Joy Clein Institute of Arctic Biology Spatial Ecology Lab (SEL) 404 Irving I, Box 757000 University of Alaska Fairbanks Fairbanks, AK 99775-7000 (907)474-5660 office (907)474-6967 FAX My Personal Homepage SEL Homepage

EDUCATION

• M.S. Biology, University of Alaska Fairbanks, Fairbanks, AK, May 1994
• B.S. Biology, University of Alaska Fairbanks, Fairbanks, AK, Dec 1992
• General Studies, Miami Sunset Sr. High, Miami, Fl, June 1984

EMPLOYMENT

• Research Professional/Technician, Spatial Ecology Lab, Institute of Arctic Biology, UAF, 7/97-present
• Lab Technician, Institute of Arctic Biology, UAF, 9/95-9/97
• Payroll/Accounts Clerk, UAF, 12/96-6/97
• Assistant Storekeeper, Institute of Arctic Biology, UAF, 10/96-07/97
• Lab Technician, Institute of Arctic Biology, UAF, 5/94-1/95
• Graduate Teaching Assistant, Dept. Biology and Wildlife, UAF, Spring 1993
• Undergraduate Lab Assistant, Soil Biology Lab, Institute of Arctic Biology, UAF, 7/89-12/92
• Fish Technician, Alaska Dept. of Fish and Game, Pilot Station, AK, Summer 1990
• Kibbutz Living and Israeli Army, various locations, Israel, 6/84-11/88

GRANTS

• Grant from the NASA for project entitled: Application of the Terrestrial Ecosystem Model to simulate carbon dynamics of the BOREAS Region in 1994, 1995, and 1996: The influence of different land-cover maps. Co-Investigator with Dr. A Dave McGuire. Awarded for 9/00 to 8/01 ($25,000).
• Grant from the NASA for project entitled: Understanding the effect of land cover classification on model estimates of regional carbon cycling in the boreal forest biome. Co-Investigator with Dr. A Dave McGuire. Awarded for 9/01 to 8/02 ($15,000).

PUBLICATIONS

• McGuire, A.D., J. Walsh, J. Kimball, J. Clein, S. Euskirchen, S. Drobot, U. Herzfeld, J. Maslanik, R. Lammers, M. Rawlins, C. Vorosmarty, T. Rupp, W. Wu, and M. Calef. 2008. (pdf) The Western Arctic Linkage Experiment (WALE): Overview and synthesis. Earth Interactions 12, paper 7, 13 pages, doi:10.1175/2008EI239.1.
• Clein, J.S., A.D. McGuire, S.E. Euskirchen, and M. Calef. 2007. (pdf) The effects of different climate input data sets on simulated carbon dynamics in the western Arctic. Earth Interactions 11, paper 12, 24 pages, doi:10.1175/EI229.1.
• Balshi, M.S., A.D. McGuire, Q. Zhuang, J.M. Melillo, D.W. Kicklighter, E.S. Kasischke, C. Wirth, M. Flannigan, J. Harden, J.S. Clein, T. Burnside, J. McAllister, W. Kurz, M. Apps, and A. Shvidenko. 2007. (pdf) The role of fire disturbance in the carbon dynamics of the pan-boreal region: A process-based analysis. Journal of Geophysical Research-Biogeosciences 112, G02029, doi:10.1029/2006JG000380.
• Sitch, S., A.D. McGuire, J. Kimball, N. Gedney, J. Gamon, R. Engstrom, A. Wolf, Q. Zhuang, J.S. Clein, and K.C. McDonald. 2007. (pdf) Assessing the carbon balance of circumpolar arctic tundra using remote sensing and process modeling. Ecological Applications 17:213-234.
• Kimball, J.S., M. Zhao, A.D. McGuire, F.A. Heinsch, J. Clein, M. Calef, W.M. Jolly, S. Kang, S.E. Euskirchen, K.C. McDonald, and S.W. Running. 2007. (pdf) Recent climate driven increases in vegetation productivity for the western Arctic: Evidence of an acceleration of the northern terrestrial carbon cycle. Earth Interactions 11, paper 4, doi:10.1175/EI180.1.
• McGuire, A.D., F.S. Chapin III, C. Wirth, M. Apps, J. Bhatti, T. Callaghan, T.R. Christensen, J.S. Clein, M. Fukuda, T. Maximov, A. Onuchin, A. Shvidenko, and E. Vaganov. 2007. Responses of high latitude ecosystems to global change: Potential consequences for the climate system. In: Terrestrial Ecosystems in a Changing World. (eds. Canadell, J.G., Pataki, D.E., and Pitelka, L.F.), pp. 297-310. IGBP Series, Springer-Verlag, Berlin Heidelberg.
• Thompson, C.D., A.D. McGuire, J.S. Clein, F.S. Chapin III, and J. Beringer. 2006. Net carbon exchange across the arctic tundra-boreal forest transition in Alaska 1981 - 2000. Mitigation and Adaptation Strategies for Global Change 11:805-827.
• Euskirchen, S.E., A.D. McGuire, D.W. Kicklighter, Q. Zhuang, J.S. Clein, R.J. Dargaville, D.G. Dye, J.S. Kimball, K.C. McDonald, J.M. Melillo, V.E. Romanovsky, and N.V. Smith. 2006. (pdf) Importance of recent shifts in soil thermal dynamics on growing season length, productivity, and carbon sequestration in terrestrial high-latitude ecosystems. Global Change Biology 12:737-750.
• Zhuang, Q., A.D. McGuire, J.M. Melillo, J.S. Clein, R.J. Dargaville, D.W. Kicklighter, R.B. Myneni, J. Dong, V.E. Romanovsky, J. Harden, and J.E. Hobbie. 2003. Carbon cycling in extratropical terrestrial ecosystems of the Northern Hemisphere during the 20th Century: A modeling analysis of the influences of soil thermal dynamics. Tellus 55B:751-776.
• McGuire, A.D., M. Apps, J. Beringer, J. Clein, H. Epstein, D.W. Kicklighter, C. Wirth, J. Bhatti, F.S. Chapin III, B. de Groot, D. Efremov, W. Eugster, M Fukuda, T. Gower, L. Hinzman, B. Huntley, G.J. Jia, E. Kasischke, J. Melillo, V. Romanovsky, A. Shvidenko, E. Vaganov, and D. Walker. 2002. Environmental variation, vegetation distribution, carbon dynamics, and water/energy exchange in high latitudes. Journal of Vegetation Science 13:301-314.
• Dargaville, R., M. Heimann, A.D. McGuire, I.C. Prentice, D.W. Kicklighter, F. Joos, J.S. Clein, R.G. Esser, J. Foley, J. Kaplan, R.A. Meier, J.M. Melillo, B. Moore III, N. Ramankutty, T. Reichenau, A. Schloss, S. Sitch, H. Tian, L.J. Williams, and U. Wittenberg. 2003. Evaluation of terrestrial carbon cycle models with atmospheric CO2 measurements: Results from transient simulations considering increasing CO2, climate and land-use effects. Global Biogeochemical Cycles 16, 1092, doi:10.1029/2001GB001426.
• Clein, J.S., A.D. McGuire, X. Zhang, D.W. Kicklighter, J.M. Melillo, S.C. Wofsy, P.G. Jarvis, and J. M. Massheder. 2002. Historical and projected carbon balance of mature black spruce ecosystems across North America: The role of carbon-nitrogen interactions. Plant and Soil 242:15-32.
• McGuire, A.D., S. Sitch, J.S. Clein, R. Dargaville, G. Esser, J. Foley, M. Heimann, F. Joos, J. Kaplan, D.W. Kicklighter, R.A. Meier, J.M. Melillo, B. Moore III, I.C. Prentice, N. Ramankutty, T. Reichenau, A. Schloss, H. Tian, L.J. Williams, and U. Wittenberg. 2001. Carbon balance of the terrestrial biosphere in the twentieth century: Analyses of CO2, climate and land-use effects with four process-based ecosystem models. Global Biogeochemical Cycles 15:183-206.
• Amthor, J.S., J.M. Chen, J.S. Clein, S.E. Frolking, M.L. Goulden, R.F. Grant, J.S. Kimball, A.W. King, A.D. McGuire, N.T. Nikolov, C.S. Potter, S. Wang, and S.C. Wofsy. 2001. Boreal forest CO2 exchange and evapotranspiration predicted by nine ecosystem process models: Inter-model comparisons and relations to field measurements. Journal of Geophysical Research 106:33,623-33,648.
• Potter, C.S., S. Wang, N.T. Nikolov, A.D. McGuire, J. Liu, A.W. King, J.S. Kimball, R.F. Grant, S.E. Frolking, J.S. Clein, J.M. Chen, and J.S. Amthor. Comparison of boreal ecosystem model sensitivity to variability in climate and forest site parameters. Journal of Geophysical Research 106:33,671-33,688.
• Clein, J.S., B.L. Kwiatkowski, A.D. McGuire, J.E. Hobbie, E.B. Rastetter, J.M. Melillo, and D.W. Kicklighter. 2000. Modeling carbon responses of tundra ecosystems to historical and projected climate: A comparison of a fine- and coarse-scale ecosystem model for identification of process-based uncertainties. Global Change Biology 6:S127-140.
• McGuire A.D, J. Clein, J.M. Melillo, D.W. Kicklighter, R.A. Meier, C.J. Vorosmarty, and M.C. Serreze. 2000. Modeling carbon responses of tundra ecosystems to historical and projected climate: The sensitivity of pan-Arctic carbon storage to temporal and spatial variation in climate. Global Change Biology 6:S141-159.
• McGuire, A.D., J.M. Melillo, J.T. Randerson, W.J. Parton, M. Heimann, R.A. Meier, J.S. Clein, D.W. Kicklighter, and W. Sauf. 2000. Modeling the effects of snowpack on heterotrophic respiration across northern temperate and high latitude regions: Comparison with measurements of atmospheric carbon dioxide in high latitudes. Biogeochemistry 48:91-114.
• Schimel, J.P., J.M. Gulledge, J.S. Clein-Curley, J.E. Lindstrom, and J.F. Braddock. 1999. Moisture effects on microbial activity and community structure in decomposing birch litter in the Alaskan taiga. Soil Biology & Biogeochemistry 31:831-838.
• Schimel, J.P. and J.S. Clein. 1996. Microbial response to freeze-thaw cycles in tundra and taiga soils. Soil Biology & Biochemistry 28:1061-1066.
• Clein, J.S. and J.P. Schimel. 1995. Microbial activity of tundra and taiga soils at sub-zero temperatures. Soil Biology & Biochemistry 27:1231-1234.
• Clein, J.S. and J.P. Schimel. 1995. Nitrogen turnover and availability during succession from alder to poplar in Alaskan taiga forests. Soil Biology & Biochemistry 27:743-752.
• Clein, J.S. and J.P. Schimel. 1994. Reduction in microbial activity of birch litter due to drying and rewetting events. Soil Biology & Biochemistry 26:403-406.

PRESENTATIONS

• Balshi, M.S., A.D. McGuire, Q. Zhuang, J. Melillo, D.W. Kicklighter, E. Kasischke, C. Wirth, M. Flannigan, J. Harden, J.S.Clein, T.J. Burnside, J. McAllister, W.A. Kurz, M. Apps, and A. Shvidenko. 2007. The role of historical fire disturbance in the carbon dynamics of the pan-boreal region: A process-based analysis. 6th International Conference on Disturbance Dynamics in Boreal Forests, Fairbanks, Alaska.
• Balshi, M.S., A.D. McGuire, Q. Zhuang, J.M. Melillo, D.W. Kicklighter, E.S. Kasischke, C. Wirth, M. Flannigan, J. Harden, J.S. Clein, T. Burnside, J. McAllister, W. Kurz, M. Apps, and A. Shvidenko. 2006. The role of fire disturbance in the carbon dynamics of the pan-boreal region: A process-based analysis. Fall Meeting of the American Geophysical Union, San Francisco, California.
• Balshi, M.S., A.D. McGuire, Q. Zhuang, J.M. Melillo, D.W. Kicklighter, E.S. Kasischke, C. Wirth, M. Flannigan, J. Harden, J.S. Clein, T. Burnside, J. McAllister, W. Kurz, M. Apps, and A. Shvidenko. 2006. The role of fire disturbance in the carbon dynamics of the pan-boreal region: A process-based analysis. AAAS Arctic Division Meeting, Fairbanks, Alaska.
• Euskirchen, S.E., A.D. McGuire, D.W. Kicklighter, Q. Zhuang, J.S. Clein, R.J. Dargaville, D.G. Dye, J.S. Kimball, K.C. McDonald, J.M. Melillo, V.E. Romanovsky, and N.V. Smith. 2005. Importance of recent shifts in soil thermal dynamics on growing season length, productivity, and carbon sequestration in terrestrial high-latitude ecosystems. Seventh International Carbon Dioxide Conference. Boulder, Colorado.
• Joyce, L.A., A.D. McGuire, D.P. Coulson, J. Clein, and T. Burnside. 2005. Historical changes in carbon storage of the eastern United States: Uncertainties associated with forest harvest and agricultural land use activities. Seventh International Carbon Dioxide Conference. Boulder, Colorado.
• McGuire, A.D., L.A. Joyce, J.S. Clein, D.P. Coulson, T.J. Burnside, and J.F. Gentry. 2004. Historical changes in carbon storage of the eastern United States: Uncertainties associated with forest harvest and agricultural activities. Fall Meeting of the American Geophysical Union.
• Joyce, L., A. McGuire, D. Coulson, J. Clein, T. Burnside, and J. Gentry. 2004. Historical land use modeling of agriculture and forestry. Fall Meeting of the American Geophysical Union. San Francisco, California.
• Euskirchen, S., A.D. McGuire, D.W. Kicklighter, Q. Zhuang, J.S. Clein, K.C. McDonald, N.V. Smith, J.S. Kimball, R.J. Dargaville, and D.G. Dye. 2004. Importance of recent shifts in soil thermal dynamics on growing season length, productivity, and carbon sequestration in terrestrial high-latitude ecosystems. Fall Meeting of the American Geophysical Union. San Francisco, California.
• McGuire, A.D., L.A. Joyce, J.S. Clein, D.P. Coulson, and T.J. Burnside. 2004. Historical changes in carbon storage of the eastern United States: Uncertainties associated with forest harvest and agricultural activities. Annual Meeting of the Ecological Society of America. Portland, Oregon.
• McGuire, A.D., J.S. Clein, and Q. Zhuang. 2003. Modeling modes of variability in carbon exchange between high latitude terrestrial ecosystems and the atmosphere: A synthesis of progress and identification of challenges. Study of Environmental Change in the Arctic (SEARCH) Open Science Meeting.
• Zhuang,Q., J.M. Melillo, A.D. McGuire, R.J. Dargaville, D.W. Kicklighter, J.S. Clein, R.B. Myneni, J. Dong, V.E. Romanovsky, J. Harden, J.E. Hobbie. 2002. Effects of soil thermal dynamics on carbon cycling in extratropical terrestrial ecosystems of the Northern Hemisphere. Fall Meeting of the American Geophysical Union. San Francisco, California.
• Zhuang, Q., J.S. Clein, A.D. McGuire, R.J. Dargaville, V.E. Romanovsky, J. Harden, D.W. Kicklighter, J.M. Melillo, J.E. Hobbie, and E.B. Rastetter. 2002. Modeling the effects of soil thermal dynamics on the seasonality of carbon fluxes across northern temperate and high latitude regions. Annual Meeting of the Ecological Society of America. Tucson, Arizona.
• Clein, J.S., A.D. McGuire, and Q. Zhuang. 2002. TEM circumpolar model results with output data for tower sites. Workshop for development of a research agenda to determine the current circumpolar carbon budget. Fairbanks, Alaska.
• Zhuang, Q., J.S. Clein, A.D. McGuire, R.J. Dargaville, D.W. Kicklighter, J.M. Melillo, J.E. Hobbie, and E.B. Rastetter. 2001. Modeling the effects of soil thermal dynamics on the seasonality of carbon fluxes across northern temperate and high latitude regions. Fall Meeting of the American Geophysical Union. San Francisco, California.
• Clein, J.S., and A.D. McGuire. 2001. TEM calculations of circumpolar NEE with special emphasis on long term measurement sites: Key assumptions and input variables. Modeling workshop towards a circumpolar synthesis of net ecosystem carbon flux. La Paz, Mexico.
• Zhuang, Q., J.S. Clein, A.D. McGuire, R.J. Dargaville, D.W. Kicklighter, J.M. Melillo, J.E. Hobbie, and E.B. Rastetter. 2001. Modeling the effects of soil thermal dynamics on the seasonality of carbon fluxes across north temperate and high latitude regions. LAII Meeting. Poster.
• Clein, J.S., A.D. McGuire, R.J. Dargaville, D.W. Kicklighter, J.M. Melillo, J.E. Hobbie, and E.B. Rastetter. 2000. Modeling the effect of snowmelt dynamics on the seasonality of carbon fluxes across northern temperate and high latitude regions. Fall Meeting of the American Geophysical Union. San Francisco, California.
• Clein, J.S., A.D. McGuire, X. Zhuang, D.W. Kicklighter, J.M. Melillo, S.C. Wofsy, and P.G. Jarvis. 2000. The role of nitrogen dynamics in modeling historical and projected carbon balance of black spruce ecosystems across North America: Comparisons with CO2 fluxes measured in the Boreal Ecosystem Atmosphere Study (BOREAS). Annual Meeting of the Ecological Society of America. Snowbird, Utah.
• Zhuang, Q., V.E. Romanovsky, J.S. Clein, A.D. McGuire, J.M. Melillo, D.W. Kicklighter, and S. Wofsy. 2000. Modeling permafrost and carbon dynamics in an old black spruce ecosystem. Annual Meeting of the Ecological Society of America. Snowbird, Utah.
• Zhuang, Q., V.E. Romanovsky, A.D. McGuire, J.S. Clein, and X. Zhang. 1999. A coupled model of soil thermal and biogeochemical dynamics for application to boreal forest ecosystems: Evaluation of temporal and spatial scaling performance. Arctic Division Science Conference of the American Association for the Advancement of Science. Fairbanks, Alaska.
• McGuire, A.D., J.S. Clein, J.M. Melillo, and D.W. Kicklighter. 1999. The sensitivity of simulated net ecosystem production in mature black spruce (Picea mariana) to two different formulations of soil nitrogen transformations in the Terrestrial Ecosystem Model. Annual Meeting of the International Society of Ecological Modeling. Spokane, Washington. Invited.
• Clein, J.S., B.L. Kwiatkowski, A.D. McGuire, J.E. Hobbie, and E.B. Rastetter. 1999. Modeling carbon response of tundra ecosystems to historical and projected climate: A comparison of a regional- and a global-scale ecosystem model applied to the Kuparuk Basin. Annual Meeting of the Ecological Society of America. Spokane, Washington.
• McGuire, A.D., F.S. Chapin III, J.S. Clein, J.W. Harden, M. Heimann, T. Kaminski, D.W. Kicklighter, R.A. Meier, J.M. Melillo, J.T. Randerson, and E.B. Rastetter. 1999. The role of high latitude ecosystems in the global carbon cycle: Insights and uncertainties identified from retrospective analyses at large spatial scales. Conference sponsored on behalf of GCTE-IGBP: "How nutrient cycles constrain carbon balances in boreal forests and arctic tundra". Abisko, Sweden. Invited.
• Clein, J.S., A.D. McGuire, X. Zhang, J.M. Melillo, D.W. Kicklighter, S. Wofsy, and P. Jarvis. 1999. The role of nitrogen dynamics in modeling historical and projected carbon balance of black spruce ecosystems across North America: Comparisons with CO2 fluxes measured in the Boreal Ecosystem Atmosphere Study (BOREAS). Conference sponsored on behalf of GCTE-IGBP: "How nutrient cycles constrain carbon balances in boreal forests and arctic tundra". Abisko, Sweden.
• Clein-Curley J., A.D. McGuire, J.E. Hobbie, B. Kwiatkowski, E.B. Rastetter, J.M. Melillo, and D.W. Kicklighter. 1998. Modeling annual carbon responses of tundra ecosystems in the Kuparuk Basin to historical and projected climate: A comparison of a regional- and a global-scale ecosystem model. Arctic Division Science Conference of the American Association for the Advancement of Science. Denali National Park, Alaska.
• Zhang, X., A.D. McGuire, and J. Clein-Curley. 1998. Modeling carbon balance of an old black spruce ecosystem in northern Manitoba, Canada. Arctic Division Science Conference of the American Association for the Advancement of Science. Denali National Park, Alaska.
• McGuire, A.D., J.M. Melillo, D.W. Kicklighter, M. Heimann, J.S. Clein-Curley, R.A. Meier, W. Sauf, and J. Helfrich. 1998. Modeling seasonal heterotrophic respiration across high latitudes: Comparison with measurements of atmospheric carbon dioxide. Joint meeting of the American Society of limnology and Oceanography and the Ecological Society of America. St. Louis, Missouri. Invited.
• Clein, J. and J. Schimel. 1994. Nitrogen turnover and availability during succession from alder to poplar in Alaskan taiga forests. Ecological Society of America meeting.
• Clein, J. and J. Schimel. 1993. Mineralization and nitrification during the transition from alder to poplar in the Alaskan taiga. LTER All-Scientists meeting.
• Clein, J. and J. Schimel. 1993. Response of litter to drying and rewetting. Soil Ecology Society meeting. East Lansing, Michigan.

ACTIVITIES

• Member UAF Lab & Chemical Safety Committee (2003).
• Proposal reviews for funding agencies: UAF Center for Global Change and Arctic Systems Research (2002, 2003).