Joseph von Fischer

Joseph von FischerAssociate Professor
Office: Biology 330
Phone: 970-491-2679
Education: Ph.D., Ecology & Evolutionary Biology, Cornell University
Curriculum Vitae: Click to View
Email: Joe.von_Fischer@ColoState.EDU

Joe von Fischer is an associate professor in the Department of Biology who studies how the function of ecosystems is structured by the interactions among humans, plants, the soil and soil microbes, with particular focus on how these factors influence the emissions of greenhouse gases like methane. Joe’s research seeks to characterize the physical and biological diversity of systems that give rise to micro-sites with exceptional influence on overall system function.  Joe’s lab maintains two primary research areas.  One is the study of how biological diversity among the bacteria that consume methane within soils leads to spatial and temporal patterns in soil methane fluxes.  The other is in collaboration with the Environmental Defense Fund to use Google Streetview Cars to measure the leakage rate of natural gas from urban distribution systems around the country.

Selected Publications

Dijkstra, F. A., J. A. Morgan, J. C. von Fischer, and R. F. Follett (2011), Elevated CO2 and warming effects on CH4 uptake in a semiarid grassland below optimum soil moisture, J. Geophys. Res., 116, G01007, doi:10.1029/2010JG001288.

von Fischer, J. C., R. C. Rhew, G. M. Ames, B. K. Fosdick, and P. E. von Fischer (2010), Vegetation height and other controls of spatial variability in methane emissions from the Arctic coastal tundra at Barrow, Alaska, Journal of Geophysical Research Biogeosciences, 115, G00I03, doi:10.1029/2009JG001283

Ostrom, N.E., R. Sutka, P.H. Ostrom, A.S. Grandy, K.M. Huzinga, H. Gandhi, J.C. von Fischer and G.P. Robertson (2010) “Isotopologue data reveal bacterial denitrification as the primary source of N2O during a high flux event following cultivation of a native temperate grassland” Soil Biology and Biochemistry 42:499-406.

Mazéas, O., J. C. von Fischer, and R. C. Rhew (2009), Impact of terrestrial carbon input on methane emissions from an Alaskan Arctic lake, Geophysical Research Letters, 36, L18501, doi:10.1029/2009GL039861.

von Fischer, J. C., G. Butters, P. C. Duchateau, R. J. Thelwell, and R. Siller (2009), In situ measures of methanotroph activity in upland soils: A reaction-diffusion model and field observation of water stress, Journal of Geophysical. Research., 114, G01015, doi:10.1029/2008JG000731.

Nordt, L., J. von Fischer, L.L Tieszen and J. Tubbs. (2008). "Coherent changes in relative C4 plant productivity and climate during the late Quaternary in the North American Great Plains." Quaternary Science Reviews 27(15-16): 1600-1611.

von Fischer, J.C., L.L. Tieszen and D.S. Schimel (2008) “Climate controls on C3 vs. C4 productivity in North American grasslands from carbon isotope composition of soil organic matter.” Global Change Biology. 14(5): 1141-1155.

von Fischer, J. C., and L. O. Hedin (2007) "Controls on soil methane fluxes: Tests of biophysical mechanisms using stable isotope tracers", Global Biogeochemical Cycles, 21, GB2007, doi:10.1029/2006GB002687.

Nordt L., J.C. von Fischer and L.L. Tieszen (2007) “Late Quaternary temperature record from buried soils of the North American Great Plains.” Geology 35:159-162.

Suwa, M., J.C. von Fischer, M.L. Bender, A. Landais, and E.J. Brook (2006) "Chronology reconstruction for the disturbed bottom section of the GISP2 and the GRIP ice cores: Implications for Termination II in Greenland." Journal of Geophysical Research, 111, D02101, doi:10.1029/2005JD006032.

von Fischer J.C. and L.O. Hedin (2002) “Separating methane production and consumption with a field-based isotope pool dilution technique.”  Global Biogeochemical Cycles 16(3) 8.1-8.12.

Ostrom N.E., L.O. Hedin, J.C. von Fischer and G.P. Robertson. (2002) “Nitrogen transformations at a soil-stream interface: a stable isotope approach.” Ecological Applications 12(4) 1027-1043.

Hedin L.O., J.C. von Fischer, N.E. Ostrom, B.P. Kennedy, M.G. Brown, and G.P. Robertson (1998) “Thermodynamic constraints on nitrogen transformations and other biogeochemical processes at soil-stream interfaces.” Ecology 79(2):684-703.

von Fischer J.C. and L.L Tieszen (1995) “Carbon isotope characterization of four tropical forests in Luquillo, Puerto Rico.” Biotropica 27(2):138-148.