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Ecosystems Center

Students at the January course on ecology at the Ecosystems Center. George Woodwell at far left. Bruce Peterson stands a far right. Circa 1979-1982
Right to Left- Ed Rastetter, John Hobbie, Frank Bowles. Ecosystems Center researchers walk on a boardwalk at a fieldsite in Abisko, Sweden.
These are methanotrophic microcosms that are being used to develop and test new approaches to modeling microbial biogeochemistry using thermodynamic approaches (namely, the principle of maximum entropy production).
Figure from page 12 of the Ecosystems Center Annual Report 1986
Two researchers taking samples at a forest research site
Figure from page 25 of the Ecosystems Center Annual Report 1992
Map of Gaius Shaver's data collection sites in Barrow, Alaska, from 1973
This is a Winogradsky column that Joseph Vallino uses in a SES course on Methods in Microbial Ecology. Almost every bacterial metabolic process that occurs on Earth also occurs in these columns that are simply constructed by placing freshwater or marine sediments augmented with a carbon source (such as saw dust) and fertilizer (N and P) in a column and topping it off with either fresh or sea water. Julie Huber is a co-instructor in the course.
Figure from page 11 of the Ecosystems Center Annual Report 1993
Terry Chapin sorting cottongrass tillers in the field at Sagwon, Alaska, late 1970s.
Left to right: Jim Laundre, Anne Giblin, Gus Shaver, and Knute Nadelhoffer, in a snowstorm at Toolik Lake, July 18, 1984. Jim was then an RA, Anne, Gus, and Knute were Assistant Scientists, all at the Ecosystems Center.

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