Konrad Gajewski

Contact Information

Laboratory for Paleoclimatology and Climatology
Department of Geography, Ottawa-Carleton Institute of Biology and Ottawa-Carleton Geoscience Centre
University of Ottawa
Ottawa, ON K1N 6N5
CANADA

Phone: 613-562-5800 
ext. 1057 (office), 1327 (lab)
Fax: 613-562-5145
Email: gajewski (at) uottawa.ca

Academic Background

• 1983: PhD in Meteorology (Statistics minor), University of Wisconsin, Madison
  Thesis: "On the interpretation of climatic change from fossil record: climatic change in central and eastern United States over the past 2000 years estimated from pollen data"
  Under the supervision of John E. Kutzbach
• 1979: Master of Science in Quaternary Studies, University of Maine, Orono
  Thesis: "Environmental history of Caribou Bog, Penobscot County, Maine"
  Under the supervision of R. B. Davis
• 1973: Baccalaureate of Science in Biology, Union College

Current Research Interests

• My research concerns the causes of climate change and impacts on ecosystems. 
• You can see some of the many projects that my students and I are working on in these pages. See the research section of this web site for more information.

Teaching

These are the courses that I presently teach.

• GEG2304 Climatology
• GEG3114/3514 Biogeography/Biogéographie
• GEG4129 Climate Change
• GEG4105 GIS in Environmental Research
• GEG6301 Environmental Data Analysis and Modeling

The following courses have been taught in the past and may be taught in the future.

• GEG3304 Microclimatology
• GEG3306 Quaternary Paleogeography
• GEG7107 Northern Ecosystems

Selected Publications

Book Chapters and Conference Proceedings

Recent Posters and Presentations (post 2000)

2009

• Bunbury, J and K Gajewski. Accepted. Biogeography of freshwater ostracodes in the Canadian Arctic. Arctic .
• Viau, A, K Gajewski, M Sawada & J Bunbury. Accepted . Low- and High-frequency climate variability in Beringia during the past 25,000 years. Canadian Journal of Earth Sciences.
• Bunbury, J and K Gajewski. In press . Postglacial climates inferred from a lake at treeline, southwest Yukon Territory, Canada. Quaternary Science Reviews doi:10.1016/j.quascirev.2008.10.007
• Peros, M and K Gajewski. In press . Pollen-based reconstructions of late Holocene climate from the central and western Canadian Arctic. Journal of Paleolimnology doi: 10.1007/s10933-008-9256-9
• Viau, A and K Gajewski. In press. Reconstructing millennial-scale, regional paleoclimates of boreal Canada during the Holocene. Journal of Climate doi: 10.1175/2008JCLI2342.1

2008

• Gajewski, K. 2008 . The global pollen database in biogeographic and paleoclimate studies. Progress in Physical Geography 32: 379-402
• Peros, M, K Gajewski & A Viau. 2008 . Continental-scale tree population response to rapid climate change, competition and disturbance. Global Ecology and Biogeography 17: 658-669
• Finkelstein, S A and K Gajewski. 2008. Responses of Fragilarioid-dominated diatom assemblages in a small Arctic lake to Holocene climatic changes, Russell Island, Nunavut, Canada. Journal of Paleolimnology 40: 1079-1095. .
• Gajewski, K. 2008. Comment on “Abrupt environmental change in Canada's northernmost lake inferred from diatom and fossil pigment stratigraphy” by Dermott Antoniades et al. Geophysical Research Letters 35, L08701.
• Paull, T, P Hamilton, K Gajewski and M LeBlanc. 2008 . Numerical analysis of small Arctic diatoms (Bacillariophyceae) representing the Staurosira and Staurosirella species complexes . Phycologia 47: 213-224.
• Peros, M and K Gajewski. 2008. Testing the reliability of pollen-based diversity estimates. Journal of Paleolimnology 40: 357-368.
• Bunbury, J and K Gajewski. 2008. Does a one point sample adequately characterize the lake environment for paleoenvironmental calibration studies? Journal of Paleolimnology 39: 511-531.
• Peros, M and K Gajewski . 2008. Holocene climate and vegetation change on Victoria Island, western Canadian Arctic. Quaternary Science Reviews. 27: 235-249.

2007

• Finkelstein, S and K Gajewski. 2007. A paleolimnological record of diatom community dynamics and late Holocene climatic changes from Prescott Island, Nunavut, central Canadian Arctic. The Holocene 17: 803-812.
• Podritskie B and K Gajewski. 2007. Diatom community response to multiple scales of Holocene climate variability in a small lake on Victoria Island, NWT, Canada. Quaternary Science Reviews. 26: 3179-3196.
• Zabenskie, S and K Gajewski. 2007. Post-glacial climatic change on Boothia Peninsula, Nunavut, Canada. Quaternary Research doi:10.1016/j.yqres.2007.04.003.
• Viau, A and K Gajewski. 2007. Comment on "The magnitudes of millennial- and orbital-scale climatic change in eastern North America during the Late Quaternary" by Shuman et al., 2005. Quaternary Science Reviews 26:264-267. doi: 1016/j.quascirev.2006.07.010
• Watrin, J, A-M Lézine, J Gajewski and A Vincens. 2007. Pollen-plant-climate relations in Sub-Saharan Africa. Journal of Biogeography 34: 489-499. doi:10.1111/j.1365-2699.2006.01626.x.

2006

• Gajewski, K. 2006. Is Arctic palynology a "blunt instrument"? Géographie physique et Quaternaire. 60: 95-102.
• Zalatan, R and K Gajewski. 2006. A Salix -based dendroclimatic reconstruction of winter precipitation for the Kuujjua River area, Victoria Island, Arctic Canada. Tree Ring Research 62: 81-88 .
• Viau, A, K Gajewski, M Sawada and P Fines. 2006 . Mean-continental July temperature variability in North America during the past 14,000 years. Journal of Geophysical Research – Atmospheres 111, D09102, doi:10.1029/2005JD006031. (Click for data)
• Gajewski, K, A Viau, M Sawada, D Atkinson and P Fines. 2006 . Synchronicity in climate and vegetation transitions between Europe and North America during the Holocene. Climatic Change 78: 341-361. D OI: 10.1007/s10584-006-9048-z
• Barley, E, I Walker, J Kurek, L Cwynar, R Mathewes, K Gajewski and B Finney. 2006 . A northwest North American training set: distribution of freshwater midges in relation to air temperature and lake depth. Journal of Paleolimnology. DOI 10.1007/s10933-006-0014-6.
• Finkelstein, S, K Gajewski and A Viau. 2006 . Taxonomic resolution and the postglacial history of the forests of eastern North America: analysis from the NAPD. Journal of Ecology 94: 415-430 .

2005

• GAJEWSKI, K, G Bouchard, S Wilson, J Kurek and L Cwynar. 2005. Distribution of Chironomidae (Insecta: Diptera) head capsules in recent sediments of Canadian Arctic lakes. Hydrobiologia 549: 131-143. (click for data)
• Whitmore, J, K GAJEWSKI , M Sawada, JW Williams, T Minckley, B Shuman, PJ Bartlein, T Webb III, AE Viau, S Shafer, P Anderson, L Brubaker.2005. North American Modern Pollen Database for Multi-scale Paleoecological and Paleoclimatic Applications. Quaternary Science Reviews 24: 1828-1848. DOI: 10.1016/j.quascirev.2005.03.005 (click for data)
• Bunbury, J and K GAJEWSKI. 2005. Modern ostracode assemblages from the southwest Yukon. Hydrobiologia 545: 117-128. DOI: 10.1007/s10750-005-2746-0 . (click for data)
• Zalatan R and K GAJEWSKI. 2005. Tree-ring analysis of five Picea glauca -dominated sites from the interior boreal forest in the Shakwak Trench, Yukon Territory, Canada. Polar Geography 29: 1-16 . (click for data)

2004

• Wilson, S and K GAJEWSKI. 2004. Modern chironomid assemblages and their relationship to physical and chemical variables from southwest Yukon and northern British Columbia Lakes. Arctic, Antarctic and Alpine Research 36: 432-441. (click for data)
• Bouchard, G., K GAJEWSKI and P Hamilton. 2004. Biogeography of diatoms from the Canadian Arctic Archipelago. Journal of Biogeography 31:1955-1973 . (click for data)
• Leitner, R and K GAJEWSKI. 2004. Modern and Holocene stomate records of treeline variations in northwestern Québec. Canadian Journal of Botany 82: 726-734. (click for data)
• Leblanc, M, K GAJEWSKI and P Hamilton. 2004. A diatom-based Holocene paleoenvironmental record from a lake on the Boothia Peninsula, Nunavut, Canada. The Holocene 14: 423-431. (click for data) .
• Kauffman, D, TA Ager, NJ Anderson, PM Anderson, JT Andrews, PJ Bartlein, LB Brubaker, LL Coats, LC Cwynar, ML Duvall, AS Dyke, ME Edwards, WR Eisner, K GAJEWSKI, A Geirsdóttir, FS Hu, AE Jennings, MR Kaplan, MW Kerwin, AV Lozhkin, GM MacDonald, GH Miller, CJ Mock, WW Oswald, BL Otto-Bliesner, DF Porinchu, K Rühland, JP Smol, EJ Steig, and BB Wolfe (PARCS working group). 2004. Holocene thermal maximum in the western Arctic (0o to 180oW) Quaternary Science Reviews 23:529-560.
• Sawada, M, A Viau, G Vettoretti, W R Peltier and K GAJEWSKI. 2004. Paleoclimate model-data comparison for 6ka. Quaternary Science Reviews 23: 225-244.

2003

• Bigelow, N, L Brubaker, M Edwards, S Harrison, I Prentice, P Anderson, A Andreev, P Bartlein, T Christensen, W Cramer, J Kaplan, A Lozhkin, N Matveyeva, D Murray, A McGuire, V Razzhiven, J Ritchie, B Smith, D Walker, K GAJEWSKI, V Wolf, B Holmqvist, Y Igarashi, K Kremenetskii, A Paus, M Pisaric and V Volkova. 2003. Climate change and arctic ecosystems 1. Vegetation changes north of 55oN between the last glacial maximum, mid-Holocene and present. Journal of Geophysical Research. 108 (D19) 8170
• GAJEWSKI, K and D Atkinson. 2003. Climate change in the Canadian Arctic. Environmental Reviews 11: 69-102.
• Sawada, M, A Viau and K GAJEWSKI. 2003. The biogeography of aquatic macrophytes in North America since the last glacial maximum. Journal of Biogeography 30: 999-1017 .

2002

• GAJEWSKI, K. 2002. Modern pollen deposition in lake sediments from the Canadian Arctic. Arctic, Antarctic and Alpine Research 34:26-32. (Click here for data)
• Atkinson, D and K GAJEWSKI. 2002 High-resolution estimation of surface air temperature in the Canadian High Arctic Journal of Climatology 15: 3601-3614.
• Ponadar, K, R Pienitz, W Vincent and K GAJEWSKI. 2002. Limnological conditions in a subarctic lake (northern Québec, Canada) during the late Holocene: analyses based on fossil diatoms. Journal of Paleolimnology 27: 353-366 .
• Wilson, S and K GAJEWSKI. 2002. Surface sediment diatom assemblages and water chemistry from 42 subarctic lakes in the southwestern Yukon and northern British Columbia, Canada. Ecoscience 9: 256-270. (Click here for data) (high res) (low res)
• Viau, A, K GAJEWSKI, P Fines, D Atkinson and M Sawada. 2002. Terrestrial evidence for a 1500-yr cycle in Holocene climates. Geology 30:455-458.
• Carcaillet C, H Almquist, H Asnong, RHW Bradshaw, JS Carrión, K GAJEWSKI, JN Haas, SG Haberle, P Hadorn, BV Odgaard, PJH Richard, I Richoz, MF Sánchez Goñi, H von Stedingk, AC Stevenson, B Talon, C Tardy, W Tinner, E Tryterud, L Wick, KJ Willis.2002 . Holocene fires and global dynamic of carbon-cycle. Chemosphere 49: 845-863 .
• GAJEWSKI, K, A-M Lezine, A Vincens, A Delestan, M Sawada and APD members. 2002. Climate-vegetation-pollen relations in Africa and adjacent areas. Quaternary Science Reviews. 21: 1611-1631.

2001

• Viau, A and K GAJEWSKI. 2001. Holocene variations in the global hydrological cycle quantified by objective gridding of lake level databases. Journal of Geophysical Research 106:31703-31716. (Click here for data and maps)
• Hamilton, P, K GAJEWSKI, D Atkinson and D Lean. 2001. Physical and chemical limnology of lakes from the Canadian Arctic Archipelago. Hydrobiologia 457:133-148. (Click here for data)
• GAJEWSKI, K and M Frappier. 2001. Postglacial environmental history from Prince of Wales Island, Nunavut, Canada. Boreas 30: 485-489. (Click here for data)
• GAJEWSKI, K, A Viau, M Sawada, D Atkinson and S Wilson. 2001. Sphagnum distribution in North America and Eurasia during the past 21 000 years. Global Biogeochemical Cycles 15: 297-310. (Click here for data and maps)
• Bourgeois, J, K GAJEWSKI and R Koerner. 2001. Spatial patterns of pollen deposition in arctic snow. Journal of Geophysical Research Atmospheres 106(D6): 5255-5266 .

2000

• Atkinson, D., B. Alt and K. GAJEWSKI. 2000. A new database of high arctic climate data from the Polar Continental Shelf Project archives. Bulletin of the American Meteorological Society 81: 2621-2629. (go to the PCSP database)
• Bourgeois, J., R. Koerner, K. GAJEWSKI and D. Fisher. 2000. A Holocene ice core pollen record from Ellesmere Island, Nunavut, Canada. Quaternary Research. 54: 275-283.
• GAJEWSKI, K., R. Vance, M. Sawada, I. Fung, L.D. Gignac, L. Halsey, J. John, P. Maisongrande, P. Mandell, P. Mudie, P. Richard, A. Sherrin, J. Soroko and D. Vitt. 2000. The climate of North America and adjacent ocean waters ca. 6ka. Canadian Journal of Earth Sciences. 37: 661-681. (Click here for figures)
• GAJEWSKI, K., R.J. Mott., J.C. Ritchie and K. Hadden. 2000. Holocene vegetation history of Banks Island, Northwest Territories, Canada. Canadian Journal of Botany. 78:430-436. (Click here for data)
• Lacourse, T. and K. GAJEWSKI. 2000. Late Quaternary vegetation history of Sulphur Lake, southwest Yukon Territory, Canada. Arctic 53:27-35. (Click here for data)

1995-1999

• Sawada, M., K. GAJEWSKI, A. deVernal and P. Richard. 1999. Comparison of marine and terrestrial Holocene climates in eastern North America. The Holocene 9:267-278.
• GAJEWSKI, K. 1998. Climate changes of the last millenium reconstructed from high resolution pollen records. In: D. MacIver and R. Meyer, eds. Climate variations and biodiversity change during the last millennium. Proceedings of the workshop on decoding Canada's environmental past (click for a copy of this paper).
• GAJEWSKI, K., P. Hamilton and R. McNeely. 1997. A high-resolution proxy-climate record from an arctic lake with annually-laminated sediments on Devon Island, Nunavut, Canada. Journal of paleolimnology 17:215-225. (click for data)
• GAJEWSKI, K., S. Garralla and V. Milot-Roy. 1996. Postglacial vegetation at the northern limit of lichen woodland in northwestern Québec. Géographie physique et Quaternaire 50:341-350.(Click here for data)
• GAJEWSKI, K., M. Garneau and J.C. Bourgeois. 1995. Paleoenvironments of the Canadian High Arctic derived from pollen and plant macrofossils: problems and potentials. Quaternary Science Reviews 14:609-629. (Click here for data)
• GAJEWSKI, K. 1995. Modern and Holocene pollen accumulation in some small arctic lakes from Somerset Island, N.W.T., Canada. Quaternary Research 44:228-236. (Click here for data)

1990-1993

• GAJEWSKI, K., S. Payette et J.C. Ritchie. 1993. Holocene vegetation history at the boreal forest-shrub tundra transition in northern Québec. Journal of Ecology 81:433-443. (Click here for data)
• GAJEWSKI, K. 1993. The role of paleoecology in the study of global climatic change. Review of palaeobotany and palynology 79:141-151.
• GAJEWSKI, K. et S. Garralla. 1992. Holocene vegetation histories from three sites in the tundra of northwestern Québec, Canada. Arctic and Alpine Research 24:329-336. (Click here for data)
• S. Garralla et K. GAJEWSKI. 1992. Holocene vegetation history of the boreal forest near Chibougamau, central Québec. Canadian Journal of Botany 70:1364-1368. (Click here for data)
• G. MacDonald et K. GAJEWSKI. 1992. The northern treeline of Canada. dans: Geographical snapshots of North America, D. Janelle, ed. Guilford Press. pp 34-37.
• GAJEWSKI, K. 1991. Représentation pollinique actuelle à la limite des arbres au Nouveau Québec. Journal canadien des sciences de la Terre 28:643-648. (Click here for data)
• P. Anderson, P. Bartlein, L. Brubaker, K. GAJEWSKI, et J. Ritchie. (ordre alphabétique). 1991. Vegetation-pollen-climate relationships for the Arcto-Boreal region of North America and Greenland. Journal of Biogeography 18:565-582.
• S. Arquillière, L. Filion, K. GAJEWSKI, et C. Cloutier. 1990. A dendroecological analysis of eastern larch (Larix laricina (Du Roi) K. Koch) in subarctic Québec. Canadian Journal of Forest Research 20:1312-1319.

1985-1989

• P. Anderson, P. Bartlein, L. Brubaker, K. GAJEWSKI, et J. Ritchie. (ordre alphabétique). 1989. Modern analogues of Late-Quaternary pollen spectra from the western Interior of North America. Journal of Biogeography 16:573-596.
• GAJEWSKI, K. 1988. Late-Holocene climates of eastern North America estimated from pollen data. Quaternary Research 29:255-262.
• GAJEWSKI, K. 1987. Climatic impacts on the vegetation of eastern North America for the past 2000 years. Vegetatio 68:179-190.
• GAJEWSKI, K. 1987. Environmental history of Caribou Bog, Penobscot Co., Maine. Naturaliste canadien 114(2):133-140.
• GAJEWSKI, K., A.M. Swain et G.M. Peterson. 1987. Late-Holocene vegetation changes in northeastern United States. Géographie physique et quaternaire 41(3):377-386.
• J.C. Ritchie, K. Hadden et K. GAJEWSKI. 1987. Modern pollen assemblages from the high arctic of western Canada. Canadian Journal of Botany 68(8):1605-1613. (Click here for data)
• GAJEWSKI, K., M. Winkler et A.M. Swain. 1985. Vegetation and fire history from three lakes with varved sediments in northwestern Wisconsin (U.S.A.). Review of paleobotany and palynology 44:277-292.

Book chapters and conference proceedings

• GAJEWSKI, K and GM MacDonald. 2005. Palynology of Arctic Lakes. In: R Pienitz, M Douglas and J Smol. Long-term environmental change in Arctic and Antarctic Lakes. Kluwer.
• GAJEWSKI, K. 2004. Treeline. In: Encyclopaedia of the Arctic. Fitzroy Dearborn.
• GAJEWSKI, K. 2004. Treeline dynamics. In: Encyclopaedia of the Arctic. Fitzroy Dearborn.
• GAJEWSKI, K. 2004. Holocene. In: Encyclopaedia of the Arctic. Fitzroy Dearborn.
• GAJEWSKI, K. 2004. Quaternary paleoclimatology. In: Encyclopaedia of the Arctic. Fitzroy Dearborn.
• GAJEWSKI, K. 2004. Prince of Wales Island. In: Encyclopaedia of the Arctic. Fitzroy Dearborn.
• Hamilton, P, K GAJEWSKI, R McNeely and DRS Lean. 2000. Physical-chemical and biological characteristics of lakes form the Slidre River Basin on the Fosheim Peninsula. Pp 235-248 in: M Garneau and B Alt, eds. Environmental response to climate change in the Canadian High arctic. Geological Survey of Canada Bulletin 529.
• MacDonald, G and K GAJEWSKI. 1992. The northern treeline of Canada. in: Geographical snapshots of North America , D. Janelle, ed. Guilford Press. pp 34-37.
• Sawada, M., A Viau and K GAJEWSKI. 2001. Critical thresholds of dissimilarity in the modern analog technique (MAT) for quantitative paleoclimate reconstruction. 1 st International Conference on Global warming and the next Ice Age : 149-152
• GAJEWSKI, K. 2000. Climate of the last millennium in eastern North America and impacts on the vegetation. Prace Geograficzne 107:101-105.
• Viau, A and K GAJEWSKI. 2000.Global Hydrological change at 6ka using gridded lake-level data. 3 rd PMIP conference, St Michel des Monts. In: Braconnot, P, ed. Paleoclimate Modelling Intercomparison Project (PMIP). Proceedings of the Third PMIP workshop, Canada, 4-8 October 1999. WCRP-111, WMO/TD-No. 1007 271 pp.
• GAJEWSKI, K. 1998. Climate changes of the past millennium reconstructed from high-resolution pollen records. In: MacIver, D and R. Meyer, eds. Climate variations and biodiversity change during the last millennium. Proceedings of the workshop on decoding Canada's environmental past . Environment Canada.
• Glen MacDonald and K GAJEWSKI. 1992. Ecology and paleoecology of the northern treeline. In: Woo, Ming-ko et Dennis Gregor. Arctic Environment: past, present and future. Proceeding of a symposium held at McMaster University, November 14-15, 1991.

Recent Posters and Presentations (post 2000)

See the poster page for copies of some of these.

2008

• Gajewski, K. 2008. Holocene climatic change in the Canadian Arctic Islands. Polar Continental Shelf Project Advisory Board Annual Meeting . Ottawa.
• Gajewski, K, S Finkelstein, M Peros, M-C Fortin and T Paull. 2008. Spatial patterns of Holocene paleoclimate change in the Canadian Arctic Islands. Arctic Change 2008 . Quebec City.
• Peros, M, K Gajewski. T Paull, R Ravindra and B Podritske. 2008 . Late Glacial and Holocene Environments of South-Central Melville Islands, Northwest Territories, Canada. American Geophysical Union, Fall 2008 Meeting. San Francisco.
• Bunbury, J and K Gajewski. 2008 . Climate variability at a lake at treeline, southwest Yukon Territory. Frontiers in Research - the Disappearing North . Ottawa.
• Bunbury, J and K Gajewski. 2008 . Biogeography of freshwater ostracods in the Canadian Arctic. Frontiers in Research - the Disappearing North . Ottawa.
• Fortin, M-C and K Gajewski. 2008 . Calibrating sediment production indices in Arctic lakes. Frontiers in Research - the Disappearing North . Ottawa.
• Fortin, M-C and K Gajewski . 2008 . Holocene climate variability and effect on ecosystem production in northern Victoria Island, Nunavut. Frontiers in Research - the Disappearing North. Ottawa.
• Paull, T and K Gajewski. 2008 . Diatoms as paleoenvironmental indicators at Lake RS29, Somerset Island, Nunavut, Canada. Frontiers in Research - the Disappearing North. Ottawa.
• Mustaphi-Courtney, C and K Gajewski. 2008 . Analysis of laminated sediments from Lake DV09, northern Devon Island, Nunavut, Canada. Frontiers in Research - the Disappearing North. Ottawa.
• Ravindra, R and K Gajewski. 2008. Hydroclimatic variability inferred from lake sediments from the Aishihik Region, Southwest Yukon. Frontiers in Research - the Disappearing North. Ottawa.
• Peros, M, K Gajewski, T Paull, R Ravindra, and B Podritske. 2008. Multi-proxy record of postglacial environmental change, south-central Melville Island, NWT, Canada. Frontiers in Research - the Disappearing North. Ottawa.
• Ladd, M and K Gajewski. 2008. The July Arctic front in North America from ECMWF ERA-40 and NCEP/NCAR Reanalysis products. Frontiers in Research - the Disappearing North. Ottawa.
• Ladd, M and K Gajewski. 2008. Maximum July temperatures from northern Canadian weather stations. Frontiers in Research - the Disappearing North. Ottawa.
• Viau, A, K Gajewski, M Peros and J Bunbury. 2008 . Holocene terrestrial climate variability in the Canadian North. CMOS 2008 Congress . Kelowna.
• Bunbury, J and K Gajewski. 2008 . Holocene paleoenvironments inferred from a lake at treeline, southwest Yukon Territory, Canada. Association of American Geographers 2008 Annual Meeting . Boston.
• Peros, M and K Gajewski. 2008 . Holocene climate cyclicity recorded in productivity indicators from a small Arctic lake. Association of American Geographers 2008 Annual Meeting . Boston.

2007

• Gajewski, K. 2007. Cambios climáticos y los efectos sobre glaciares en el Ártico candanse. Foro Bicentenario: Desafíos de los cambios climáticos para Chile, Antártica y sus glaciares. Valdivia, Chile. INVITED.
• Gajewski, K. 2007.Arctic and Alpine Climate Change. Presentation at the Taller de trabajo: "Iniciativa de colaboración glaciológica Chile-Canadá". Valdivia, Chile. INVITED.
• Gajewski, K, B Podritske, M Peros, S Zabenskie, S Finkelstein, M-C Fortin, T Paull, C Mustaphi-Courtney and A Viau. 2007. Postglacial paleoenvironmental variability across the Canadian Arctic. 30th Congress of the International Association of Theoretical and Applied Limnology. Montreal.
• Paull, T, P Hamilton, K Gajewski and M LeBlanc. 2007. Numerical analysis of small Arctic diatoms (Bacillariophyceae) representing the Staurosira and Staurosirella species complexes. 30th Congress of the International Association of Theoretical and Applied Limnology. Montreal.
• Fortin, M-C and K Gajewski. 2007. Chironomid-based paleoenvironmental reconstruction spanning the Holocene in northern Victoria Island in the Canadian Arctic. 30th Congress of the International Association of Theoretical and Applied Limnology. Montreal.
• Courtney-Mustaphi, C and K Gajewski. 2007 . Annually laminated sediment from a lake Devon Island; implications for paleoclimatic inferences CANQUA 2007 Congress . Ottawa.
• Bunbury, J and K Gajewski. 2007 . Aquatic and terrestrial ecosystem response to Holocene climatic change inferred from lake sediments, southwest Yukon Territory. CANQUA 2007 Congress . Ottawa.
• Fortin, M-C and K Gajewski. 2007 . Biogenic Silica Profiles spanning the Holocene for Two Canadian Arctic Lakes from Victoria Island. CANQUA 2007 Congress . Ottawa.
• Ravindra, R and K Gajewski. 2007 . Analysis of the postglacial history of tree and shrub birch at treeline in northwestern Quebec using Betula grain-size statistics. CANQUA 2007 Congress . Ottawa.
• Brisebois, S and K Gajewski. 2007 . Recent vegetation change at treeline in northwestern Québec. CANQUA 2007 Congress . Ottawa
• Gajewski, K and A Viau. 2007 . Pollen databases in paleoenvironmental reconstructions. CANQUA 2007 Congress . Ottawa.
• Peros, M and K Gajewski. 2007 . Pollen records of late Holocene climate and vegetation changes from the Canadian Arctic. CANQUA 2007 Congress . Ottawa
• Peros, M and K Gajewski. 2007 . Holocene climate and vegetation change on Victoria Island, western Canadian Arctic. CMOS, CGU, AMS Joint Congress . St John's, Nfld.
• Gajewski, K, A Viau, M Peros and M Ladd. 2007 . Paleoclimates of northern Canada - a synthesis. CMOS, CGU, AMS Joint Congress . St John's, Nfld
• Viau, A and K Gajewski. 2007 . Reconstructing high-latitude climate variability in North America during the Holocene using pollen data: How well do these compare to high-resolution multi-proxy records? CMOS, CGU, AMS Joint Congress . St John's, Nfld
• Fortin, M-C and K Gajewski. 2007 . Chironomid-based paleoenvironmental study of a lacustrine sediment core spanning the Holocene for Western Victoria Island in the Canadian Arctic Islands. 37 th Arctic Workshop. Skaftafell, Iceland .
• Finkelstein, S and K Gajewski. 2007 . Diatom community dynamics in a Fragilaroid-dominated Holocene paleolimnological record from Russell Island in the central Canadian Arctic Archipelago. 2007 Annual meeting, American Association of Geographers . San Francisco.
• Gajewski, K. 2007 . Climate Change: A review of the science. Statistical Society of Ottawa. 2007 Symposium and Workshop . Ottawa.
• Watrin, J, A-M Lézine, K Gajewski A Vincens and A Ben-Hen. 2007 . Pollen-plant-climate relations in Sub-Saharan Africa. European Geophysical Union Meeting . Vienna.

2006

• Viau, A and K Gajewski. 2006 . Holocene climate variability: interactions between orbital and century to millennial-scale climate forcing. 2006 Fall Meeting, American Geophysical Union . San Francisco.
• Bunbury, J, A Viau, K Gajewski and M Peros. 2006 . Regional climate change in northern North America during the Holocene. 2006 Fall Meeting, American Geophysical Union . San Francisco.
• Peros, M, K Gajewski and A Viau. 2006 . Rapid continental-scale vegetation response to the Younger Dryas Cool Episode. 2006 Fall Meeting, American Geophysical Union . San Francisco.
• Finkelstein,S, K Gajewski, M Peros, B Podritske, S Zabenskie, M-C Fortin, T Paull, A Viau. 2006 . High-resolution paleoclimate reconstructions of the Canadian Arctic. 2006 Fall Meeting, American Geophysical Union . San Francisco.
• Gajewski, K and A Viau. 2006 . Climate variability in North America during the past 2,000 years using pollen data. 2006 Fall Meeting, American Geophysical Union . San Francisco.
• Finkelstein, S., K Gajewski and B Podritske. 2006. Holocene records of diatom diversity, productivity and climatic change from Arctic lakes. 91 st Annual Meeting of the Ecological Society of America, Memphis.
• Gajewski, K, S Finkelstein, M Peros, B Podritske, S Zabenskie, J Bunbury, M-C Fortin and A Viau. 2006. Postglacial climates of the Canadian Arctic. 40 th Annual Canadian Meteorological and Oceanographic Society Congress. Toronto.
• Viau, A and K Gajewski. 2006 . Towards reconstructing circum-Arctic river discharge using tree-ring data: results from the MacKenzie River Basin. Joint Annual Meeting of the Geological Association of Canada and the Mineralogical Association of Canada . Montreal.
• Viau, A, K Gajewski, DE Atkinson and P Fines. 2006 . Detecting Holocene and Late Glacial climate variability in North America using 3-dimensional principal components analysis on pollen data. Joint Annual Meeting of the Geological Association of Canada and the Mineralogical Association of Canada . Montreal.
• Peros, M, B Podritske, S Zabenskie, S Finkelstein, K Gajewski and A Viau. 2006. High resolution records of Holocene environmental change from the western and central Canadian Arctic. Joint Annual Meeting of the Geological Association of Canada and the Mineralogical Association of Canada . Montreal.
• Zabenskie, S and K Gajewski. 2006 . Post-glacial climate change on Boothia Peninsula, Nunavut, Canada. 36 th International Arctic Workshop . Boulder.
• Gajewski, K S Finkelstein, B Podritske, S Zabenskie, M Peros, J Bunbury, M-C Fortin. 2006 . Postglacial climates of the Canadian Arctic from lake sediment cores. 2006 Annual Meeting, Association of American Geographers. Chicago.
• Finkelstein, S and K Gajewski. 2006 . A high-resolution paleolimnological record of long-term variability in diatom diversity and productivity, Prescott Island, Nunavut, central Canadian Arctic. 2006 Annual Meeting, Association of American Geographers . Chicago.

2005

• Finkelstein, S, K GAJEWSKI & A Viau. 2005. Taxonomic resolution and the postglacial history of the forests of eastern North America : Analysis from the North American Pollen Database. Ecological Society of America Annual Meeting. Montreal.
• Podritske, B and K GAJEWSKI. 2005. A high-resolution diatom-based Holocene paleoenvironmental reconstruction from the western Canadian Arctic . Ecological Society of America Annual Meeting. Montreal.
• GAJEWSKI, K. 2005. Chironomid studies at the University of Ottawa . Dead Heads 2005 – midge workshop. Kelowna.
• Viau, A, K. GAJEWSKI, M.C. Sawada, and J. Bunbury 2005. Climate variability in Beringia during the past 25,000 years. Conference on Rapid Landscape Change and Human Response in the Arctic and Sub-Arctic. Whitehorse.
• Bunbury, J and K GAJEWSKI. 2005. Holocene climate change in northern Canada and Alaska . Conference on Rapid Landscape Change and Human Response in the Arctic and Sub-Arctic. Whitehorse.
• GAJEWSKI, K. 2005. Dynamique de la végétation en Amérique du Nord depuis la dernière glaciation . Séminaires interdisciplinaires du doctorat en Sciences de l'environnement UQAM, Montreal (invited). Watrin, J, AM Lézine, K Gajewski and A Vincens. 2005. Pollen-Plant-Climate relation in Sub-Saharan Africa. 16th South African Society for Quaternary Research Meeting. Bloemfontein .

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