Sediment stratigraphy and palaeobotanical data from five cores were used to reconstruct the postglacial water-level changes of a small lake in southern Québec. The cores were taken along two transects from the centre of the lake to the margins. Lake level was relatively high before 11 000 cal. BP, when sedimen tation was characterized by the deposition of silty gyttja (.13 000 cal. BP) and marl (13 000–11 000 cal. BP). From 11 000 to 7000 cal. BP, a sediment hiatus was indicated by the lack of two regional pollen zones between the marl and the overlying gyttja, suggesting either nondeposition or erosion of the previously deposited sedi ments due to a low lake level. The lake level was approximately 2 m lower than present on the basis of macrofossil assemblages. A rise in the water level of about 1 m occurred around 7000 cal. BP, which was interrupted by a second lowering between 6100 and 4400 cal. BP, as indicated by a hiatus in the pollen stratigra phy. During this low period, the water level was at least 2 m lower than present. The last 4400 years are characterized by a continuous rise. The lake-level fluctuations are broadly synchronous with other palaeo hydrological records in northeastern United States, Ontario, and Subarctic Québec, implying broad-scale climatic control.
Baker, R.G. , Maher, L.J. , Chumbley, C.A. and Van Zant, K.L.1992: Patterns of Holocene environmental change in the midwestern United States . Quaternary Research37, 379–389 .
2.
Bartlein, P.J. , Webb, T. III and Fleri, E.1984: Holocene climatic change in the northern Midwest: pollen-derived estimates . Quaternary Research22, 361–374 .
3.
Bégin, Y. and Payette, S.1988: Dendroecological evidence of lake-level changes during the last three centuries in subarctic Québec . Quaternary Research30, 210–220 .
4.
Bengtsson, L. , Hellstrom, T. and Rakoczi, L.1990: Redistribution of sediments in three Swedish lakes . Hydrobiologia192, 167–181 .
5.
Benninghoff, W.S.1962: Calculation of pollen and spore density in sediments by addition of exotic pollen in known quantities . Pollen et Spores6, 332–333 .
6.
Birks, H.H.1973: Modern macrofossil assemblage in lake sediments in Minnesota. In Birks, H.J.B. and West, R.G. , editors, Quaternary plant ecology, Oxford: Blackwell Scientific , 143–168.
7.
Bunting, M.J. , Warner, B.G. and Aravena, R.1996: Late Quaternary vegetation dynamics and hydroseral development in a Thuja occidentalisswamp in southern Ontario . Canadian Journal of Earth Sciences33, 1439–1456 .
8.
Campbell, D.R. , Duthie, H.C. and Warner, B.G.1997: Post-glacial development of a kettle-hole peatland in southern Ontario . É coscience4, 404–418 .
9.
Clark, R.L.1982: Point count estimation of charcoal in pollen preparation and thin sections of sediments . Pollen et Spores24, 523–535 .
10.
COHMAP Members1988: Climatic changes of the last 18,000 years: observations and model simulations . Science241, 1043–1052 .
11.
Davis, M.B.1968: Pollen grains in lake sediments: redeposition caused by lake seasonal water circulation . Science162, 796–799 .
12.
Davis, M.B.1973: Redeposition of pollen grains in lake sediments . Limnology and Oceanography18, 44–52 .
13.
Davis, M.B. and Ford, M.S.1982: Sediment focusing in Mirror Lake, New Hampshire . Limnology and Oceanography27, 137–150 .
14.
Davis, M.B. , Moeller, R.E. and Ford, J.1984: Sediment focusing and pollen influx. In Haworth, E.Y. and Lund, J.W.G. , editors, Lake sediments and environmental history, Minneapolis: University of Minnesota Press , 261–293.
15.
Dean, W.E.1974: Determination of carbonate and organic matter in calcareous sediments and sedimentary rocks by loss on ignition: comparison with other methods . Journal of Sedimentary Petrology44, 242–248 .
16.
Dean, W.E. , Ahlbrandt, T.S. , Anderson, R.Y. and Bradbury, J.P.1996: Regional aridity in North America during the middle Holocene . The Holocene6, 145–155 .
17.
Digerfeldt, G. , Almendinger, J.E. and Björck, S.1993: Reconstruction of past lake levels and their relation to groundwater hydrology in the Parkers Prairie sandplain, west-central Minnesota . Palaeogeography, Palaeoclimatology, Palaeoecology94, 99–118 .
18.
Faegri, K. and Iversen, J.1989: Textbook of pollen analysis. (fourth edition). Chichester: John Wiley .
19.
Gadd, N.R. , McDonald, B.C. and Shilts, W.W.1972: Deglaciation of southern Quebec. Geological Survey of Canada , Paper 71–47, 19-19 pp.
20.
Gajewski, K.1987: Climatic impacts on the vegetation of eastern North America during the past 2000 years . Vegetatio68, 179–190 .
21.
Grimm, E.C.1991: TILIA and TILIA-GRAPH. Illinois State Museum, Springfield, Illinois .
22.
Guiot, J. , Harrison, S.P. and Prentice, I.C.1993: Reconstruction of Holocene precipitation patterns in Europe using pollen and lake-level data . Quaternary Research40, 139–149 .
23.
Haas, J.N.1994: First identification key for charophyte oospores from central Europe . European Journal of Phycology29, 227–235 .
24.
Hannon, G.E. and Gaillard, M.J.1997: The plant-macrofossil record of past lake-level changes . Journal of Paleolimnology18, 15–28 .
25.
Harrison, S.P.1989: Lake levels and climatic change in eastern North America . Climate Dynamics3, 157–167 .
26.
Harrison, S.P. and Digerfeldt, G.1993: European lakes as palaeohydrological and palaeoclimatic indicators . Quaternary Science Reviews12, 233–248 .
27.
Harrison, S.P. and Metcalfe, S.E.1985: Variations in lake levels during the Holocene in North America: an indicator of changes in atmospheric circulation patterns . Géographie physique et Quaternaire39, 141–150 .
28.
Kutzbach, J.E. and Guetter, P.J.1986: The influence of changing orbital parameters and surface boundary conditions on climate simulations for the past 18,000 years . Journal of Atmospheric Science43, 1726–1759 .
29.
Larouche, A.C. 1979: Histoire postglaciaire comparée de lavégétationà Sainte-Foy et au mont des Éboulements, Québec, par l'analyse macrofossile et l'analyse pollinique. MSc thesis, Université Laval.
30.
Larsen, C.P.S. and MacDonald, G.M.1993: Lake morphometry, sediment mixing and the selection of sites for fine resolution palaeoecological studies . Quaternary Science Reviews12, 781–792 .
31.
Lavoie, M. and Richard, P.J.H.2000: The role of climate on the developmental history of Frontenac Peatland, southern Quebec . Canadian Journal of Botany78, 668–684 .
32.
Lepage, H. and Bégin, Y.1996: Tree-ring dating of extreme water level events at Lake Bienville, subarctic Québec, Canada . Arctic and Alpine Research28, 77–84 .
33.
Odgaard, B.V.1993: Wind-determined sediment distribution and Holocene sediment yield in a small, Danish, kettle lake . Journal of Paleolimnology8, 3–13 .
34.
Parent, M. and Occhietti, S.1999: Late Wisconsinian deglaciation and glacial lake development in the Appalachians of southeastern Québec . Géographie physique et Quaternaire53, 117–135 .
35.
Parent, M. , Dubois, J.M.M. , Bail, P. , Larocque, A. and Larocque, G.1985: Paléogéographie du Québec méridional entre 12 500 et 8000 ans BP . Recherches Amérindiennes au Québec15, 17–37 .
36.
Payette, S. and Delwaide, A.1991: Variations séculaires du niveau d'eau dans le bassin de la riviére Boniface (Québec nordique): une analyse dendroécologique . Géographie physique et Quaternaire45, 59–67 .
37.
Payette, S. and Filion, L.1993: Holocene water-level fluctuations of a subarctic lake at the tree line in northern Québec . Boreas22, 7–14 .
38.
Pourriot, R. and Meybeck, M.1995: Limnologie générale. Masson.
39.
Richard, P.J.H.1975: Contributionà l'histoire postglaciaire de la végétation dans les Cantons-de-l'Est: étude des sites de Weedon et Albion . Cahiers de Géographie de Québec19, 267–284 .
40.
Richard, P.J.H. 1977: Histoire post-wisconsinienne de la végétation du Québec mér idional par l'analyse pollinique. Service de la recherche, Direction générale des forêts, Ministàre des terres et forêts du Québec, Publications et rapports divers.
41.
Richard, P.J.H1995: Le couvert végétal du Québec-Labrador il y a 6000 ans BP: essai . Géographie physique et Quaternaire49, 117–140 .
42.
Richard, P.J.H1994: Postglacial palaeophytogeography of the eastern St Lawrence River Watershed and the climatic signal of the pollen record . Palaeogeography, Palaeoclimatology, Palaeoecology109, 137–161 .
43.
Richard, P.J.H. and Larouche, A.C.1994: Histoire postglaciaire de la végétation et du climat dans la région de Rimouski, Québec . Paléo-Qué-bec22, 49–89 .
44.
Ritchie, J.C. and Harrison, S.P.1993: Vegetation, lake levels, and climate in western Canada during the Holocene. In Wright, H.E. Jr. , Kutzbach, J.E. , Street-Perrott, F.A. , Ruddiman, W.F. and Webb, T. III , editors, Global palaeoclimates since the last glacial maximum, Minneapolis: University of Minnesota Press , 401–414.
45.
Schwalb, A. , Locke, S.M. and Dean, W.E.1995: Ostracode 18O and 13C evidence of Holocene environmental changes in the sediments of two Minnesota lakes . Journal of Paleolimnology14, 281–296 .
46.
Sreenivasa, M.R. and Duthie, H.C.1973: The postglacial diatom history of Sunfish Lake, southwestern Ontario . Canadian Journal of Botany51, 1599–1609 .
47.
Stuiver, M. and Reimer, P.J.1993: Extended 14C age calibration program . Radiocarbon35, 215–230 .
48.
Szeicz, J.M. and MacDonald, G.M.1991: Postglacial vegetation history of oak savanna in southern Ontario . Canadian Journal of Botany69, 1507–1519 .
49.
Tardif, J. and Bergeron, Y.1997: Ice-flood history reconstructed with tree-rings from the southern boreal forest limit, western Québec . The Holocene7, 291–300 .
50.
Vance, R.E. and Last, W.M.1994: Paleolimnology and global change on the southern Canadian prairies . Current Research of Geological Survey of Canada1994-B, 49–58 .
51.
Vance, R.E. , Mathewes, R.W. and Clague, J.J.1992: 7000 year record of lake-level change on the northern Great Plains: a high-resolution proxy of past climate . Geology20, 879–882 .
52.
Vassiljev, J.1998: The simulated response of lakes to changes in annual and seasonal precipitation: implication for Holocene lake-level changes in northern Europe . Climate Dynamics14, 791–801 .
53.
Vassiljev, J. , Harrison, S.P. and Guiot, J.1998: Simulating the Holocene lake-level record of Lake Bysjön, southern Sweden . Quaternary Research49, 62–71 .
54.
Watts, W.A. and Winter, T.C.1966: Plant macrofossils from Kirchner Marsh, Minnesota– a palaeoecological study . Geological Society of America Bulletin77, 1339–1360 .
55.
Webb, R.S. , Anderson, K.H. and Webb, T. III1993: Pollen responsesurface estimates of Late-Quaternary changes in the moistures balance of the northeastern United States . Quaternary Research40, 213–227 .
56.
Webb, T. III , Bartlein, P.J. , Harrison, S.P. and Anderson, K.H.1993: Vegetation, lake levels, and climate in eastern North America for the past 18,000 years. In Wright, H.E. Jr. , Kutzbach, J.E. , Street-Perrott, F.A. , Ruddiman, W.F. and Webb, T. III , editors, Global palaeoclimates since the last glacial maximum, Minneapolis: University of Minnesota Press , 415–467.
57.
Wetzel, R.G.1983: Limnology. Philadelphia: Saunders College Publishing .
58.
Winkler, M.G. , Swain, A.M. and Kutzbach, J.E.1986: Middle Holocene dry period in the northern midwestern United States: lake levels and pollen stratigraphy . Quaternary Research25, 235–250 .
59.
Yu, Z.C.1995: Mid-Holocene dry period in southern Ontario?: Responses of lake hydrology and upland pollen to climate change. In Proceedings, Climate, Landscape and Vegetation Change in the Canadian Prairie Provinces, Canadian Forest Service, Edmonton , 97–104.
60.
Yu, Z.C. and McAndrews, J.H.1994: Holocene water levels at Rice Lake, Ontario, Canada: sediment, pollen and plant-macrofossil evidence . The Holocene4, 141–152 .
61.
Yu, Z.C. , McAndrews, J.H. and Eicher, U.1997: Middle Holocene dry climate caused by change in atmospheric circulation patterns: evidence from lake levels and stable isotopes . Geology25, 251–254 .
62.
Yu, Z.C. , McAndrews, J.H. and Siddiqi, D.1996: Influences of Holocene climate and water levels on vegetation dynamics of a lakeside wetland . Canadian Journal of Botany74, 1602–1615 . 14C data base revised CALIB 3.0
