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Holocene Vegetational History of the Kootenai River Valley, Montana

Published online by Cambridge University Press:  20 January 2017

Richard N. Mack
Affiliation:
Department of Botany, Washington State University, Pullman, Washington 99164 USA
N. W. Rutter
Affiliation:
Department of Geology, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
S. Valastro
Affiliation:
Radiocarbon Laboratory, Balcones Research Center, 10100 Burnet Road, Austin, Texas 78758 USA

Abstract

Pollen records in the Kootenai and Fisher River drainages in western Montana reveal a fivezone sequence of Holocene vegetation change. Deposition of Glacier Peak Ash-Layer G (ca. 10,540 ± 660 yr B.P.) in the lowermost sediments (clay intermixed with pebbles) at Tepee Lake gives a minimum date for the initiation of sedimentation. Initial vegetation on the newly deglaciated terrain was dominated by Pinus (probably white bark pine) with small amounts of Gramineae, Picea and Abies, reflecting a relatively cool, moist macroclimate. Two vegetation units appear to contribute to Pollen Zone II (ca. 11,000–7100 yr B.P.): arboreal communities with pines, along with Pseudotsuga or Larix, or both, and treeless vegetation dominated by Artemisia. Pollen Zone II represents an overall warmer macroclimate than occurred upon ice withdrawal. After ca. 7100 yr B.P. (Pollen Zone III) diploxylon pines became a major pollen contributor near both Tepee Lake and McKillop Creek Pond, indicating an expansion of xerophytic forest (P. contorta and P. ponderosa) along with an increase in the prominence of Pseudotsuga menziesii or Larix occidentalis, or both. Artemisia briefly expanded coverage near Tepee Lake concomitant with the Mazama ashfall ca. 6700 yr B.P. A short-term climatic trend with more available water began after ca. 4000 yr B.P. as Abies (probably A. grandis) along with Picea engelmannii became a more regular component of the forest surrounding both sites. Emergence of the modern macroclimate is indicated primarily with the first regular appearance of Tsuga heterophylla in the pollen record by ca. 2700 yr B.P., synchronous with the development of western hemlock forest within the same latitudes in northern Idaho and northeastern Washington.

Type
Original Articles
Copyright
University of Washington

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References

Alden, W.C., (1953). Physiography and Glacial Geology of Western Montana and Adjacent Areas. U.S. Geological Survey Professional Paper 231.Google Scholar
Alley, N.F., (1972). The Quaternary History of Part of the Rocky Mountains, Foothills, Plains and Western Porcupine Hills, Southwestern Alberta. Ph.D. thesis University of Calgary, Calgary.Google Scholar
Baker, R.G., (1976). Late Quaternary Vegetation History of the Yellowstone Lake Basin, Wyoming. U.S. Geological Survey Professional Paper, 729-E.Google Scholar
Birks, H.J.B., (1976). Late-Wisconsin vegetational history at Wolf Creek, Central Minnesota. Ecological Monographs 46 395429.Google Scholar
Brant, L.A., (1980). A Palynological Investigation of Postglacial Sediments at Two Locations along the Continental Divide near Helena, Montana. Ed.D. thesis Pennsylvania State University, University Park.Google Scholar
Bryson, R., Wendland, W., Ives, J., Andrews, J.T., (1969). Radiocarbon dates on the disintegration of the Laurentide ice sheet. Arctic and Alpine Research 1 113.Google Scholar
Critchfield, W.B., Little, E.L. Jr., (1966). Geographic distribution of the pines of the world. USDA Forest Service, Miscellaneous Publication 991.Google Scholar
Cwynar, L.C., Burden, E., McAndrews, J.H., (1980). An inexpensive sieving method for concentrating pollen and spores from fine-grained sediments. Canadian Journal of Earth Sciences 16 11151120.Google Scholar
Daubenmire, R., (1968). Plant Communities. Harper & Row, New York.Google Scholar
Daubenmire, R., Daubenmire, J.B., (1968). Forest vegetation of eastern Washington and northern Idaho. Washington Agricultural Experiment Station, Technical Bulletin 60.Google Scholar
Davis, M.B., (1976). Pleistocene biogeography of temperate deciduous forests. Geoscience and Man 13 1326.Google Scholar
Faegri, K., Iversen, J., (1975). Textbook of Pollen Analysis. 3rd ed. Munksgaard, Copenhagen.Google Scholar
Franklin, J.F., Dyrness, C.T., (1973). Natural Vegetation of Oregon and Washington. USDA Forest Service, Washington, D.CGeneral Technical Report PNW-8.Google Scholar
Fulton, R.J., (1971). Radiocarbon-geochronology of southern British Columbia. Geological Survey of Canada Paper 7187.Google Scholar
Hare, F.K., (1976). Late Pleistocene and Holocene climates: Some persistent problems. Quaternary Research 6 507517.Google Scholar
Harper, J.L., (1977). The Population Biology of Plants. Academic Press, New York.Google Scholar
Hazell, S., (1979). Late Quaternary Vegetation and Climate of Dunbar Valley, British Columbia. M.S. thesis University of Toronto, Toronto.Google Scholar
Heusser, C.J., Heusser, L.E., Streeter, S.S., (1980). Quaternary temperature and precipitation for the northwest coast of North America. Nature (London) 286 702704.Google Scholar
Hitchcock, C.L., Cronquist, A., Ownbey, M., Thompson, S.S., Cronquist, A., (1955). Vascular Plants of the Pacific Northwest Part 5, Compositae. Univ. Washington Press, Seattle.Google Scholar
Lichti-Federovich, S., (1970). The pollen stratigraphy of a dated section of late-Pleistocene lake sediment from central Alberta. Canadian Journal of Earth Sciences 7 938945.Google Scholar
MacDonald, G.M., (1982). Late Quaternary paleoenvironments of the Morley Flats and Kananaskis Valley of southwestern Alberta. Canadian Journal of Earth Sciences 19 2335.Google Scholar
McAndrews, J.H., (1982). Pollen Analyses of the 1973 Ice Core from Devon Island Ice Cap, Canada. Amer. Quaternary Assoc., Seventh Biennial Conference (abstract).Google Scholar
McMinn, R.G., (1952). The role of soil drought in the distribution of vegetation in the northern Rocky Mountains. Ecology 33 115.CrossRefGoogle Scholar
Mack, R.N., Bryant, V.M. Jr., Pell, W., (1978a). Modern forest pollen spectra from eastern Washington and northern Idaho. Botanical Gazette 139 249255.Google Scholar
Mack, R.N., Rutter, N.W., Bryant, V.M. Jr., Valastro, S., (1978b). Late Quaternary pollen record from Big Meadow. Ecology 59 Pend Oreille Co, Washington 956966.Google Scholar
Mack, R.N., Rutter, N.W., Bryant, V.M. Jr., Valastro, S., (1978c). Reexamination of postglacial vegetation history in northern Idaho: Hager Pond, Bonner Co. Quaternary Research 10 241255.Google Scholar
Mack, R.N., Rutter, N.W., Valastro, S., (1978d). Late Quaternary pollen record from the Sanpoil River Valley, Washington. Canadian Journal of Botany 56 16421650.Google Scholar
Mack, R.N., Rutter, N.W., Valastro, S., Bryant, V.M. Jr., (1978e). Late Quaternary vegetation history at Waits Lake, Colville River Valley, Washington. Botanical Gazette 139 499506.Google Scholar
Markgraf, V., (1980). Pollen dispersal in a mountain area. Grana 19 127146.Google Scholar
Mathewes, R.W., Heusser, L.E., (1981). A 12 000 year palynological record of temperature and precipitation trends in southwestern British Columbia. Canadian Journal of Botany 59 707710.Google Scholar
Mehringer, P.J. Jr., Arno, S.F., Petersen, K.L., (1977a). Postglacial history of Lost Trail Pass Bog, Bitterroot Mountains, Montana. Arctic and Alpine Research 9 345368.Google Scholar
Mehringer, P.J. Jr., Blinman, E., Petersen, K.L., (1977b). Pollen influx and volcanic ash. Science 198 257261.Google Scholar
Mott, R.J., Jackson, L.E. Jr., (1982). An 18 000 year palynological record from the southern Alberta segment of the classical Wisconsinan “Ice-free corridor”. Canadian Journal of Earth Sciences 19 504513.Google Scholar
Pfister, R.C., Kovalchik, B.L., Arno, S.F., Presby, R.C., (1977). Forest Habitat Types of Montana. USDA Forest Service, Washington, D.CGeneral Technical Report INT-34.Google Scholar
Porter, S.C., (1978). Glacier Peak tephra in the North Cascade Range, Washington: Stratigraphy, distribution, and relationship to late-glacial events. Quaternary Research 10 3041.Google Scholar
Porter, S.C., (1981). Glaciological evidence of Holocene climatic change. Wigley, T.M.L., Ingram, M.J., Farmer, G., Climate and History Cambridge Univ. Press, Cambridge 82110.Google Scholar
Porter, S.C., Denton, G.H., (1967). Chronology of neoglaciation in the North American Cordillera. American Journal of Science 265 177210.Google Scholar
Richmond, G.M., Fryxell, R., Neff, G.E., Weis, P.L., (1965). The Cordilleran ice sheet of the northern Rocky Mountains, and related Quaternary History of the Columbia Plateau. Wright, H.E. Jr., Frey, D.G., The Quaternary History of the United States Princeton Univ. Press, Princeton 231242.Google Scholar
Smith, H.W., Okazaki, R., Knowles, C.R., (1977). Electron microprobe data for tephra attributed to Glacier Peak, Washington. Quaternary Research 7 197206.Google Scholar
Stockmarr, J., (1971). Tablets with spores used in absolute pollen analysis. Pollen et Spores 13 615621.Google Scholar
U.S. Environmental Data and Information Service, , (1975). Climatological Data. Annual Summary. Montana. 78 National Oceanic and Atmospheric Administration(13).Google Scholar
U.S. Environmental Data and Information Service, , (1976). Climatological Data. Annual Summary. Montana. 79 National Oceanic and Atmospheric Administration(13).Google Scholar
U.S. Environmental Data and Information Service, , (1977). Climatological Data. Annual Summary. Montana. 80 National Oceanic and Atmospheric Administration(13).Google Scholar
U.S. Environmental Data and Information Service, , (1978). Climatological Data. Annual Summary. Montana. 81 National Oceanic and Atmospheric Administration(13).Google Scholar
U.S. Environmental Data and Information Service, , (1979). Climatological Data. Annual Summary. Montana. 82 National Oceanic and Atmospheric Administration(13).Google Scholar
Waddington, J.C.B., Wright, H.E. Jr., (1974). Late Quaternary vegetational changes on the east side of Yellowstone Park, Wyoming. Quaternary Research 4 175184.Google Scholar
Webb, T. III, (1981). The past 11,000 years of vegetational change in eastern North America. Bioscience 31 501506.Google Scholar
Wright, H.E. Jr., (1976). Pleistocene ecology—Some current problems. Ecology of the Pleistocene—A symposium West, R.C., Haag, W.G., Geoscience and Man 13 112.Google Scholar