Home , Go Back to faculty page DANIEL R. ENGSTROM PhD, 1983, University of Minnesota Adjunct Faculty Director, St. Croix Watershed Research Station, Science Museum of Minnesota You can email Dr. Engstrom at dre@umn.edu or dre@smm.org

Professional Society Memberships

• American Chemical Society,
• American Geophysical Union,
• American Quaternary Association,
• American Society of Limnology and Oceanography,
• Ecological Society of America,
• International Association for Theoretical and Applied Limnology,
• Sigma Xi

Research Interest

My research interests are in geological limnology(paleolimnology, limnochronology, geochemistry). My current research projects include:

1. atmospheric mercury deposition to lakes and watersheds in the Arctic, mid-latitudes, and subtropics;
2. historic nutrient and sediment loading to the upper Mississippi and St. Croix rivers;
3. the paleohydrology and paleo-chemistry of saline lakes in the northern Great Plains;
4. long-term human impacts on lake systems worldwide.

Selected Publications

• Engstrom, D.R., Schottler, S.P., Leavitt, P.R., and Havens, K.E.  2006. A re-evaluation of the cultural eutrophication of Lake Okeechobee, Florida, using multiproxy sediment records. Ecological Applications (in press).
• Schottler, S.P. and Engstrom, D.R.  2006. A chronological assessment of Lake Okeechobee sediments using multiple dating markers. Journal of Paleolimnology (in press).
• Engstrom, D.R. and Fritz, S.C.  2006. Coupling between primary terrestrial succession and the trophic development of lakes at Glacier Bay, Alaska. Journal of Paleolimnology (in press).
• Fitzgerald, W.F., D.R. Engstrom, C H. Lamborg, C.-M. Tseng, P. Balcom, and C.R. Hammerschmidt.  2005. Modern and historic atmospheric mercury fluxes in northern Alaska: global Sources and Arctic depletion.  Environmental Science and Technology 39: 557-568.
• Engstrom, D.R. 2005.  Long-term changes in iron and phosphorus sedimentation in Vadnais Lake, Minnesota, resulting from ferric chloride addition and hypolimnetic aeration.  Lake and Reservoir Management 21:96-106.
• Shapley, M.D., W.C. Johnson, D.R. Engstrom, and W.R. Osterkamp. 2005. Late Holocene flooding and drought in the Northern Great Plains, reconstructed from tree rings, lake sediments and ancient shorelines.  The Holocene 15: 29-41.
• Hines, N.A., Brezonik, P.L., and D.R. Engstrom.  2004.  Sediment and porewater profiles and fluxes of mercury and methylmercury in a small seepage lake in northern Minnesota. Environmental Science and Technology 38: 6610-6617.
• Tseng, C.M., C.H. Lamborg, W.F. Fitzgerald, and D.R. Engstrom. 2004.  Cycling of dissolved elemental mercury in Arctic Alaskan lakes.  Geochmica Cosmochimica Acta 68: 1173-1184.
• Fritz, S.C., D.R. Engstrom, and S, Juggins. 2004.  Patterns of early lake evolution in boreal landscapes: a comparison of stratigraphic inferences with a modern chronosequence in Glacier Bay, Alaska. The Holocene 14: 828-840.
• Ramstack, J.M., S.C. Fritz, and D.R. Engstrom. 2004.  Twentieth-century water-quality trends in Minnesota lakes compared with pre-settlement variability.  Canadian Journal of Fisheries and Aquatic Sciences 61: 561-576.
• Holmes, J.A. and D.R. Engstrom.  2003.  Non-marine ostracod records of Holocene environmental change. In Global Change in the Holocene (A. MacKay, R.W. Battarbee, H.J.B.Birks and F. Oldfield, eds.). Arnold, London. pp. 310-327.
• Ramstack, J.M., S.C. Fritz, D.R. Engstrom, and S.A. Heiskary.  2003.  The application of a diatom-based transfer function to evaluate regional water-quality trends in Minnesota since 1970.  Journal of Paleolimnology 29: 79-94..
• Lamborg, C.H., W.F. Fitzgerald, A.W.H. Damman, J.M. Benoit, P.H. Balcom, and D.R. Engstrom. 2002. Modern and historic atmospheric mercury fluxes in both hemispheres: global and regional mercury cycling implications. Global Biogeochemical Cycles 16: 1104, doi:10.1029/2001GB1847.
• Yu, Z., E. Ito, D.R. Engstrom, and S.C. Fritz.  2002.  A 2100-year decadal-resolution trace-element and stable-isotope record from Rice Lake in the northern Great Plains, USA. The Holocene 12: 605-617.
Engstrom, D.R. and D.I. Wright.  2002. Sedimentological effects of aeration-induced lake circulation. Lake and Reservoir Management 18: 201-214.
• Kamman, N. C. and D. R. Engstrom.  2002. Historical and present fluxes of mercury to Vermont and New Hampshire lakes inferred from 210Pb dated sediment cores.  Atmospheric Environment 36: 1599-1609.

Recent Research Support through the Science Museum of Minnesota

• 2003-06  Natural and anthropogenic sources of mercury to the atmosphere: global and regional contributions. U.S. EPA STAR Grant: In collaboration with the Univ. of Connecticut.
• 2004-06  Enhanced rates of mercury methylation from sulfate deposition: a whole wetland experiment. Great Lakes Commission: Great Lakes Atmospheric Deposition Program.
• 2003-04  Paleolimnological Assessment of Lake Okeechobee: do the sediments contain a systematic and reliable chronological history of the lake? South Florida Water Management District
• 2002-03  Evaluation of recent trends in atmospheric mercury deposition in south Florida from lake-sediment records.  Florida Department of Environmental Protection
• 2000-03  A historic reconstruction of sediment, phosphorus, metal, and PCB loadings to Lake St. Croix. Metropolitan Council, Metro Environment Partnership Grant