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Climate Change Institute

Ronald Davis

Professor Emeritus, Climate Change Institute

Ronald Davis

Contact Information


Deering Hall
University of Maine 
Orono, ME  04469

Research interests

Dr. Davis began his research with ecological studies of northern New England salt marshes and coastal spruce-fir forests. He has since extended his studies to the lakes, alpine tundra, and peatlands of the region. This work includes both modern ecology and paleoecology (pollen, plant macrofossils, diatoms, geochemistry). In recent years his work in the region has focused on two subjects: (1) the ecology of Maine’s bogs and fens, including plant population responses to geographic, climatic, hydrologic, and chemical variables, and (2) paleolimnology, concentrating on human impacts on lakes over the most recent 500 years. In addition, he is carrying out a project in Dominica, West Indies, on landscape and rain forest responses to hurricanes and other perturbations over the most recent 1200 years.


  • Davis, R.B., Anderson, D.S., Dixit, S.S., Appleby, P.G., and Schauffler, M. 2006. Responses of two New Hampshire (USA) lakes to human impacts in recent centuries. Journal of Paleolimnology 35:669-697.
  • Russell, E.W.B., and Davis, R.B. 2001. Five centuries of changing forest vegetation in northeastern United States. Plant Ecology 155.
  • Davis, R.B., and Anderson, D.S. 2001. Classification and distribution of freshwater peatlands in Maine. Northeastern Naturalist 8:1-50.
  • Davis, R.B., and Anderson, D.S. 1999. A numerical method and supporting database for evaluation of Maine peatlands as candidate natural areas. Maine Agricultural and Forest Experiment Station, Orono, Maine. Technical Bulletin 175. 169 pp.
  • Anderson, D.S., and Davis, R.B. 1997. The vegetation and its environments in Maine peatlands. Canadian Journal of Botany 75:1785-1805.
  • Rhodes, T.E. and Davis, R.B., 1995. Effects of late Holocene forest disturbance and vegetation change on acidic Mud Pond, Maine, USA. Ecology 76:734-746.
  • Hu, F., and Davis, R.B. 1995. Postglacial development of a Maine bog and paleoenvironmental implications. Canadian Journal of Botany 73:638-649.
  • Davis, R.B., Anderson, D.S., Norton, S.A. and Whiting, M.C., 1994. Acidity of twelve northern New England (U.S.A.) lakes in recent centuries. Journal of Paleolimnology 12(2):103-154.
  • Russell, E.W.B., Davis, R.B., Anderson, R.S., Rhodes, T.E., and Anderson, D.S., (1993). Recent centuries of vegetational change in the glaciated northeastern United States. Journal of Ecology 81:647-664.
  • Davis, R.B. and Jacobson, G.L., Jr.,1985. Late glacial and early postglacial vegetation in northern New England and adjacent areas of Canada. Quaternary Research 23:341-368.
  • Davis, R.B., Anderson, D.S. and Berge, F., 1985. Paleolimnological evidence that lake acidification is accompanied by loss of organic matter. Nature 316:436-438.

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