Abstract
Vegetation records spanning the past 21 kyr in western North America display spatial patterns of change that reflect the influence of variations in the large-scale controls of climate1. Among these controls are millennial-scale variations in the seasonal cycle of insolation and the size of the ice sheet, which affect regional climates directly through changes in temperature and net radiation, and indirectly by shifting atmospheric circulation. Longer vegetation records provide an opportunity to examine the regional response to different combinations of these large-scale controls, and whether non-climatic controls are important. But most of the longer North American records2,3 are of insufficient quality to allow a robust test, and the long European records4,5,6,7,8,9 are in regions where the vegetation response to climate is often difficult to separate from the response to ecological and anthropogenic controls. Here we present a 125-kyr record of vegetation and climate change for the forest/steppe border of the eastern Cascade Range, northwest America. Pollen data disclose alternations of forest and steppe that are consistent with variations in summer insolation and global ice-volume, and vegetational transitions correlate well with the marine isotope-stage boundaries. The close relationship between vegetation and climate beyond the Last Glacial Maximum provides evidence that climate variations are the primary cause of regional vegetation change on millennial timescales, and that non-climatic controls are secondary.
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References
Thompson, R. E., Whitlock, C., Bartlein, P. J., Harrison, S. & Spaulding, W. G. in Global Climates since the Last Glacial Maximum(eds Wright, H. E. Jr et al.) 468–513 (Univ. Minnesota, Minneapolis, (1993)).
Heusser, L. E. & King, J. E. in Vegetation History(eds Huntley, B. & Webb, T.) 193–236 (Kluwer, Dordrecht, (1988)).
Adam, D. P. Correlations of the Clear Lake, California, core CL-73-7 pollen sequence with other climate records. Geol. Soc. Am. Spec. Pap. 214, 81–96 (1988).
Watts, W. A. in Vegetation History(eds Huntley, B. & Webb, T.) 155–192 (Kluwer, Dordrecht, (1988)).
Watts, W. A., Allen, J. R. M. & Huntley, B. Vegetation history and paleoclimate of the last glacial-interglacial period at Lago Grande di Monticchio, southern Italy. Quat. Sci. Rev. 15, 113–154 (1996).
Pons, A., Guiot, J., de Beaulieu, J. L. & Reille, M. Recent contributions to the climatology of the last glacial interglacial cycle based on French pollen sequences. Quat. Sci. Rev. 11, 439–448 (1992).
Guiot, J., Pons, A., de Beaulieu, J. L. & Reille, M. A140,000-year continental climate reconstruction from two European pollen records. Nature 338, 309–313 (1989).
Tzekadis, P. C., Bennett, K. D. & Magri, D. Climate and the pollen record. Nature 370, 513 (1994).
Tzekadis, P. C. & Bennett, K. D. Interglacial vegetation succession: a view from southern Europe. Quat. Sci. Rev. 14, 967–982 (1995).
Huntley, B. & Webb, T. Vegetation History(Kluwer, Dordrecht, (1988)).
Wright, H. E. J et al. Global Climates since the Last Glacial Maximum(Univ. Minnesota, Minneapolis, (1993)).
Kutzbach, J. E. & Guetter, P. J. The influence of changing orbital patterns and surface boundary conditions on climate simulations for the past 18,000 years. J. Atmos. Sci. 43, 1726–1759 (1986).
Hall, N. M. J., Valdes, P. J. & Dong, B. The maintenance of the last great ice sheets: a UGAMP GCM study. J. Clim. 9, 1004–1009 (1996).
Barnosky, C. W. Arecord of late-Quaternary vegetation from the southwestern Columbia Basin, Washington. Quat. Res. 23, 109–122 (1985).
Sarna-Wojcicki, A. J. in Late Quaternary Environments of the United States Vol. 2(ed. Wright, H. E. Jr) 52–77 (Univ. Minnesota, Minneapolis, (1983)).
Berger, G. W. & Busacca, A. J. Thermoluminescence dating of Late Pleistocene loess and tephra from eastern Washington and southern Oregon and implications for the eruptive history of Mount St. Helens. J. Geophys. Res. 100, 22361–22374 (1995).
Grimm, E. C. in Vegetation History(eds Huntley, B. & Webb, T.) 53–76 (Kluwer, Dordrecht, (1988)).
Martinson, D. G. et al. Age dating and the orbital theory of the ice ages: development of a high resolution 0 to 300,000-year chronostratigraphy. Quat. Res. 27, 1–29 (1987).
Mack, R. N. & Bryant, V. M. J Modern pollen spectra from the Columbia Basin, Washington. Northwest Sci. 48, 183–194 (1974).
Franklin, J. F. & Dyrness, C. T. Natural Vegetation of Oregon and Washington(Oregon State Univ., Corvallis, (1988)).
Bond, G. et al. Correlations between climate records from North Atlantic sediments and Greenland ice. Nature 365, 143–147 (1993).
Imbrie, J. et al. in Milankovitch and Climate(eds Berger, A., Imbrie, J., Hays, J., Kukla, G. & Saltzman, B.) 269–305 (Reidel, Dordrecht, (1984)).
Berger, A. & Loutre, M. F. Insolation values for the last 10 million years. Quat. Sci. Rev. 10, 297–317 (1991).
Greenland Ice-core Project (GRIP) Members. Climate instability during the last interglacial period recorded in the GRIP ice core. Nature 364, 203–207 (1993).
Thouveny, N. et al. Climate variations in Europe over the past 140 kyr deduced from rock magnetism. Nature 371, 503–506 (1994).
Morley, J. J., Pisias, N. G. & Leinen, M. Late Pleistocene time series of atmospheric and oceanic variables recorded in sediments from the subarctic Pacific. Paleoceanography 2, 49–62 (1987).
Stuiver, M. & Reimer, P. J. Extended 14C data base and revised CALIB 3.0 14C age calibration program. Radiocarbon 35, 215–230 (1993).
Bard, E., Hamelin, B., Fairbanks, R. G. & Zindler, A. Calibration of the 14C timescale over the past 30,000 years using mass spectrometric U-Th ages from Barbados corals. Nature 345, 405–410 (1990).
Mazaud, A., Laj, C., Bard, E., Arnold, M. & Tric, A. E. Geomagnetic field control of 14C production over the last 80 kyr: implications for the radiocarbon time-scale. Geophys. Res. Lett. 18, 1885–1888 (1991).
Cleveland, W. S. Visualizing Data(Hobard, Summit, (1993)).
Acknowledgements
We thank A. Sarna-Wojcicki for tephra identifications, R. J. Nickmann for help with the pollen analysis, and J. Guiot and R. E. Gresswell for reviews. The work was supported by the NSF and the Westinghouse-Hanford Paleoclimate Program.
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Whitlock, C., Bartlein, P. Vegetation and climate change in northwest America during the past 125 kyr. Nature 388, 57–61 (1997). https://doi.org/10.1038/40380
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DOI: https://doi.org/10.1038/40380
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