Dr. Bjartmar Sveinbjörnsson CV continued

SUPERVISION OF GRADUATE STUDENT AND POST-DOC:

 At University of Alaska Anchorage:

• Present: Tumi Traustason, Brian Heitz, Kendra Calhoun (co-chair)

• Previous: Alix Wennekens, M.S. 1985, Tania Spurkland, M.S. 1988, William Abadie, M.S. 1991, Allison Butler, M.S. 1993, Brian Kovol, M.S. 1999, Raquiba Chouhury, M.S. 1999, Matthew Smith 2005, Patricia Loomis (co-chair) 2005

• Dr. Jonathan Davis, Post-Doc, 1990-1992, Dr. Patrick Sullivan, 2005-2008, Dr. Paddy Sullivan, 2007-2009,
• Co-Advisor: Dr. Isaac Bertschi, 2006, Dr. Lina Taneva and Dr. Robert Pattison, 2007-2009

At University of Lund, Sweden:

• Staffan Karlsson, Ph.D. 1982

COURSES TAUGHT AT UNIVERSITY OF ALASKA ANCHORAGE:

Note: Some of these courses have changed name and to some extent, content

• Fundamentals of Biology (Biol. 107)
• Fundamentals of Biology Lab (Biol. 108)
• Plant Form and Function (Biol. 239)
• Principles of Ecology (Biol. 271 now 371)
• Terrestrial Ecosystems of the World (Biol. 375)
• Plant Physiology (Biol. 316)
• Plant Ecology Field Course (Biol. 439)
• Arctic Ecosystems (Biol. 475)
• Northern Ecosystems (Biol. 475)
• Boreal Ecosystems (Biol. 476)
• Physiological Plant Ecology (Biol. 676)
• Ecology and physiology of mosses and lichens (Biol. 498)
• Biology of Non-Vascular plants (Biol. 333)
• Many Independent Study Courses and Directed Undergraduate Research Projects. I currently teach the underlined courses

• USA representative on the IASC sponsored international working group PPS-Arctic
• Member - Ecological Society of America
• Member - International Association for Ecology

REVIEWED PUBLICATIONS:

• Sullivan, P., Arens, S., Welker, J. M., and Sveinbjörnsson, B. 2008. Continuous estimates of winter CO2 efflux from the soils of arctic and boreal ecosystems in Alaska. Journal of Geophysical Research 113: G04009.

• Sonesson, M., Sveinbjörnsson, B., Tehler, A., and Carlsson, B.Å. 2007. A comparison of the physiology, anatomy, and ribosomal DNA composition of alpine and subalpine populations of the lichen Nephroma articum – the effects of an eight-year transplant experiment. The Bryologist 111:244-253.

• Loomis, P.F., Ruess, R.W., Sveinbjörnsson, B. and Kielland, K. 2006. Mineral and organic nitrogen cycling along a latitudinal treeline transect in Alaska. Ecoscience 13:544-556.

• Ruess, R.W., R.L. Hendrick, J.G. Vogel, B. Sveinbjörnsson. 2006. The role of fine roots in the functioning of boreal forests. In: F.S. Chapin, III, M.W. Oswood, K. Van Cleve, L. Viereck, and D. Verbyla (editors), Alaska’s changing boreal forest, Oxford University Press, New York, NY pp. 189-210.

• Chapin, F.S., McGuire, D., Ruess, R.W., Walker, M.W., Boone, R.D., Edwards, M.E., Finney, B.P., Hinzman, L.D., Jones, J.B., Juday, G.P., Kasische, E.S., Kielland, K., Lloyd, A.H., Oswood, M.W., Ping, C-L., Rexstad, E., Romanovsky, V.E., Schimel, J.P., Sparrow, E.B., Sveinbjörnsson, B., Van Cleve, K., Verbyla, D.L., Viereck, L.A., Werner, R.A., Wurtz, T.L., Yarie, J. 2006. Summary and synthesis – past and future changes in the Alaskan Boreal Forest. Ibid pp. 332-338.

• Ruess, R.W., Hendrick, R.L., Burton, A.J., Pregitzer, K.S., Sveinbjörnsson, B., Allen, M.F., and Maurer, G. 2003. Coupling fine root dynamics with ecosystem carbon cycling in black spruce forests of interior Alaska. Ecological Monographs, 73:643-662.

• Sveinbjörnsson, B., Hofgaard, M., and Lloyd, A. 2002. Natural Causes of the Tundra-Taiga Boundary. Ambio-Special Report 12:21-27.

• Karlsson, P.S., Nordell, K.O., and Sveinbjörnsson. 2001. Biomass and nitrogen turnover and nutrient use characteristics in subarctic mountain birch trees. In: Wielgolaski, F.E. (Ed.) Nordic Mountain Birch Ecosystems, p. 127-141. Man and the Biosphere Series vol. 27. UNESCO, Paris and Parthenon Publ. Group, New York and London, 390pp.

• J. H. C. Cornelissen, T. V. Callaghan, J. M. Alatalo, A. Michelsen, E. Graglia, A. E. Hartley, D. S. Hik, S. E. Hobbie, M. C. Press, C. H. Robinson, G. H. R. Henry, G. R. Shaver, G. K. Phoenix, D. Gwynn Jones, S. Jonasson, F. S. Chapin III, U. Molau, C. Neill, J. A. Lee, J. M. Melillo, B. Sveinbjörnsson & R. Aerts. 2001. Global change and arctic ecosystems: Is lichen decline a function of increases in vascular plant biomass? J. Ecol. 89: 984-994.

• Sveinbjörnsson, B. 2000. North American and European treelines: External forces and internal processes controlling position. Ambio, 29:388-395.

• Cook, A., Oechel, W.C, and Sveinbjörnsson, B. 1997. Using Icelandic CO2 springs to understand the long-term effects of elevated atmospheric CO2. In: Plant Responses to Elevated CO2. Evidence from Natural Springs. Raschi, A., Miglietta, F., Tognetti, R. and van Gardingen, P. (eds.), Chapter 8. Cambridge University Press.

• Sveinbjörnsson, B. and Sonesson, M. 1997. Photosynthesis and respiration in mosses and lichens. In: Oechel, W.C., Callaghan, T., Gilmanov, T., Holten, J.I., Maxwell, B., Molau, U., and Sveinbjörnsson, B. (eds.): “Global Change and Arctic Terrestrial Ecosystems”. Springer, New York. pp. 113-128.

• Scott, P.A., Lavoie, C., MacDonald, G.L., Sveinbjörnsson, B., Wein, R.W. 1997. Climate change and future position of treeline. Ibid. pp. 245-265.
• Sveinbjörnsson, B., Kauhanen, H., and Nordell, O. 1996. Treeline ecology of mountain birch in the Torneträsk area. Ecological Bulletins 46:65-70.

• Sveinbjörnsson, B., Davis, J., Abadie, W., and Butler, A. 1994. Soil carbon and nitrogen turnover at different elevations in the Chugach Mountains of south central Alaska, U.S.A. Arctic and Alpine Research, 27:29-37.
• Sveinbjörnsson, B., Sonesson, M., Nordell, O. and Karlsson, S. 1993. Performance of mountain birch in different environments in Sweden and Iceland: Implications for Afforestation. In: Alden, J. (ed.), “Forest developments in cold climates”. Plenum Press, pp. 79-88.

• Sveinbjörnsson, B. 1992. Climate and growth of mountain birch near the treeline in northern Sweden and Iceland. In: Frenzel, B. (ed.). “Oscillations of the alpine and polar tree limits in the Holocene”. Paläoklimaforschung, 9:57-67.

• Sveinbjörnsson, B. and Oechel, W.C. 1992. Controls on growth and productivity of bryophytes: Environmental limitations under current and anticipated conditions. In: Bates, J.W. and Farmer, A.M. (eds.), “Bryophytes in a changing environment”. Claredon Press, Oxford, pp. 77-102.

• Sveinbjörnsson, B. 1992. The arctic treeline in a changing climate. In: Chapin, F.S. III., Jeffries, R.L., Reynolds, J.F., Shaver, G.R. (eds.), “Arctic Ecosystems in a Changing Climate”. Academic Press, San Diego, pp. 239-256.

• Davis, J., Schober, A., Bahn, M., and Sveinbjörnsson, B. 1990. Soil carbon turnover at and below the elevational treeline in northern Fennoscandia. Arctic and Alpine Research 23:279-286.

• Sveinbjörnsson, B. and Oechel, W.C. 1989. Carbohydrate and lipid levels in Polytrichum mosses growing on the Alaskan tundra. Holarctic Ecology, 14:272-277.

• Sveinbjörnsson, B. 1990. Reindeer lichen productivity: Problems and possibilities. Rangifer: Special Issue No. 3. pp. 91-98.

• Sveinbjörnsson, B., Nordell, O., and Kauhanen, H. 1989. Nutrient relations of mountain birch growth at and near the elevational treeline in Swedish Lapland. Functional Ecology, 6:213-220.

• Sveinbjörnsson, B. 1987. Reindeer lichen productivity as a function of mat thickness. Arctic and Alpine Research, 9:437-441.

• Sveinbjörnsson, B. 1987. Tree size and biomass partitioning in juvenile mountain birch near Abisko, Swedish, Lapland. Reports from the Kevo Subarctic Research Station 20:1-8.

• Sveinbjörnsson, B. 1983. Bioclimate and its effect on the carbon flux of mountain birch (Betula pubescens Ehr.) at its altitudinal tree-line in the Torneträsk area, northern Sweden. Nordicana 47:111-122.

• Sveinbjörnsson, B. and Oechel, W.C. 1983. The effect of temperature preconditioning on the subsequent temperature relations of CO2 flux in geographically diverse populations of the moss Polytrichum commune. Ecology 64:1100-1108.

• Sveinbjörnsson, B. 1982. Alaskan plants and atmospheric carbon dioxide. In: McBeath, J. (ed.), “The potential effects of carbon dioxide-induced climatic changes in Alaska”. School of Agriculture and Land Resources Management. University of Alaska. Misc. Publ. 83-1.

• Heal, O.W., Kummerow, J., Linkins, A.E., Marion, G., Miller, P.C., Oechel, W.C., Parkinson, D., Shaver, G.R., and Sveinbjörnsson, B. 1981. Future carbon accumulation rates based on current knowledge of production and decomposition processes. In: Miller, P.C. (ed.), “Carbon balance in northern ecosystems and the potential effect of carbon dioxide induced climatic change”. Report of a workshop, San Diego, California, March 7-9, 1980. U.S. Department of Energy CONF-8003118, pp. 42-69.

• Klein, D., Sveinbjörnsson, B., Viereck, L., and White, R. 1981. Implications of carbon dioxide induced climatic change on animal ecology and socioecological consequences in northern ecosystems. Ibid. pp. 70-76.

• Sveinbjörnsson, B. and Oechel, W.C. 1981. Controls on CO2 exchange in two Polytrichum moss species. I. Field studies on the tundra near Barrow, Alaska. Oikos 36:114-128.

• Sveinbjörnsson, B. and Oechel, W.C. 1981. Controls on CO2 exchange in two Polytrichum moss species. 2. The implication of belowground plant parts on the whole-plant carbon balance. Ibid. 36:348-354.

• Karlsson, S. and Sveinbjörnsson, B. 1981. Methodological comparison of photosynthetic rates measured by the 14CO2 technique or infrared gas analysis. Photosynthetica 15:447-452.

• Oechel, W.C. and Sveinbjörnsson, B. 1978. Primary production processes in arctic bryophytes at Barrow, Alaska. In: Tieszen, L.L. (ed.), Vegetation and production ecology of an Alaskan arctic tundra. Springer-Verlag, New York, pp. 269-298.

• Miller, P.C., Oechel, W.C., Stoner, W., and Sveinbjörnsson, B. 1978. Simulation of CO2 uptake and water relations of four arctic bryophytes at Point Barrow, Alaska. Photosynthetica 12:7-20.

• Oechel, W.C., Hicklenton, P., Sveinbjörnsson, B., Miller, P.C., and Stoner, W. 1975. Temperature acclimation of photosynthesis in D. fuscescens growing in situ in the arctic and subarctic. Circumpolar Conference on Northern Ecology. Ottawa, Canada. pp. I131-I144.

REPORTS:

• Fridriksson, S., Bjarnason, A.H., and Sveinbjörnsson, B. 1972. “Elymus sand dunes in Iceland.” Surtsey Progress Report. 6:27-29.

• Fridriksson, S., Bjarnason, A.H., and Sveinbjörnsson, B. 1972. “Vascular plants in Surtsey, 1969.” Ibid. 6:30- 33.

• Fridriksson, S., Bjarnason, A.H., and Sveinbjörnsson, B. 1972. “On the vegetation of Heimaey.” Preliminary Report. Ibid. 6:34-35.

• Fridriksson, S., Sveinbjörnsson, B., and Magnússon, S. 1972. “On the vegetation of Heimaey.” Ibid. 6:36-53.

• Fridriksson, S., Sveinbjörnsson, B., and Magnússon S. 1972. “Vegetation of Surtsey- Summer 1970.” Ibid. 6:54-59.

• Fridriksson, S., Sveinbjörnsson, B., and Magnússon, S. 1972. “Substrate map of Surtsey, 1970.” Ibid. 6:60-63.

• Magnússon, S., Sveinbjörnsson, B., and Fridriksson, S. 1972. “Surface temperature measurements and location of thermal areas on Surtsey, summer 1970.” Ibid. 6:82-84.

• Sveinbjörnsson, B. 1995. “Biomass estimation of tall shrubs growing in the Susitna and Matanuska watersheds of south-central Alaska.” A report to the Forest Science Northwest research Station, United States Forestry Service.

IN MANUSCRIPT:
• Sullivan, P. and Sveinbjörnsson, B. Microtopographic control of treeline advance in Noatak National Preserve, northwest Alaska. Submitted to Ecosystems, rejected with recommendation for resubmission following modification.

• Sveinbjörnsson, B., Smith, M., Ruess, R. Traustason, T. and Sullivan, P. The relationship between needle nonstructural carbohydrate concentrations and pool sizes in white spruce needles of different ages at paired forest and treeline sites in three mountain ranges across Alaska. In manuscript. Submitted to Oecologia, rejected with recommendation for resubmission after modification.

• Traustason, T., Sveinbjörnsson, B., and Ruess, R. The effect of damage on white spruce growth and reproductive performance at paired forest and treeline sites in three mountain ranges across Alaska. In manuscript.

• Choudhury, R. and Sveinbjörnsson, B. Effects of needle removal and exposure to elevated carbon dioxide on white spruce seedling shoots: Carbon dioxide exchange, carbohydrates and water use efficiency. In manuscript

• Sveinbjörnsson, B. and Ruess, R.W. Effects of water, shade and nutrient manipulations on growth of two feathermoss species in a black spruce forest in interior Alaska. In manuscript

• Sveinbjörnsson, B., Buchwald, W. and Ruess, R.W. Feathermoss abundance and growth in black spruce and white spruce stands on the Tanana River floodplain, interior Alaska. In manuscript

• Choudhury, R. and Sveinbjörnsson, B. Effects of needle removal and exposure to elevated carbon dioxide on white spruce seedling shoots: Nutrient relations. In manuscript.

• Kovol, B. and Sveinbjörnsson, B. Effects of needle removal and exposure to elevated carbon dioxide on white spruce seedling roots: 1. Root biomass and density. In manuscript.

• Kovol, B. and Sveinbjörnsson, B. Effects of needle removal and exposure to elevated carbon dioxide on white spruce seedling roots: 2. Root and soil respiration. In manuscript.

• Kovol, B. and Sveinbjörnsson, B. Effects of needle removal and exposure to elevated carbon dioxide on white spruce seedling roots: 3. Root and soil nitrogen. In manuscript.

• Reimer, A., Stegen, J. and Sveinbjörnsson, B. Sphagnum growing in an elevated CO2 atmosphere only partially down-regulates net CO2 uptake while growth stimulation falls short of CO2 flux based prediction. In manuscript.

PUBLISHED ABSTRACTS:
• Pattison,R., Sveinbjörnsson,B., Welker,J., Chignell J. Leaf area index and photosynthesis on the arctic tundra at Toolik Lake Alaska Presented at an International ITEX meeting in Reykjavik, Iceland, October 2008.

• Sullivan, P. and Sveinbjörnsson, B. Treeline Research in the Noatak Drainage, Alaska. Presented at an International ITEX meeting in Reykjavik, Iceland, October 2008.

• Sullivan, P. and Sveinbjörnsson, B. Water Stress at the Arctic Treeline: Importance of Parent Material Depth and Atmospheric Drought. Poster presented at the May 2008 Arctic Forum Meeting in Washington, DC.

• Pattison, R., Welker, J., Sveinbjörnsson, B., Sullivan, P., and Chignell, J. Responses of two deciduous shrub species to long-term snow addition and increased air temperatures in the Arctic tundra of Northern Alaska. Poster presented at AGU annual meeting in San Francisco, September 2007.

• Taneva, L., Sullivan, P.F., Sveinbjörnsson, B. and Welker, J.M. Effects of increased snow depth on ecosystem CO2 fluxes in Arctic tundra. Poster presented at AGU annual meeting in San Francisco, September 2007.

• 2002. Traustason, T., Smith, M. R., Sveinbjörnsson, B., and Ruess, R. White spruce damage at treelines in three mountain ranges across Alaska. ESA meeting Tucson, Arizona.

• 2002. Sveinbjörnsson, B. and Buchwald , W. Growth of Feathermosses in White and Black Spruce Stands on the Tanana River Floodplain, Central Alaska. ESA annual meeting, Tucson, Arizona.

• 2001. 2002. Traustason, T., Smith, M. R., Sveinbjörnsson, B., and Ruess, R. White spruce (Picea glauca) needle retention and morphology in three Alaska mountain ranges. ESA meeting Tucson, Arizona.

• 2000. Ruess, R.W., Hendrick, R.L., Sveinbjörnsson, B., and Maurer, G. “Linking fine root dynamics with ecosystem carbon fluxes in Alaskan taiga forests”, Poster presentation at the LTER All Scientist Meeting, Snowbird, UT.

• 1998. Kovol, B.F. and Sveinbjörnsson, B. “Effects of elevated CO2 and needle loss on plant structure and needle anatomy of white spruce (Picea glauca) seedlings”, American Association for the Advancement of Science, 49th Arctic Division Science Conference, Fairbanks, Alaska.

• 1998. Choudhury, R. and Sveinbjörnsson, B. “Effects of elevated CO2 and needle loss on root respiration of white spruce seedlings”, American Association for the Advancement of Science, 49th Arctic Division Science Conference, Fairbanks, Alaska.

• 1997. Kovol, B.F. and Sveinbjörnsson, B. Effects of elevated atmospheric carbon dioxide and needle loss on root biomass and root nitrogen of white spruce (Picea glauca) seedlings in low nutrient soils. American Association for the Advancement of Science, 48th Arctic Division Science Conference, Valdez, Alaska.

• 1997. Choudhury, R. and Sveinbjörnsson, B. 1997. Effect of elevated CO2 on biomass and growth of white spruce (Picea glauca) seedlings. American Association for the Advancement of Science, 48th Arctic Division Science Conference, Valdez, Alaska.

• 1992. Elevational gradients in mountain birch forests: analogs for global change. Nordic symposium on “Disturbance related dynamics of birch and birch dominated ecosystem.” Illugastadir, Iceland.

• 1989. Global Change and the carbon balance of arctic ecosystems. Annual meeting of the Ecological Society of America, Toronto, Canada.

• 1987. Treeline communities on the flanks of the Chugach Mountains, south central Alaska. Ecological Society of America. Annual meeting, Columbus, Ohio.

• 1986. Stem and root respiration of mountain birch near Abisko, Swedish Lapland. Fourth International Congress of Ecology, Syracuse, New York.

• 1985. The effect of fertilizer application on growth of mountain birch near and at the treeline in Swedish Lapland. Ecological Society of America, Minneapolis, Minnesota.

• 1985. The importance of color in reindeer lichen photosynthesis and water relations. Ibid.

• 1984. The effect of reindeer lichen extract on germination and growth of Calamagrostis canadensis and Epilobium angustifolium. Arctic Science Conference, The American Association for the Advancement of Science. Anchorage, Alaska.

• 1984. The effect of reindeer lichen size on its photosynthetic rate. Ibid.

• 1983. Treeline studies in Sweden. Ibid. Fairbanks, Alaska.

UNPUBLISHED CONFERENCE TALKS:
• 1987. Ecology of the mountain birch treeline in the Torneträsk area, Swedish Lapland. Summer meeting of the British Ecological Society and Oikos, the Nordic Ecological Society, Abisko, Sweden.

• 1978. Research plan for studying the causes of treeline positioning. International Tree-line Conference at Kevo, Finland and Abisko, Sweden.

• 1975. The importance of the respiration of belowground parts of arctic Polytrichum mosses. Ontario Colloquium on Ecology, York College, University of Toronto.

UNPUBLISHED SEMINARS AND LECTURES:
• 2004. Treeline research across boreal Alaska. University of Potenza, Italy.

• 2002. Plants and plant environments in the north- Scandinavia, Iceland, and North America. American Rock Garden Society, annual meeting, Anchorage.

• 2001. Laval University, Québec, Canada, The case for carbon limitation at the taiga – tundra interface.

• 2001. Laval University, Québec, Canada, Factors controlling prescence and performance of taiga feathermosses in different successional stands.

• 2001. Copenhagen University, Denmark, Carbon limitation at the white spruce treeline in Alaska.

• 1997. University of Alaska Anchorage, Explanations for vegetation patterns: Treelines revisited.

• 1996. Department of Plant Ecology, University of Uppsala, Sweden. External factors and internal processes affecting tree performance at the treeline.

• 1996. Institute of Biology, University of Iceland. Ecological research in Alaska.

• 1989. Merlewood Research Station, England. Nitrogen relations of mountain birch at treelines in Sweden and Iceland.

• 1989. University of Alaska Anchorage. Experimental treeline studies in Sweden, Iceland, and Alaska.

• 1989. University of Alaska Fairbanks. Tree growth and nitrogen relations at the subarctic elevational treelines.

• 1987. University of Iceland. 1. Nutrient relations at the treeline in Swedish Lapland. 2. Reindeer lichen productivity.

• 1985. University of Lund, Sweden. Lichen color and photosynthesis.

• 1985. University of Alaska Fairbanks. Treeline studies in Swedish Lapland.
• 1985. University of Hawaii. Treeline studies in Sweden.

• 1980. University of Alaska Anchorage. Photosynthesis of arctic bryophytes.

• 1979. University of Umeå, Sweden. Photosynthesis of mountain birch at different elevations.

• 1977. Queens University, Ontario, Canada. Photosynthesis of Polytrichum mosses from different geographic origins.

MEDIA INTERVIEWS AND PRESENTATIONS:
• Interview with Morgunbladid, largest newspaper in Iceland, September 1986.
• Radio Interview, Icelandic State Radio, September 1986.
• Interview with the Anchorage Times, 1987.
• Television interview and documentary on Swedish Educational Television, August 1988.

WORKSHOP AND COURSE PARTICIPATION:
• Arctic Climate Change Meeting, Reykjavík, Iceland, 2005
• Taiga – Tundra Interface , IASC task force meeting, Helsinki 2005
• Taiga – Tundra Interface , IASC task force meeting, Anchorage, October, 2002
• LTER-TAIGA workshop, Fairbanks, October, 2002
• Taiga – Tundra Interface , IASC task force meeting, Quebec City, September, 2002
• DIS (Danish International Studies Program) workshop, Reykjavík, Iceland and Copenhagen, Denmark, March 2001
• LTER-TAIGA workshop, Fairbanks, October , 2000.
• Taiga – Tundra Interface , IASC task force meeting, Edinburgh, September , 2000
• LTER all hands workshop, Snowbird, Utah, August 2000.
• CO2 workshop at Duke University, November 1996.
• UV-B effects on arctic and subarctic plants. Lund, Sweden 1993.
• Global change and Arctic vegetation, Toronto, August 1989.
• CO2 workshops at San Diego University, 1980, 1985, 1988.
• Reindeer workshops in Nome 1983,1984, Bethel, 1985 and Anchorage, 1986, 1999.
• Taiga and tundra fires, management and consequences, workshop, Fairbanks, 1989.
• Computer simulation models in ecology- course, Syracuse, N.Y. 1986.
• Microbial soil processes and ecosystem nutrient cycling-course, UAF, 1989.
• Geographical Information Systems-course, University of Alaska Anchorage.

AWARDS:
• 1994-1995. University of Alaska Anchorage, Chancellor's Award for Research Excellence
 • Conferred the title of Docent, University of Lund, 1979

 SCHOLARSHIPS:
• 1975-1977. Canadian National Research Council Scholarship.
• 1973-1974. McConnel Summer Fellowship from McGill University.
• 1972-1973. Canada Scholarship from the Icelandic Government.
• 1972-1973. Phillip Carpenter Scholarship from McGill University.

HONORARY UNIVERSITY AFFILIATIONS:
• Institute of Arctic Biology, University of Alaska, Fairbanks, Affiliate Professor

• Arctic, Antarctic and Alpine Research
• Biogeochemistry
• Boreal Environmental Research
• Canadian Journal of Botany
• Ecosience
• Environmental Protection Agency (EPA)
• Global Biogeochemical Cycles
• Holarctic Ecology
• Journal of Ecology
• Oikos
• Editorial Board University of Alaska Biological Papers (1986-1988)
• National Science Foundation
• Alaska Science and Technology Foundation
• University of Alaska Fairbanks, Center for Global Change, Graduate Student Research Fund
• Research Council of Norway
• National Environment Research Council (UK)
• US Department of Agriculture, Cooperative State Research Service
• US Environmental Protection Agency, National health and Environmental Health Research Laboratory, Western Ecology Division
• Natural Sciences and Engineering Research Council of Canada
• Official Examiner at a doctoral thesis defense, Bergen, Norway, October 1994
• Official Examiner at a doctoral thesis defense, Umeå, Sweden, June 1999
• External examiner for Docent competence at Swedish Agricultural University, Uppsala, Sweden, 2001.

• Invited speaker at the 75th annual meeting of the Icelandic Forestry Association, Lysuhóll, Iceland, 2005.

• Invited speaker at “Research for Mountain Area Development Seminar III – The Americas” sponsored by the Royal Swedish Academy of Sciences, in Abisko, August-September, 1999.

• Invited speaker at “International Conference of Tundra Ecology and Global Change” in Oppdal, Norway, August 1993.

• Public lecture for the Union of Icelandic Biologists “Plant Ecology and Global Change” Reykjavík, Iceland, October 1992.

• Invited speaker at NATO/ARW workshop”Climate Change: The Biological Implications”, Clemson, South Carolina, October 1991

• Invited speaker at the Pacific Science Conference, Honolulu, Hawaii “Treelines as spatial analogs for global change” June 1991

• Invited to give a paper at a NATO sponsored international conference, “Forestry and tree growth beyond the traditional forestry areas” held in Iceland, June 1991.

• Invited speaker at European Science Foundation sponsored workshop in Innsbrück, “Fluctuations in the polar and altitudinal treeline during the Holocene”, November 1990.

• Invited to present a paper at the “Sixth International Ecological Symposium” held in Yokohama, Japan August 1990

• Presented a paper on “Treelines and Global Climatic Change” at an NSF sponsored meeting at Appleby College, Toronto, Canada, August 1989