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Dr. Jeffrey M. Welker Fulbright Distinguished US Arctic Chair, Norway Professor of Ecology Department of Biological Sciences University of Alaska Anchorage 3211 Providence Drive, EBL 117 ▪ Anchorage, AK 99508 907-786-6110 ▪ [email protected] EDUCATIONAL BACKGROUND Ph.D. Department of Rangeland Ecology and Management, Texas A&M University, College Station, TX, 1985. Carbon and nitrogen cycling in native bunchgrass plants. M.S. Range Science, Range and Animal Science Department, Montana State University, Bozeman, MT, 1982. Climate change effects on prairie vegetation. B.S. Agriculture-Range Science Major, Range and Animal Science Department, Montana State University, Bozeman, MT, 1980. PROFESSIONAL EXPERIENCE Academic Appointments Fulbright Distinguished US Arctic Chair-Norway, March 2012-present Professor of Biological Sciences, University of Alaska Anchorage, August 2004-present Director, Environment and Natural Resources Institute (ENRI), University of Alaska Anchorage, August 2004-2012 Director, ENRI Stable Isotope Laboratory, 2005-2012 Sr. Research Scientist, Natural Resource Ecology Laboratory, Colorado State University, 2001-2004 Associate Professor, Department of Renewable Resources, University of Wyoming, 1996-2001 (Tenured 2000) Research Scientist, Natural Resource Ecology Laboratory, Colorado State University, 1993-2001 Senior Scientific Officer, Institute of Terrestrial Ecology, Merlewood Research Station, Cumbria, England, Natural Environment Research Council, UK, 1990-1993 Research Assistant Professor, Department of Agronomy and Range Science, University of California, Davis, 1988-1990 Post-doctoral Research Associate, Department of Agronomy and Range Science, University of California, Davis, 1986-1988 GRANTSMANSHIP (42 awards, total exceeding $18,000,000) 1. Beard, K., Welker, J. M. and Leffler, J. (2013) Collaborative Research: Tropic mismatch between geese and wet sedge tundra. National Science Foundation, Office of Polar Programs, $1,277,065. 1 2. Welker, J. M. and Spalinger, D. (2012) Comparative ecology of caribou heards across Alaska: Collaborations between USFWS Land Conservation Consortiums. USGS Alaska Climate Science Center, $59,988. 3. Welker, J M., Cable, J., and Cherry, J. (2012) EAGER-Collaborative Research: Quantifying changes in the Arctic hydrological cycle at the landscape scale using advances in water vapor isotope (18O and D) techniques and aircraft. National Science Foundation, Office of Polar Programs, $288,000. 3. Post, E., Sullivan, P. F., Welker, J. M., and Eissenstat, D. M. (2011) Collaborative Research: Linking belowground phenology and ecosystem function in a warming Arctic. National Science Foundation, Office of Polar Programs. $1,300,000. 4. Gonzalez-Meler, M., Sturchio, N., Welker, J. M., and Filley, T.R. (2011) Permafrost thawing and vegetation change and effects on cryoturbation rates, CO2 and CH4 processes. Department of Energy, Terrestrial C cycle Research Program. $1,010,000. 5. Spalinger, D. E., Welker, J. M., Sullivan, P. F., and Collins, W. (2011) The Tundra in Transition: Unraveling the Dynamics of Western Alaska Caribou – Tundra Ecosystems. USFWS LCC program. $200,000. 6. Campbell, R., Welker, J. M., Crusius, J., Gasso, S., Schroth, A., and Thomas, A. (2010) Melting ice, habitat change and nutrient flux: Hydrological, biogeochemical and biological linkages between the Copper River watershed and the coastal Gulf of Alaska. NASA. $1,388,000. 7. Welker, J. M., Buck, C. L., van Tets, I. G., Burns, J. M., and Cable, J. (2009) MRI Acquisition: Detecting and monitoring changes in the arctic using stable isotope techniques: A facility that contributes to IPY, NEON and beyond. NSF Major Research Instrumentation. $588,000. 8. Oberbauer, S., Welker, J. M., Sullivan, P. F., Tweedie, C., and Hollister, R. (2008) Collaborative Research: Sustaining and amplifying the ITEX AON through automation and increased interdisciplinarity of observations. NSF Office of Polar Programs, Arctic Observing Network. $1,233,000. 9. Czimczik, C. I., Welker, J. M., Sullivan, P. F., and Schimel, J. (2008) Processes governing the ages (14C) and magnitudes of ecosystem respiration in the High Arctic. NSF Office of Polar Programs. $1,250,000. 10. Cable, J., and Welker, J. M. (mentor). (2009) The consequences of permafrost degradation on plantwater use strategies. NSF Office of Polar Programs, Postdoctoral Fellowship. $208,000. 11. Hagedorn, B., Perry, M., Spalinger, D. E., and Welker, J. M. (2008) Enhancing Research and Education at the University of Alaska Anchorage with a state-of-the-art Liquid Chromatograph-Ion Trap Mass Spectrometer. NSF Major Research Instrumentation. $411,000. 12. Welker, J. M., Sveinbjörnsson, B., Sullivan, P. F. (2006) Mechanisms and feedback consequences of shrub expansion following long-term increases in winter snow depth in northern Alaska: a legacy for IPY. National Science Foundation, Office of Polar Programs. $622,000. 2 13. Welker, J. M., Sveinbjörnsson, B., Sullivan, P. F., and Boggs, K. (2006) IPY: Collaborative Research: Study of arctic ecosystem changes in the IPY using the International Tundra Experiment. NSF Office of Polar Programs. $257,000. 14. Welker, J. M., Sveinbjörnsson, B., Peterson, K., Olsson, P., Boggs, K, and Carlson, M. (2005) The UAA Boreal Forest Environmental Observatory (BFEO): A campus-based education and research platform that engages undergraduates and strengthens national funding competitiveness. UAA Enhancement Fund. $130,000. 15. Welker, J. M., Wipfli, M., and Rinella, D. (2005) UAA & UAF Collaborative Research: Comparative marine-terrestrial nitrogen linkages in streams of the Kenai Peninsula. UAA’s Chancellor’s Fund. $24,500. 16. Welker, J. M., Hallet, B., Sletten. R., Schimel, J., and Fahnestock, J. T. (2002) Coupling of carbon and water cycles in a cold, dry ecosystem: Integrative physical, chemical and biological processes and their controls on CO2 exchange. National Science Foundation, Biocomplexity in the Environment. $1,700,000. 17. Welker, J. M., and Fahnestock, J. T. (2001) Mixedgrass Prairie Responses to Simultaneous Increases in Winter Snow Depth and Changes in Summer Rainfall: C, N and H2O dynamics. National Institute of Global Climate Change, Great Plains Region, Department of Energy. $360,000. 18. Welker, J. M., Vance, G., Stahl, P. D., and Fahnestock, J. T. (2001) Controls of C sequestration on Northern Rocky Mountain Rangelands. USDA-NRI. $180,000. 19. Welker, J. M. and White, J. (2000) Isotopic (18O & D) characteristics of precipitation across the U. S.: Temporal patterns and controlling processes. National Science Foundation, Earth System History Program. $465,000. 20. Lockwood, J., Welker, J. M., and Kazmer, D. (2000) The Pied Piper IPM Strategy: Attracting rangeland grasshoppers with plant oils. USDA CSREES. $200,000. 21. Welker, J. M., Fahnestock, J. T., and Bilbrough, C. J. (1999) Species responses to changes in climate across arctic gradients using the North American ITEX network (NATEX): influences on community and ecosystem processes. NSF Office of Polar Programs. $475,000. 22. Molau, U., Henry, G., and Welker, J. M. (1998) Climatic impacts on annual growth and physiology in Cassiope tetragona. Swedish Royal Academy of Science, Polar Directorate, Tundra Northwest Expedition 1999. $150,000. 23. Welker, J. M., Poulson, S. Smith, W. K., Drever, T., Jackson, S. (1998) A stable isotope facility to study terrestrial processes and their interactions with climate and the environment. National Science Foundation, Major Research Instrumentation. $335,000. 24. Welker, J. M., Fahnestock, J. T., and Jones, M. H. (1997) Winter C flux in arctic ecosystems under changing climate: Effects of soil carbon and active layer dynamics. NSF Office of Polar Programs. $450,000. 3 25. Smith, W. K., Kelly, R. D., Welker, J. M., Hunt, E. R., and Reiners, W. A. (1997) Quantification of carbon sources and sinks for northern plains and mountain landscapes using simultaneous aircraft, tower and leaf measurements of CO2 and H2O vapor flux and stable isotopes. National Science Foundation, Joint Program on Terrestrial Ecology and Global Climate Change (TECO). $1,200,000. 26. Jackson, S. E., and Welker, J M. (1997) Aquatic plant cellulose isotopic abundances as a climate proxies. Earth System History, Short-term Grant for Exploratory Research (SGER), National Science Foundation. $49,000. 27. Jackson, S. E., and Welker, J M. (1997) Vegetation and stable isotopes as paleoclimate proxies. Faculty grant-in-aid program, Office of Research, University of Wyoming. $5,000. 28. Schimel, D., Kelly, E., Welker, J. M., Elliott, T. and Valentine, D. (1994) A stable isotope facility to study atmosphere-biosphere interactions. National Science Foundation, Major Research Instrumentation. $255,000. 29. Welker, J. M. (1994) Comparative responses of moist and dry tundra to altered snow cover and warmer summer temperatures. NSF Office of Polar Programs. $700,000. 30. Welker, J. M. (1994) International Tundra Experiment, (ITEX) Travel Supplement. NSF Office of Polar Programs. $16,000. 31. Welker, J. M. (1995) Winter CO2 flux in Arctic systems. NSF Office of Polar Programs. $96,000. 32. Singer, F., Welker, J. M., Coughenour, M., Valentine, D., and Elliott, T. (1994) Ungulate-plant interactions in 5 Rocky Mountain National Parks, National Biological Survey, United States Geological Survey. $800,000. 33. Callaghan, T. V. and Welker, J. M. (1992) Interactions between species at community boundaries in the uplands: responses to simulated changes in climate and the environment. The Initiative for Global Environmental Research (TIGER), Natural Environmental Research Council, U.K. $375,000. 34. Callaghan, T. V., Press, M. C., Lee, J. A. and Welker, J. M. (1991) Arctic ecosystems and Climate Change. Natural Environmental Research Council, U.K., Arctic Special Topic. $400,000. 35. Welker, J. M. (1991) Ungulate use of winter ranges in the High Arctic. The British Council, England. Travel Grant to Canada. $2,000. 36. Welker, J. M. (1991) Studies in arctic and alpine ecophysiology. The British Council, Travel Grant, England. Travel Grant to Switzerland. $2,000. 37. Welker, J. M. (1991) Correlation between D and 13C in Arctic clonal plants: A retrospective analysis of climate and physiological isotopes. Natural Environmental Research Council/Isotope Geosciences program. $30,000. 38. Rice, K. J., and Welker, J. M. (1990) Ecological genetics of blue oak responses to drought and herbivory. University of California Integrated Hardwood Range Management Competitive Grant Program. $85,000. 4 39. Demment, M., Jones, M., Rice, K. J., Welker, J. M. (1989) Sustained plant and animal productivity in grass-clover ecosystems of California. University of California Sustainable Agriculture Competitive Grant Program. $130,000. 40. Rice, K. J., Welker, J. M., and Menke, J. W. (1987) Ecology and regeneration of Hardwood Rangelands: The influence of water, herbivory and competition on stability, productivity and management options. University of California Integrated Hardwood Range Management Competitive Grant Program. $150,000. 41. Menke, J. W., and Welker, J. M. (1986) Ecological limitations to sustained production on woodland and savanna ranges. USDA Rangeland Resource Competitive Grant Program. $77,000. 42. Welker, J. M. (1981) Grassland responses to supplemental water: Effects on domestic animal forage digestibility. Montana State University Research Creativity Program. $1,000. PUBLICATIONS (125) Research Gate score=38.87 2012 & 2013 only 1. Lupascu, M., Welker, J. M., Seibt, U., Xu, X., Lindsey, D. S., Czimczik, C. I. (2013). The magnitude, seasonality and sources of CO2 emissions in a High Arctic polar semi-desert in NW Greenland are controlled by precipitation in puts and soil water conditions. Nature Climate Change (in press). 2. Pattison, R., and Welker, J. M. (2013) Differential ecophysiological response of deciduous shrubs and a graminoid to long-term snow reductions and additions in moist acidic tundra, Northern Alaska. Oecologia (in press). 3. Causey, D., Bargmann, N. A., Burnham, K. K., Burnham, J. L., Padula, V. M., Johnson, J. A., and Welker, J. M. (2013) Biogeochemical indicators in High- and Low-Arctic marine and terrestrial avian community changes: Comparative isotopic (δ13C, δ15N) studies in Alaska and Greenland. Marine Biology (in press). 4. Healey, N. Oberbauer, S., Ahrends, H. , Dierick, D., Welker, J. M. et al. (2013) A Mobile Instrumented Sensor Platform for Long-term Terrestrial Ecosystem Observation: A Case Study in the Arctic. J of Environmental Informatics (in press). 5. Liu, Z., Bowen, G., Yoshimura, K., and Welker, J. M. (2013) Pacific North American teleconnection controls on precipitation isotopes (δ18O) across the contiguous USA and adjacent regions. J. Climate doi:10.1175/JCLI-D-13-00334.1. 6. Oberbauer, S. F., Elmendorf,, S. C., Troxler, T., Hollister, R. D., Welker, J. M., et al. (2013) Phenological responses of tundra plants to background climate variation tested using the International Tundra Experiment (ITEX) Proceedings of the Royal Academy 8 025023. 5 7. Zeno, F., Siegel, D., Soumitri, S., Dasgupta, D, Glaser, P., Welker, J. M. (2013) Stable isotopes of peat pore water show seasonal recharge vertically penetrates both circumboreal bogs and fens. Hydrological Processes 10.1002/hyp.9983. 8. Cable, J., Olge, K., Bolton, D., Bentley, L., Romonvsky, V., Iwata, H., Harazona, Y., and Welker, J. M. (2013) Permafrost thaw effects boreal deciduous plant through increased soil water, increased thaw and warmer temperatures. Ecohydrology DOI: 10.1002/eco.1423. 9. Leffler, J. and Welker, J. M. (2013) Long-term increases in snow elevate leaf N and photosynthesis in Salix arctica: response to a snow fence experiment in NW Greenland. Environmental Research Letters 8, 025023 10. Schaeffer, S. M., Sharp, E., Schimel, J. and Welker, J. M. (2013) Soil N processes in the High Arctic: Responses to a long-term multi-level warming and added summer water experiment. Global Change Biology DOI: 10.1111/gcb.12318. 11. Sharp, E., Sullivan, P., Steltzer, H., Csank, A., and Welker, J. M. (2013) Complex carbon cycling responses to multi-level warming and supplemental summer rain in a High Arctic ecosystem. Global Change Biology DOI: 10.1111/gcb.12149. 12. von Biela, V. R., Zimmerman, C. E., Cohn, B. R., and Welker, J. M. (2013) Evidence of multiple carbon sources and prey communities in young-of-the-year Arctic cisco (Coregonus autumnalis) using 13C, 15N and diet analyses. Polar Biology 36: 137-146. 13. Tape, K. D., Hallinger, M., Welker, J. M., and Ruess, R. W. (2012) Landscape heterogeneity of shrub expansion in Arctic Alaska. Ecosystems doi:10.1007/s10021-012-9540-4. 14. Elmendorf, S., Henry, G. H. R., Hollister, R. D., Welker, J. M. et al. (2012a) Plot-scale evidence of tundra vegetation change to recent summer climate warming. Nature Climate Change. 2: 453-457. doi:10.1038/nclimate1465. 15. Elmendorf, S., Henry, G. H. R., Hollister, R. D., Welker, J. M., et al. (2012b) Global assessment of experimental climate warming on tundra vegetation: Heterogeneity over space and time. Ecology Letters. 15(2): 164-175. doi: 10.1111/j.1461-0248.2011.01716.x. 16. Welker, J. M. (2012) ENSO effects on the isotopic (δ18O, δ2H and d-excess) of precipitation across the US using a long-term network (USNIP). Rapid Communication in Mass Spectrometery 17: 1655-1660. 17. Van Wilgenburg, S. L., Hobson, K. A., Brewster, K. R., and Welker, J. M. (2012) Assessing dispersal in threatened migratory birds using stable hydrogen isotope (D) analysis of feathers. Endangered Species Research. 16: 17-29. doi:10.3354/esr00383. 18. Kikuchi, C., Ferre, T. P., and Welker, J. M. (2012) Groundwater-surface water interactions in an Alaskan freshwater stream. Journal of Hydrology. doi:10.1016/j.jhydrol.2012.04.002. 19. Werner, C., Welker, J. M., et al. (2012) Linking carbon and water cycles using stable isotopes across scales: Progress and challenges. Biogeosciences Discussions. 8: 2659-2719. (Online Journal). 6 20. Cahoon, S. M. P., Sullivan, P. F., Post, E., and Welker, J. M. (2012) Large herbivores limit CO2 uptake and suppress carbon cycle responses to warming in West Greenland. Global Change Biology. 18(2): 469479. doi:10.1111/j.1365-2486.2011.02528.x. 21. Liu, Z., Bowen, G., Welker, J. M., and Yoshimura, K. (2012) Winter precipitation isotope gradients (δ18O) of the contiguous USA and their relationship to the Pacific/North American (PNA) pattern. 2012. Climate Dynamics 10.1007/s00382-012-1548-0. 22. Cahoon, S., Sullivan, P. F., Shaver, G. R., Welker, J. M., and Post, E. (2012) Interactions among shrub cover and microclimate may determine future carbon budgets. Ecology Letters 15: 1415-1422 doi: 10.1111/j.1461-0248.2012.01865.x. 23. Timling, L., Dahlbert, A., Walker, D. A., Gardes, M., Charcosset, J. Y., Welker, J. M. and Taylor, D. L. (2012) Distrbution and drivers of ecotomychorrhizal fungal communiteis across the North American Arctic. Ecosphere 3: 1-25. Submitted 24. Rogers, M. C., O’Dell, M. B., Peacock, E. L., Simac, K., and Welker, J. M. Isotopic (13C, 15N) characteristics of Beaufort Sea polar bear tissues and diet: food web ecology of a top predator. Polar Biology. 25. Wolf, N., Ely, C., Rogers, M. and Welker, J. M. Tundra swan migration ecology: Use of stable isotopes (15N & D), satellite trackers and N American isoscapes. Canadian J of Zoology. 26. Lupascu, M., Welker, J. M., Xu, X. and Czimczik, C. I. Winter snow depth affects the sources and ages of CO2 emissions from a NW Greenland High Arctic polar semi-desert. JGR Biogeoscience. 27. Lupascu, M., Welker, J.M., Seibt, U., Xu, X., Velicogna, I., Lindsey, D. S. and Czimczik, C. I. The amount and timing of precipitation control the magnitude, seasonality and sources (14C) of ecosystem respiration in a polar semi-desert, NW Greenland. JGR Biogeoscience. 28. Anderson-Smith, A., Sullivan, P. F. and Welker, J. M. Increases in tundra shrub density is manifested in vegetation spectral properties and corresponds to greater CO2 sequestration. Global Change Biology. 29. Street, J. H., Anderson, R. S., Sessions, A. L., Welker, J. M., and Paytan, A. Late Holocene changes in North Pacific storm tracks and precipitation moisture sources to the Sierra Nevada, California. Quarternary Review 30. Liu, Z., Yoshimura, K., Bowen, G. J., Buenning, N. H., Risi, C., Yuan, F., and Welker, J. M. PNA-like climate teleconnections in continental North America during the mid- and late Holocene epoch. Nature Communications. 31. Pattison, R., R., Jorgenson, J. C., Raynolds, M. K., and Welker, J. M. Trends in NDVI and tundra community composition for in the Arctic National Wildlife Refuge, Alaska from 1988 to 2009. Ecosystems. 7 32. Csank, A.,Miller, A., Sherriff, R. L., Berg, E. E., Welker, J. M. Environmental sensitivity of trees killed during insect outbreaks in south-central Alaska revealed by tree-ring isotope (δ13C & δ18O) chronologies. Tree Physiology. Manuscripts under Construction 1. Akers, P. D., Brook, G. A., Welker, J. M. High-resolution, late Quaternary (0-150 ka BP) climate and vegetation record for the American Midwest: Isotope and pollen evidence from stalagmites and flowstones in three caves. 2. Anderson, S., Evans, J., and Welker, J. M. Precipitation isotopic analyses (Δ17O & δ15N, NO3-) and atmospheric modeling advance the understanding of atmospheric nitrogen deposition in the Pacific Northwest. 3. Baltensperger, A. P., Hüttmann, F., and Welker, J. M. A comparison of the trophic niche space of Northern red-backed voles (Myodes rutilus) using stable isotopes (δ15N, δ13C, δD, δ18O) along an Alaskan megatransect. 4. Burnham, J., Burnham, K., Causey, D., Bargmann, N., and Welker, J. M. Mercury in High Arctic sea and land birds: Using stable isotopes (δ13C, δ15N and δ34S) to understand feeding ecology and contaminant exposure. 5. Blanc-Betes, E., Gonzalez-Meler, M. A., Sturchio, N. C., Guilderson, T. A., Poghosyan, A., and Welker, J. M. Methane and CO2 isotope measurements delineate the processes affecting the C emissions in response to long term increases and decreases in snow, N Alaska 6. Blanc-Betes, E., Gonzalez-Meler, M. A., Sturchio, N. C., Guilderson, T. A., Poghosyan, A., and Welker, J. M. Long-term winter snow depth changes alter the magnitudes and patterns of CO2 exchange in moist acidic tundra, transitions in NEE over 20 years. 7. Cahoon, S., Sullivan, P. F., Post, E., and Welker, J. M. Intra and interannal water sources (δ18O and δ2H) used by grass and shrubs affect leaf-level photosynthetic magnitudes and patterns in western Greenland. 8. Carney, B., Tessler, D., Welker, J. M., Coletti, H. and Causey, D. 15 N and 13C as proxy for diet of black oystercatchers (Haematopus bachmani) in the northern Gulf of Alaska. 9. Cherry, J. E., Cable, J. M., Cable, W., Worden, J., Crosson, E., Van Pelt, A., and Welker, J. M. Water vapor isotope measurements over the Alaskan Boreal Forest with aircraft and satellite remote sensing. 10. Csank, A. Z., Miller, A., and Welker, J. M. Tree-ring isotopes reveal environmental perturbations 10 year prior to tree death in Alaska. 11. Csank, A. Z., Birks, J., Edwards, T., Gibson, J. and Welker, J. M. Phases of the Northern Annual Mode have differential effects on the spatial patterns of precipitation isotope geochemistry across all of North America: Integrating AKWIN, CANIP and USNIP. 8 12. Csank, A. Z., Czimczik, C. I., Xu, X., and Welker, J. M. Seasonal shifts in the source and age of riverine DOC and POC in NW Greenland. 13. Delavau, C., Sun, C., Stadnyk, T., McDonald, J., Birks, J., Welker, J. M. Time series modeling of Precipitation isotopes (δ180) across Canada and the northern United States. 14. Delavau, C., Sun, C., McDonald, J., Birks, J., Welker, J. M., and Stadnyk, T. Use of a stochastic modeling approach with precipitation isotopes to understand the Fort Simpson Basin, NWT, Canada water cycle. 15. Ebbs, L., Sullivan, P. F., and Welker, J. M. Long-term added snow result in divergent ecophysiological responses of evergreen and deciduous shrubs: A stable isotope (δ13C, δ15N and δ18O) study. 16. Flowers, C, Gonzalez-Meler, M. A., Trumbore, S. and Welker, J. M. Warmer temperatures and deeper snow alter the sources of C used in annual stem and leaf growth: Evidence from 14C analyses in N Alaska. 17. Gonzalez-Meler, M. A. Blanc-Betes, E., Sturchio, N. C., Guilderson, T. A., Poghosyan, A., and Welker, J. M. Radioisotopes (137Cs, 40K, 210Pb) indicate that cryoturbation processes in Alaskan tussock tundra are accelerated under deeper winter snow: Results from short and long-term winter snow depth experiments. 18. Herman, R. L., Cherry, J., Cable, J., Welker, J. M., Noone, D., Sodemann, H. and Worden, J. Aircraft Validation of Tropospheric Emission Spectrometer Retrievals of HDO and H2O in Arctic and Boreal landscapes. 19. Klein, E., Nolan, M., Cable, J., Cherry, J. and J M Welker. Continuous water vapor isotopic measurements indicate differential Arctic storm tracks: Application to McCall Glacier ice core climate reconstructions in Northern Alaska. 20. Klein, E., Leffler, J., Cable, J., Cherry, J., and Welker, J. M. Sea-ice destroying cyclone leaves a anomalous water vapor isotope signal along the N Slope of Alaska and in N Canada. Leffler, J. A., & Welker, J. M. NW Greenland fine-scale summer CO2 exchange from a High Arctic tundra. 21. Levin, N. and Welker, J. M. Variations in the 17O/16O and 18O/16O of meteoric waters from the conterminous USA. 22. Maseyk, K. S., Welker, J. M., Lett, C., Czimczik, C. I., Lupascu, M., and Seibt, U. B. Hydrology modifies ecosystem responses to warming through interactions between soil, leaf and canopy processes in a high Arctic ecosystem. 23. Miller, O. L., Filley, T. R., Gonzalez-Meler, M. Xu, D. and Welker, J. M. Long-term deeper snow causes changes in litter quality, soil C and N storage in moist acidic tundra in Northern Alaska 24. O’Dell, M. B., Wolf, N., Spalinger, D. E., Collins, W. and Welker, J. M. Historical caribou diets using archived serum samples and stable isotopes (δ13C, δ15N). 9 25. Schock, W., Causey, D., Ely, C., Fisher, J., Cable, J., and Welker, J. M. White fronted geese migratory ecology: Using feather stable isotope (δ13C, δ15N, δ18O, and δD) values to delineate nesting locations in Alaska. 26. Siess, K., Wolf, N., Welker, J. M., Rea, L., and Cornick, L. Variability in the δ13C and δ15N values of Stellar sea lion pup vibrissae: Implications for diet and foraging studies. 27. Stanek, A., Mangipane, B., Hildebrand, G., and Welker, J. M. Stable isotope (δ13C, δ15N) analysis and satellite telemetry depict the complexity of gray wolf (Canis lupus) diets in Southwest Alaska. 28. Terzer, S., Wassenaar, L., Rogers, M., and Welker, J. M. US Precipitation Isoscapes (δ18O and δ2H): Improved predictions using regionalized climatic regression models. 29. Trube, S., Cole, J. and Welker, J. M. Precipitation isotopes (δ18O and δ2H) in the Desert SW USA: The role of southern moonsoons in controlling temporal variability. 30. Vander Zanden, H, Hobson, K. A.,Wassenaar, L. I., Wunder, M. B., Welker, J. M. and Bowen, G. Incorporating climate variability into precipitation isoscapes for interpreting animal migration. 31. Webster, S., Harris, B., Wolf, N., and Welker, J. M. Size-at-age and diet composition of Pacific halibut (Hippoglossus stenolepis) in Cook Inlet, Alaska. 32. Yang, L., Rogers, M., and Welker, J. M. Wintering Monarch butterfly population identity in S California: Using precipitation and wing δ2H values across the western U. S. 33. Welker, J. M., Klein, E., Leffler, J., Cherry, J., and J Cable. Coupling of continuous in situ ecosystem water vapor, precipitation, plant and soil water isotope (δ2H, δ18O and d-excess) measurements in Arctic Alaska to understand a changing water cycle Publications Organized by Theme Arctic Ecosystems & Physiological Ecology 1. Pattison, R., and Welker, J. M. (2013) Differential ecophysiological response of deciduous shrubs and a graminoid to long-term snow reductions and additions in moist acidic tundra, Northern Alaska. Oecologia (resubmitted). 2. Leffler, J. and Welker, J. M. (2013) Increases in snow elevate Salix leaf N, leaf-level photosynthesis but without affecting plant water sources: A long-term experiment in NW Greenland. Environmental Research Letters (in press). 3. Lupascu, M., Xu, X., Lett, C., Maseyk, K.S., Lindsey, D.S., Thomas, J.S., Welker, J.M., and Czimczik, C. I. (2013). Rainfall regime controls permafrost contributions to High Arctic CO2 emissions. Nature Climate Change (submitted). 10 4. Rogers, M. C., O’Dell, M. B., Peacock, E. L., Simac, K., and Welker, J. M. (2013) Isotopic (13C, 15N) characteristics of Beaufort Sea polar bear tissues and diet: food web ecology of a top predator. Polar Biology (submitted). 5. Oberbauer, S. F., Elmendorf, S. C., Troxler, T., Hollister, R. D., Welker, J. M., et al. (2013) Phenological responses of tundra plants to background climate variation tested using the International Tundra Experiment (ITEX). Proceedings of the Royal Academy (in press). 6. Sharp, E., Sullivan, P., Steltzer, H., Csank, A., and Welker, J. M. (2013) Complex carbon cycling responses to multi-level warming and supplemental summer rain in a High Arctic ecosystem. Global Change Biology DOI: 10.1111/gcb.12149. 7. Timling, I., Dahlberg, A., Walker, D. A., Gardens, M., Charcosset, J. Y., Welker, J. M. and Taylor, D. L. (2012) Distribution and drivers of ectomycorrhizal fungal communities along a bioclimate gradient in the North American Arctic. Ecoscience 3:1-25. 8. Cahoon, S., Sullivan, P. F., Shaver, G. R., Welker, J. M., and Post, E. (2012) Interactions among shrub cover and microclimate may determine future carbon budgets. Ecology Letters 15: 1415-1422 doi: 10.1111/j.1461-0248.2012.01865.x. 9. Tape, K. D., Hallinger, M., Welker, J. M., and Ruess, R. W. (2012) Landscape heterogeneity of shrub expansion in Arctic Alaska. Ecosystems doi:10.1007/s10021-012-9540-4. 10. Elmendorf, S., Henry, G. H. R., Hollister, R. D., Welker, J. M. et al. (2012a) Plot-scale evidence of tundra vegetation change to recent summer climate warming. Nature Climate Change. 2: 453-457. doi:10.1038/nclimate1465. 11. Elmendorf, S., Henry, G. H. R., Hollister, R. D., Welker, J. M., et al. (2012b) Global assessment of experimental climate warming on tundra vegetation: Heterogeneity over space and time. Ecology Letters. 15(2): 164-175. doi: 10.1111/j.1461-0248.2011.01716.x. 12. Meyers-Smith, I., Forbes, B., Wilmking, W., Welker, J. M. et al. (2011) Shrub expansion in tundra ecosystems: dynamics, impacts and research priorities. Environmental Research Letters 6. doi:10.1088/1748-9326/6/4/045509. 13. Rogers, M. C., Sullivan, P. F., and Welker, J. M. (2011) Evidence of nonlinearity in the response of net ecosystem CO2 exchange to increasing levels of winter snow depth in the High Arctic of Northwest Greenland. Arctic, Antarctic and Alpine Research. 43: 95-106. 14. Tape, K. D., Verbyla, D. and Welker, J. M. (2011) Erosion decline in Arctic Alaska uplands since 1980: The influence of shrubs, runoff, and permafrost. JGR Biogeosciences. 116: G04024. doi:10.1029/2011JG001795. 15. Nowinski, N., Taneva, L., Trumbore, S., and Welker, J. M. (2010) Decomposition of old organic matter as a result of deeper active layers in a snow depth manipulation experiment. Oecologia. 163(3): 785-792. doi:10.1007/s00442-009-1556-x. 11 16. Czimczik, C. I., and Welker, J. M. (2010) Radiocarbon content of CO2 respired from High Arctic tundra in Northwest Greenland. Arctic, Antarctic and Alpine Research. 42(3): 342-350. doi:10.1657/1938-4246-42.3.342. 17. Sullivan, P. F., Arens, S., Sveinbjörnsson, B., and Welker, J. M. (2010) Modeling the seasonality of belowground respiration along an elevational gradient in the western Chugach Mountains, Alaska. Biogeochemistry. 101(1-3): 61-75. doi:10.1007/s10533-010-9471-0. 18. Post, E., Forchhammer, M. C., Welker, J. M., et al. (2009) Ecological dynamics across the Arctic associated with recent climate change. Science. 325(5946): 1355-1358. doi:10.1126/science.1173113. 19. Sullivan P. F., Welker, J. M., Arens, S. J. T., and Sveinbjörnsson, B. (2008) Continuous estimates of CO2 efflux from arctic and boreal soils during the snow-covered season in Alaska. JGR Biogeosciences. 113: G04009. doi:10.1029/2008JG000715. 20. Walker, D. A., Epstein, H. E., and Welker, J. M. (2008) Introduction to the special section: Biocomplexity in Arctic terrestrial environments. Journal of Geophysical Research. G03S14. 21. Sullivan, P. F, Welker, J. M., Steltzer, H., Sletten, R., Hagedorn, B., Arens, S. J. T., and Horwath, J. L. (2008) Energy and water additions give rise to simple responses in plant canopy and soil microclimates of a high arctic ecosystem. Journal of Geophysical Research. G03S08. 22. Arens, S. J. T., Sullivan, P. F., and Welker, J. M. (2008) Nonlinear responses to nitrogen and strong interactions with nitrogen and phosphorus additions drastically alter the structure and function of a high arctic ecosystem. Journal of Geophysical Research. G03S09. 23. Steltzer, H., Hufbauer, R. A, Welker, J. M., Casalis, M., Sullivan, P. F., and Chimner, R. A. (2008) Frequent sexual reproduction and high intraspecific variation in Salix arctica: Implications for a terrestrial feedback to climate change in the High Arctic. Journal of Geophysical Research. G03S10. 24. Sullivan P. F., Arens, S.J.T., Chimner, R. A., and Welker, J.M. (2008) Temperature and microtopography interact to control carbon cycling in a high arctic fen. Ecosystems. 11: 61-76. 25. Oberbauer, S., Tweedie, C., Welker, J. M., et al. (2007) Tundra CO2 fluxes in response to experimental warming across latitudinal and moisture gradients. Ecological Monographs. 77: 221-238. 26. Sullivan, P.F., and Welker, J. M. (2007) Variation in leaf physiology of Salix arctica within and across ecosystems in the High Arctic: Test of a dual isotope conceptual model. Oecologia. 151: 372386. 27. Cornelissen, J. H. C., Van Bodegom, P. M., Aerts, R., Callaghan, T. V., Welker, J. M., et al. (2007) Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes. Ecology Letters. 10(7): 619-627. doi:10.1111/j.1461-0248.2007.01051.x. 28. Sullivan, P.F., Sommerkorn, M., Rueth, H., Nadelhoffer, K., Shaver, G. and Welker, J. M. (2007) Climate and species affect fine root production with long-term fertilization in acidic tussock tundra near Toolik Lake, Alaska. Oecologia. 153: 643-652. 12 29. Steltzer, H., and Welker, J. M. (2006) Modeling the effect of photosynthetic vegetation properties on the NDVI-LAI relationship. Ecology. 87: 2765-2772. 30. Schimel, J., Fahnestock, J., Michaelson, G., Milkan, C., Ping, C, Romanovsky, V., and Welker, J. M. (2006) Cold-season production of CO2 in Arctic soils: Can laboratory and field estimates be reconciled through a simple modeling approach? Arctic, Antarctic and Alpine Research. 33: 120-125. 31. Sturm, M., Schimel, J., Michaelson, G., Welker, J. M., Oberbauer, S. F., Liston, G., Fahnestock, J. T., and Romanovsky, V. E. (2005) Winter biological processes could help convert arctic tundra to shrubland. Bioscience. 55, 17-26. 32. Chapin, F.S., Sturm, M., Serreze, M. C., McFadden, J. P., Key, J. R., Lloyd, A. H., McGuire, A. D., Rupp, T. S., Lynch, A. H., Schimel, J. P., Beringer, J., Chapman, W. L., Epstein, H. E., Euskirchen, E. S., Hinzman, L. D., Jia, G., Ping, C-L., Tape, K. D., Thompson, C. D. C., Walker, D. A., and Welker, J. M. (2005) Role of land-surface changes in Arctic summer warming. Science. 310(5748): 657-660. doi:10.1126/science.1117368. 33. Hinzman, L., Oechel, W., Sturm, M., Welker, J. M., Nelson, F., Romanovsky, V., Chapin, F. S.., et al. (2005) Evidence for recent changes in the Arctic terrestrial landscape. Climatic Change. 72: 251-298. 34. Sullivan, P. F., and Welker, J. M. (2005) Warming chambers stimulate early season growth of an Arctic sedge: Results of a minirhizotron field study. Oecologia. 142: 616-626. 35. Welker, J. M., Fahnestock, J. T., Sullivan, P. F., and Chimner, R. A. (2005) Leaf mineral nutrition of arctic plants in response to long-term warming and deeper snow in N. Alaska. Oikos. 109: 167-177. 36. Welker, J. M., Rayback, S., and Henry, G. (2005) Arctic and North Atlantic Oscillation phase changes are recorded in the isotopes (18O & 13C) of Cassiope tetragona plants. Global Change Biology. 11: 1-6. 37. Welker, J. M., Fahnestock, J. T., Henry, G. H. R., O’Dea, K. W., and Chimner, R. A. (2004) CO2 exchange in three Canadian High Arctic ecosystems: Response to long-term experimental warming. Global Change Biology. 10(12): 1981-1995. doi:10.1111/j.1365-2486.2004.00857.x. 38. Schimel, J. S., Bilbrough, C. B., and Welker, J. M. (2004) The effect of changing snow cover on yearround soil nitrogen dynamics in Arctic tundra ecosystems. Soil Biology and Biochemistry. 36: 217227. 39. Welker, J. M., Jonsdottir, I., and Fahnestock, J. T. (2003) Isotopic (13C and 15N) characteristics of Carex plants and populations along the Eurasian Coastal Arctic. Polar Biology. 27: 29-37. 40. Welker, J. M., Fahnestock, J. T., Henry, G. H. R., O’Dea, K. W., and Piper, R. E. (2002) Microbial activity discovered in previously ice-entombed Arctic ecosystems. EOS Transactions American Geophysical Union. 83(26): 281-284. doi:10.1029/2002EO000198. 41. Welker, J. M., Fahnestock, J. T., and Jones, M. H. (2000) Annual CO2 flux from dry and moist arctic tundra: Field responses to increases in summer temperature and winter snow depth. Climatic Change. 44: 139-150. 13 42. Fahnestock, J. T., Povirk, K. A., and Welker, J. M. (2000) Abiotic and biotic effects of increased litter accumulation in arctic tundra. Ecography. 23: 623-631. 43. Bilbrough, C. J., Welker, J. M., and Bowman, W. D (2000) Early-spring N uptake by snow covered plants: A comparison of arctic and alpine plant function under snowpack. Arctic, Antarctic and Alpine Research. 32: 404-411. 44. Jones, M. H., Fahnestock, J. T., Stahl, P. D., and Welker, J. M. (2000) A note on summer CO2 flux, soil organic matter and soil microbial biomass from different high arctic ecosystem types in northwestern Greenland. Arctic, Antarctic and Alpine Research. 32: 104-106. 45. Fahnestock, J. T., Jones, M. H., Brooks, P. D., and Welker, J. M. (1999) Significant CO2 emissions from tundra soils during winter: Implications for annual carbon budgets of arctic communities. Global Biogeochemical Cycles. 13: 775-779. 46. Jones, M. H., Fahnestock, J. T., and Welker, J. M. (1999) Early and late winter CO2 efflux from Arctic tundra in the Kuparuk River watershed, Alaska. Arctic, Antarctic and Alpine Research. 31: 187-190. 47. Arft, A. M., Walker, M. D., Gurevitch, J., Welker J. M., et al. (1999) Response patterns of tundra plant species to experimental warming: Meta-analysis of the International Tundra Experiment. Ecological Monographs. 69(4): 491-511. 48. Welker, J. M., Brown, K. B., and Fahnestock, J. T. (1999) CO2 flux in arctic and alpine dry tundra: Comparative field responses under ambient and experimentally warmed conditions. Arctic, Antarctic and Alpine Research. 31: 308-313. 49. Walker, M. D., Walker, D. A., Welker, J. M., Arft, A. M., Bardsley, T., Brooks, P. D., Fahnestock, J. T., Jones, M. H., Losleben, M., Parsons, A. N., Seastedt, T. R., and Turner, P. L. (1999) Long-term experimental manipulation of winter snow regime and summer temperature in arctic and alpine tundra. Hydrological Processes. 13: 2315-2330. 50. Jones, M. H., Fahnestock, J. T., Walker, D. A., Walker, M. D., and Welker, J. M. (1998) Carbon dioxide fluxes in moist and dry arctic tundra during the snow-free season: responses to increases in summer temperature and winter snow accumulation. Arctic and Alpine Research. 30: 373-380. 51. Fahnestock, J. T., Jones, M. H., Brooks, P. D., Walker, D. A., and Welker, J. M. (1998) Winter and early spring CO2 flux from tundra communities of northern Alaska. Journal of Geophysical Research. 102 (D22): 29925-29931. 52. Welker, J. M., Molau, U., Parsons, A. N., Robinson, C., and Wookey, P. A. (1997) Response of Dryas octopetala to ITEX manipulations: A synthesis with circumpolar comparisons. Global Change Biology. 3 (Suppl. 1): 61-73. 53. Walsh, N., McCabe, T., Parsons, A. N., and Welker, J. M. (1997) Experimental manipulations of snowdepth: Effects on mineral nutrition content of caribou forage. Global Change Biology. 3 (Suppl. 1): 158-164. 14 54. Robinson, C. H., Wookey, P. A., Parson, A. N., Welker, J. M., Callaghan, T. V., Press, M. C., and Lee, J. A. (1995) The response of plant litter decomposition, soil nutrient release and nitrogen mineralization to simulate climate change in a high arctic polar semi-desert and a subarctic dwarf shrub heath. Oikos. 74: 503-512. 55. Wookey, P. A., Robinson, C. H., Parsons, A. N., Welker, J. M., Press, M., Callaghan, T. V., and Lee, J. A. (1995) Environmental constraints on the growth and performance of Dryas octopetala ssp. at a high arctic polar semi-desert. Oecologia. 102: 478-489. 56. Parsons, A.N., Wookey, P.A., Welker, J.M., Press, M.C., Callaghan T.V., and Lee, J.A. (1995) Growth of Calamagrostis lapponica in response to simulated environmental change in the Subarctic. Oikos. 72: 61-66. 57. Rieley, G., Welker, J. M., Eglinton, G., and Callaghan, T. V. (1995) Epicuticular waxes of arctic plants: Compositional differences in relation to winter snow cover. Phytochemistry. 38: 45-52. 58. Parsons, A.N., Welker, J. M., Wookey, P. A., Press, M.C. Callaghan, T. V., and Lee, J. A. (1994) Growth responses of four dwarf shrubs to simulated climate change. Journal of Ecology. 82: 307-318. 59. Wookey, P. A., Welker, J. M., Parsons, A. N., Press, M. C.,Callaghan, T. V., and Lee, J. A. (1994) Differential growth allocation and photosynthetic responses of Polygonum viviparum L. to simulated environmental change at a high arctic polar semi-desert. Oikos. 70: 131-139. 60. Wookey, P. A., Parsons, A. N., Welker, J. M., Potter, J. C., Callaghan, T. V., Lee, J. A., and Press, M. C. (1993) Comparative responses of subarctic and high arctic ecosystems to simulated climate change. Oikos. 67: 490-502. 61. Welker, J. M., Wookey, P., Parsons, A. P., Callaghan, T. V., Press, M. C., and Lee, J. A. (1993) Leaf carbon isotope discrimination and demographic responses of Dryas octopetala to water and temperature manipulations in a high arctic polar semi-desert, Svalbard. Oecologia. 95:463-470. Isotope Biogeochemistry 62. 63. Winnick, M., Welker, J. M., and Chamberlain, P. (2013) Stable Isotope evidence of El Nino like circulation in Pliocene western United States. Climate of the Past 9: 903-912. von Biela, V. R., Zimmerman, C. E., Cohn, B. R., and Welker, J. M. (2013) Evidence of multiple carbon sources and prey communities in young-of-the-year Arctic cisco (Coregonus autumnalis) using 13C, 15N and diet analyses. Polar Biology 36: 137-146. 64. Wolf, N., Ely, C., Rogers, M. and Welker, J. M. (2013) Tundra swan migration ecology: Use of stable isotopes (15N & D), satellite trackers and N American isoscapes. Ecology (submitted) 65. Welker, J. M. (2012) ENSO effects on the isotopic (δ18O, δ2H and d-excess) of precipitation across the US using a long-term network (USNIP). Rapid Communication in Mass Spectrometery 17: 16551660. 15 66. Liu, Z., Bowen, G., Welker, J. M., and Yoshimura, K. (2012) Winter precipitation isotope gradients (δ18O) of the contiguous USA and their relationship to the Pacific/North American (PNA) pattern. 2012. Climate Dynamics 10.1007/s00382-012-1548-0. 67. Liu, Z., Bowen, G., Yoshimura, K., and Welker, J. M. (2012) GCM-based analysis of Pacific/North American (PNA) teleconnection controls on precipitation isotopes across the contiguous USA. J of Planetary and Earth Sciences (Submitted). 68. Van Wilgenburg, S. L., Hobson, K. A., Brewster, K. R., and Welker, J. M. (2012) Assessing dispersal in threatened migratory birds using stable hydrogen isotope (D) analysis of feathers. Endangered Species Research. 16: 17-29. doi:10.3354/esr00383. 69. Kikuchi, C., Ferre, T. P., and Welker, J. M. (2012) Groundwater-surface water interactions in an Alaskan freshwater stream. Journal of Hydrology. doi:10.1016/j.jhydrol.2012.04.002. 70. Werner, C., Welker, J. M., et al. (2012) Linking carbon and water cycles using stable isotopes across scales: Progress and challenges. Biogeosciences Discussions. 8: 2659-2719. (Online Journal). 71. Miles, G. R., Mitchell, M, J., Mayer, B., Likens, G., Welker, J. M. (2011) Long-term analysis of Hubbard Brook stable oxygen isotope ratios of stream water and precipitation sulfate. Biogeochemistry doi:10.1007/s10533-011-9670-3. 72. Stevenson, B. A., Kelly, E., McDonald, E., Busacca, A., and Welker, J. M. (2010) Oxygen isotope ratios in Holocene carbonates across a climatic gradient, eastern Washington State, USA: Evidence for seasonal effects on pedogenic mineral isotopic composition. The Holocene. 20(4): 575-583. doi:10.1177/0959683609356588. 73. Vachon, R. W., Welker, J. M., White, J. W. C., and Vaughn, B. H. (2010) Monthly precipitation isoscapes (δ18O) of the United States: Connections with surface temperatures, moisture source conditions, and air mass trajectories. JGR Atmospheres. 115: D21126. doi:10.1029/2010JD014105. 74. Vachon, R. W., Welker, J. M., White, J. W. C., and Vaughn, B. H. (2010) Moisture source temperatures and precipitation 18O-temperature relationships across the US. Water Resources Research. 46: W07523. doi:10.1029/2009WR008558. 75. Liu, Z., Bowen, G., and Welker, J. M. (2010) Atmospheric circulation is reflected in precipitation isotope gradients over the conterminous United States. JGR Atmospheres. 115: D22120. doi:10.1029/2010JD014175. 76. Craine, J., Elmore, A., Aidar, M., Amundson, R., Bustamante, M., Coetsee, C., Dawson, T., Hawkins, H., Hobbie, E., Kahmen, A., Koba, K., Mack, M., Makarov, M., McLauchlan, K., Michelsen, A., Nardoto, G., Pardo, L., Peñuelas, J., Reich, P., Schuur, E., Stock, W., Tateno, R., Templer, P., Virginia, R., Welker, J.M., and Wright, I. (2009) Global patterns of foliar nitrogen isotopes and their relationships with nitrogen availability. New Phytologist. 183(4): 980-992. doi:10.1111/j.14698137.2009.02917.x 16 77. Sjostrom, D. and Welker, J. M. (2009) The influence of air mass source on the seasonal isotopic composition of precipitation, eastern USA. Journal of Geochemical Exploration-Isoscapes Special Issue. 102(3):103-112. doi:10.1016/j.gexplo.2009.03.001. 78. Still, C. J., Riley, W.J., Biraud, S.C., Noone, D.C., Buenning, N.H., Randerson J.T., Torn, M.S., Welker, J. M., White, J.W.C., Vachon, R., Farquhar, G.D., and Berry, J.A. (2009) The influence of clouds and diffuse radiation on ecosystem-atmosphere CO2 and CO18O exchanges. Biogeosciences. 7: 210-217. doi:10.1029/2007JG000675. 79. Vachon, R., White, J. W., Welker, J. M., Gutman, S. (2007) Seasonality of precipitation affects the annual isotopic (18O) values across the United States: A sensitivity study. Geophysical Research Letters. 34 L21707. 80. McGuire, K .J., McDonnell, J. J., Weiler, M., McGlynn, B. L., Kendall, C., Welker, J. M., and Seibert, J. (2005) The role of topography on catchment-scale water residence time. Water Resources Research. 41: 1-14. 81. Kohn, M. J. and Welker, J. M. (2005) On the temperature correlation of 18O in modern precipitation. Earth and Planetary Science Letters. 231(1-2): 87-96. doi:10.1016/j.epsl.2004.12.004. 82. Dutton, A. L., Wilkinson, B. H., Bowen, G., Welker, J. M., and Lohmann, K. C. (2005) Comparison of river water and precipitation 18O across the 48 contiguous United States. Hydrological Processes. 19: 3551-3572. 83. Bowling, D. R., McDowell, N. G., Welker, J. M., Bond, B. J., Law, B. E., and Ehleringer, J. R. (2003) Oxygen isotope content of CO2 in nocturnal ecosystem respiration: 1. Observations in forests along a precipitation transect in Oregon, USA. Global Biogeochemical Cycles. 17(4): 1120. 84. Bowling, D. R., McDowell, N. G., Welker, J. M., Bond, B. J., Law, B. E., and Ehleringer, J. R. (2003) Oxygen isotope content of CO2 in nocturnal ecosystem respiration: 2. Short-term dynamics of foliar and soil component fluxes in an old-growth ponderosa pine forest. Global Biogeochemical Cycles. 17(4): 1124. 85. Larson, R. M., Todd, L. C., Kelly, E. F., and Welker, J. M. (2001) Carbon isotopic analysis of bison dentition. Great Plains Research. 11: 25-64. 86. Welker, J. M. (2000) Isotopic (18O) characteristics of weekly precipitation collected across the United States: An initial analysis with application to water source studies. Hydrological Processes. 14: 1449-1464. 87. Harvey, F. E., and Welker, J. M. (2000) Stable isotopic composition of precipitation in the semi-arid north-central portion of the US Great Plains. Journal of Hydrology. 238: 90-109. 88. Dodd, M. B., Lauenroth, W. K., and Welker, J. M. (1998) Differential water resource use by herbaceous and woody plants in a shortgrass steppe community. Oecologia. 117: 504-512. 17 89. Welker, J. M., Heaton, T. H. E., Sprio, B. and Callaghan, T. V. (1995) Indirect effects of winter climate on the 13C and the D characteristics of annual growth segments in the long-lived arctic plant Cassiope tetragona: A preliminary analysis. Palaeoclimate Research. 15: 105-120. 86. Welker, J. M., Gordon, D. R., and Rice, K. J. (1991) Capture and allocation of nitrogen by Quercus douglasii seedlings in competition with annual and perennial grasses. Oecologia. 87:459-466. 87. Welker, J. M., Rykiel, E. J., Briske, D. D. and Goeschl, J. D. (1985) Carbon import among vegetative tillers within two bunchgrasses: Assessment with carbon-11 labeling. Oecologia. 67:209-212. Plant-Animal Interactions 88. Cahoon, S. M. P., Sullivan, P. F., Post, E., and Welker, J. M. (2012) Large herbivores limit CO2 uptake and suppress carbon cycle responses to warming in West Greenland. Global Change Biology. 18: 469-479. 89. Chimner, R., and Welker, J. M. (2011) Influence of grazing and precipitation on ecosystem carbon cycling in a mixedgrass prairie. Pastorialism. 1: 20-27. 90. Chimner, R., Welker, J. M., Morgan, J., LeCain, D. and Reader, J. (2010) Experimental manipulations of winter snow and summer rain influence ecoystem C cycling in a mixedgrass prairie, Wyoming, USA. Ecohydrology. 3(3): 284-297. doi:10.1002/eco.106. 91. Ingram, L. I., Stahl, P. D., Schuman, G., Buyer, J. S., Vance, G. F., Ganjegunte, G. K., Welker, J. M., and Derner, J. D. (2008) Grazing impacts on soil carbon and microbial communities in a mixed-grass ecosystem. Soil Science Society of America Journal. 72: 939-948. doi:10.2136/sssaj2007.0038. 92. Ganjegunte, G. K., Vance, G. F., Preston, C. M., Schuman, G. E., Ingram, L. I., Stahl, P. D., Welker, J. M. (2005) Soil organic carbon composition in a northern mixed-grass prairie: Effects of grazing. Soil Science Society of America Journal. 69: 1746-1756. doi:10.2136/sssaj2005.0020. 93. Welker, J. M., Fahnestock, J. T., Povirk, K. L., Bilbrough, C. J., and Piper, R. E. (2004) Alpine grassland CO2 exchange and nitrogen cycling: Grazing history effects, Medicine Bow Range, Wyoming, U.S.A. Arctic, Antarctic and Alpine Research. 36(1): 11-20. doi:10.1657/15230430(2004)036[0011:agcean]2.0.co;2 94. Alstad, K. P., Welker, J. M., Williams, S. and Trilica, M. J. (1999) Carbon and water relations of Salix monticola in response to winter browsing and changes in surface water hydrology: an isotopic study using 13C and 18O. Oecologia. 120: 375-385. 95. Welker, J. M. and Menke, J. W. (1990) The influence of simulated browsing on tissue water relations, growth and survival of Quercus douglasii (Hook and Arn.) seedlings under slow and rapid rates of soil drought. Functional Ecology. 4: 807-817. 96. Welker, J. M., Briske, D. D., and Weaver, R. W. (1987) Nitrogen-15 partitioning within a three generation tiller sequence of the bunchgrass Schizachyrium scoparium: Response to selective defoliation. Oecologia. 24: 330-334. 18 Climate Change--Ecosystem and Organismic Responses 97. Cable, J., Olge, K., Bolton, D., Bentley, L., Romonvsky, V., Iwata, H., Harazona, Y., and Welker, J. M. (2012) Permafrost thaw effects boreal deciduous plant through increased soil water, increased thaw and warmer temperatures. Ecohydrology (submitted). 98. Ives, S., Sullivan, P. F., Dail, R., Berg, E., and Welker, J. M. (2012) Seasonal and inter-annual patterns in the magnitudes of CO2 exchange along a hydrologic gradient in the Kenai Lowlands, AK: Feedback implications of wetland drying and vegetation succession. Ecohydrology doi:10.1002/ eco.274. 99. Blumenthal, D., Chimner, R., Welker, J. M., and Morgan, J. (2008) Increased snow facilitates plant invasion in mixedgrass prairie. New Phytologist. 179(2): 440-448. doi:10.1111/j.14698137.2008.02475.x. 100. Chimner, R. A., and Welker, J. M. (2005) Ecosystem respiration responses to experimental manipulations of winter and summer precipitation in a Mixedgrass Prairie, WY, USA. Biogeochemistry. 73(1): 257-270. doi:10.1007/s10533-004-1989-6. 101. Rustad, L. E., Campbell, J., Marion, G. M., Norby, R., Mitchell, M., Hartley, A., Cornelissen, J., Gurevitch, J. and GCTE-NEWS (Network of Ecosystem Warming Studies (Welker, J. M. and 15 others). (2001) A meta-analysis of the response of soil respiration, net nitrogen mineralization, and aboveground plant growth to experimental ecosystem warming. Oecologia. 126(4): 543-562. doi:10.1007/s004420000544. 102. Welker, J. M., Bowman, W., Williams, M., and Seastedt, T. (2001) Environmental change and future directions in alpine research. In: Bowman, W. and Seastedt, T. (Eds). Structure and function of an alpine ecosystem. Oxford University Press: Oxford. Pp. 304-322. 103. Werkman, B. R., Callaghan, T. V., and Welker, J. M. (1996) Responses of bracken to increased temperature and nitrogen availability. Global Change Biology. 2(1): 59-66. doi:10.1111/j.13652486.1996.tb00049.x 104. Zhang, Y., and Welker, J. M. (1996) Tibetan alpine tundra responses to simulated changes in climate: Aboveground biomass and community responses. Arctic and Alpine Research. 28(2): 203-209. 105. Welker, J. M., and Briske, D. D. (1992) Clonal biology of the temperate, caespitose, graminoid Schizachyrium scoparium: A synthesis with reference to climate change. Oikos. 63(3): 357-365. Carbon Cycling 106. Cable, J. Ogle, K., Welker, J. M. and 10 additional authors. (2011) The temperature responses of soil respiration in deserts: A seven desert synthesis. Biogeochemistry. 103(1-3): 71-90. doi:10.1007/s10533-010-9448-z. 107. Hunt, E. R., Kelly, R. D., Smith, W. K., Fahnestock, J. T., Welker, J. M. and Reiners, W. A. (2004) Estimation of carbon sequestration by combining remote sensing and net ecosystem exchange data for 19 northern mixed-grass prairie and sagebrush-steppe ecosystems. Environmental Management. 33(1): S432-S441. doi:10.1007/s00267-003-9151-0. 108. Smith, W. K., Kelly, R. D., Welker, J. M., Fahnestock, J. T., Reiners, W. A., and Hunt, E. R., Jr. (2002) Leaf-to-aircraft measurements of net CO2 exchange in a sagebrush steppe ecosystem. Journal of Geophysical Research – Atmospheres. 108(D3): 4122. doi:10.1029/2002JD002512. 109. Kelly, R. D., Hunt, E. R., Reiners, W. A., Smith, W. K., and Welker, J. M. (2002) Relationships between daytime carbon dioxide uptake and absorbed photosynthetically active radiation for three different mountain/plains ecosystems. Journal of Geophysical Research – Atmospheres. 107(D14): 4223. doi:1029/2001JD001181. 110. Hunt, E. R., Jr., Fahnestock, J. T., Kelly, R. D., Welker, J. M., Reiners, W. A., and Smith, W. K. (2002) Carbon sequestration from remotely sensed NDVI and net ecosystem exchange. In: Muttiah, R. S. (Ed.), From Laboratory Spectroscopy to Remotely Sensed Spectra of Terrestrial Ecosystems. Kluwer: Dordrecht, The Netherlands. Pp.161-174. 111. Povirk, K. A., Welker, J. M., and Vance, G. W. (2001) Carbon sequestration in arctic and alpine tundra and mountain meadow ecosystems. In: Kimble, J. M., Lal, R., and Follett, R. F. (Eds.) The Potential of U. S. Grazing Lands to Sequester Carbon and Mitigate the Greenhouse Effect. Lewis Publishers: Washington, D.C. Pp.189-228. 112. Zeller, K., Zimmerman, G., Hehn, T., Donev, E., Denny, D., Welker, J. M. (2001) Analysis of inadvertent microprocessor lag time on eddy covariance results. Journal of Applied Meteorology. 40(9): 1640-1646. Plant and Soil Water Relations 113. McGuire, K. J., McDonnell, J. J., Weiler, M., McGlynn, B. L., Kendall, C., Welker, J. M., and Seibert, J. (2005) The role of topography on catchment-scale water residence time. Water Resources Research. 41: 1-14. 114. Momen, B., Menke, J. W., Welker, J. M., Rice, K. J., and Chapin, F. S. (1994) Blue oak regeneration and seedling water relations in four sites within a California oak savanna. International Journal of Plant Sciences. 155(6): 744-749. 115. Rice, K. J., Gordon, D. R., Hardison, J. L. and Welker, J. M. (1993) Phenotypic variation in seedlings of a "keystone" tree species (Quercus douglasii): The interactive effects of acorn source and competitive environment. Oecologia. 96: 536-547. 116. Momen, B., Menke, J. W., and Welker, J. M. (1992) Tissue water relations of Quercus wislizenii seedlings in response to drought. Acta Oecologica. 13: 127-136. 117. Welker, J. M., McClelland, S., and Weaver, T. W. (1991) Soil water retention after natural and simulated rainfall on a temperate grassland. Theoretical and Applied Climatology. 44: 447-453. 118. Gordon, D. R., Welker, J. M., Menke, J. W., and Rice, K. J. (1989) Competition for soil water between blue oak seedlings and annual plants. Oecologia. 79: 533-541. 20 Fulbright Presentations (2012-2013) Carbon Cycling Processes in a High Arctic Winter-UNIS March 2013 Ancient and modern C processes in the High Arctic of Greenland and Svalbard-CENPERM, Feb. 2013 A Changing High North: Feedbacks and Consequences: US Ambassador to Norway Residence, Feb 2013 Carnivore and Herbivore Food Web Ecology in Alaska, Trondheim University, January 2013 Arctic Tundra Responses to Changes in Climate, As University, December 2012 American Geophyical Union Meeting, 6 posters, December 2012 High and Low Arctic C and N processes in a changing climates, Texas A&M University, November 2012 Tundra feedback responses to climate Changes, Trans-Atlantic Science Week, November 2012 TEACHING AND INSTRUCTION Fundamentals of Ecology, UAA, Fall 2013 Winter Ecology Processes in the High Arctic, UNIS Spring 2013 Climate Change Seminar-UNIS Spring 2013 Winter Ecology Processes in the High Arctic, UNIS Fall 2012 Climate Change Seminar-UNIS Fall 2012 Isotopes in Environmental Sciences, Spring 2012 Isotope Geochemistry, team instruction, Spring 2010 Graduate Seminar: Ecological Studies in the North, Fall 2009 Isotope Biogeochemistry, University of Alaska Anchorage, Spring 2005 Physiological Plant & Ecosystem Ecology, University of Wyoming, 1999 – 2000 Principles of Rangeland Ecology and Management, University of Wyoming, 1996 - 1999 Stable Isotopes in the Biological and Earth Sciences, 1997 & 1999 Ecophysiology and Biogeochemistry, Colorado State University, 1995 Guest Lectures and Presentations (Recent Examples) Ungulate and Carnivore diet ecology in Alaska, Trondheim University, Center for Conservation Biology Broad perspectives on Arctic Change, Norwegian Natural Science University, December 2012 Changes in Climate across the Arctic, Texas A&M University, November 2012 Arctic changes, resource management and policy implications, Transatlantic Science Week, Houston, TX November 2012 C&N cycling in a changing Arctic, University Center on Svalbard, Undergraduate Seminar, November 2012 Climate Changes in the Arctic, Alaska Pacific University, April 2011 Climate Changes in the Arctic, Alaska Pacific University, March 2010 Winter Processes in Northern Alaska, Alaska Pacific University, March 2009 An Overview of Biocomplexity in the High Arctic, Thule Air Base, Greenland, August 2003 Northern Rangeland Responses to Changing Climates: Examples from AK and Scandinavia. Rangeland Ecosystem Science Department, Colorado State University, 2002 The Global Carbon Cycle and Isotopic Applications, Geology and Geophysics Department, University of Wyoming, 2001 Isotopes in Terrestrial Ecosystem Biogeochemistry, Botany Department, University of Wyoming, Spring 1999 Our Changing Climate: How Will it Affect Rangelands? Laramie Sunrise Rotary Club, December 1997 The Causes and Consequences of Global Climate Change; Department of Plant, Soil and Insect Sciences, University of Wyoming, Soil Microbial Ecology Class, Fall 1997 21 Climate Change in High and Mid-Latitudes: What can we expect? Institute of Environment and Natural Resources, University of Wyoming, Fall 1997 National Activities Editorial Responsibilities Associate Editor, Arctic, Antarctic and Alpine Research, 2006-present Corresponding Editor, EOS, American Geophysical Union, 2005-present Advisory Appointments Prince William Sound Science Center, Board of Directors, 2009-2012 Advisory Panelist, Office of Polar Programs, National Science Foundation, 2006 Advisory Panelist, Office of Polar Programs, National Science Foundation, 2005 Advisory Panelist, IGERT, National Science Foundation, 2004 Advisory Panelist, Biocomplexity in the Environment, National Science Foundation, 2001 Advisory Panelist, Ecosystem Studies Program, National Science Foundation, 1999 and 2000 Advisory Panelist, NEON Instrumentation, National Science Foundation, 2000 Infrastructure Planning NEON Taiga Implementation Committee Chair, 2009, 2010, 2011 NEON Taiga Regional Representative, 2006, 2007, 2008 Organization of Taiga domain information and site determination NEON Tundra-Taiga Planning Initiative Organizer (Anchorage, AK), February, 2006 International Activities Research Recognition IPY Montreal, Co-author and mentor of Adam Csank’s 2nd place “Young Investigator Researcher Excellence” award-winning poster presentation, April 2012 Research Program Participation Shrub-Hub participant--Tundra science network International Polar Year, Two NSF IPY projects, 2006-2009 International Tundra Experiment (ITEX) PI, 1994-present International Conference of Arctic Research Planning Meeting, Copenhagen, March 2006 SwedArc--Swedish-Russian Expedition in the Eastern Arctic, 1998 Terrestrial Initiative of Global Change Research (TIGER), National Environment Research Council, England, 1996-1998 Arctic Special Topic, National Environment Research Council, England, 1990-1993 External Examiner Jean Birks, University of Waterloo, Canada, PhD 22 University Appointments UAA Research Committee, 2012-present UAA Vice Provost for Research, Search Committee, 2011 UAA and Chugach National Forest Research and Outreach Partnership, 2010 UA Center for Global Climate Change Graduate and Undergraduate Fellowship Review Committee, Spring 2009, 2010, 2011, 2012 UAA Committee for Undergraduate Research, 2008-2009 UA EPSCoR Phase 4 Proposal Committee, 2009 UA Committee on Climate Change, 2009-present Research Council, College of Arts and Sciences, 2008, 2009, 2010 UAA Research Cabinet, Vice Provost for Research and Graduate Studies Office, Fall 2007 UA IPY Scientific Subcommittee, August 2007-present IPY Organizing Committee, Vice Provost for Research and Graduate Education, 2007-present Vice President for Research and Graduate Education Council-University of Alaska Anchorage, September 2004-2007 Council of Chairs Budget Planning Retreat, February, 2006, Anchorage Integrated Sciences Building Space and Planning Committee, UAA, 2004-present Chancellor’s Council on Budget and Planning-University of Alaska Anchorage, 2004-2007 Dean’s Council of Chairs and Directors-University of Alaska Anchorage, September 2004-present Goldwater Scholarship Committee, University of Wyoming, 1998-2001 Dean’s Five-year Review Committee, University of Wyoming, 1998-1999 Cross-college Life Sciences Program, University of Wyoming, 1999 Faculty Senator, University of Wyoming, 1997-2001 Dean’s Council, College of Agriculture, 1998-2001 Leadership Training UAA Effective Leadership Module, Human Resources Department, November 2007 UA Presidential Leadership Forum, October 2007 UA Presidential Leadership Forum, September 2005 UAA Planning and Budget Workshop, L Gates-Seminar Leader, January 2005 Public Outreach and Education (recent examples) US Embassy, Oslo,Norway; Fulbright Evening Reception-Keynote Address-February 2013 Korean Arctic Climate Change News Broadcast, June 2012 UAA-USFS Classrooms for Climate Symposium Session Chair, May 2011 Field Tour, Global Climate Change in the High Arctic, Thule Greenland, 2010 Anchorage School District, Climate Change Symposium, 2010 Channel 2 interview, Glacial Retreat in Alaska, 2010 Norwegian Parliamentarians, Energy and Environment Committee: Opportunities and challenges for Alaska & Norway under changing climates and increasing energy demands, Dinner speaker, September 2007 Anchorage Channel 2 television commentary & interview: United Nations and Bush Administration Climate Change Sessions, September 2007 UAA Sustainability Workshop, Arctic Climate Change: Today’s perspective, September 2007 23 Anchorage School District Science Teacher Training, Climate Change Science in the Classroom, August 2007 Alaska Newspaper Featured Article on Greenland Climate Change, August 2007 DOD Stars & Stripes Newspaper Featured Arctic on field research in NW Greenland, July 2007 UAA “Witness the Arctic” featured insert, ARCUS Winter 2006 US Arctic Research Commission, ENRI Arctic Studies, June 2005 & 2006 North Pacific Research Board meeting: ENRI & UAA Research trajectories for 2010, June 2006 Mayor of Anchorage “Trade Mission” meeting with Seattle Mayor Greg Nickels: Presentation on Climate Change in the Arctic, July 2006 “Strengthening our Cities: Mayors Responding to Global Warming” sponsored by Mayor Mark Begich, Field trip leader and speaker, September 2006 KUAC Public Radio, “Alaska News Nightly” interview and commentary on the changing Arctic, June 2006 Invited Presentation to the Alaska Conservation Alliance Annual Meeting on Climate Change in the Arctic, September 2005 Dr. A. Bement, Director of the National Science Foundation and Chancellor Maimon: An ENRI Overview, September 2005 MENTORED UNDERGRADUATE STUDENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. Leland Miller- University of Alaska Anchorage-2012 Lacey Miller- REU student, University of Alaska Anchorage-2012 Brianna Traxinger-Colorado College-2012 Andy DuComb, University of Colorado--Summer 2011 Brian Kramp, Alaska Pacific University--Summer 2011 Leland Miller, University of Alaska Anchorage--Summer 2011 Isaac Hayward, University of Wyoming--Summer 2011 Amber Lewis, University of Alaska Anchorage--REU student 2010 Brett Frazer, University of Alaska Anchorage--REU student 2008, 2009, 2010 Andy Anderson-Smith, University of Alaska Anchorage, 2009 Eian Prohl, University of New Hampshire--REU 2009 Heidi Kristensen, University of Alaska Fairbanks--REU student 2007 Jeremy Chignell, University of Alaska Anchorage--REU student 2007 Katy Nagel, University of Minnesota, 2007 Haley Ohms, Biology, University of Alaska Anchorage, 2006 Meg Olson, University of Alaska Anchorage, 2004 Kara Bastin, Life Sciences Program, CSU, 2002-present Travis Davis, Resource Management, CSU, 2003 Nick Levitt, Chemistry, Texas A&M University, 2003 Kristy Olin, Natural Resources, Colorado State University, 2003 Vanessia Thames, Natural Resource Management, CSU, 2002-present Brad Holliday, Renewable Resources, University of Wyoming, 1999-2000 Todd Spivey, Renewable Resources, University of Wyoming, 1999-2001 Tom Antionti, Renewable Resources, University of Wyoming, 1999-2001 Mark McNeal, Botany Department, University of Wyoming, 1999-2000 Jason Thomas, Botany Department, University of Wyoming, 1999-2001 Judd Hill, Biology Department, Wake Forest University, 1999 Mary Clever, Renewable Resources, University of Wyoming, 1999 Jessica Surlock, Renewable Resources, University of Wyoming, 1998-1999 24 30. 31. 32. 33. 34. 35. Kyra Povirk, Renewable Resources, University of Wyoming, 1996-1997 Robert Piper, Renewable Resources, University of Wyoming, 1996-1998 Amy Davison, Rangeland Ecology and Watershed Management, UW, 1996-1997 Megan Ordway, Rangeland Ecosystem Science Department, CSU, 1995-1996 Amy Oscarson, Rangeland Ecosystem Science Department, CSU, 1994-1995 Jeff Leonard, Rangeland Ecosystem Science Department, CSU, 1993-1994 GRADUATE STUDENT SUPERVISION Major Professor and/or Co-advisor 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Ken Tape, PhD student, UAA-UAF Joint PhD program, NSF EPSCoR fellowship, 2008-2012 Matt O’Dell, MS UAA, 2011-present Matt Winnick, PhD student, Stanford University, 2011-present Andy Baltensperger, PhD student UAF, Institute of Arctic Biology, 2010-present Andy Anderson-Smith, MS student, University of Alaska, Anchorage, 2010-present Ashley Stanek, MS student, University of Alaska Anchorage, 2010-present Lisa Ebbs, MS student, University of Alaska Anchorage, 2009-present Sean Cahoon, MS student, University of Alaska Anchorage, 2008-2009 (currently PhD student at PSU) Beth Sharp, MS student, University of Alaska Anchorage, 2009-2012 (currently Enviornmental Scientists-BP Alaska) Seth Arens, MS student, University of Alaska Anchorage, 2005-2007 (currently program manager, City of Salt Lake, UT) Matt Rogers, MS student, University of Alaska Anchorage, 2006-2008 (currently isotope analyst, UAA) Allison Sayer, MS student, University of Alaska Anchorage, 2005-2007 (graduated May 2008) Paddy Sullivan, Francis Clark Fellow, CSU, Graduate Degree Program in Ecology, PhD awarded 2005 (Currently a Research Scientist at ENRI-UAA) Derek Esposito, CNR 3F Fellow, CSU, Graduate Degree Program in Ecology, MS, 2002 Kevin O’Dea, UW Renewable Resources, MS 2000-present Robert Piper, UW Renewable Resources Department, MS, 1999-2001 (Currently a Soil Scientist at North Wind Environmental Corporation) Ted Hehn, UW Renewable Resources Department, MS, 1997-1999 (Currently a Research Associate for NEON) Karla Brown, CSU Rangeland Ecosystem Science Department, MS, 1994-1996 (Currently a CSU Extension Agent.) Karrin Alstad, CSU Rangeland Ecosystem Science Department, MS, 1995-1998 (Currently a PhD student at Northern Arizona University) Andrea Rayte, CSU Rangeland Ecosystem Science Department, MS, 1994-1996 Graduate Committee Member 1. 2. 3. 4. 5. 6. 7. James Willacker, PhD University of Alaska Fairbanks / UAA, 2010-present Wade Schock, MS student, University of Alaska Anchorage, 2010-present Dan Rinella, PhD student, University of Alaska Fairbanks / UAA, 2005-2009 Ryan Vachon, PhD student, University of Colorado, Boulder, 2002-2007 (Currently a Postdoctoral Associate with CIRES, CU Boulder) Steven Blecker, GDPE, Colorado State University, PhD, 2001-2004 Danielle Bilyeu, GDPE, Colorado State University, PhD, 2002-2004 John Stark, GDPE, Colorado State University, PhD, 2002-2004 25 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. Mark Lyford, UW Botany Department, PhD, 1999-2001 (Currently an instructor at the University of Wyoming) Brenda Greer, UW Geology and Geophysics, PhD, 2000 Michele Slayton, UW Botany Department, PhD, 1999-2000 (Currently an Assistant Professor at Western State College, Gunnison, CO) Jerry Winslow, UW Botany Department, PhD, 1996-1999 (Currently an Assistant Professor, Texas Tech University) Rachel Toner, UW Geology and Geophysics, MS, 1997-2000 Matt Germino, UW Botany Department, PhD, 1997-2000 (Currently an Research Scientists with USGS, Boise, ID) Cynthia Wilson, UW Botany Department, MS, 1997-1999 (Currently a PhD student at Duke University) Nicole Waginspock, UW Anthropology Department, MS, 1997-1999 (Currenty a PhD student at the University of Arizona) Mike Dodd, CSU Rangeland Ecosystem Science, PhD, 1994-1997 (Currently a Research Scientist in New Zealand) Rich Alward, CSU Biology Department and GDPE, PhD, 1996-1999 (Currently an Associate Director of a University of Nebraska Field Station) Byran Stevenson, CSU Soil and Crop Sciences Department, 1995-1998 (Currently a Research Scientist with ARS) Jace Fahnestock, CSU Biology Department, 1997-1999, (Currently a VP for Natural Resources, North Wind Environmental Consulting Firm, Idaho) SUPERVISED POSTDOCTORAL FELLOWS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Dr. Adam Csank, NSF 14C project, 2010-2012 (currently Assistant Professor, Lepzing Univ., Canada) Dr. Josh Leffler, NSF AON project, 2012-present Dr. Nathan Wolf, USFWS LCC project, 2012-present Dr. Pat Tomco, NASA Copper River project, 2011-present Rommel Zulueta, NASA Copper River project, 2010-present Dr. Jessica Cable, NSF OPP Postdoctoral Fellow, 2009-2011 (Currently Res. Assistant Professor-UAF) Dr. Lina Taneva, NSF IPY Project Postdoctoral Fellow, 2007-2009 (currently a staff scientist in a nonprofit) Dr. Robert Pattison, NSF IPY Project Postdoctoral Fellow, 2007-2009 (currently a USFS Research scientist) Dr. Paddy Sullivan, Biocomplexity Project, 2004-2005 (currently a Research Scientist at ENRI) Dr. Heidi Steltzer, 2003-2005 NREL, Colorado State University (Currently an Assistant Professor, Fort Lewis College, CO) Dr. Rod Chimner, 2003-2005, NREL, Colorado State University (Currently Assistant Professor, Michigan Technology University) Dr. Jace Fahnestock, 1999-2002, Colorado State University (Currently the VP for Natural Resources, North Wind Inc.) Dr. Carol Bilbrough, 1998-2000, University of Wyoming (Currently a Research Scientist with Wyoming Department of Environmental Quality) Dr. M. Jones, 1995-1998. Dr. A. N. Parsons, 1994-1996 (Currently a Program Officer, Natural Environment Research Council, UK) Dr. P. A. Wookey, 1991-193, (Currently, Professor, Sheffield University, UK) 26 SUPERVISED RESEARCH ASSOCIATES 1. 2. 3. 4. 5. 4. 5. 6. 7. 8. Nicchole Van Hoey, DOE Project Summer 2012 Dustin Grossheim, NSF 14C project, Summer 2012 Matt Rogers, Isotope Analyst, UAA Stable Isotope Laboratory, 2011-present Naomi Bargmann, Assistant Isotope Analyst, Stable Isotope Lab, 2011-present Brian Cohn, Isotope Analyst, UAA Stable Isotope Laboratory, 2007-2011 Daniel Reuss, Laboratory Manager, CSU Stable Isotope Facility, Colorado State University Derek Esposito, NREL, Colorado State University, 2001-2002 L. Walsh, NREL, Colorado State University, 2003 Kyra Povirk, University of Wyoming, Fall 1999-2000 (Currently an Rangeland Management Specialist at Whitebark, Inc., Missoula, Montana) M. Larson, University of Wyoming, Stable Isotope Facility, 1998-2000. (Currently Isotope Lab Manager at the University of Wyoming) PROFESSIONAL SERVICE International External Examiner Jean Birks, PhD exam, University of Waterloo, Canada. December 2003. Water isotopes in precipitation and climate proxies of the Central Great Plains, Canada. International Program Participation 1. 2. 3. 4. 5. 6. 7. International Tundra Experiment (ITEX) (http://www.geog.ubc.ca/itex/). A network of arctic and alpine climate warming studies. 1991-present. Global Network of Isotopes in Precipitation (GNIP) (http://www-naweb.iaea.org/napc/ih/ IHS_resources_gnip.html). A network of national programs sponsored by the IAEA (International Atomic Energy Agency) for the study of water isotopes in precipitation as applied to freshwater processes. 1994-present. FLUXNET (http://fluxnet.ornl.gov/). A Network of sites that are quantifying the exchange of mass and energy between the biosphere and the atmosphere. 1996-present. GCTE-NEWS (IGBP-Global Change and Terrestrial Ecology, Network of Environmental Warming Studies) (http://www.igbp.net/5.57b1bf74133dc13fe9980003412.html). A consortium of studies examining the effects of changes in climate on soil N mineralization, respiration and primary production. 1998-present. GLDN (Global Litter Decomposition Network). A network of studies examining how land use and climate change affect litter decomposition under common conditions. 1996-present. University of the Arctic Field Course. A 4-week modular field course designed to instruct U. S. and foreign students on the complexity and sustainability of Arctic Ecosystems (approved and under development as part of my NSF-BE project) TIGER (Terrestrial Initiative for Global Environmental Research). A consortium program addressing climate change processes in Western Europe. 1995-1998. National Program Participation 27 1. 2. 3. 4. North American Tundra Experiment (NATEX). A network of sites in North America (Northern Ellesmere Island, Barrow, Alaska and Toolik Lake, Alaska) conducting comparative studies of Arctic tundra responses to similar changes in climate. 1999-present. BASIN (Biogeosphere-Atmosphere Stable Isotope Network) (http://basin.yolasite.com/). A consortium of studies examining the 13C and 18O of CO2 and water as a means of characterizing the coupling of carbon and water processes in terrestrial ecosystems. 2000-present. USNIP (United States Network for Isotopes in Precipitation) (http://www.uaa.alaska.edu/enri/databases/ usnip/index.cfm). A national network that I have established examining the isotopes of water in precipitation as applied to plant water sources, niche partitioning and palaeoclimatology. 1999-present. AmeriFlux. A network of research sites quantifying the patterns of magnitudes of carbon exchange between terrestrial ecosystems and the atmosphere (http://public.ornl.gov/ameriflux/). 1998-present. Reviewer for Granting Agencies and Foundations National Science Foundation (>100 proposals reviewed to date) USDA-NRI (5 proposals reviewed to date) STRATEGIC PLANNING, CONSORTIUM DEVELOPMENT, PARTNERSHIPS AND SYNTHESIS ACTIVITIES Strategic Planning 1. Restructuring the Environment and Natural Resources Institute and creating an operational Strategic Plan (2006-2007). Using faculty, staff and stakeholder participation, I have led the reorganizing of ENRI at UAA. We are currently in the implementation phase of the plan Consortiums 1. 2. 3. 4. 5. 6. Migration distances of Arctic and Sub-Arctic caribou herds dictate their vulnerability to changes in winter and summer climates. Collaboration between USFWS LCC Caribou Ecology programs in Western and Arctic Alaska plus collaborations with colleagues in Norway and Canada. Macrosystems Biology team. 2012. 3RIVERS: A Southcentral Alaska long-term research, education and outreach program. Collaboration between UAA, Chugach National Forest, APU, USGS, NPS, USFWS. This program would compare and contrast the ecohydrology of three adjoining watersheds: The 20-Mile, the Portage and the Placer. Transitions in the Copper River watershed and adjoining marine system in Southcentral Alaska: Workshops organization and program development leadership, (2007) Collaboration between UAA, private and Native corporations, federal and state agencies, and UAF researchers. IPY Snow-shrub interactions and feedbacks. A research team of UAA faculty addressing the role of changes in snow on the processes governing shrub development and expansion in the Arctic. NSF IPY funds acquired. IPY-ITEX studies in the Pan Arctic. A research team of UAA and US scientists using long-term warming experiments to identify what changes can be expected from climate warming in arctic and alpine tundra. NSF IPY funds acquired. Predator-prey dynamics in central Alaska: Proposal consortium of UAA and agency scientists designed to address wolf-moose interaction in central Alaska. Initial discussions with USDA have taken place and project development is underway. 28 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. Biocomplexity in arctic systems--University of Alaska Anchorage, University of Washington, University of California. NSF-Biocomplexity in the Environment funds acquired. Coupled changes in climate on mixed-grass prairie--Colorado State University & Agricultural Research Service. USDA National Research Initiative funds acquired. Carbon sequestration on temperate rangelands--University of Wyoming and Agricultural Research Service (USDA). USDA funding obtained under the NRI-Soil and Soil Biology Program Winter carbon flux in tundra habitats--University of Wyoming, California and Alaska. NSF-funding obtained under OPP-ATLAS (Arctic transitions of the land-atmosphere system) program. Species and tundra ecosystem responses to warming and increased snow--University of Wyoming, Florida, Alaska, Michigan, British Columbia, and Woods Hole Institute. NSF-funding obtained under the NATEX (North American Tundra Experiment) program. Carbon flux on range and forested lands in Wyoming--University of Wyoming, U. S. Forest Service, Bureau of Land Management, and Kirkbride Cattle and Land Company. NSF, Agricultural Experiment Station and USFS funding obtained under the NSF-TECO (Terrestrial Ecology and Global Climate Change) program. U. S. Network of Isotopes in Precipitation--Colorado State University, University of Colorado, Illinois State Water Survey and the National Atmospheric Deposition Program. NSF funding obtained under the Earth System History Program and the GNIP (Global Network of Isotopes in Precipitation-IAEA) program. Plant-animal interactions in Rocky Mountain National Parks--University of Wyoming, Colorado State University, Rocky Mountain National Park and Wind Cave National Park. USGS-BRD funding obtained. Moorland responses to climatic change--Merlewood Research Station, Manchester University, Birmingham University, and Aberdeen University. NERC (Natural Environment Research Council) funding obtained under the TIGER (Terrestrial Initiative for Global Environmental Research) program. Comparative arctic tundra responses to changes in climate--Merlewood Research Station and the University of Manchester. NERC funding obtained under the Arctic Ecology Special Topic. Controls on woody seedling development on hardwood rangelands--University of California, UC Sierra Field Station, Hopland Field Station. USDA and UC funding obtained under the UC Hardwood Range Research Initiative. NOTE: In each one of these cases I was instrumental in developing the program vision, organizing the consortiums, developing and crafting the proposals, and implementing the projects. Planning and Synthesis Activities Diet Ecology of Svalbard Reindeer, November & December 2012 Comparative Carnivore Ecology in Alaska and Scandinavia, December 2012 Insect herbivory and food selection in response to experimental warming, December 2012 NEON Planning, Fairbanks, March 2010 NEON Planning; Las Cruces, NM, February 2006 NEON-Tundra-Taiga Planning; Anchorage, AK, March 2005 NSF Land-Atmosphere Ice Interactions: Terrestrial Ecosystems in the Arctic; Seattle, WA, January 2005 CORREO of the Consortium of Regional Representatives of NEON; Michigan, November 2005 Community of Scientific Practice, Synthesis and Integration, National Science Foundation, Arctic System Science; Seattle, WA, Oct. 2004 Isotopic characteristics of Precipitation across North America, Biosphere-Atmosphere Stable Isotope Network Annual Workshop; Pt. Reyes, CA 29 NSF Arctic System Science Webinar: Open forum to discuss the future structure and function of the NSF ARCSS program; November 2005 NEON, Isotope Workshop; Park City, UT, October 2004 BASIN Workshop; San Francisco, CA, October 2004 NEON, Rocky Mountain Group; Boulder, CO Spring, 2004 Isotopes in the Earth Sciences, Integrating water isotopes in General Circulation Models, National Center for Atmospheric Research; Boulder, CO, January 2004 NIGEC (National Institute for Global Environmental Change-DOE) Soil Respiration Workshop; Boulder, CO, October 2003 SEARCH, NSF Office of Polar Programs, Synthesis and Planning Workshop; Seattle, WA, October 2003 Biocomplexity in the Environment, Principle Investigator Synthesis and Future Directions; Washington DC, September 2003 North American Carbon Program, Planning and research trajectories; Washington D.C., March 2003 International Tundra Experiment (ITEX), synthesis and future directions; Finse, Norway, October 2002 Arctic systems in transitions, NSF-Office of Polar Programs; Victoria, Canada, October 2002 Front Range Ecology, Systematics and Climate Observatory (FRESCO) proposal workshop for a National Environmental Observatory Network (NEON); Denver Botanical Gardens, February, 2001 Future Arctic Research Initiatives: Planning and Implementation, LAII (Land-Atmosphere Ice Interactions) meeting; Victoria, Canada, February 2001 Cross-College Life Sciences Program Development and Strategic Planning; University of Wyoming, 1999 Planning for the Toolik Lake Field Station Winter Residence; February, 1997 Toolik Lake Field Station: Planning for the 21st Century; Bodega Bay, CA, March 1995 An Arctic Laboratory for British Studies: Planning and implementation of the NERC Arctic Special Topic; London, England, May 1991 Hardwood Range Programs for the State of California. California State Department of Forestry; Sacramento, CA, 1986 PROFESSIONAL SOCIETIES The Wildlife Society of America American Geophysical Union Ecological Society of America 30