Daniel Joseph Conley

Lund University
Department of Geology
Solvegatan 12, SE-223 62
Lund, Sweden
Telephone: +46462220449
FAX: +46462224830

B.S., Chemistry, Tulane University, New Orleans, LA, USA, 1979.
M.S., Environmental Studies, University of Wisconsin - Green Bay, Green Bay, WI, USA, 1983.
Ph.D. Chemical Oceanography, Department of Atmospheric and Oceanic Science, University of Michigan, Ann Arbor, MI, USA, 1987.

Professional Positions:
  • Professor, Lund University, Sweden 2010-present.
  • Marie Curie Chair, Lund University, Sweden 2007-2009.
  • Visiting Scientist, Institute for Ecosystem Studies, Millbrook, NY, USA, 2005-2009.
  • Professor (External), Department of Marine Ecology, Aarhus University, 2003-2007.
  • Professeur invite, UMR Sisyphe, UniversitŠ¹ Pierre et Marie Curie, Paris VI, France, 2002.
  • Senior Scientist, Department of Marine Ecology, National Environmental Research Institute, Ministry of the Environment, Roskilde, Denmark, 1995-2006.
  • Visiting Scientist (3 mos. per year), Department of Systems Ecology, Stockholm University, Stockholm, Sweden, 1991-1994.
  • Research Assistant Professor, Horn Point Laboratory, Center for Environmental Studies, University of Maryland, Cambridge, MD, USA, 1990-1994.

  • Research Interests and Activities:
    Biogeochemical cycles of nutrients and organic material in aquatic systems. Silicon cycling and the role of Si in structuring phytoplankton communities and primary production. The biogeochemical cycle of Si in terrestrial ecosystems and its linkage with aquatic ecosystems. Eutrophication of aquatic systems and the use of paleoecological techniques to assess historical changes in productivity. Use of monitoring data to increase our understanding of aquatic ecosystems. Management of aquatic ecosystems.

    Distinguished Awards and Memberships:
    Awards: Wallenberg Scholar 2012-2016. Pew Marine Conservation Fellow 2010-1012. Recognition for Outstanding Contribution to Peer Review, Associate Editor, Estuaries, 2005. Outstanding Achievement Award for an Oceanic Graduate Student in the Department of Atmospheric and Oceanic Science, University of Michigan, Ann Arbor, MI, USA, 1986. Rackham Dissertation Fellowship, University of Michigan, Ann Arbor, MI, USA, 1986. Westinghouse Science Talent Search Semi-Finalist, USA, 1975. Professional Societies: American Geophysical Union American Society for Limnology and Oceanography Estuarine Research Federation

    Selected Publications:

    Struyf, E. and D.J. Conley. 2013. The biogeochemical silica cycle from land to ocean. Silicon 5: 1-2.

    Conley, D.J. 2012. Saving the Baltic Sea. Nature 486: 463-464.

    Harrison, J., P. Frings, A. Beusen, D.J. Conley, and M. McCrackin. 2012. Global importance, patterns, and controls of dissolved silica retention in lakes and reservoirs. Global Biogeochem. Cycles 26: GB2037, doi:10.1029/2011GB004228.

    Triplett, L.D., D.E. Engstrom, and D.J Conley. 2012. Changes in amorphous silica sequestration with eutrophication of riverine impoundments. Biogeochemistry 108: 413-427.

    Struyf, E. and D.J. Conley. 2012. Synthesis and Emerging Ideas: Emerging understanding of the ecosystem silica buffer. Biogeochemistry 107: 9-18.

    Sun, X., P. Andersson, C. Humborg, B. Gustafsson, D.J. Conley, P. Crill, C.-M. Mörth. 2011. Climate dependent diatom production is preserved in biogenic Si isotope signatures. Biogeosciences 8: 3491-3499.

    Clymans, W., E. Struyf, G. Govers and D.J. Conley. 2011. Anthropogenic impact on biogenic Si pools in temperate soils. Biogeosciences 8: 2281-2293.

    Struyf, E., A. Smis, S. Van Damme, J. Garnier, G. Govers, B. Van Wesemael, D.J. Conley, O. Batelaan, E. Frot, W. Clymans, F. Vandevenne, C. Lancelot, P. Goos, and P. Meire. 2010. Historical land use change has lowered terrestrial silica mobilization. Nature Comm. 1: doi:10.1038/ncomms1128.

    Struyf, E., C.-M. Mörth, C. Humborg, and D.J. Conley. 2010. An enormous amorphous silica stock in boreal wetlands. J. Geophy. Res. Biogeosciences 115: G04008, doi:10.1029/2010JG001324.

    Struyf E., A. Smis, S. Van Damme, P. Meire and D.J. Conley. 2009. The global biogeochemical silicon cycle. Silicon 1: 207-213.

    Laruelle, G.G., V. Roubeix, A. Sferratore, B. Brodhern, D. Ciuffa, D.J. Conley, H. Duerr, J. Garnier, C. Lancelot, Q.L.T. Phong, M. Meybeck, P. Michalopoulos, B. Moriceau, S. Ni Longphuirt, S. Loucaides, L. Papush, M. Presti, O. Ragueneau, P.A.G. Regnier, L. Saccone, C.P. Slomp, C. Spiteri, and P. Van Cappellen. 2009. Anthropogenic perturbations of the silicon cycle at the global scale: Key role of the land-ocean transition. Global Biogeochem. Cycles 23: GB4031, doi:10.1029/2008GB003267.

    Struyf, E., W. Opdekamp, H. Backx, S. Jacobs, D.J. Conley, and P. Meire. 2009. Vegetation and proximity to the river control amorphous silica storage in a riparian wetland (Biebrza National Park, Poland). Biogeosciences 6:523-631.

    Conley, D.J., H.W. Paerl, R.W. Howarth, D.F. Boesch, S.P. Seitzinger, K.E. Havens, C. Lancelot, and G.E. Likens. 2009. Controlling eutrophication by reducing both nitrogen and phosphorus. Science 323: 1014-1015.

    Struyf, E. and D.J. Conley. 2009. Silica: an essential nutrient in wetland biogeochemistry. Front. Ecol. Environ. 6: 88-94.

    Conley, D.J., G.E. Likens, D. Buso, L. Saccone, S.W. Bailey, C. Johnson. 2008. Deforestation causes increased dissolved silicate losses in the Hubbard Brook Experimental Forest. Global Change Biol. 14: 2548-2554.

    Saccone, L., D.J. Conley, G.E. Likens, S.W. Bailey, D.C. Buso, and C.E. Johnson. 2008. Distribution of amorphous silica in soils of the Hubbard Brook Experimental Forest. Soil Sci. Soc. J. Amer. 72: 1637-1644.

    Conley, D.J., C. Humborg, E. Smedberg, L. Rahm, L. Papush, Å. Danielsson, A. Clarke, M. Pastuszak, J. Aigars, D. Ciuffa, C.-M. Mörth. 2008. Past, present and future state of the biogeochemical Si cycle in the Baltic Sea. J. Mar. Sys. 73: 338-346.

    Saccone, L., D.J. Conley, E. Koning, D. Sauer, M. Sommer, D. Kaczorek, S.W. Blecker, and E.F. Kelly. 2007. Assessing the extraction and quantification of amorphous silica in soils of forest and grassland ecosystems. Eur. J. Soil Sci. 58: 1446-1459.

    Saccone, L., D.J. Conley, E. Koning, D. Sauer, M. Sommer, D. Kaczorek, S.W. Sauer, D., L. Saccone, D.J. Conley, L. Herrmann, and M. Sommer. 2006. Review of methodologies for extracting plant-available and amorphous Si from soils and aquatic sediments. Biogeochemistry 80: 89-108.

    Conley, D.J. 2002. Terrestrial ecosystems and the global biogeochemical silica cycle. Global Biogeochem. Cycles 16: 1121, doi:10.1029/2002GB001894.

    Postdoctoral Associates:
    Wim Clymans

    Graduate Advisor:
    Claire Schelske

    Title at Hubbard Brook:
    Principal Investigator