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Walt Oechel's early system for controlling variables in a field experiment

Walt Oechel's early system for controlling CO2/temperature/water/light in field cuvettes, on the hillside below our fertilizer plots.

Terry Chapin sorting cottongrass tillers in the field at Sagwon, Alaska

Terry Chapin sorting cottongrass tillers in the field at Sagwon, Alaska, late 1970s.

Jim Laundre, Anne Giblin, Gus Shaver, and Knute Nadelhoffer, in a snowstorm at Toolik Lake, July 18, 1984

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.

Created: 1984

Note from David Kirchman to Ivan Valiela at the Ecosystems Center

Note reads: "Ivan- You & the MBL Marine Ecology course got me going in this field. Thanks. David Kirchman"

Created: 2013

Ecosystems Center researchers' model of nutrient flows in an estuarine ecosystem

Caption reads: "Figure 4: A diagrammatic model of carbon and nitrogen flow in an estuarine ecosysem that emphasizes inputs of organic carbon and nitrogen and inorganic nutrients from upland watersheds and processing by the estuarine food web. Compartments of the mathematical model are shown in the box. The inorganic nutrients compartment comprises both ammonium and nitrate. The organic matter compartment comprises three distinct components: labile nitrogenous material, labile carbohydrate material and refractory nitrogenous materal."

Created: 1993

Ecosystems Center researchers' figure of element cycles in terrestrial ecosystems

Caption reads: "Figure 3. Major element fluxes within terrestrial ecosystems."

Created: 1986

Map of Ecosystems Center researchers' forest watershed fertilizer study in Maine

Caption reads: "Figure 1: The dashed lines mark two catchments (watersheds) at the Bear Brooks Watersheds site in Maine. Both catchments are located on a southeast-facing slope and drained by streams that persist throughout the year (dark lines). The shaded catchment was treated with fertilized labeled with 15N during 1991; the other served as a control. Filled trianges show sampling locations in the fertilized area."

Created: 1992

Simulation of global annual net primary production from Ecosystems Center researchers' Terrestrial Ecosystem Model

Caption reads: "Figure 2. Annual net primary production (NPP) for undisturbed mature vegetation of the earth's ecosystems as determined by the Terrestrial Ecosystem Model (TEM) for current climate at atmosphereic carbon dioxide levels."

Created: 1992

Robert Chambers portrait

Inscribed "Robert Chambers"

P. Reznikoff in the lab

Inscribed "P. Reznikoff"

I.H. Page in the lab

Inscribed "I.H. Page"

Eugene Dubois, 1934

Inscribed "Eugene F. DuBois, Dept. Med. Cornell, 1934"

Created: 1934

F. P. Knowlton, 1928

Inscribed "F.P. Knowlton, 1928"

Created: 1928

Ralph Lillie, 1922

Inscribed "Ralph Lillie, 1922"

Created: 1922

G. Kato in the lab

Inscribed "Prof. G. Kato, Physiological Institute, Reio University"

Chamber and Clowes, 1921

Inscribed "Robert Chambers, George Clowes, 1921"

Created: 1921

M.H. Jacobs at the microscope, 1926

Inscribed "M.H. Jacobs, 1926"

Created: 1926

Balduin Lucke, 1928

Inscribed "Balduin Lucke, Pathology, Univ. of Pennsylvania, 1928"

Created: 1928

Joseph Erlanger, 1923

Inscribed "Joseph Erlanger, 1923, Washington U."

Created: 1923

D.J. Edwards in the lab

Inscribed "D.J. Edwards"

S. Waksman in a lab coat

Inscribed "S. Waksman"

William Clark in a wicker chair

Inscribed "Wm. Muirsfield Clark"

J. H. Northrop, 1934

Inscribed "J.H. Northrop, 1934"

Created: 1934

Ferdinand Sichel, 1928

Inscribed "Ferdinand Sichel, Physiology, McGill University, 1928"

Created: 1928

Enid Keil Sichel on the stairs

Enid Keil Sichel seated on a set of stairs