A Campbell CR21x data logger at one of the Ecosystems Center's LTER sites.
Lee Stuart (grad student from San Diego State/UC Davis) collecting Eriophorum (cottongrass) seed, late 1970s. The location is probably along the Elliot Highway north of Fairbanks, Alaska.
Researchers setting up an early version of "greenhouse" experiments at Toolik Lake, Alaska.
A Sunday hike in the Brooks Range, Alaska, about 1980-81. The woman is Barbara Lachenbruch (student of Terry Chapin's, Univ Alaska). Behind her is Tom and Ellen (last names unknown), working at Toolik Lake at the time.
Walt Oechel's early system for controlling CO2/temperature/water/light in field cuvettes, on the hillside below our fertilizer plots.
Counting seedlings in small disturbed plots, around 1977-78 in Alaska. Lee Stuart (student, San Diego State/UC Davis) on the left, Pete Tryon (RA, Univ Alaska) and Terry Chapin (Univ Alaska) on the right.
Map of Gaius Shaver's data collection sites in Barrow, Alaska, from 1973Created: 1973
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 reads: "Ivan- You & the MBL Marine Ecology course got me going in this field. Thanks. David Kirchman"Created: 2013
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.
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).
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
Caption reads: "Figure 3. Major element fluxes within terrestrial ecosystems."Created: 1986
Caption reads: "Brian Fry and Bob Michener in the new Mass Spectrometer Laboratory"Created: 1985
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
Slide reads- "PIE 1"
Slide reads- "Columbia River LMER, John Baross & Charles Simenstad setting up CTD-Pump Profiler in Estuary"
Slide reads- "Columbia River LMER, Deployment of CTD-Profiling Pump [unreadable] Package During ETM Sampling"Created: 1991-07
Slide reads- "PIE 4"
Slide reads- "PIE 2"
Slide reads- "Columbia River LMER, Deployment of Owen (sp?) Tube; Sampling Aggregates"Created: 1991-07
Back of photo reads- "A. Giblin & Brian Fry, Bruce Peterson, Acid Rain"Created: 1986
Back of photo reads- "Edward Rastetter, left,Robert McKane"