Office (events in NYC and LA), San Francisco State University, British Antarctic Survey, SCAR-OSC, St. Petersburg, Russia (2008 - 2008)
  • Chair, Palmyra Atoll Research Consortium Finance Commitee (2008 - Present)
  • Member, Faculty Search Committee in area of Chemical Oceanography, Stanford University (2008 - 2010)
  • Member, Center for Ocean Solutions Management Committee (2008 - Present)
  • Member, Y2E2 Building Management Committee, Stanford University (2008 - Present)
  • Member, External Revue Panel, College of Geoscience, Oceanography Department Texas A&M University (2008 - 2009)
  • Proponent and Shipboard Participant, Integrative Ocean Drilling Program Expedition 318 to Antarctica (2008 - Present)
  • Speaker, Oceans Forum, Copenhagen Conference on Climate Change (COP-15) (2009 - 2009)
  • Member, Visiting Review Committee, Oceanography Department, Texas A&M University, College Station, Texas (2009 - 2009)
  • Invited Participant, INVEST Workshop on the Future of Ocean Drilling (2009 - 2009)
  • Invited Lecturer, Stanford University, IAEA ENSO Workshop, Lima , Peru, ACE Science Conference, Granada, Spain, ANDRILL Workshop, Wellington, New Zealand, SF Exploratorium, Stanford Club of Monterey (2009 - 2009)
  • Member, Visiting Review Committee, Department of Marine Sciences, University of Otago, Dunedin, New Zealand (2009 - 2009)
  • Trustee, Trustee, Consortium for Ocean Leadership (2009 - Present)
  • Member, Committee of Visitors evaluating Office of Polar Programs at the US National Science Foundation (2009 - 2010)
  • Participant, McMurdo Ice Shelf Drilling Project Workshop, Wellington, New Zealand (2009 - 2009)
  • Member, Program Committee, Antarctic Climate Evolution Conference, Granada, Spain (2009 - 2009)
  • Member, External Revue Panel, Department of Marine Sciences, University of Otago, Dunedin, New Zealand (2009 - 2010)
  • Member, Audit Committee, Consortium for Ocean Leadership (2009 - Present)
  • Member, Committee of Visitors, Public evaluation of effectiveness of Office of Polar Research, US National Science Foundation (2009 - 2010)
  • Member, Faculty Search Committee for Director of Center for Ocean Solutions, Stanford University (2009 - 2010)
  • Invited Speaker, Victoria University of Wellington, New Zealand, Los Altos Earth Day Event, Bohemian Grove, Steve Schneider Symposium (Monterey), Cal Academy of Arts and Sciences, Ocean Leadership (DC) (2010 - 2010)
  • Member, Visiting Review Committee, Ocean Sciences Program, Texas A&M University, Corpus Christi (2010 - 2010)
  • Invited Speaker, TED Mission Blue (2010 - 2010)
  • Member, Sample Allocation Committee, IODP Expedition 318 (2010 - Present)
  • Member, New Ship Acquisition and Funding Committee, Consortium for Ocean Leadership (2010 - Present)
  • Chair, Scientific Ocean Drilling Subcommittee, Consortium for Ocean Leadership (2010 - Present)
  • Invited Participant, US-Italian Workshop on Time Series Observation in the Ross Sea, Ischia Italy (2010 - Present)
  • Member, Working Group on Sea Level Rise and the Pacific Small Island and Developing States, Earth Justice and U.N. Foundation (2010 - Present)
  • Mentor of Middle School Science Teacher through NASA Mentoring Program, Stanford University (2010 - 2011)
  • Chair, NSF-UNOLS Polar Research Vessel Committee (2010 - Present)
  • Member, Freshman and Sophomore Programs Advisory Committee, Stanford University (2010 - Present)
  • Presenter, Woods Institute, Oceans Salon, California Academy of Sciences (2010 - Present)
  • Member, Vice-Provost’s “critical engagement” focus group, Stanford University (2010 - Present)
  • Member, Advisory Board, Haas Center for Public Service, Stanford University (2010 - Present)
  • U.S. Member, Science Planning Committee (SPC), Intergated Ocean Drilling Program (2011 - 2011)
  • Vice-Chair, Board of Trustees, Consortium for Ocean Leadership (2011 - Present)
  • Invited Speaker, Northern Illinois University, Livermore Valley Association, Kennedy Middle School (2011 - 2011)
  • Session Chair and Keynote Speaker, International Symposium on Antarctic Earth Sciences, Edinburgh (2011 - 2011)
  • Mentor, Jefferson High School Science Teacher, NASA Mentoring Program, Stanford University (2011 - Present)
  • Chair, Public Policy Committee, Consortium for Ocean Leadership (2011 - Present)
  • Coordinator, EESS weekly seminar series for Spring, 2012, Stanford University (2011 - 2012)
  • Member, Committee on Undergraduate Standards and Policy (C-USP), Stanford University (2011 - 2013)
  • Member, HOLOCLIP project team, European Union (2011 - Present)
  • Member, Coral Reefs and Climate Change Working Group, Center for Ocean Solutions (2011 - Present)
  • Re-elected to Board of Trustees, Consortium for Ocean Leadership (2012 - Present)
  • Member, Faculty Search Committee for an appointment to “The Douglas Chair”, Stanford University (2011 - Present)
  • U.S. Member, Science Implementation and Planning Committee, (SIPCOM),Intergated Ocean Drilling Program (2012 - Present)
  • Invited participant, US-Korean-Italian Workshop on Time Series Observation in the Ross Sea, Incheon, Korea (2012 - 2012)
  • Keynote speaker, UC Davis Graduate Ecology Symposium (2012 - 2012)
  • Keynote speaker, Ecopoesis Conference, California College of the Arts (2012 - 2012)
  • Invited speaker, SETI Institute (2012 - 2012)
  • Member, Past Antarctic Ice Sheet Dynamics (PAIS) development team, Scientific Committee on Antarctic Research (2012 - 2012)
  • Co-Leader, GSA/UT Austin Geologic Field Trip to Antarctica (2012 - 2013)
  • Invited Plenary Speaker, 5th Scientific Committee on Antarctic Research Open Sciences Conference (2012 - 2012)
  • Invited Speaker, NASA/GISS (2013 - 2013)

Professional Education


  • Ph.D., University of California, San Diego, Oceanography (1981)
  • B.S., University of Texas, Austin, Geology (1975)

Research & Scholarship

Current Research and Scholarly Interests


Research
I am interested in global climate change, and in particular how to separate man-induced climate change from the large and dynamic variability that is simply part of how our planet works. Every year I take Stanford graduate and undergraduate students into the field to collect samples from natural archives of climate change--things like marine and lacustrine sediments, and cores from ancient coral heads. We focus on using isotopic and biogeochemical methods for measuring ocean temperatures at the poles, tropics, and within the deep ocean interior. My group also studies modern processes in the ocean; for example, how much carbon dioxide the ocean takes out of the atmosphere and what effects oceanic uptake has on biological processes in the sea. As director of the Earth Systems Program and a member of the management committee for Stanford's Center for Ocean Solutions, I am interested in how we translate scientific knowledge into better policies and practices to promote the sustainable use of the Earth.

Teaching
I teach both undergraduate and graduate courses in climate and global change, geochemistry, oceanography, marine geology, and paleoclimatology. I am particularly intrigued with teaching in the field and have taken over 250 Stanford students to remote locations such as Antarctica and the Line Islands to participate in educational and research expeditions.

Professional Activities
Chair, NSF-UNOLS Polar Research Vessel Committee, 2010-present; Re-elected to Board of Trustees, Consortium for Ocean Leadership, 2012-2015; Vice-Chair, Board of Trustees, Consortium for Ocean Leadership, 2011-present; Member, Working Group on Sea Level Rise and the Pacific Small Island and Developing States, Earth Justice and U.N. Foundation, 2010-present; Mentor, Jefferson High School Science Teacher, NASA Mentoring Program, 2011-present; Chair, Public Policy Committee, Consortium for Ocean Leadership, 2011-present; Keynote speaker, Ecopoesis Conference, California College of the Arts, 2012; U.S. Member, Science Implementation and Planning Committee (SipCOM), IODP, 2011-present; Member, HOLOCLIP project team, European Union, 2011-present; Member, Coral Reefs and Climate Change Working Group, Center for Ocean Solutions, 2011-present; Keynote speaker, UC Davis Graduate Ecology Symposium, 2012; Member, New Ship Acquisition and Funding Models Committee, Consortium for Ocean Leadership, 2010-present; Chair, Ocean Drilling SubCommittee, Consortium for Ocean Leadership, 2010-present; Invited Speaker, TED Mission Blue to Galapagos, 2010; Member, Visiting Review Committee, Ocean Sciences Program, Texas A&M University, Corpus Christi; Proponent & Shipboard Group Leader, Integrated Ocean Drilling Program Expedition 318 to Antarctica, 2008-present; Member, Audit Committee, Consortium for Ocean Leadership, 2009-present; ACE Project co-Chair, Scientific Committee on Antarctic Research (SCAR), 2005-08; Chair, Antarctic Research Vessel Oversight Committee (NSF), 2005-08; J. Frederick and Elisabeth B. Weintz University Fellow in Undergraduate Education, 2004-14; Chair, Palmyra Atoll Research Consortium Finance Committee, 2007-present; Chair, Cooperative Research Project on El Nino Variability, International Atomic Energy Agency, 2004-10; Governor, Joint Oceanographic Institutions, 2003-07; Stanford Representative to the Consortium for Ocean Leadership, 2008-12, U.S. Steering Committee for Antarctic Drilling, 2004-present; Victoria P. and Richard W. Sant Director, Earth Systems Program, 2003-12; Director, Interdisciplinary Graduate Program in Environment and Resources, Stanford University, 2001-05; director, Stanford University Stable Isotope Laboratory, 1997-present

Teaching

2013-14 Courses


Publications

Journal Articles


  • (submitted) Nature's last stand: Locating and protecting the planet's most remote and biodiverse sites Nature McCauley, D. J., , D. J., McInturf, A., , A., Young, H. S., , H. S., Dunbar, R. B., , R. B., Hastie, T., , T., Mazumder, R., , R., Viladomat, J., , J., Dirzo, R., , R., Micheli, F., F. 2014
  • (submitted) Underwater elephants: functionally important species and the importance of ecosystem functioning American Naturalist McCauley, D. J., Young, H. S., Guevara, R., Power , E., Dunbar, R. B., Bird, D., Durham , W., Williams, G. J., Micheli, F. 2014
  • (submitted) Retreat history of the East Antarctic Ice Sheet since the Last Glacial Maximum Quaternary Science Reviews Mackintosh, A. N., Verleyen, E., O’Brien, P. E., White, D., McKay, R., Gore, D. B., Dunbar, R. B., Fink, D., Jones, R. S., Post, A. L., Miura, H., Leventer, A., Goodwin, I., Lilly, K., Crosta, X., Golledge, N., Wagner, B., Berg, S., van Ommen, T., Zwartz, D., Hodgson, D. A., Roberts, S. J., Vyverman, W., Masse, G. 2014
  • (submitted) δ18O and δ13C disequilibrium in deep-sea gorgonian corals (Isididae and Coralliidae): Implications for paleotemperature reconstruction Palaios Kimball, J. B., Dunbar, R. B. 2014
  • (submitted) Lateral advection of settling particles in the eastern Bransfield Strait (Antarctica) documented using the stable nitrogen isotopic ratio of biogenic particles Polar Research Khim, B. K., Dunbar, R. B., Dongseon, K., Shin, H. C. 2014
  • (submitted) Background levels, fluxes and trends of persistent organic pollutants (PAHs, PCBs and PBDEs) in soils and sediments from remote lacustrine environments (Southern Jalisco Highlands, Central Mexico) Environment International Ruiz-Fernández, A. C., Ontiveros-Cuadras, J. F., Luis Sericano, J., Sánchez-Cabeza, J. A., Wee-Kwon, L. L., Dunbar, R. B., Mucciarone, D., Pérez-Bernal, H. L., Páez-Osuna, F. 2014
  • Regional calibration of coral-based climate reconstructions from Palau, West Pacific Warm Pool (WPWP) PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY Osborne, M. C., Dunbar, R. B., Mucciarone, D. A., Sanchez-Cabeza, J., Druffel, E. 2013; 386: 308-320
  • Spatial and temporal variations in variable fluoresence in the Ross Sea (Antarctica): Oceanographic correlates and bloom dynamics DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS Smith, W. O., Tozzi, S., Long, M. C., Sedwick, P. N., Peloquin, J. A., Dunbar, R. B., Hutchins, D. A., Kolber, Z., DiTullio, G. R. 2013; 79: 141-155
  • High-resolution carbon budgets on a Palau back-reef modulated by interactions between hydrodynamics and reef metabolism LIMNOLOGY AND OCEANOGRAPHY Teneva, L., Dunbar, R. B., Mucciarone, D. A., Dunckley, J. F., Koseff, J. R. 2013; 58 (5): 1851-1870
  • delta N-15 values of settling biogenic particles in the eastern Bransfield Basin (west Antarctic) and their records for the surface-water condition GEOSCIENCES JOURNAL Khim, B., Dunbar, R., Kim, D. 2013; 17 (3): 255-265
  • Conservation at the edges of the world BIOLOGICAL CONSERVATION McCauley, D. J., Power, E. A., Bird, D. W., McInturff, A., Dunbar, R. B., Durham, W. H., Micheli, F., Young, H. S. 2013; 165: 139-145
  • Bacterial abundance and composition in marine sediments beneath the Ross Ice Shelf, Antarctica GEOBIOLOGY Carr, S. A., Vogel, S. W., Dunbar, R. B., Brandes, J., Spear, J. R., Levy, R., Naish, T. R., Powell, R. D., Wakeham, S. G., Mandernack, K. W. 2013; 11 (4): 377-395

    Abstract

    Marine sediments of the Ross Sea, Antarctica, harbor microbial communities that play a significant role in the decomposition, mineralization, and recycling of organic carbon (OC). In this study, the cell densities within a 153-cm sediment core from the Ross Sea were estimated based on microbial phospholipid fatty acid (PLFA) concentrations and acridine orange direct cell counts. The resulting densities were as high as 1.7 × 10⁷ cells mL⁻¹ in the top ten centimeters of sediments. These densities are lower than those calculated for most near-shore sites but consistent with deep-sea locations with comparable sedimentation rates. The δ¹³C measurements of PLFAs and sedimentary and dissolved carbon sources, in combination with ribosomal RNA (SSU rRNA) gene pyrosequencing, were used to infer microbial metabolic pathways. The δ¹³C values of dissolved inorganic carbon (DIC) in porewaters ranged downcore from -2.5‰ to -3.7‰, while δ¹³C values for the corresponding sedimentary particulate OC (POC) varied from -26.2‰ to -23.1‰. The δ¹³C values of PLFAs ranged between -29‰ and -35‰ throughout the sediment core, consistent with a microbial community dominated by heterotrophs. The SSU rRNA gene pyrosequencing revealed that members of this microbial community were dominated by β-, δ-, and γ-Proteobacteria, Actinobacteria, Chloroflexi and Bacteroidetes. Among the sequenced organisms, many appear to be related to known heterotrophs that utilize OC sources such as amino acids, oligosaccharides, and lactose, consistent with our interpretation from δ¹³CPLFA analysis. Integrating phospholipids analyses with porewater chemistry, δ¹³CDIC and δ¹³CPOC values and SSU rRNA gene sequences provides a more comprehensive understanding of microbial communities and carbon cycling in marine sediments, including those of this unique ice shelf environment.

    View details for DOI 10.1111/gbi.12042

    View details for Web of Science ID 000320552800006

    View details for PubMedID 23682649

  • Reorganization of Southern Ocean plankton ecosystem at the onset of Antarctic glaciation. Science Houben, A. J., Bijl, P. K., Pross, J., Bohaty, S. M., Passchier, S., Stickley, C. E., Röhl, U., Sugisaki, S., Tauxe, L., van de Flierdt, T., Olney, M., Sangiorgi, F., Sluijs, A., Escutia, C., Brinkhuis, H., Dotti, C. E., Klaus, A., Fehr, A., Williams, T., Bendle, J. A., Carr, S. A., Dunbar, R. B., Flores, J., Gonzàlez, J. J., Hayden, T. G., Iwai, M., Jimenez-Espejo, F. J., Katsuki, K., Kong, G. S., McKay, R. M., Nakai, M., Pekar, S. F., Riesselman, C., Sakai, T., Salzmann, U., Shrivastava, P. K., Tuo, S., Welsh, K., Yamane, M. 2013; 340 (6130): 341-344

    Abstract

    The circum-Antarctic Southern Ocean is an important region for global marine food webs and carbon cycling because of sea-ice formation and its unique plankton ecosystem. However, the mechanisms underlying the installation of this distinct ecosystem and the geological timing of its development remain unknown. Here, we show, on the basis of fossil marine dinoflagellate cyst records, that a major restructuring of the Southern Ocean plankton ecosystem occurred abruptly and concomitant with the first major Antarctic glaciation in the earliest Oligocene (~33.6 million years ago). This turnover marks a regime shift in zooplankton-phytoplankton interactions and community structure, which indicates the appearance of eutrophic and seasonally productive environments on the Antarctic margin. We conclude that earliest Oligocene cooling, ice-sheet expansion, and subsequent sea-ice formation were important drivers of biotic evolution in the Southern Ocean.

    View details for DOI 10.1126/science.1223646

    View details for PubMedID 23599491

  • The roles of productivity and ecosystem size in determining food chain length in tropical terrestrial ecosystems ECOLOGY Young, H. S., McCauley, D. J., Dunbar, R. B., Hutson, M. S., Ter-Kuile, M., Dirzo, R. 2013; 94 (3): 692-701

    Abstract

    Many different drivers, including productivity, ecosystem size, and disturbance, have been considered to explain natural variation in the length of food chains. Much remains unknown about the role of these various drivers in determining food chain length, and particularly about the mechanisms by which they may operate in terrestrial ecosystems, which have quite different ecological constraints than aquatic environments, where most food chain length studies have been thus far conducted. In this study, we tested the relative importance of ecosystem size and productivity in influencing food chain length in a terrestrial setting. We determined that (1) there is no effect of ecosystem size or productive space on food chain length; (2) rather, food chain length increases strongly and linearly with productivity; and (3) the observed changes in food chain length are likely achieved through a combination of changes in predator size, predator behavior, and consumer diversity along gradients in productivity. These results lend new insight into the mechanisms by which productivity can drive changes in food chain length, point to potential for systematic differences in the drivers of food web structure between terrestrial and aquatic systems, and challenge us to consider how ecological context may control the drivers that shape food chain length.

    View details for Web of Science ID 000317044300016

    View details for PubMedID 23687895

  • (in press) Early Bomb Radiocarbon Detected in Palau Archipelago Corals Radiocarbon Glynn, D., Druffel, E., Griffin, S., Dunbar, R., Osborne, M., Sanchez-Cabeza, J. A. 2013
  • Diatom evidence for the onset of Pliocene cooling from AND-1B, McMurdo Sound, Antarctica PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY Riesselman, C. R., Dunbar, R. B. 2013; 369: 136-153
  • EARLY BOMB RADIOCARBON DETECTED IN PALAU ARCHIPELAGO CORALS RADIOCARBON Glynn, D., Druffel, E., Griffin, S., Dunbar, R., Osborne, M., Sanchez-Cabeza, J. A. 2013; 55 (2-3): 1659-1664
  • Late Holocene variations in Pacific surface circulation and biogeochemistry inferred from proteinaceous deep-sea corals BIOGEOSCIENCES Guilderson, T. P., McCarthy, M. D., Dunbar, R. B., Englebrecht, A., Roark, E. B. 2013; 10 (9): 6019-6028
  • Reorganization of Southern Ocean Plankton Ecosystem at the Onset of Antarctic Glaciation Science Houben, A.J.P., Bijl, P.K., Pross, J., Bohaty, S.M., Passchier, S., Stickley, C.E., Röhl, U., Sugisaki, S., Tauxe, L., van de Flierdt, T., Olney, M., Sangiorgi, F., Sluijs, A., Escutia, C.and Brinkhuis, H., Scientists, 3. 2013; 340: 341-344

    View details for DOI 10.1126/science.1223646

  • Relative sea-level rise around East Antarctica during Oligocene glaciation Nature Geoscience Stocchi, P., Escutia, C., Houben, A.J.P., Vermeersen, B.L.A., Bijl, P.K., Brinkhuis, H., DeConto, R.M., Galeotti, S., Passchier, S., Pollard, D., Klaus, A., Fehr, A., Williams, T., Bendle, J.A.P., Bohaty, S.M., Carr, S.A., Dunbar, R.B., Flores, J.A., et al. 2013; 6: 380-384

    View details for DOI 10.1038/ngeo1783

  • High-resolution carbon budgets on a Palau back-reef modulated by interactions between hydrodynamics and reef metabolism: insights for ocean acidification impacts Limnology and Oceanography Teneva, L., Dunckley, J. F., Dunbar, R. B., Mucciarone, D. A., Koseff, J. R. 2013; 58 (5): 1851-1870
  • Neogene tectonic and climatic evolution of the Western Ross Sea, Antarctica - Chronology of events from the AND-1B drill hole GLOBAL AND PLANETARY CHANGE Wilson, G. S., Levy, R. H., Naish, T. R., Powell, R. D., Florindo, F., Ohneiser, C., Sagnotti, L., Winter, D. M., Cody, R., Henrys, S., Ross, J., Krissek, L., Niessen, F., Pompillio, M., Scherer, R., Alloway, B. V., Barrett, P. J., Brachfeld, S., Browne, G., Carter, L., Cowan, E., Crampton, J., DeConto, R. M., Dunbar, G., Dunbar, N., Dunbar, R., von Eynatten, H., Gebhardt, C., Giorgetti, G., Graham, I., Hannah, M., Hansaraj, D., Harwood, D. M., Hinnov, L., Jarrard, R. D., Joseph, L., Kominz, M., Kuhn, G., Kyle, P., Laeufer, A., McIntosh, W. C., McKay, R., Maffioli, P., Magens, D., Millan, C., Monien, D., Morin, R., Paulsen, T., Persico, D., Pollard, D., Raine, J. I., Riesselman, C., Sandroni, S., Schmitt, D., Sjunneskog, C., Strong, C. P., Talarico, F., Taviani, M., Villa, G., Vogel, S., Wilch, T., Williams, T., Wilson, T. J., Wise, S. 2012; 96-97: 189-203
  • Assessing the effects of large mobile predators on ecosystem connectivity ECOLOGICAL APPLICATIONS McCauley, D. J., Young, H. S., Dunbar, R. B., Estes, J. A., Semmens, B. X., Michel, F. 2012; 22 (6): 1711-1717

    Abstract

    Large predators are often highly mobile and can traverse and use multiple habitats. We know surprisingly little about how predator mobility determines important processes of ecosystem connectivity. Here we used a variety of data sources drawn from Palmyra Atoll, a remote tropical marine ecosystem where large predators remain in high abundance, to investigate how these animals foster connectivity. Our results indicate that three of Palmyra's most abundant large predators (e.g., two reef sharks and one snapper) use resources from different habitats creating important linkages across ecosystems. Observations of cross-system foraging such as this have important implications for the understanding of ecosystem functioning, the management of large-predator populations, and the design of conservation measures intended to protect whole ecosystems. In the face of widespread declines of large, mobile predators, it is important that resource managers, policy makers, and ecologists work to understand how these predators create connectivity and to determine the impact that their depletions may be having on the integrity of these linkages.

    View details for Web of Science ID 000309437100001

  • A NEW US POLAR RESEARCH VESSEL FOR THE TWENTY-FIRST CENTURY OCEANOGRAPHY Dunbar, R. B., Alberts, J., Ashjian, C., Asper, V., Chayes, D., Domack, E., Ducklow, H., Huber, B., Lawver, L., Oliver, D., Russell, D., Smith, C. R., Vernet, M. 2012; 25 (3): 204-207
  • Seasonally laminated diatom-rich sediments from Dumont d'Urville Trough, East Antarctic Margin: Late-Holocene Neoglacial sea-ice conditions HOLOCENE Maddison, E. J., Pike, J., Dunbar, R. 2012; 22 (8): 857-875
  • Chronostratigraphic framework for the IODP Expedition 318 cores from the Wilkes Land Margin: Constraints for paleoceanographic reconstruction PALEOCEANOGRAPHY Tauxe, L., Stickley, C. E., SUGISAKI, S., Bijl, P. K., Bohaty, S. M., Brinkhuis, H., Escutia, C., Flores, J. A., Houben, A. J., Iwai, M., Jimenez-Espejo, F., McKay, R., Passchier, S., Pross, J., Riesselman, C. R., ROEHL, U., Sangiorgi, F., Welsh, K., Klaus, A., Fehr, A., Bendle, J. A., Dunbar, R., Gonzalez, J., Hayden, T., Katsuki, K., Olney, M. P., Pekar, S. F., Shrivastava, P. K., van de Flierdt, T., Williams, T., Yamane, M. 2012; 27
  • Resilience of cold-water scleractinian corals to ocean acidification: Boron isotopic systematics of pH and saturation state up-regulation GEOCHIMICA ET COSMOCHIMICA ACTA McCulloch, M., Trotter, J., Montagna, P., Falter, J., Dunbar, R., Freiwald, A., Foersterra, N., Lopez Correa, M., Maier, C., Ruggeberg, A., Taviani, M. 2012; 87: 21-34
  • A short-term in situ CO2 enrichment experiment on Heron Island (GBR) SCIENTIFIC REPORTS Kline, D. I., Teneva, L., Schneider, K., Miard, T., Chai, A., Marker, M., Headley, K., Opdyke, B., Nash, M., Valetich, M., Caves, J. K., Russell, B. D., Connell, S. D., Kirkwood, B. J., Brewer, P., Peltzer, E., Silverman, J., Caldeira, K., Dunbar, R. B., Koseff, J. R., Monismith, S. G., Mitchell, B. G., Dove, S., Hoegh-Guldberg, O. 2012; 2

    Abstract

    Ocean acidification poses multiple challenges for coral reefs on molecular to ecological scales, yet previous experimental studies of the impact of projected CO? concentrations have mostly been done in aquarium systems with corals removed from their natural ecosystem and placed under artificial light and seawater conditions. The Coral-Proto Free Ocean Carbon Enrichment System (CP-FOCE) uses a network of sensors to monitor conditions within each flume and maintain experimental pH as an offset from environmental pH using feedback control on the injection of low pH seawater. Carbonate chemistry conditions maintained in the -0.06 and -0.22 pH offset treatments were significantly different than environmental conditions. The results from this short-term experiment suggest that the CP-FOCE is an important new experimental system to study in situ impacts of ocean acidification on coral reef ecosystems.

    View details for DOI 10.1038/srep00413

    View details for Web of Science ID 000304394000002

    View details for PubMedID 22639723

  • From wing to wing: the persistence of long ecological interaction chains in less-disturbed ecosystems SCIENTIFIC REPORTS McCauley, D. J., DeSalles, P. A., Young, H. S., Dunbar, R. B., Dirzo, R., Mills, M. M., Micheli, F. 2012; 2

    Abstract

    Human impact on biodiversity usually is measured by reduction in species abundance or richness. Just as important, but much more difficult to discern, is the anthropogenic elimination of ecological interactions. Here we report on the persistence of a long ecological interaction chain linking diverse food webs and habitats in the near-pristine portions of a remote Pacific atoll. Using biogeochemical assays, animal tracking, and field surveys we show that seabirds roosting on native trees fertilize soils, increasing coastal nutrients and the abundance of plankton, thus attracting manta rays to native forest coastlines. Partnered observations conducted in regions of this atoll where native trees have been replaced by human propagated palms reveal that this complex interaction chain linking trees to mantas readily breaks down. Taken together these findings provide a compelling example of how anthropogenic disturbance may be contributing to widespread reductions in ecological interaction chain length, thereby isolating and simplifying ecosystems.

    View details for DOI 10.1038/srep00409

    View details for Web of Science ID 000304393800001

    View details for PubMedID 22624091

  • Antarctic and Southern Ocean influences on Late Pliocene global cooling PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA McKay, R., Naish, T., Carter, L., Riesselman, C., Dunbar, R., Sjunneskog, C., Winter, D., Sangiorgi, F., Warren, C., Pagani, M., Schouten, S., Willmott, V., Levy, R., DeConto, R., Powell, R. D. 2012; 109 (17): 6423-6428

    Abstract

    The influence of Antarctica and the Southern Ocean on Late Pliocene global climate reconstructions has remained ambiguous due to a lack of well-dated Antarctic-proximal, paleoenvironmental records. Here we present ice sheet, sea-surface temperature, and sea ice reconstructions from the ANDRILL AND-1B sediment core recovered from beneath the Ross Ice Shelf. We provide evidence for a major expansion of an ice sheet in the Ross Sea that began at ?3.3 Ma, followed by a coastal sea surface temperature cooling of ?2.5 °C, a stepwise expansion of sea ice, and polynya-style deep mixing in the Ross Sea between 3.3 and 2.5 Ma. The intensification of Antarctic cooling resulted in strengthened westerly winds and invigorated ocean circulation. The associated northward migration of Southern Ocean fronts has been linked with reduced Atlantic Meridional Overturning Circulation by restricting surface water connectivity between the ocean basins, with implications for heat transport to the high latitudes of the North Atlantic. While our results do not exclude low-latitude mechanisms as drivers for Pliocene cooling, they indicate an additional role played by southern high-latitude cooling during development of the bipolar world.

    View details for DOI 10.1073/pnas.1112248109

    View details for Web of Science ID 000303249100024

    View details for PubMedID 22496594

  • Radiocarbon and stable isotopes in Palmyra corals during the past century GEOCHIMICA ET COSMOCHIMICA ACTA Druffel-Rodriguez, K. C., Vetter, D., Griffin, S., Druffel, E. R., Dunbar, R. B., Mucciarone, D. A., Ziolkowski, L. A., Sanchez-Cabeza, J. 2012; 82: 154-162
  • Control of phytoplankton bloom inception in the Ross Sea, Antarctica, by Ekman restratification GLOBAL BIOGEOCHEMICAL CYCLES Long, M. C., Thomas, L. N., Dunbar, R. B. 2012; 26
  • Integrated biomagnetostratigraphy of the Wilkes Land Margin for reconstruction of 53 Ma of Antarctic Margin paleoceanography: New results from IODP Expedition 318 Paleoceanography Tauxe, L., Stickley, C., Sugisaki, S., Bijl, P., Bohaty, S., Brinkhuis, H., Escutia, C., Flores, J., Iwai, M., Jiménez-Espejo, F. J., McKay, R., Passchier, S., Pross, J., Riesselman, C., Roehl, U., Sangiorini, F., Welsh, K., Williams, T., Klaus, A., Fehr, A., Bendle, J., Dunbar, R., Gonzalez, J., Hayden, T., Olney, M., Pekar, S., Shrivastava, P., van de Flierdt, T., Yamane, M. 2012; 27

    View details for DOI 10.1029/2012PA002308

  • Seasonally-laminated diatom-rich sediments from Dumont d'Urville Trough, East Antarctic Margin: Late Holocene Neoglacial sea-ice conditions The Holocene Maddison, E. J., Pike, J., Leventer, A., Dunbar, R. 2012; 22: 1-19

    View details for DOI 10.1177/0959683611434223

  • Persistent near-tropical warmth on the Antarctic continent during the early Eocene epoch Nature Pross, J., Contreras, L., Bijl, P.K., Greenwood, D.R., Bohaty, S.M., Schouten, S., Bendle, J.A., Röhl, U., Tauxe, Dunbar, R., et. al. 2012; 488: 73-77
  • Early season depletion of dissolved iron in the Ross Sea polynya: Implications for iron dynamics on the Antarctic continental shelf JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Sedwick, P. N., Marsay, C. M., Sohst, B. M., Aguilar-Islas, A. M., Lohan, M. C., Long, M. C., Arrigo, K. R., Dunbar, R. B., Saito, M. A., Smith, W. O., DiTullio, G. R. 2011; 116
  • Effects of diagenesis on paleoclimate reconstructions from modern and young fossil corals GEOCHIMICA ET COSMOCHIMICA ACTA Sayani, H. R., Cobb, K. M., Cohen, A. L., Elliott, W. C., Nurhati, I. S., Dunbar, R. B., Rose, K. A., Zaunbrecher, L. K. 2011; 75 (21): 6361-6373
  • Vertical structure, seasonal drawdown, and net community production in the Ross Sea, Antarctica JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Long, M. C., Dunbar, R. B., Tortell, P. D., Smith, W. O., Mucciarone, D. A., DiTullio, G. R. 2011; 116
  • Holocene mass-wasting events in Lago Fagnano, Tierra del Fuego (54 degrees S): implications for paleoseismicity of the Magallanes-Fagnano transform fault BASIN RESEARCH Waldmann, N., Anselmetti, F. S., Ariztegui, D., Austin, J. A., Pirouz, M., Moy, C. M., Dunbar, R. 2011; 23 (2): 171-190
  • Retreat of the East Antarctic ice sheet during the last glacial termination NATURE GEOSCIENCE Mackintosh, A., Golledge, N., Domack, E., Dunbar, R., Leventer, A., White, D., Pollard, D., DeConto, R., Fink, D., Zwartz, D., Gore, D., Lavoie, C. 2011; 4 (3): 195-202

    View details for DOI 10.1038/NGEO1061

    View details for Web of Science ID 000287802300021

  • A geochemical and sedimentary record of high southern latitude Holocene climate evolution from Lago Fagnano, Tierra del Fuego EARTH AND PLANETARY SCIENCE LETTERS Moy, C. M., Dunbar, R. B., Guilderson, T. P., Waldmann, N., Mucciarone, D. A., Recasens, C., Ariztegui, D., Austin, J. A., Anselmetti, F. S. 2011; 302 (1-2): 1-13
  • The atmospheric lead record preserved in lagoon sediments at a remote equatorial Pacific location: Palmyra Atoll, northern Line Islands MARINE POLLUTION BULLETIN Collen, J. D., Baker, J. A., Dunbar, R. B., Rieser, U., Gardner, J. P., Garton, D. W., Christiansen, K. J. 2011; 62 (2): 251-257

    Abstract

    Anthropogenic lead (Pb) inputs to the atmosphere increased greatly over the past century and now dominate Pb supply to the oceans. However, the Pb content of sediments across the equatorial Pacific region is relatively unknown, and data exist only for deep sea sites where Pb deposition lags surface water inputs by up to a century. Here we present ICP-MS analyses of Pb of a core from a lagoon at Palmyra Atoll, northern Line Islands, that spans approximately the past 160 years. The non-bioturbated sediments of the euxinic lagoon, coupled with rapid rates of deposition, provide a unique fine-scale record of atmospheric Pb supply at a remote Pacific location. These first observations of historic Pb sedimentation in an atoll lagoon reveal a 63-fold increase in Pb flux to sediments during the past century and correlate directly with the North American consumption of leaded gasoline that began in 1926.

    View details for DOI 10.1016/j.marpolbul.2010.11.004

    View details for Web of Science ID 000288296400017

    View details for PubMedID 21094962

  • Iron limitation of springtime bacterial and phytoplankton community in the Ross Sea: Implications for vitamin B12 nutrition Frontiers in Microbiology Bertrand, E. M., Saito, M. A., Lee, P. A., Dunbar, R. B., DiTullio, G. R. 2011; 2

    View details for DOI 10.3389/fmicb.2011.00160

  • Iron limitation of a springtime bacterial and phytoplankton community in the ross sea: implications for vitamin b(12) nutrition. Frontiers in microbiology Bertrand, E. M., Saito, M. A., Lee, P. A., Dunbar, R. B., Sedwick, P. N., DiTullio, G. R. 2011; 2: 160-?

    Abstract

    The Ross Sea is home to some of the largest phytoplankton blooms in the Southern Ocean. Primary production in this system has previously been shown to be iron limited in the summer and periodically iron and vitamin B(12) colimited. In this study, we examined trace metal limitation of biological activity in the Ross Sea in the austral spring and considered possible implications for vitamin B(12) nutrition. Bottle incubation experiments demonstrated that iron limited phytoplankton growth in the austral spring while B(12), cobalt, and zinc did not. This is the first demonstration of iron limitation in a Phaeocystis antarctica-dominated, early season Ross Sea phytoplankton community. The lack of B(12) limitation in this location is consistent with previous Ross Sea studies in the austral summer, wherein vitamin additions did not stimulate P. antarctica growth and B(12) was limiting only when bacterial abundance was low. Bottle incubation experiments and a bacterial regrowth experiment also revealed that iron addition directly enhanced bacterial growth. B(12) uptake measurements in natural water samples and in an iron fertilized bottle incubation demonstrated that bacteria serve not only as a source for vitamin B(12), but also as a significant sink, and that iron additions enhanced B(12) uptake rates in phytoplankton but not bacteria. Additionally, vitamin uptake rates did not become saturated upon the addition of up to 95 pM B(12). A rapid B(12) uptake rate was observed after 13 min, which then decreased to a slower constant uptake rate over the next 52 h. Results from this study highlight the importance of iron availability in limiting early season Ross Sea phytoplankton growth and suggest that rates of vitamin B(12) production and consumption may be impacted by iron availability.

    View details for DOI 10.3389/fmicb.2011.00160

    View details for PubMedID 21886638

  • Holocene climate variability at high-southern latitudes: an integrated perspective (HOLOCLIP) (not peer-reviewed) PAGES newsletter Stenni, B., Crosta, X., Oerter, H., Dotti, E. C., Renssen, H., Goosse, H., Pike, H., Dunbar, R. B. 2011; 19 (1): 37
  • Early-season iron depletion in the Ross Sea polynya: Implications for iron dynamics on the Antarctic continental shelf Journal of Geophysical Research Sedwick, P. N., Marsay, C. M., Aguilar-Islas, A. M., Lohan, M. C., Sohst, B., Long, M. C., Arrigo, K. R., Bruland, K. W., DiTullio, G. R., Dunbar, R. B., Saito, M. A., Smith, W. O. 2011; 116

    View details for DOI 10.1029/2010JC006553

  • Holocene climatic fluctuations and positioning of the Southern Hemisphere westerlies in Tierra del Fuego (54 degrees S), Patagonia JOURNAL OF QUATERNARY SCIENCE Waldmann, N., Ariztegui, D., Anselmetti, F. S., Austin, J. A., Moy, C. M., Stern, C., Recasens, C., Dunbar, R. B. 2010; 25 (7): 1063-1075

    View details for DOI 10.1002/jqs.1263

    View details for Web of Science ID 000283697100003

  • Stable isotope composition of dissolved inorganic carbon and particulate organic carbon in sea ice from the Ross Sea, Antarctica JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Munro, D. R., Dunbar, R. B., Mucciarone, D. A., Arrigo, K. R., Long, M. C. 2010; 115
  • Poleward decrease in the isotope effect of nitrate assimilation across the Southern Ocean GEOPHYSICAL RESEARCH LETTERS DiFiore, P. J., Sigman, D. M., Karsh, K. L., Trull, T. W., Dunbar, R. B., Robinson, R. S. 2010; 37
  • Uranium-series dating and growth characteristics of the deep-sea scleractinian coral: Enallopsammia rostrata from the Equatorial Pacific GEOCHIMICA ET COSMOCHIMICA ACTA Houlbreque, F., McCulloch, M., Roark, B., Guilderson, T., Meibom, A., Kimball, J., Mortimer, G., Cuif, J., Dunbar, R. 2010; 74 (8): 2380-2395
  • Interactive effects of iron, irradiance and CO2 on Ross Sea phytoplankton DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS Feng, Y., Hare, C. E., Rose, J. M., Handy, S. M., DiTullio, G. R., Lee, P. A., Smith, W. O., Peloquin, J., Tozzi, S., Sun, J., Zhang, Y., Dunbar, R. B., Long, M. C., Sohst, B., Lohan, M., Hutchins, D. A. 2010; 57 (3): 368-383
  • Plants cause ecosystem nutrient depletion via the interruption of bird-derived spatial subsidies PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA Young, H. S., McCauley, D. J., Dunbar, R. B., Dirzo, R. 2010; 107 (5): 2072-2077

    Abstract

    Plant introductions and subsequent community shifts are known to affect nutrient cycling, but most such studies have focused on nutrient enrichment effects. The nature of plant-driven nutrient depletions and the mechanisms by which these might occur are relatively poorly understood. In this study we demonstrate that the proliferation of the commonly introduced coconut palm, Cocos nucifera, interrupts the flow of allochthonous marine subsidies to terrestrial ecosystems via an indirect effect: impact on birds. Birds avoid nesting or roosting in C. nucifera, thus reducing the critical nutrient inputs they bring from the marine environment. These decreases in marine subsidies then lead to reductions in available soil nutrients, decreases in leaf nutrient quality, diminished leaf palatability, and reduced herbivory. This nutrient depletion pathway contrasts the more typical patterns of nutrient enrichment that follow plant species introductions. Research on the effects of spatial subsidy disruptions on ecosystems has not yet examined interruptions driven by changes within the recipient community, such as plant community shifts. The ubiquity of coconut palm introductions across the tropics and subtropics makes these observations particularly noteworthy. Equally important, the case of C. nucifera provides a strong demonstration of how plant community changes can dramatically impact the supply of allochthonous nutrients and thereby reshape energy flow in ecosystems.

    View details for DOI 10.1073/pnas.0914169107

    View details for Web of Science ID 000274296300049

    View details for PubMedID 20133852

  • Niche partitioning among and within sympatric tropical seabirds revealed by stable isotope analysis MARINE ECOLOGY PROGRESS SERIES Young, H. S., McCauley, D. J., Dirzo, R., Dunbar, R. B., Shaffer, S. A. 2010; 416: 285-294

    View details for DOI 10.3354/meps08756

    View details for Web of Science ID 000283446400023

  • Coconut palm causes ecosystem nutrient depletion via the interruption of bird derived spatial subsidies Proceedings National Academy of Sciences Young, H. S., McCauley, D. J., Dunbar, R. B., Dirzo, R. 2010

    View details for DOI 10.1073/pnas.0914169107

  • Interactive Effects of CO2, Irradiance and Iron on Ross Sea Phytoplankton Deep Sea Research, Part I Feng, Y., Hare, C. E., Rose, J. M., Handy, S. M., DiTullio, G. R., Lee, P. A., Smith, W. O. Jr., Peloquin, J., Tozzi, S., Sun, J., Zhang, Y., Dunbar, R. B., Long, M. C., Sohst, B., Hutchins, D. A. 2010; 57: 368-383
  • Upper ocean nitrogen fluxes in the Polar Antarctic Zone: Constraints from the nitrogen and oxygen isotopes of nitrate GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS DiFiore, P. J., Sigman, D. M., Dunbar, R. B. 2009; 10
  • Late 20th century warming and freshening in the central tropical Pacific GEOPHYSICAL RESEARCH LETTERS Nurhati, I. S., Cobb, K. M., Charles, C. D., Dunbar, R. B. 2009; 36
  • Extreme longevity in proteinaceous deep-sea corals PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA Roark, E. B., Guilderson, T. P., Dunbar, R. B., Fallon, S. J., Mucciarone, D. A. 2009; 106 (13): 5204-5208

    Abstract

    Deep-sea corals are found on hard substrates on seamounts and continental margins worldwide at depths of 300 to approximately 3,000 m. Deep-sea coral communities are hotspots of deep ocean biomass and biodiversity, providing critical habitat for fish and invertebrates. Newly applied radiocarbon age dates from the deep water proteinaceous corals Gerardia sp. and Leiopathes sp. show that radial growth rates are as low as 4 to 35 mum year(-1) and that individual colony longevities are on the order of thousands of years. The longest-lived Gerardia sp. and Leiopathes sp. specimens were 2,742 years and 4,265 years, respectively. The management and conservation of deep-sea coral communities is challenged by their commercial harvest for the jewelry trade and damage caused by deep-water fishing practices. In light of their unusual longevity, a better understanding of deep-sea coral ecology and their interrelationships with associated benthic communities is needed to inform coherent international conservation strategies for these important deep-sea habitat-forming species.

    View details for DOI 10.1073/pnas.0810875106

    View details for Web of Science ID 000264790600046

    View details for PubMedID 19307564

  • Strontium-86 labeling experiments show spatially heterogeneous skeletal formation in the scleractinian coral Porites porites GEOPHYSICAL RESEARCH LETTERS Houlbreque, F., Meibom, A., Cuif, J., Stolarski, J., Marrocchi, Y., Ferrier-Pages, C., Domart-Coulon, I., Dunbar, R. B. 2009; 36
  • Synergistic effects of iron and temperature on Antarctic phytoplankton and microzooplankton assemblages BIOGEOSCIENCES Rose, J. M., Feng, Y., DiTullio, G. R., Dunbar, R. B., Hare, C. E., Lee, P. A., Lohan, M., Long, M., Smith, W. O., Sohst, B., Tozzi, S., Zhang, Y., Hutchins, D. A. 2009; 6 (12): 3131-3147
  • Recent advances in understanding Antarctic climate evolution ANTARCTIC SCIENCE Siegert, M. J., Barrett, P., Decont, R., Dunbar, R., Cofaigh, C. O., Passchier, S., Naish, T. 2008; 20 (4): 313-325
  • Isotopic evidence for hydrologic change related to the westerlies in SW Patagonia, Chile, during the last millennium QUATERNARY SCIENCE REVIEWS Moy, C. M., Dunbar, R. B., Moreno, P. I., Francois, J., Villa-Martinez, R., Mucciarone, D. M., Guilderson, T. P., Garreaud, R. D. 2008; 27 (13-14): 1335-1349
  • Persistence of depleted abalones in marine reserves of central California BIOLOGICAL CONSERVATION Micheli, F., Shelton, A. O., Bushinsky, S. M., Chiu, A. L., Haupt, A. J., Heiman, K. W., Kappel, C. V., Lynch, M. C., Martone, R. G., Dunbar, R. B., Watanabe, J. 2008; 141 (4): 1078-1090
  • Compositional variations at ultra-structure length scales in coral skeleton GEOCHIMICA ET COSMOCHIMICA ACTA Meibom, A., Cuif, J., Houlbreque, F., Mostefaoui, S., Dauphin, Y., Meibom, K. L., Dunbar, R. 2008; 72 (6): 1555-1569
  • Seismic stratigraphy of Lago Fagnano sediments (Tierra del Fuego, Argentina) - A potential archive of paleoclimatic change and tectonic activity since the Late Glacial GEOLOGICA ACTA Waldmann, N., Ariztegui, D., Anselmetti, F. S., Austin, J. A., Dunbar, R., Moy, C. M., Recasens, C. 2008; 6 (1): 101-110
  • CO2 sensitivity of Southern Ocean phytoplankton GEOPHYSICAL RESEARCH LETTERS Tortell, P. D., Payne, C. D., Li, Y., Trimborn, S., Rost, B., Smith, W. O., Riesselman, C., Dunbar, R. B., Sedwick, P., DiTullio, G. R. 2008; 35 (4)
  • Antarctic records of precession-paced insolation-driven warming during early Pleistocene Marine Isotope Stage 31 GEOPHYSICAL RESEARCH LETTERS Scherer, R. P., Bohaty, S. M., Dunbar, R. B., Esper, O., Flores, J., Gersonde, R., Harwood, D. M., Roberts, A. P., Taviani, M. 2008; 35 (3)
  • Multidecadal- to century-scale and episodes on the northern Altiplano during the middle Holocene PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY Theissen, K. M., Dunbar, R. B., Rowe, H. D., Mucciarone, D. A. 2008; 257 (4): 361-376
  • Chemical variations at ultra-structure length-scales in coral skeleton: Towards an understanding of 'vital' effects Geochimica et Cosmochimica Acta Meibom, A., Cuif, J.-P., Mostefaoui, S., Dauphin, Y., Houlbreque, F., Meibom, K., Dunbar, R. 2008
  • Multi-decadal to century scale arid episodes on the northern Altiplano during the middle Holocene Palaeogeography, Palaeoclimatology, Palaeoecology Theissen, K., Dunbar, R. B., Rowe, H. R., Mucciarone, D. A. 2008; 257: 361–376
  • Response of southern ocean phytoplankton to CO2 Geophysical Research Letters Tortell, P. D., Payne, C. D., Li, Y., S. Trimborn, B. Rost, Smith, W. O., Riesselman, C., Dunbar, R. B., Sedwick, P., DiTullio, G. R. 2008; 35

    View details for DOI 10.1029/2007GL032583

  • Sedimentary sterols as biogeochemical indicators in the Southern Ocean Organic Geochemistry Villinski, J. C., Hayes, J. M., Brassell, S., Riggert, V., Dunbar, R. B. 2008; 39: 569-588
  • Seasonal rhythms of net primary production and particulate organic carbon flux to depth describe the efficiency of biological pump in the global ocean JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Lutz, M. J., Caldeira, K., Dunbar, R. B., Behrenfeld, M. J. 2007; 112 (C10)
  • Oceanic climate and circulation changes during the past four centuries from radiocarbon in corals GEOPHYSICAL RESEARCH LETTERS Druffel, E. R., Griffin, S., Beaupre, S. R., Dunbar, R. B. 2007; 34 (9)
  • High apex predator biomass on remote Pacific islands CORAL REEFS Stevenson, C., Katz, L. S., Micheli, F., Block, B., Heiman, K. W., Perle, C., Weng, K., Dunbar, R., Witting, J. 2007; 26 (1): 47-51
  • East African soil erosion recorded in a 300 year old coral colony from Kenya GEOPHYSICAL RESEARCH LETTERS Fleitmann, D., Dunbar, R. B., McCulloch, M., Mudelsee, M., Vuille, M., McClanahan, T. R., Cole, J. E., Eggins, S. 2007; 34 (4)
  • Reconstruction of seasonal temperature variability in the tropical Pacific Ocean from the shell of the scallop, Comptopallium radula GEOCHIMICA ET COSMOCHIMICA ACTA Thebault, J., Chauvaud, L., Clavier, J., Guarini, J., Dunbar, R. B., Fichez, R., Mucciarone, D. A., Morize, E. 2007; 71 (4): 918-928
  • Biological forcing controls the chemistry of reef-building coral skeleton GEOPHYSICAL RESEARCH LETTERS Meibom, A., Mostefaoui, S., Cuif, J., Dauphin, Y., Houlbreque, F., Dunbar, R., Constantz, B. 2007; 34 (2)
  • The history of soil erosion in Kenya recorded in a 300 year-long coral Geophysical Research Letters Fleitmann, D., Dunbar, R. B., McCulloch, M., Mudelsee, M., Vuille, M., McClanahan, T., Cole, J., Andrews, C., Mucciarone, D. A. 2007

    View details for DOI 10.1029/2006GL028525

  • Recent Advances in understanding Antarctic Climate Evolution (not peer-reviewed) PAGES Newsletter Siegert, M. J., Barrett, P. J., DeConto, R., Dunbar, R. B., Cofaigh, O., Passchier, S., Naish, T. R. 2007; 15: 9-11
  • Lago Fagnano (Tierra del Fuego, Argentina) - A continuous archive of paleoclimatic change and tectonic activity since the Late Glacial Geologica Acta Waldmann, N., Ariztegui, D., Anselmetti, F. S., Jr., Austin, J. A., Dunbar, R., M. Moy, C. M., Recasens, C. 2007; 5: 1-10
  • Post-glacial seasonal diatom record of the Mertz Glacier Polynya, East Antarctica MARINE MICROPALEONTOLOGY Maddison, E. J., Pike, J., Leventer, A., Dunbar, R., Brachfeld, S., Domack, E. W., Manley, P., McClennen, C. 2006; 60 (1): 66-88
  • Vital effects in coral skeletal composition display strict three-dimensional control GEOPHYSICAL RESEARCH LETTERS Meibom, A., Yurimoto, H., Cuif, J., Domart-Coulon, I., Houlbreque, F., Constantz, B., Dauphin, Y., Tambutte, E., Tambutte, S., Allemand, D., Wooden, J., Dunbar, R. 2006; 33 (11)
  • East Antarctic Margin Marine Sediment Record of Deglaciation GSA Today Leventer, A., Domack, E., Dunbar, R., Pike, J., Stickley, C., Maddison, E., Brachfeld, S., Manley, P., McClennen, C. 2006; 16: 4-10

    View details for DOI 10.1130/GSAT01612A.1

  • Radiocarbon-based ages and growth rates of Hawaiian deep-sea corals MARINE ECOLOGY PROGRESS SERIES Roark, E. B., Guilderson, T. P., Dunbar, R. B., Ingram, B. L. 2006; 327: 1-14
  • Sediment colour analysis from digital images and correlation with sediment composition Geological Society, London, Special Publications Nederbragt, A. J., Dunbar, R. B., Osborn, A. T., Palmer , A., Thurow, J. W., Wagner, T. 2006; 267: 113-128
  • Deglacial ocean and climate seasonality in laminated diatom sediments, Mac.Robertson Shelf, Antarctica PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY Stickley, C. E., Pike, J., Leventer, A., Dunbar, R., Domack, E. W., Brachfeld, S., Manley, P., McClennan, C. 2005; 227 (4): 290-310
  • Coral skeletal delta N-15 reveals isotopic traces of an agricultural revolution MARINE POLLUTION BULLETIN Marion, G. S., Dunbar, R. B., Mucciarone, D. A., Kremer, J. N., Lansing, J. S., Arthawiguna, A. 2005; 50 (9): 931-944

    Abstract

    This study introduces a new method of tracing the history of nutrient loading in coastal oceans via delta(15)N analysis of organic nitrogen preserved in the skeleton of the massive Porites coral. Four coral cores were collected in Bali, Indonesia, from reefs exposed to high levels of fertilizers in agricultural run-off, from lagoonal corals impacted by sewage, and from a reef located 30 km offshore. Skeletal delta(15)N in the agriculturally exposed coral declined from 10.7+/-0.4 per thousand in 1970-1971, when synthetic fertilizers (-0.8 per thousand+/-0.2 per thousand) were introduced to Bali, to a depleted "anthropogenic" baseline of 3.5 per thousand+/-0.4% in the mid-1990s. delta(15)N values were negatively correlated with rainfall, suggesting that marine delta(15)N lowers during flood-bourn influxes of waste fertilizers. Reef cores exposed to untreated sewage in terrestrial discharge were enriched (7.8 and 7.3+/-0.4 per thousand), while the offshore core reflected background oceanic signals (6.2+/-0.4 per thousand). delta(15)N, N concentration, and C:N systematics indicate that the N isotopic composition of skeletal organic matter was generally well preserved over 30 years. We suggest that skeletal organic delta(15)N can serve as a recorder of past nitrogen sources. In Bali, this tracer suggests that the intensification of Western style agricultural practices since 1970 are contributing to the degradation of coastal coral reefs.

    View details for DOI 10.1016/j.marpolbul.2005.04.001

    View details for Web of Science ID 000232347600014

    View details for PubMedID 16054162

  • Shell of the Great Scallop Pecten maximus as a high-frequency archive of paleoenvironmental changes GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS Chauvaud, L., Lorrain, A., Dunbar, R. B., Paulet, Y. M., Thouzeau, G., Jean, F., Guarini, J. M., Mucciarone, D. 2005; 6
  • A comparative analysis of the nutritional and elemental composition of macroalgae from the western Antarctic Peninsula PHYCOLOGIA Peters, K. J., Amsler, C. D., Amsler, M. O., McClintock, J. B., Dunbar, R. B., Baker, B. J. 2005; 44 (4): 453-463
  • Record of redox status in laminated sediments from Lake Titicaca: A sulfur K-edge X-ray absorption near edge structure (XANES) study CHEMICAL GEOLOGY Bostick, B. C., Theissen, K. M., Dunbar, R. B., Vairavamurthy, M. A. 2005; 219 (1-4): 163-174
  • Intrabasin comparison of surface radiocarbon levels in the Indian Ocean between coral records and three-dimensional global ocean models GLOBAL BIOGEOCHEMICAL CYCLES Grumet, N. S., Duffy, P. B., Wickett, M. E., Caldeira, K., Dunbar, R. B. 2005; 19 (2)
  • Radiocarbon-based ages and growth rates of bamboo corals from the Gulf of Alaska GEOPHYSICAL RESEARCH LETTERS Roark, E. B., Guilderson, T. P., Flood-Page, S., Dunbar, R. B., Ingram, B. L., Fallon, S. J., McCulloch, M. 2005; 32 (4)
  • Pronounced occurrence of long-chain alkenones and dinosterol in a 25,000-year lipid molecular fossil record from Lake Titicaca, South America GEOCHIMICA ET COSMOCHIMICA ACTA Theissen, K. M., Zinniker, D. A., Moldowan, J. M., Dunbar, R. B., Rowe, H. D. 2005; 69 (3): 623-636
  • Record of Redox Status in Sediment Laminations from Lake Titicaca: A Sulfur K-edge X-ray Absorption Near Edge Structure (XANES) Study Chemical Geology Bostick, B. C., Theissen, K. T., Dunbar, R., Fendorf, S., Vairavamurthy, M. A. 2005; 219: 163-174
  • Distribution of magnesium in coral skeleton GEOPHYSICAL RESEARCH LETTERS Meibom, A., Cuif, J. P., Hillion, F. O., Constantz, B. R., Juillet-Leclerc, A., Dauphin, Y., Watanabe, T., Dunbar, R. B. 2004; 31 (23)
  • Hydrologic-energy balance constraints on the Holocene lake-level history of lake Titicaca, South America CLIMATE DYNAMICS Rowe, H. D., Dunbar, R. B. 2004; 23 (3-4): 439-454
  • delta C-13 variation in scallop shells: Increasing metabolic carbon contribution with body size? GEOCHIMICA ET COSMOCHIMICA ACTA Lorrain, A., Paulet, Y. M., Chauvaud, L., Dunbar, R., Mucciarone, D., Fontugne, M. 2004; 68 (17): 3509-3519
  • Coral radiocarbon records of Indian Ocean water mass mixing and wind-induced upwelling along the coast of Sumatra, Indonesia JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Grumet, N. S., Abram, N. J., Beck, J. W., Dunbar, R. B., Gagan, M. K., Guilderson, T. P., Hantoro, W. S., Suwargadi, B. W. 2004; 109 (C5)
  • Synthetic seismograms linking ODP sites to seismic profiles, continental rise and shelf of Prydz Bay, Antarctica Proc. ODP, Sci. Results Handwerger, D. A., Cooper, A. K., O'Brien, P. E., Williams, T., Barr, S. R., Dunbar, R. B., Leventer, A., Jarrard, R. D., Cooper (ed.), A. K., O'Brien (ed.), P. E., Richter (ed.) , C. 2004; 188
  • Seismic stratigraphic correlations between ODP Sites 742 and 1166: implications for depositional paleoenvironments in Prydz Bay, Antarctica Proc. ODP, Sci. Results Erohina, T., Cooper, A., Handwerger, D., Dunbar, R., Cooper (ed.), A. K., O'Brien (ed.), P. E., Richter (ed.), C. 2004; 188: 21pp
  • The Pleistocene evolution of the East Antarctic Ice Sheet in the Prydz bay region: stable isotopic evidence from ODP site 1167 GLOBAL AND PLANETARY CHANGE Theissen, K. M., Dunbar, R. B., Cooper, A. K., Mucciarone, D. A., Hoffmann, D. 2003; 39 (3-4): 227-256
  • Physical control of chlorophyll a, POC, and TPN distributions in the pack ice of the Ross Sea, Antarctica JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Arrigo, K. R., ROBINSON, D. H., Dunbar, R. B., Leventer, A. R., Lizotte, M. P. 2003; 108 (C10)
  • Late Quaternary lake-level changes constrained by radiocarbon and stable isotope studies on sediment cores from Lake Titicaca, South America GLOBAL AND PLANETARY CHANGE Rowe, H. D., Guilderson, T. P., Dunbar, R. B., Southon, J. R., Seltzer, G. O., Mucciarone, D. A., Fritz, S. C., Baker, P. A. 2003; 38 (3-4): 273-290
  • Monthly Strontium/Calcium oscillations in symbiotic coral aragonite: Biological effects limiting the precision of the paleotemperature proxy GEOPHYSICAL RESEARCH LETTERS Meibom, A., Stage, M., Wooden, J., Constantz, B. R., Dunbar, R. B., Owen, A., Grumet, N., Bacon, C. R., CHAMBERLAIN, C. P. 2003; 30 (7)
  • Sediment trap records of glacimarine sedimentation at Muller Ice Shelf, Lallemand Fjord, Antarctic Peninsula ARCTIC ANTARCTIC AND ALPINE RESEARCH Gilbert, R., Chong, A., Dunbar, R. B., Domack, E. W. 2003; 35 (1): 24-33
  • Global change - Leads, lags and the tropics NATURE Dunbar, R. B. 2003; 421 (6919): 121-122

    View details for DOI 10.1038/421121a

    View details for Web of Science ID 000180267200023

    View details for PubMedID 12520285

  • Decadal timescale shift in the C-14 record of a central equatorial Pacific coral RADIOCARBON Grottoli, A. G., Gille, S. T., DRUFFEL, E. R., Dunbar, R. B. 2003; 45 (1): 91-99
  • Stable isotopic measurements of sedimentary organic matter and N. pachyderma (s.) from Site 1166, Prydz Bay continental shelf Proc. ODP, Sci. Results Theissen, K. M., Dunbar, R. B., Cooper, A. K., Cooper (ed.), A. K., O'Brien (ed.), P. E., Richter (ed.), C. 2003; 188: 1-11
  • Antarctic Climate Evolution (ACE) Research Initiative Terra Antarctica Florindo, F., Dunbar, R., Siegert, M., DeConto, R., Barrett, P., Cooper, A., Escutia, C., Janecek, T., Larter, R., Naish, T., Powell, R. 2003; 9: 127-132
  • Global Change: Leads, lags, and the tropics Nature Dunbar, R. B. 2003; 421: 121-122

    View details for DOI 10.1038/421121a

  • Sediment trap records of glaciomarine sedimentation at Miller Ice Shelf, Lallemand Fjord, Antarctic Peninsula, Arctic Antarctic and Alpine Research Gilbert, R., Chong, A., Dunbar, R. B., Domack, E. W. 2003; 35: 24-33
  • Early deglaciation in the tropical Andes - Response SCIENCE Seltzer, G. O., Rodbell, D. T., Baker, P. A., Fritz, S. C., Tapia, P. M., Rowe, H. D., Dunbar, R. B. 2002; 298 (5591)
  • Taxon-specific differences in C/P and N/P drawdown for phytoplankton in the Ross Sea, Antarctica GEOPHYSICAL RESEARCH LETTERS Arrigo, K. R., Dunbar, R. B., Lizotte, M. P., ROBINSON, D. H. 2002; 29 (19)
  • Meridional transport in the Indian Ocean traced by coral radiocarbon JOURNAL OF MARINE RESEARCH Grumet, N. S., Guilderson, T. P., Dunbar, R. B. 2002; 60 (5): 725-742
  • Regional variability in the vertical flux of particulate organic carbon in the ocean interior GLOBAL BIOGEOCHEMICAL CYCLES Lutz, M., Dunbar, R., Caldeira, K. 2002; 16 (3)
  • Early warming of tropical South America at the Last Glacial-interglacial transition SCIENCE Seltzer, G. O., Rodbell, D. T., Baker, P. A., Fritz, S. C., Tapia, P. M., Rowe, H. D., Dunbar, R. B. 2002; 296 (5573): 1685-1686

    Abstract

    Glaciation in the humid tropical Andes is a sensitive indicator of mean annual temperature. Here, we present sedimentological data from lakes beyond the glacial limit in the tropical Andes indicating that deglaciation from the Last Glacial Maximum led substantial warming at high northern latitudes. Deglaciation from glacial maximum positions at Lake Titicaca, Peru/Bolivia (16 degrees S), and Lake Junin, Peru (11 degrees S), occurred 22,000 to 19,500 calendar years before the present, several thousand years before the Bølling-Allerød warming of the Northern Hemisphere and deglaciation of the Sierra Nevada, United States (36.5 degrees to 38 degrees N). The tropical Andes deglaciated while climatic conditions remained regionally wet, which reflects the dominant control of mean annual temperature on tropical glaciation.

    View details for Web of Science ID 000175976200057

    View details for PubMedID 12040193

  • Particulate barium fluxes in the Ross Sea MARINE GEOLOGY McManus, J., Dymond, J., Dunbar, R. B., Collier, R. W. 2002; 184 (1-2): 1-15
  • Late-Quaternary lowstands of Lake Titicaca: evidence from high-resolution seismic data PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY D'Agostino, K., Seltzer, G., Baker, P., Fritz, S., Dunbar, R. 2002; 179 (1-2): 97-111
  • Late Quaternary seismic stratigraphy of Lake Titicaca (Peru/Bolivia) Palaeogeography, Palaeoclimatology, Palaeoecology D'Agostino, K., Seltzer, G. O., Baker, P. A., Fritz, S. C., Dunbar, R. B. 2002; 179: 97-111
  • Pre-bomb radiocarbon variability inferred from a Kenyan coral record RADIOCARBON Grumet, N. S., Guilderson, T. P., Dunbar, R. B. 2002; 44 (2): 581-590
  • Insolation, moisture balance and climate change on the South American Altiplano since the last glacial maximum CLIMATIC CHANGE Rowe, H. D., Dunbar, R. B., Mucciarone, D. A., Seltzer, G. O., Baker, P. A., Fritz, S. 2002; 52 (1-2): 175-199
  • Coral radiocarbon as a tracer for meridional transport in the Indian Ocean Journal of Marine Research Grumet, N. S., Guilderson, T. P., Dunbar, R. B. 2002; 60: 725-742
  • Late quaternary climate and hydrology of tropical South America inferred from an isotopic and chemical model of Lake Titicaca, Bolivia and Peru QUATERNARY RESEARCH Cross, S. L., Baker, P. A., Seltzer, G. O., Fritz, S. C., Dunbar, R. B. 2001; 56 (1): 1-9
  • The history of South American tropical precipitation for the past 25,000 years SCIENCE Baker, P. A., Seltzer, G. O., Fritz, S. C., Dunbar, R. B., Grove, M. J., Tapia, P. M., Cross, S. L., Rowe, H. D., Broda, J. P. 2001; 291 (5504): 640-643

    Abstract

    Long sediment cores recovered from the deep portions of Lake Titicaca are used to reconstruct the precipitation history of tropical South America for the past 25,000 years. Lake Titicaca was a deep, fresh, and continuously overflowing lake during the last glacial stage, from before 25,000 to 15,000 calibrated years before the present (cal yr B.P.), signifying that during the last glacial maximum (LGM), the Altiplano of Bolivia and Peru and much of the Amazon basin were wetter than today. The LGM in this part of the Andes is dated at 21,000 cal yr B.P., approximately coincident with the global LGM. Maximum aridity and lowest lake level occurred in the early and middle Holocene (8000 to 5500 cal yr B.P.) during a time of low summer insolation. Today, rising levels of Lake Titicaca and wet conditions in Amazonia are correlated with anomalously cold sea-surface temperatures in the northern equatorial Atlantic. Likewise, during the deglacial and Holocene periods, there were several millennial-scale wet phases on the Altiplano and in Amazonia that coincided with anomalously cold periods in the equatorial and high-latitude North Atlantic, such as the Younger Dryas.

    View details for Web of Science ID 000166616000040

    View details for PubMedID 11158674

  • ODP Leg 178 Scientific Party, 2001, Holocene Climate Variability in the Antarctic Peninsula The Holocene Domack, E., Leventer, A., Dunbar, R., Taylor, F., Brachfeld, S. 2001; 11: 1-9
  • Chronology of the Palmer Deep site, Antarctic Peninsula: a Holocene palaeoenvironmental reference for the circum-Antarctic HOLOCENE Domack, E., Leventer, A., Dunbar, R., Taylor, F., Brachfeld, S., Sjunneskog, C. 2001; 11 (1): 1-9
  • El Nino - Clues from corals NATURE Dunbar, R. B. 2000; 407 (6807): 956-959

    View details for Web of Science ID 000090032500028

    View details for PubMedID 11069165

  • Carbon 13 Carbon 12 ratios of sedimentary organic matter from the Ross Sea, Antarctica: A record of phytoplankton bloom dynamics JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Villinski, J. C., Dunbar, R. B., Mucciarone, D. A. 2000; 105 (C6): 14163-14172
  • El Nino Southern Oscillation (ENSO) and decadal-scale climate variability at 10 degrees N in the eastern Pacific from 1893 to 1994: A coral-based reconstruction from Clipperton Atoll PALEOCEANOGRAPHY Linsley, R. K., Ren, L., Dunbar, R. B., Howe, S. S. 2000; 15 (3): 322-335
  • Phytoplankton taxonomic variability in nutrient utilization and primary production in the Ross Sea JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Arrigo, K. R., DiTullio, G. R., Dunbar, R. B., Robinson, D. H., VanWoert, M., Worthen, D. L., Lizotte, M. P. 2000; 105 (C4): 8827-8845
  • Rapid and early export of Phaeocystis antarctica blooms in the Ross Sea, Antarctica NATURE DiTullio, G. R., Grebmeier, J. M., Arrigo, K. R., Lizotte, M. P., ROBINSON, D. H., Leventer, A., Barry, J. B., VanWoert, M. L., Dunbar, R. B. 2000; 404 (6778): 595-598

    Abstract

    The Southern Ocean is very important for the potential sequestration of carbon dioxide in the oceans and is expected to be vulnerable to changes in carbon export forced by anthropogenic climate warming. Annual phytoplankton blooms in seasonal ice zones are highly productive and are thought to contribute significantly to pCO2 drawdown in the Southern Ocean. Diatoms are assumed to be the most important phytoplankton class with respect to export production in the Southern Ocean; however, the colonial prymnesiophyte Phaeocystis antarctica regularly forms huge blooms in seasonal ice zones and coastal Antarctic waters. There is little evidence regarding the fate of carbon produced by P. antarctica in the Southern Ocean, although remineralization in the upper water column has been proposed to be the main pathway in polar waters. Here we present evidence for early and rapid carbon export from P. antarctica blooms to deep water and sediments in the Ross Sea. Carbon sequestration from P. antarctica blooms may influence the carbon cycle in the Southern Ocean, especially if projected climatic changes lead to an alteration in the structure of the phytoplankton community.

    View details for Web of Science ID 000086400100051

    View details for PubMedID 10766240

  • Tropical Pacific forcing of decadal SST variability in the western Indian Ocean over the past two centuries SCIENCE Cole, J. E., Dunbar, R. B., McClanahan, T. R., Muthiga, N. A. 2000; 287 (5453): 617-619
  • ENSO and decadal-scale climate variability at 10 Deg N in the eastern Pacific from 1893 to 1994: A coral-based reconstruction from Clipperton Atoll Paleoceanography Linsley, B. K., Ren, L., Dunbar, R. B., Howe, S. H. 2000; 15: 322-335
  • A new estimate of the Holocene lowstand level of Lake Titicaca, central Andes, and implications for tropical palaeohydrology HOLOCENE Cross, S. L., Baker, P. A., Seltzer, G. O., Fritz, S. C., Dunbar, R. B. 2000; 10 (1): 21-32
  • The vertical flux of biogenic and lithogenic material in the Ross Sea: Moored sediment trap observations 1996-1998 DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY Collier, R., Dymond, J., Honjo, S., Manganini, S., Francois, R., Dunbar, R. 2000; 47 (15-16): 3491-3520
  • New views of tropical paleoclimate from Corals Quaternary Science Reviews Gagan, M.K., Ayliffe, L.K., Beck, J.W., Cole, J.E., Druffel, E.R.M., Dunbar, R.B., Schrag, D.P. 2000; 19: 167-182
  • Assessing between-colony oxygen isotope variability in the coral Porites lobata at Clipperton Atoll CORAL REEFS Linsley, B. K., Messier, R. G., Dunbar, R. B. 1999; 18 (1): 13-27
  • Phytoplankton community structure and the drawdown of nutrients and CO2 in the Southern Ocean SCIENCE Arrigo, K. R., ROBINSON, D. H., Worthen, D. L., Dunbar, R. B., DiTullio, G. R., VanWoert, M., Lizotte, M. P. 1999; 283 (5400): 365-367
  • Annual Records of Tropical Systems PAGES Workshop Report Series Dunbar, R.B. and , R. B., Cole, J.E., J. E. 1999; 99 (1)
  • Water column sediment fluxes in the Ross Sea, Antarctica: Atmospheric and sea ice forcing JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Dunbar, R. B., Leventer, A. R., Mucciarone, D. A. 1998; 103 (C13): 30741-30759
  • Experimental dendroclimatic reconstruction of the Southern Oscillation BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY Stahle, D. W., D'Arrigo, R. D., Krusic, P. J., Cleaveland, M. K., Cook, E. R., Allan, R. J., Cole, J. E., Dunbar, R. B., Therrell, M. D., Gay, D. A., Moore, M. D., Stokes, M. A., Burns, B. T., Villanueva-Diaz, J., Thompson, L. G. 1998; 79 (10): 2137-2152
  • High-resolution seismic reflection profiles from Lake Titicaca, Peru-Bolivia: Evidence for Holocene aridity in the tropical Andes GEOLOGY Seltzer, G. O., Baker, P., Cross, S., Dunbar, R., Fritz, S. 1998; 26 (2): 167-170
  • The relationship between new production and vertical flux on the Ross Sea Continental Shelf Journal of Marine Systems Smith, W. O. Jr., Dunbar, R. B. 1998; 17: 445-457
  • Factors influencing the distribution of diatoms and other algae in the Ross Sea JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Leventer, A., Dunbar, R. B. 1996; 101 (C8): 18489-18500
  • Lateral transport of settling particles in the Ross Sea and implications for the fate of biogenic material JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Jaeger, J. M., Nittrouer, C. A., DeMaster, D. J., Kelchner, C., Dunbar, R. B. 1996; 101 (C8): 18479-18488
  • Cycling of organic carbon and biogenic silica in the Southern Ocean: Estimates of water-column and sedimentary fluxes on the Ross Sea continental shelf JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Nelson, D. M., DeMaster, D. J., Dunbar, R. B., Smith, W. O. 1996; 101 (C8): 18519-18532
  • Calibration of stable oxygen isotope signatures in Galapagos corals PALEOCEANOGRAPHY Wellington, G. M., Dunbar, R. B., Merlen, G. 1996; 11 (4): 467-480
  • STABLE ISOTOPIC SIGNATURE OF EL-NINO SOUTHERN OSCILLATION EVENTS IN EASTERN TROPICAL PACIFIC REEF CORALS CORAL REEFS Wellington, G. M., Dunbar, R. B. 1995; 14 (1): 5-25
  • A CORAL-BASED RECONSTRUCTION OF INTERTROPICAL CONVERGENCE ZONE VARIABILITY OVER CENTRAL-AMERICA SINCE 1707 JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS Linsley, B. K., Dunbar, R. B., Wellington, G. M., Mucciarone, D. A. 1994; 99 (C5): 9977-9994
  • THE LATE PLEISTOCENE HISTORY OF SURFACE-WATER DELTA-C-13 IN THE SULU SEA - POSSIBLE RELATIONSHIP TO PACIFIC DEEP-WATER DELTA-C-13 CHANGES PALEOCEANOGRAPHY Linsley, B. K., Dunbar, R. B. 1994; 9 (2): 317-340
  • EASTERN PACIFIC SEA-SURFACE TEMPERATURE SINCE 1600-AD - THE DELTA-O-18 RECORD OF CLIMATE VARIABILITY IN GALAPAGOS CORALS PALEOCEANOGRAPHY Dunbar, R. B., Wellington, G. M., COLGAN, M. W., Glynn, P. W. 1994; 9 (2): 291-315
  • DIATOM EVIDENCE FOR LATE HOLOCENE CLIMATIC EVENTS IN GRANITE HARBOR, ANTARCTICA PALEOCEANOGRAPHY Leventer, A., Dunbar, R. B., DeMaster, D. J. 1993; 8 (3): 373-386
  • COLLECTION OF CO2 FOR C-13-C-12 MEASUREMENTS AND SIMULTANEOUS C, H, N, AND S ANALYSIS USING AN ELEMENTAL ANALYZER JOURNAL OF SEDIMENTARY PETROLOGY Mucciarone, D. A., Dunbar, R. B. 1992; 62 (4): 731-733
  • PALEOCHEMISTRY OF MANGANESE IN CORALS FROM THE GALAPAGOS-ISLANDS CORAL REEFS Shen, G. T., Campbell, T. M., Dunbar, R. B., Wellington, G. M., COLGAN, M. W., Glynn, P. W. 1991; 10 (2): 91-100
  • BIOGENIC SEDIMENTATION IN MCMURDO SOUND, ANTARCTICA MARINE GEOLOGY Dunbar, R. B., Leventer, A. R., STOCKTON, W. L. 1989; 85 (2-4): 155-179
  • RECENT DIATOM RECORD OF MCMURDO SOUND, ANTARCTICA: IMPLICATIONS FOR HISTORY OF SEA ICE EXTENT PALEOCEANOGRAPHY Leventer, A., Dunbar, R. B. 1988; 3 (3): 259-274
  • DIATOM FLUX IN MCMURDO SOUND, ANTARCTICA MARINE MICROPALEONTOLOGY Leventer, A., Dunbar, R. B. 1987; 12 (1): 49-64
  • A DEAD CENTRAL AMERICAN CORAL-REEF TRACT - POSSIBLE LINK WITH THE LITTLE ICE-AGE JOURNAL OF MARINE RESEARCH Glynn, P. W., DRUFFEL, E. M., Dunbar, R. B. 1983; 41 (3): 605-637
  • STABLE ISOTOPES IN A BRANCHING CORAL MONITOR SEASONAL TEMPERATURE-VARIATION NATURE Dunbar, R. B., Wellington, G. M. 1981; 293 (5832): 453-455

Books and Book Chapters


  • Stazioni di Ricerca in Antartide, 20.1, Il sito di ricerca Mooring A, Ross Sea, Antarctica La rete Italiana per la ricerca ecologica lungo termine (LTER-Italia) Ravaioli, M., Giglio, F., Langone, L., Capotondi, L., Bergami, C., Chiarini, F., Dunbar, R., Aliani, S., Paschini, E., Meloni, R., Focaccia, P. edited by Bertoni, R. ARACNE. 2012
  • Climate change in southern South America during the last two millennia Past climate variability from the Last Glacial Maximum to the Holocene in South America and Surrounding Regions Moy, C. M., Moreno, P. I., Dunbar, R. B., Francois, J. P., Kaplan, M. R., Villalba, R., Haberzettl,, T. edited by Vimeux, F., Sylvestre, F., Khodri, M. Springer. 2009 : 353-393
  • High resolution stable isotope and carbonate variability during the early Oligocene climate transition: Walvis Ridge (ODP Site 1263) USGS OF-2007-1047, Short Research Paper 095 Riesselman, C. R., Dunbar, R. B., Mucciarone, D. A., Kitasei, S. S. U.S. Geological Survey and The National Academies. 2007
  • Solar forcing and El Niño-Southern Oscillation (ENSO) influences on productivity cycles interpreted from a late-Holocene high-resolution marine sediment record, Adélie Drift, East Antarctic Margin USGS OF-2007-1047, Short Research Paper 036 Costa, E., Dunbar, R. B., Kryc, K. A., Mucciarone, D. A., Brachfeld, S., Roark, E. B., Manley, P. L., Murray, R. W., Leventer, A. U.S. Geological Survey and The National Academies. 2007
  • Non-Redfield production and export of marine organic matter: a recurrent part of the annual cycle in the Ross Sea, Antarctica Biogeochemistry of the Ross Sea Dunbar, R. B., Arrigo, K. R., DiTullio, G. D., Leventer, A., Lizotte, M. P., Van Woert, M. L., Robinson, D. H. edited by DiTullio, G., Dunbar, R. American Geophysical Union. 2003: 179-196
  • Biogeochemistry of the Ross Sea: An Introduction Biogeochemistry of the Ross Sea DiTullio, G. D., Dunbar, R. B. edited by DiTullio, G. D., Dunbar, R. B. American Geophysical Union. 2003: 1-4

    View details for DOI 10.1029/078ars01

  • Biogeochemistry of the Ross Sea Antarctic Research Series Monograph edited by DiTullio, G. D., Dunbar, R. B. American Geophysical Union. 2003; 78

    View details for DOI 10.1029/ar078

  • Stable isotope record of El Nino-Southern Oscillation events from Easter Island Easter Island: Scientific exploration into the world's environmental problems in microcosm Mucciarone, D. A., Dunbar, R. B. edited by Loret, J., Tanacredi, J. T. Kluwer Academic/Plenum Publishers, LTD. London/New York. 2003: 113-132
  • The Ross Sea circulation during the 1990s Biogeochemistry of the Ross Sea Van Woert, M. L., Johnson, E. S., Langone, L., Worthen, D. L., Monaghan, A., Bromwich, D. H., Meloni, R., Dunbar, R. B. edited by DiTullio, G., Dunbar, R. American Geophysical Union. 2003: 5-34

    View details for DOI 10.1029/078ars02

  • Rapid sinkimg of biogenic material during the late austral (Summer) in the Ross Sea, Antarctica Biogeochemistry of the Ross Sea Langone, L., Dunbar, R. B., Mucciarone, D. A., Ravaioli, M., Meloni, R., Nittrouer, C. A. edited by DiTullio, G., Dunbar, R. American Geophysical Union. 2003: 221-234

    View details for DOI 10.1029/078ars14

  • Biogeochemistry of the Ross Sea: A Summary Biogeochemistry of the Ross Sea DiTullio, G. D., Dunbar, R. B. edited by DiTullio, G., Dunbar, R. American Geophysical Union. 2003: 355-358

    View details for DOI 10.1029/078ars22

  • Oceanographic versus bathymetric control of benthic megafaunal communities in the SW Ross Sea, Antarctica Biogeochemistry of the Ross Sea Barry, J. P., Grebmeier, J. M., Smith, J., Dunbar, R. B. edited by DiTullio, G., Dunbar, R. American Geophysical Union. 2003: 327-354

    View details for DOI 10.1029/078ars21

  • Geologic and paleontologic features of rock samples in the cooperative Monterey organic geochemistry study, Naples Beach and Lions Head sections, California The Monterey Formation: From Rocks to Molecules Isaacs, C. M., Pollastro, R. M., Barron, J. A., Ingle, J. C., Bukry, D., Dunba, R. B., Keller, M. A., Tomson, J. H., Lewan, M. edited by Dsaacs, C. M., Rullkotte, J. Columbia University Press, New York. 2001: 373-392
  • The biological, chemical, and physical limnology of Lake Titicaca, Bolivia/Peru The Great Lakes of the World (GLOW): Food-web, Health, and Integrity Pawley, A., Fritz, S. C., Baker, P. A., Seltzer, G. O., Dunbar, R. B. edited by Munawar, M., Hecky, R. e. Backhuys Publishers, Leiden, Netherlands. 2001: 195-215
  • On the origin of carbonaceous matter, fullerenes, and elemental sulfur in rocks of the Whitewater Group, Susbury Impact Structure, Ontario, Canada Special Publications 339: Large Meteorite Impacts and Planetary Evolution II Heymann, D., Dressler, B. O., Buseck, P. R., Knell, J., Thiemens, M. H., Dunbar, R. B., Mucciarone, D., Sharpton, V. L. edited by Dressler, B. O. Geological Society of America . 2000: 345-360
  • Holocene climate variability: an update, 2000 The Way the Wind Blows: Climate, History, and Human Action Dunbar, R. B. edited by McIntosh, R. E., McIntosh, S. K., Tainter, J. E. Columbia University Press. 2000: 45-88

Conference Proceedings


  • The Coral Proto - Free Ocean Carbon Enrichment System (CP-FOCE): Engineering and Development IEEE Engineering and Development, OCEANS' 10 Marker, M. D., Kline, I., Kirkwood, W. J., Headley, K., Brewer, P. G., Peltzer, E. T., Miard, T., Chai, A., James, M., Schneider, K., Silverman, J., Caldeira, K., Koseff, J. R., Monismith, S., Opdyke, B., Dunbar, R., White, R., Dove, S., Hoegh-Guldberg, O. 2010
  • Sedimentary sterols as biogeochemical indicators in the Southern Ocean Villinski, J. C., Hayes, J. M., Brassell, S. C., Riggert, V. L., Dunbar, R. B. PERGAMON-ELSEVIER SCIENCE LTD. 2008: 567-588
  • Glacial morphology and sediment formation in the Mertz Trough, East Antarctica McMullen, K., Domack, E., Leventer, A., Olson, C., Dunbar, R., Brachfeld, S. ELSEVIER SCIENCE BV. 2006: 169-180
  • Cenozoic ice sheet history from East Antarctic Wilkes Land continental margin sediments Escutia, C., De Santis, L., Donda, F., Dunbar, R. B., Cooper, A. K., Brancolini, G., Eittreim, S. L. ELSEVIER SCIENCE BV. 2005: 51-81
  • A Late Quaternary diatom record of tropical climatic history from Lake Titicaca (Peru and Bolivia) Tapia, P. M., Fritz, S. C., Baker, P. A., Seltzer, G. O., Dunbar, R. B. ELSEVIER SCIENCE BV. 2003: 139-164
  • Multisite Record of Climate Change from Indian Ocean Corals 9th International Coral Reef Symposium Grumet, N. S., Dunbar, R. B., Cole, J. E. 2002: 359-364
  • Paleoclimate reconstruction along the Pole-Equator-Pole transect of the Americas (PEP 1) Markgraf, V., Baumgartner, T. R., Bradbury, J. P., Diaz, H. F., Dunbar, R. B., Luckman, B. H., Seltzer, G. O., Swetnam, T. W., Villalba, R. PERGAMON-ELSEVIER SCIENCE LTD. 2000: 125-140
  • New views of tropical paleoclimates from corals Gagan, M. K., Ayliffe, L. K., Beck, J. W., Cole, J. E., DRUFFEL, E. R., Dunbar, R. B., Schrag, D. P. PERGAMON-ELSEVIER SCIENCE LTD. 2000: 45-64

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