Late-Glacial climatic changes in Eastern France (Lake Lautrey) from pollen, lake-levels, and chironomids

Abstract High-temporal resolution analyses of pollen, chironomid, and lake-level records from Lake Lautrey provide multi-proxy, quantitative estimates of climatic change during the Late-Glacial period in eastern France. Past temperature and moisture parameters were estimated using modern analogues and ‘plant functional types’ transfer-function methods for three pollen records obtained from different localities within the paleolake basin. The comparison of these methods shows that they provide generally similar climate signals, with the exception of the Bölling. Comparison of pollen- and chironomid-based temperature of the warmest month reconstructions generally agree, except during the Bölling. Major abrupt changes associated with the Oldest Dryas/Bölling, Alleröd/Younger Dryas, and the Younger Dryas/Preboreal transitions were quantified as well as other minor fluctuations related to the cold events (e.g., Preboreal oscillation). The temperature of the warmest month increased by ∼5°C at the start of Bölling, and by 1.5°�"3°C at the onset of the Holocene, while it fell by ca. 3° to 4°C at the beginning of Younger Dryas. The comparative analysis of the results based on the three Lautrey cores have highlighted significant differences in the climate reconstructions related to the location of each core, underlining the caution that is needed when studying single cores not taken from deepest part of lake basins.

[1]  J. Guiot,et al.  Quantitative Reconstruction of Younger Dryas to Mid-Holocene Paleoclimates at Le Locle, Swiss Jura, Using Pollen and Lake-Level Data , 2001, Quaternary Research.

[2]  H. Richard,et al.  Le Tardiglaciaire du massif jurassien: bilan et perspectives de recherches.: bilan et perspectives de recherches. , 2000 .

[3]  G. Hannon,et al.  High-altitude vegetational pattern on the Iberian Mountain Chain (north-central Spain) during the Holocene , 1999 .

[4]  F. Gasse,et al.  Holocene environmental changes in Bangong Co basin (Western Tibet). Part 4: Discussion and conclusions , 1996 .

[5]  H. Birks,et al.  Late‐glacial climatic oscillations as recorded in Swiss lake sediments , 1992 .

[6]  A. Lotter,et al.  A chironomid-based Holocene summer air temperature reconstruction from the Swiss Alps , 2003 .

[7]  S. Bohncke,et al.  Mean July Temperatures during the Younger Dryas in Northwestern and Central Europe as Inferred from Climate Indicator Plant Species , 1999, Quaternary Research.

[8]  D. Post,et al.  Rapid and widespread vegetation responses to past climate change in the North Atlantic region , 2002 .

[9]  H. H. Birks.  The importance of plant macrofossils in the reconstruction of Lateglacial vegetation and climate: examples from Scotland, western Norway, and Minnesota, USA , 2003 .

[10]  M. Gaillard,et al.  Lateglacial insect assemblages from Grand-Marais, southwestern Switzerland - climatic implications and comparison with pollen and plant macrofossil data , 1994 .

[11]  J. Schwander,et al.  Isotope signature of the Younger Dryas and two minor oscillations at Gerzensee (Switzerland): palaeoclimatic and palaeolimnologic interpretation based on bulk and biogenic carbonates , 2000 .

[12]  L. Millet,et al.  Reconstruction of Late Glacial summer temperatures from chironomid assemblages in Lac Lautrey (Jura, France) , 2005 .

[13]  A. Lotter,et al.  The Würmian Late-glacial in lowland Switzerland , 1994 .

[14]  W. Watts,et al.  Palaeoclimate, chronology and vegetation history of the Weichselian Lateglacial: comparative analysis of data from three cores at Lago Grande di Monticchio, southern Italy , 1999 .

[15]  H. Birks,et al.  Quantification of biotic responses to rapid climatic changes around the Younger Dryas — a synthesis , 2000 .

[16]  B Huntley,et al.  Reconstructing biomes from palaeoecological data: a general method and its application to European pollen data at 0 and 6 ka , 1996 .

[17]  Dorthe Dahl-Jensen,et al.  Oxygen isotope and palaeotemperature records from six Greenland ice‐core stations: Camp Century, Dye‐3, GRIP, GISP2, Renland and NorthGRIP , 2001 .

[18]  J. Vandenberghe,et al.  Periglacial environments during the Weichselian Late Glacial in the Maas valley, the Netherlands. , 1993 .

[19]  Odile Peyron,et al.  Climate of East Africa 6000 14C Yr B.P. as Inferred from Pollen Data , 2000, Quaternary Research.

[20]  J. Lowe,et al.  An event stratigraphy for the Last Termination in the North Atlantic region based on the Greenland ice-core record: a proposal by the INTIMATE group , 1998 .

[21]  Odile Peyron,et al.  Contrasting patterns of hydrological changes in Europe in response to Holocene climate cooling phases. , 2003 .

[22]  Chris S. M. Turney,et al.  Devensian Lateglacial environmental changes in Britain: a multi-proxy environmental record from Llanilid, South Wales, UK , 2003 .

[23]  W. Haeberli,et al.  Environment and climate in southwestern Switzerland during the last termination, 15-10 ka BP☆ , 1994 .

[24]  J. Guiot,et al.  Methodology of the last climatic cycle reconstruction in France from pollen data , 1990 .

[25]  J. Bos.  Lateglacial and Early Holocene vegetation history of the northern Wetterau and the Amöneburger Basin (Hessen), central-west Germany. , 2001, Review of palaeobotany and palynology.

[26]  M. Walker.  Rapid climate change during the last glacial–interglacial transition; implications for stratigraphic subdivision, correlation and dating ☆ , 2001 .

[27]  H. E. Wright,et al.  Palaeoecological Events During the Last 15,000 Years: Regional Synthesis of Palaeoecological Studies of Lakes and Mires in Europe. , 1996 .

[28]  G. Lemdahl.  Lateglacial and Early Holocene insect assemblages from sites at different altitudes in the Swiss Alps—implications on climate and environment , 2000 .

[29]  P. Cour,et al.  Holocene environmental changes in Bangong Co basin (Western Tibet). Part 2: The pollen record , 1996 .

[30]  G. Coope,et al.  The environment of Upper Palaeolithic (Magdalenian and Azilian) hunters at Hauterive-Champréveyres, Neuchâtel, Switzerland, interpreted from coleopteran remains , 2000 .

[31]  Sandy P. Harrison,et al.  Climate and biome simulations for the past 21 , 1998 .

[32]  Sandy P. Harrison,et al.  Reconstruction of Holocene Precipitation Patterns in Europe Using Pollen and Lake-Level Data , 1993, Quaternary Research.

[33]  Ge Yu,et al.  Modern pollen samples from alpine vegetation on the Tibetan Plateau , 2002 .

[34]  H. H. Birks,et al.  Two terrestrial records of rapid climatic change during the glacial-Holocene transition (14,000- 9,000 calendar years B.P.) from Europe. , 2000, Proceedings of the National Academy of Sciences of the United States of America.

[35]  A. Brauer,et al.  High resolution sediment and vegetation responses to Younger Dryas climate change in varved lake sediments from Meerfelder Maar, Germany , 1999 .

[36]  H. Birks,et al.  Younger Dryas and Allerød summer temperatures at Gerzensee (Switzerland) inferred from fossil pollen and cladoceran assemblages , 2000 .

[37]  D. Jacob,et al.  Simulation of the Younger Dryas climate in Europe using a regional climate model nested in an AGCM: preliminary results , 2001 .

[38]  Odile Peyron,et al.  Climatic Reconstruction in Europe for 18,000 YR B.P. from Pollen Data , 1998, Quaternary Research.

[39]  W. Hoek.  Vegetation response to the ∼14.7 and ∼11.5 ka cal. BP climate transitions: is vegetation lagging climate? , 2001 .

[40]  H. Renssen,et al.  The two major warming phases of the last deglaciation at ; 14.7 and ; 11.5 ka cal BP in Europe: climate reconstructions and AGCM experiments , 2001 .

[41]  Rachid Cheddadi,et al.  The climate in Western Europe during the last Glacial/Interglacial cycle derived from pollen and insect remains , 1993 .

[42]  J. Guiot,et al.  Continental European Eemian and early Würmian climate evolution: comparing signals using different quantitative reconstruction approaches based on pollen , 2003 .

[43]  M. Magny.  Palaeohydrological changes as reflected by lake-level fluctuations in the Swiss Plateau, the Jura Mountains and the northern French Pre-Alps during the Last Glacial–Holocene transition: a regional synthesis , 2001 .

[44]  H. Renssen,et al.  Rapid climatic warming: palaeo-data analysis and modeling , 2001 .

[45]  G. Bossuet,et al.  Enregistrement pollinique des changements climatiques de l'Interstade Bolling/Allerod dans l'est de la France , 2000 .

[46]  B. Ammann.  Biotic responses to rapid climatic changes , 2000 .