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J. Denis Newbold, Ph.D.

624 624 Stroud Water Research Center
Denis Newbold, Ph.D.

Research Scientist Emeritus

Ecosystem Processes Group

Contact

newbold@stroudcenter.org
tel. 610-268-2153, ext. 1227
970 Spencer Road, Avondale, PA 19311

Education

  • Ph.D., Aquatic Ecology, University of California, Berkeley, California.
  • M.S., Hydrology, Cornell University, Ithaca, New York.
  • B.S., Engineering, Swarthmore College, Swarthmore, Pennsylvania.

Interests and Expertise

The flow of nutrients (primarily nitrogen, phosphorus, and carbon) to streams and rivers and how those nutrients are processed, transformed, and transported by the stream and river ecosystem.

Professional Experience

  • Research Scientist Emeritus, Stroud Water Research Center, 2011–present.
  • Research Scientist, Stroud Water Research Center, 1993–2011.
  • Assistant Curator, Stroud Water Research Center of the Academy of Natural Sciences of Philadelphia, 1985–1992.
  • Ruth Patrick Scholar, Stroud Water Research Center, Division of Environmental Research, Academy of Natural Sciences of Philadelphia. 1983–1985.
  • Research Staff Member, Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 1982–1983.
  • Research Associate, Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 1977–1982.
  • Eugene P. Wigner Postdoctoral Fellow, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 1977–1979.

Publications

Sustained losses of bioavailable nitrogen from montane tropical forests

Brookshire, E.N.J., L.O. Hedin, J.D. Newbold, D.M. Sigman, and J.K. Jackson. 2012. Nature Geoscience 5:123–126.

Characterization and source determination of stream suspended particulate material in White Clay Creek, USA

D.L. Karwan, R. Aalto, A.K. Aufdenkampe, J.D. Newbold, and J.E. Pizzuto. 2011. Applied Geochemistry 26:S354–S356.

Water quality functions of a 15-year-old riparian forest buffer system

Newbold, J.D., S. Herbert, B.W. Sweeney, P. Kiry, and S.J. Alberts. 2010. Journal of the American Water Resources Association, 46(2):299–310.

Mitigation of nonpoint pollution by a riparian forest buffer in an agricultural watershed of the Mid-Atlantic Piedmont

Newbold, J.D., S. Herbert, and B.W. Sweeney. 2009. Stroud Preserve Watersheds National Monitoring Project Final Report.

Nutrient uptake and mineralization during leaf decay in streams

Webster, J.R., J.D. Newbold, S.A. Thomas, H.M. Valett, and P.J. Mulholland. 2009. International Review of Hydrobiology 94:372–390.

See all publications by Stroud Center authors

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