Abstract
Acute ecological changes in North American boreal forests in this century are attributed to an array of factors including human activities. In the Quetico-Superior Ecotone of Northwest Ontario and Northern Minnesota warmer, drier climate conditions since mid-century have concurred with extensive manipulation of regional forests by fire suppression and clear-cut logging. Predicted effects of climate changes expected for the next century could compete with transformations in these systems over the past ∼ 10 000 yr. The degree of alteration of natural processes and patterns in North American boreal forests requires implementation of realistic strategies to ensure that sufficiently large tracts of these systems maintain their natural integrity.
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Bisset, A. R., McKay, F., Smith, P. and Voigt, D. R.: 1989, ‘Snow in Ontario: a synthesis of snow course data, 1952–87, North Central Region’, Ontario Ministry of Natural Resources Report.
Birks, H. J. and Birks H. H.: 1980, Quaternary Paleoecology, Edward Arnold, London, pp. 289.
Bjorck, S.: 1985, ‘Deglaciation chronology and revegetation in northwestern Ontario’, CanadianJournal of Earth Sciences 22, 850–871.
Brumelis, G. and Carleton, T. J.: 1989, ‘The vegetation of post-logged black spruce lowlands in central Canada’, J. of Applied Ecology 26, 321–329.
Bryson, R. A. and Hare, F. K.: 1974, ‘Climates of North America’, World Survey of Climatology, VolII, Elsevier, New York.
Carleton, T. J.: 1995, ‘More than a change of heart is needed to preserve the forest’, Globe and Mail, July 28, 1995, Toronto.
Carpenter, S. R., Chisholm, S.W., Krebs, C. J., Schindler D.W. and Wright, R. F.: 1995, ‘Ecosystem Experiments’ Science, 269, 324–327.
Clark, J. S.: 1989, ‘Effects of long-term water balance on fire regime, Northwestern Minnesota’, J.of Ecology 77, 989–1004.
Cumming, H. G. and Beange, D. B.: 1993, ‘Survival of woodland caribou in commercial forests of northern Ontario’, The Forestry Chronicle 69, 579–588.
Day, R. J.: 1990, ‘The Dynamic Nature of Ontario's Forests from Post-Glacial Times to the Present Day’, in: Old Growth Forests, University of Toronto Press, Toronto, pp. 63–122.
Davis, M. B.: 1989, ‘Lags in vegetation response to greenhouse warming’, Climatic Change 15, 75–82.
Delcourt, P. A. and Delcourt, H. R.: 1987, Long-term Forest Dynamics of the Temperate Zone, Springer-Verlag, Berlin and New York, pp. 439.
Emmanuel, W. R., Shugart, H. H. and Stevenson, M. P.: 1985, ‘Climatic change and the broad-scale distribution of terrestrial ecosystem complexes’, Climatic Change 7, 31–43.
Farmer, R. E.: 1993, ‘Latitudinal variation in height and phenology of balsam poplar’, Silvae Genetica 42(2–3), 148–153.
Fritts, H. C.: 1976, Tree Rings and Climate, Academic Press, New York, pp. 567.
Hansen A. J. and di Castri, F.: 1992, Landscape Boundaries, Ecological Studies, 92, Springer-Verlag, New York.
Heinselman, M. L.: 1973, ‘Fire in the virgin forest of the Boundary Waters Canoe Area, Minnesota’, Quaternary Research 3, 329–382.
Houghton, R. A. and Woodwell, G. M.: 1989, ‘Global climatic change’, Scientific American 260, 36–44.
Ip, D. W.: 1992, ‘Detection and Assessment of Armillaria in Young Conifer Plantations of North-western Ontario and Northeastern China’, M.Sc. Thesis, Lakehead University, Thunder Bay, Canada.
Intergovernmental Panel on Climate Change (IPCC): 1990, Climate Change, Report of Working Group I, J. T. Houghton et al. (eds.), Cambridge University Press.
Intergovernmental Panel on Climate Change (IPCC): 1996, Climate Change 1995, Volume I, The science of climate change, Report of Working Group I, J. T. Houghton et al. (eds.), Cambridge University Press.
Jacoby G. C. and D'Arrigo, R. D.: 1995, ‘Tree ring width and density evidence of climatic and potential forest change in Alaska’, Global Biogeochemical Cycles 9, 227–234.
Julig, P. J.: 1988, ‘The Cummins Site Complex and Paleoindian Occupation in the Northwestern Lake Superior Region’, Ph.D. Thesis, University of Toronto, Toronto.
Kronberg, B. I.: 1993, ‘Response of Major North American Ecosystems to Global Change: A Biogeochemical Perspective’, in: H. A. Mooney, E. Fuentes, B. I. Kronberg (eds.), Earth SystemResponses to Global Change - Contrasts between North and South America, Academic Press, pp. 121–129.
Liu, K.-B.: 1990, ‘Holocene Paleoecology of the Boreal Forest and Great Lakes - Saint Lawrence Forest in Northern Ontario’, Ecological Monographs 60(2), 179–212.
Lower, A. R. M.: 1938, The North American Assault on the Canadian Forest: A History of the LumberTrade Between Canada and the United States, Ryerson Press, Toronto, pp. 377.
Lower, A. R. M.: 1973, Great Britain's Woodyard: British America and the Timber Trade 1763–1867, McGill-Queen's University Press, Montreal, pp. 271.
Manabe, S. and Wetherald, R. T.: 1986, ‘Reduction in summer soil wetness induced by an increase in atmospheric carbon dioxide’, Science 232, 626–628.
McAndrews, J. H.: 1986, ‘12 000 years of change’, Thunder Bay Naturalist Association Newsletter, March 1986, pp. 2–7.
Ontario Ministry of Natural Resources (OMNR): 1992, ‘Digital Mosaic of Landsat TM Data’, Ontario Forest Research Institute, Sault Ste. Marie, Ontario, Canada.
Overpeck, J. T., Rind, D. and Goldberg, R.: 1990, ‘Climate-induced changes in forest disturbance and vegetation’, Nature 33, 51–53.
Overpeck, J. T., Bartlein, P. J. and Webb, T.: 1991, ‘Potential magnitude of future vegetation change in eastern North America: comparison with the past’, Science 254, 692–695.
Pastor, J. and Post, W.M.: 1988, ‘Responses of northern forests to CO2-induced climate change’, Nature 334, 55–57.
Pickett, S. T. A. and Cadenasso, M. L.: 1995, ‘Landscape ecology: spatial heterogeneity in ecological systems’, Science 269, 331–334.
Potzger, J. E.: 1953, ‘History of Forests in the Quetico-Superior Country from Fossil Pollen Studies’, Journal of Forestry August 1953.
Polischuk, S.: 1992, ‘Palynological Evidence for Past Climate Changes, Barclay's Bog, Northwestern Ontario’, Hon. B.Sc Thesis, Lakehead University, Thunder Bay, Canada.
Ritchie, J. C.: 1966, ‘Aspects of the Late-Pleistocene History of the Canadian Flora’, in: R. L. Taylor and R. A. Ludwig (eds.), The Evolution of Canada's Flora, University of Toronto Press, pp. 66–79.
Ritchie, J. C.: 1987, Postglacial Vegetation of Canada, Cambridge University Press, Cambridge, UK, pp. 177.
Rizzo, B. and Wiken, E.: 1992, ‘Assessing the sensitivity of Canada's Ecosystems to climatic change’, Climatic Change 21, 37–55.
Romme, W. H. and Despain, D. G.: 1989, ‘Historical perspective on Yellowstone fires of 1988’, BioScience 39, 695–699.
Rowe, J. S.: 1994, ‘A new paradigm for forestry’, The Forestry Chronicle 70, 565–567.
Royal Society of Canada: 1995, ‘Looking ahead: long-term ecological research and monitoring in Canada’, Technical Report 95–1, Royal Society of Canada, Ottawa, pp. 44.
Schindler D. W., Curtis, P. J., Parker, B. R. and Stainton, M. P.: 1996, ‘Consequences of climatie warming and lake acidification for UV-B penetration in North American boreal lakes’, Nature 379, 705–708.
Schindler D.W., Beaty, K. G., Fee, E. J., Cruickshank, D. R., DeBruyn, E. R., Findlay, D. L., Linsey, G. A., Shearer, J. A., Stainton, M. R. and Turner, M. A.: 1990, ‘Effects of climatic warming on lakes of the central boreal forest’, Science 250, 967–970.
Suffling, R.: 1990, ‘Wildland fire management and landscape diversity in the boreal forest of Northwestern Ontario during an era of climatic warming’, in: Fire and Environment: Ecologicaland Cultural Perspectives, USDA (Southeastern Forest Experiment Station), General Technical Report SE-69.
Suffling, R.: 1992, ‘Climate change and boreal forest fires in Fennoscandia and Central Canada’, in: M. Boer and E. Koster (eds.), Greenhouse Impact on Cold-Climate Ecosystem and Landscapes, Catena supplement 22, 111–132.
Swain, A. M.: 1973, ‘A history of fire and vegetation in northeastern Minnesota as recorded by lake sediments’, Quarternary Research 3, 383–396.
Thornwaite, C. W. and Mather, J. R.: 1957, ‘Instructions and table for computing potential evapo-transpiration and the water balance’, Publ. Climatol. 8(3).
Urban, D. L., O'Neill, R. V. and Shugart, H. H.: 1987, ‘Landscape ecology’, BioScience 37, 119–127.
Vitousek, P. M. and Matson, P. A.: 1984, ‘Mechanisms of nitrogen retention in forest ecosystems: a field experiment’, Science 225, 51–52.
Walshe, S.: 1980, Plants of Quetico and the Ontario Shield, University of Toronto Press, pp. 152.
Watt, M. J.: 1992, ‘Climate Change and Tree Ring Investigations in the Quetico Superior Ecotone’, M.Sc. Thesis, Lakehead University, Thunder Bay, Canada.
Webb, T.: 1986, ‘Vegetational change in eastern North America from18 000 to 500 yr BP’, in: Climate VegetationInteractions, Proceedings of a workshop NASA/GSFC. Office for Interdisciplinary Earth Studies, University Corporation for Atmospheric Research, Boulder, Colorado pp. 692–695.
Wright, H. E.: 1984, ‘Sensitivity and response time of natural systems to climatic changes in the Late Quaternary’, Quat. Sci. Rev. 3, 91–131.
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Kronberg, B.I., Watt, M.J. & Polischuk, S.C. Forest-Climate Interactions in the Quetico-Superior Ecotone (Northwest Ontario and Northern Minnesota). Environ Monit Assess 50, 173–187 (1998). https://doi.org/10.1023/A:1005736619158
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DOI: https://doi.org/10.1023/A:1005736619158