Climate of the Past Discussions www.clim-past-discuss.net 1814-9340 1814-9359 5 1 2009 10.5194/cpd-5-671-2009 http://www.clim-past-discuss.net/5/671/2009/ http://www.clim-past-discuss.net/5/671/2009/cpd-5-671-2009.html http://www.clim-past-discuss.net/5/671/2009/cpd-5-671-2009.pdf 671 707 2009-02-24 Rapid climatic variability in the west Mediterranean during the last 25 000 years from high resolution pollen data N. Combourieu Nebout nathalie.nebout@lsce.ipsl.fr O. Peyron I. Dormoy Laboratoire des Sciences du Climat et de l'Environnement, UMR 1572 CNRS/CEA/UVSQ, 91198 Gif sur Yvette Cedex, France Laboratoire de Chrono-Environnement, UMR 6249 CNRS, Université de Franche-Comté, UFR des Sciences et Techniques, 16 Route de Gray, 25030 Besançon, France High-temporal resolution pollen record of Alboran Sea ODP Site 976 and pollen-based quantitative climate reconstruction shows that changes of Mediterranean vegetation have been clearly modulated by short and long term variability during the last 25 000 years. The western Mediterranean vegetation response appears nearly synchronous with North Atlantic variability during the last deglaciation as well as during the Holocene. High-resolution analyses of the ODP 976 pollen record allows to separate the Bölling/Alleröd period in two warm episodes that surround a cooling representative of the climatic succession of the Bölling, Older Dryas and Alleröd. A cooling trend is observed from Bölling to Alleröd. The ODP pollen record confirms that Mediterranean environments show rapid responses to the climatic fluctuations during the last termination, in particular that of all the climate oscillations associated with the successive steps of the deglaciation in the North Atlantic have been observed in the west Mediterranean region. Recurrent Holocene declines of the forest cover on the Alboran Sea borderlands indicate repetitive climate events that correlate well with several events of increased Mediterranean dryness observed on the continent and with alkenone SST showing Mediterranean Sea cooling. These events reflect clearly the response of to Mediterranean vegetation to North Atlantic Holocene cold events. Allen, J R M., Huntley, B., and Watts, W A. : The vegetation and climate of northwest Iberia over the last 14 000 \unityr, J. Quaternary Sci., 11, 125–147, 1996. Allen, J R M., Watts, W A., McGee, E., and Huntley, B.: Holocene environmental variability-the record from Lago Grande di Monticchio, Italy, Quatern. Int., 88, 69–80, 2002. Antonioli, F., Silenzi, S., and Frisia, S.: Tyrrhenian Holocene palaeoclimate trends from spelean serpulids, Quaternary Sci. Rev., 20, 1661–1670, 2001. Barbero, M., Loisel, R., and Quezel, P.: Biogeography, ecology and history of Mediterranean \textitQuerus ilex ecosystems, Vegetatio, 99–100, 19–34, 1992. Barbero, M., Quezel, P., and Rivas Martinez, S.: Contribution à l'étude des groupements forestiers et préforestiers du Maroc, Phytoenologia, 9, 311–412, 1981. Bard, E.: Geochemical and geophysical implications of the radiocarbon calibration, Geochim. Cosmochim. Ac., 62, 2025–2038, 1998. Benabib, A.: Bref aperçu sur la zonation altitudinale de la végétation climatique du Maroc, Ecol. Medit., 8, 1–2, 301–315, 1982. Benabid, A.: Flore et ecosystems du Maroc. Editions Ibis Press, Paris, France, 359 pp., 2000. Björk, S., Walker, M J C., Johnsen, S J., Knudsen, K L., Lowe, J., Wohlfart, B., and Intimate members: An event stratigraphy for the last termination In the North Atlantic region based on the Greenland ice-core record: A~proposal by the intimate goup, J. Quaternary Sci., 4, 283–292, 1998. Bond, G., Broecker, W., Johnsen, S., McManus, J., Labeyrie, L., Jouzel, J., and Bonani, G.: Correlations between climate records from North Atlantic sediments and Greenland ice, Nature, 365, 143–147, 1993. Bond, G., Showers, W., Cheseby, M., Lotti, R., Almasi, P., deMenocal, P., Priore, P., Cullen, H., Hajdas, H., and Bonani, G.: A~pervasive millennial-scale cycle in North Atlantic Holocene and glacial climates, Science, 278, 1257–1266, 1997. Bond, G., Kromer, B., Beer, J., Muscheler, R., Evans, M N., Showers, W., Hoffmann, S., Lotti-Bond, R., Hajdas, I., and Bonami, G.: Persistent solar influence on North Atlantic climate during the Holocene, Science, 294, 2130–2136, 2001. Bordon, A., Peyron, O., Lézine, A.-M., Brewer, S., and Fouache, E.: Pollen-inferred late-glacial and Holocene climate in southern Balkans (Lake Maliq), Quaternary Int., in press, 2009. Bout-Roumazeilles, V., Combourieu Nebout, N., Peyron, O., Cortijo, E., and Masson-Delmotte, V.: Connexion between South Mediterranean climate and North African atmospheric circulation during MIS~3 North Atlantic cold events, Quaternary Sci. Rev., 26, 3197–3215, 2007. Brauer, A., Allen, J R M., Mingram, J., Dulski, P., Wulf, S., and Huntley, B.: Evidence for last interglacial chronology and environmental change from southern Europe, P. Natl. Acad. Sci. USA, 104, 450–455, 2007. Brewer, S., Guiot, J., and Torre, F.: Mid-Holocene climate change in Europe: a data-model comparison, Clim. Past, 3, 499–512, 2007. Cacho, I., Grimalt, J O., Pelejero, C., Canals, M., Sierro, F J., Flores, J A., and Shackleton, N J.: Dansgaard-Oeschger and Heinrich events imprints in the Alboran Sea paleotemperatures, Paleoceanography, 14, 698–705, 1999 Cacho, I., Grimalt, J.-O., Canals, M., Sbaffi, L., Shackleton, N., Schönfeld, J., and Zahn, R.: Variability of the western Mediterranean Sea surface temperature during the last 25 000 years and its connection with the northern hemisphere climatic changes, Paleoceanography, 16, 40–52, 2001. Carrión, J S., Fuentes, N., González-Sampériz, P., Sánchez Quirante, L., Finlayson, J C., Fernández, S., and Andrade, A.: Holocene environmental change in a~montaneregion of southern Europe with a~long history of human settlement, Quaternary Sci. Rev., 26, 1455–1475, 2007. Cheddadi, R., Lamb, H F., Guiot, J., and van der Kaars, S.: Holocene climatic changes in Morrocco a~quantitative reconstruction from pollen data, Clim. Dynam., 14, 883–890, 1998. Cheddadi, R., Yu, G., Guiot, J., Harrison, S P., Prentice, I C.: The climate of Europe 6000 years ago, Clim. Dynam., 13, 1–9, 1997. Cheddadi, R., Fady, B., Françoic, L., Hajar, L., Suc, J.-P., Huang, K., Demarteau, M., Vendramin, G G., and Ortu, E.: Putative glacial refugia of \textitCedrus atlantica deduced from Quaternary pollen records and modern genetic diversity, J. Biogeography, doi:10.1111/j 1365-2699.2008.02063.x, in press, 2009. Colombaroli, D., Vanniere, B., Chapron, E., Magny, M., and Tinner, W.: Fire-vegetation interactions during the Mesolithic-Neolithic transition at Lago dell'Accesa, Tuscany, Italy, The Holocene, 18(5), 679–692, 2008. Comas, M C., Zahn, R., and Klaus, A., et al.: Proc. ODP, Init. Reports., Vol 161, Ocean Drilling Program, College Station, TX, 1023 pp., 1996. Combourieu Nebout, N., Paterne, M., Turon, J L., and Siani, G.: A~high-resolution record of the last deglaciation in the Central Mediterranean Sea: Palaeovegetation and palaeohydrological evolution, Quaternary Sci. Rev., 17, 303–317, 1998. Combourieu Nebout, N., Londeix, L., Baudin, F., Turon, J.-L., von Grafenstein, R., and Zahn, R.: Quaternary marine and continental paleoenvironments in the western Mediterranean (Site~976, Alboran Sea): Palynological evidence, in: Proc. ODP, Sci. Results, edited by: Zahn, R., Comas, M C., Klaus, A., Vol 161, Ocean Drilling Program, College Station, TX, 457–468, 1999. Combourieu Nebout, N., Turon, J.-L., Zahn, R., Capotondi, L., Londeix, L., and Pahnke, K.: Enhanced aridity and atmospheric high-pressure stability over the western Mediterranean during the North Atlantic cold events of the past 50 \unitky, Geology, 30, 863–866, 2002. Davis, B A S., Brewer, S., Stevenson, A C., Guiot, J., and data contributor: The temperature of Europe during the Holocene reconstructed from pollen data, Quaternary Sci. Rev., 22, 1701–1716, 2003. Dormoy, I., Peyron, O., Combourieu Nebout, N., Goring, S., Kotthoff, U., Magny, M., and Pross, J.: Terrestrial climate variability and seasonality changes in the Mediterranean region between 15 000 and 4 000 years BP deduced from marine pollen records, Clim. Past. Discuss., in press, 2009. Drescher-Schneider, R., de Beaulieu, J.-L., Magny, M., Walter-Simonet, A.-V., Bossuet, G., Millet, L., Brugiapaglia, E L., and Drescher, A.: Vegetation history, climate and human impact over the last 15 000 years at Lago dell'Accesa (Tuscany, Central Italy), Veg. Hist. Archaeobot., 16(4), 279–299, 2007. Elliot, M., Labeyrie, L., Bond, G., Cortijo, E., Turon, J L., Tisnerat, N., and Duplessy, J C.: Millennial scale iceberg discharges in the Irminger Basin during the last glacial period: Relationship with the Heinrich events and environmental settings, Paleoceanography, 13, 433–446, 1998. Faegri, K. and Iversen, J.: Textbook of Pollen Analysis. Munksgaard, Copenhagen, 237 pp., 1964. Fletcher, W J. and Sanchez Goni, M F.: Orbital-sub-orbital-scale climate impact on vegetation of the western Mediterranean basin over the last 48 000 \unityr, Quaternary Res., 70, 3, 451–464, 2008. Fletcher, W J., Sanchez-Goñi, M F., Peyron, O., and Dormoy, I.: Abrupt climate changes of the last deglaciation detected in a western Mediterranean forest record, Clim. Past Discuss., 5, 203–235, 2009. Frigola, J., Moreno, A., Cacho, I., Canals, M., Sierro, F J., Flores, J A., Grimalt, J O., Hodell, D A., and Curtis, J H.: Holocene climate variability in the western Mediterranean region from a~deepwater sediment record, Paleoceanography, 22, PA2209, doi:10.1029/2006PA001307, 2007. Genty, D., Blamart, D., Ghaleb, B., Plagnes, V., Causse, C., Bakalowicz, M., Zouari, K., Chkir, N., Hellstrom, J., Wainer, K., Bourge F.: Timing and dynamics of the last deglaciation from European and North African $\delta^13$C stalagmite profiles~– comparison with Chinese and South Hemisphere stalagmites, Quaternary Sci. Rev., 25, 2118–2142, 2006. Grafenstein, U., von Erlenkeusen, H., Brauer, A., Jouzel, J., Johnsen, S J.: A~mid-European decadal isotope-climate record from 15 500 to 5000 years BP, Science, 284, 1654–1657, 1999. Grieser, J., Giommes, R., and Bernardi, M.: New LocClim – the Local Climate Estimator of FAO, in \qutEuropean Geosciences Union, Geophys. Res. Abstr., 8, 08305, Vienna, 2006. Grimm, E C.: Coniss: A~Fortran 77 program for stratigraphically constrained cluster analysis by the method of incremental sum of squares, Comput. Geosci., 13, 13–35, 1986. Guiot, J.: Methodology of the last climatic cycle reconstruction in France from pollen data, Palaeogeogr. Palaeoclimatol. Palaeoecol., 80, 49–69, 1990. Hayes, A., Kucera, M., Kallel, N., Sbaffi, L., and Rohling, E J.: Glacial Mediterranean sea surface temperatures based on planktonic foraminiferal assemblages, Quaternary Sci. Rev., 24, 999–1016, 2005. Heusser, L E. and Balsam, W L.: Pollen distribution in the northeast Pacific Ocean, Quaternary Res., 7, 45–62, 1977. Hooghiemstra, H., Stalling, H., Agwu, C O C., and Dupont, L M.: Vegetational and climatic changes at the northern fringe of the Sahara 250 000–5000 years BP: Evidence from 4 marine pollen records located between Portugal and the Canary Islands, Rev. Palaeobot. Palynol., 74, 1–53, 1992. Hooghiemstra, H., Lézine, A.-M., Leroy, S A G., Dupont, L., and Marret, F.: Late Quaternary palynology in marine sediments: A~synthesis of the understanding of pollen distribution patterns in the NW African setting, Quaternary Int., 148, 29–44, 1995. Hooghiemstra, H., Le\`ızine, A.-M., Leroy, S A G., Dupont, L., and Marret, F.: Late Quaternary palynology in marine sediments: a~synthesis of the understanding of pollen distribution patterns in the NW African setting, Quaternary Int., 148, 29–44, 2006. Huntley B. and Prentice I C.: July temperatures in Europe from pollen data, 6000 years before present, Science, 241(4866), 687–690, 1988. Huntley, B., Watts, W A., Allen, J R M., and Zolitschka, B.: Palaeoclimate, chronology and vegetation history of the Weichselian lateglacial: Comparative analysis of data from three cores at lago Grande di Monticchio, southern Italy, Quaternary Sc. Rev., 18, 945–960, 1999. Huntley, B., Alfano, M J., Allen, J M R., Pollard, D., Tzedakis, P C., de Beaulieu, J.-L., Grüger, E., and Watts, B.: European vegetation during marine stage −3, Quaternary Res., 59, 195–212, 2003. Jalut, G., Amat, A E., Bonnet, L., Gauquelin, T., and Fontugne, M.: Holocene climatic changes in the western Mediterranean from southeast France to South-East Spain, Palaeogeog., Palaeoclimatol., Palaeoecol., 160, 255–290, 2000. Jalut, G., Dedoubat, J J. Fontugne, M., and Otto, T.: Holocene circum-Mediterranean vegetation changes: Climate forcing and human impact, Quaternary. Int., in press, 2009. Johnsen, S J., Dahl-Jensen, D., Gundestrup, N., Steffensen, J P., Clausen, H B., Miller, H., Masson-Delmotte, V., Sveinbjörnsdottir, A E., and White, J.: Oxygen isotope and palaeotemperature records from six Greenland ice-core stations: Camp Century, Dye3, GRIP,GISP2, Renland and NorthGRIP, J. Quaternary Sci., 16, 299–307, 2001. Jost, A., Lunt, D., Kageyama, M., Abe-Ouchi, A., Peyron, O., Valdes, P J., and Ramstein, G.: High resolution simulations of the Last Glacial Maximum clmiate over Europe: A~solution to discrepanciers with pollen-based paleoclimatic reconstructions?, Clim. Dynam., 24, 577–590, doi:10.1007/s00382-005-0009-4., 2005. Kageyama, M., Combourieu Nebout, N., Sepulchre, P., Peyron, O., Krinner, G., Ramstein, G., and Cazet, J.-P.: The Last Glacial Maximum and Heinrich event 1 in terms of climate and vegetation around the Alboran Sea: A~preliminary model-data comparison, CR Geosci., 337, 983–992, 2005. Kallel, N., Paterne, M., Labeyrie, L., Duplessy, J.-C., and Arnold, M.: Temperature and salinity records of the Tyrrhenian Sea during the last 18 000 years, Paleogeogr. Paleoclimatol. Paleoecol., 135, 97–108, 1997. Kotthoff, U., Pross, J., Müller, U C., Peyron, O., Schmiedl, G., Schulz, H., and Bordon, A.: Climate dynamics in the borderlands of the Aegean Sea during formation of sapropel S1 deduced from a~marine pollen record, Quaternary Sci. Rev., 27(7–8), 832–845, 2008. Kucera, A., Rosell-Mele, A., Schneider, R., Waelbroeck, C., and Weinelt, M.: Multiproxy approach for the reconstruction of the glacial ocean, surface (MARGO), Quaternary Sci. Rev., 24, 813–819, 2005. Kuhleman, J. Rohling, E J. Krumrei, I., Kubik, P., Ivy-Ochs, S., and Kucera, M.: Regional synthesis of Mediterranean Atmospheric circulation during the Last Glacial Maximum, Science, 321, 1338–1340, 2008. Lamb, H F., Eicher U., and Switsur, V R.: An 18 000-year record of vegetation, lake level and climatic change from Tigalmine, Middle Atlas, Morocco, J. Biogeogr., 16, 65–74, 1989. Lamb, H F., Gasse, F., Benkaddour, A., Hamouti, N E P., van der Kaars, S., Perkins, W T., Pearce, N J., and Roberts, C N.: Relation between century-scale Holocene arid intervals in tropical and temperate zones, Nature, 373, 134–137, 1995. Lowe, J J., Rasmussen, S O., Björck, S., Hoek, W Z., Steffensen, J P., Walkere, M J C., Yu, Z C., and the INTIMATE group: Synchronisation of palaeoenvironmental events in the North Atlantic region during the Last Termination: A~revised protocol recommended by the INTIMATE group, Quaternary Sci. Rev., 27, 6–17, 2008. Magny, M., Bégeot, C., Guiot, J., and Peyron, O.: Contrasting patterns of hydrological changes in response to Holocene climate cooling phases, Quaternary Sci. Rev., 22, 1589–1596, 2003. Magny, M., de Beaulieu, J L., Drescher-Schneider, R., Vanniere, B., Walter-Simonnet, A V., Millet, L., Bossueta, G., and Peyron, O.: Climatic oscillations in central Italy during the last Glacial–Holocene transition: The record from Lake Accesa, J. Quaternary Sci., 21, 1–10, 2006. Magny, M., de Beaulieu, J.-L., Drescher-Schneiderc, R., Vanniere, B., Walter-Simonne, A.-V., Miras, Y., Millet, L., Bossueta, G., Peyron, O., Brugiapaglia, E., and Leroux, A.: Holocene climate changes in the central Mediterranean as recorded by lake-level fluctuations at Lake Accesa (Tuscany, Italy), Quaternary Sci. Rev., 26, 1736–1756, 2007. Magny, M., Peyron, O., Gauthier, E., Rouèche, H., Bordon, A., Billaud, Y., Chapron, E., Marguet, A., Pétrequin P., and Vannière, B.: Quantitative reconstruction of climatic variations during the Bronze and early Iron ages based on pollen and lake-level data in the NW Alps, France, Quatern. Int., in press, 2009. Magri, D., and Parra, I.: Late Quaternary western Mediterranean pollen records and African winds, Earth Planet. Sci. Lett., 200, 401–408, 2002. Marchal, O., Cacho, I., Stocker, T F., Grimalt, J O., Calvo, E., Martrat, B., Shackleton, N., Vautravers, M., Cortijo, E., van Kreveld, S., Andersson, C., Koç, N., Chapman, M., Sbaffi, L., Duplessy, J.-C., Sarnthein, M., Turon, J.-l., Duprat, J., and Jansen, E.: Apparent long-termcooling of the sea surface in the northeast Atlantic and Mediterranean during the Holocene, Quaternary Sci. Rev., 21, 455–483, 2002.. Mix, A., Bard, E., and Schneider, R.: Environmental processes of the ice age: Land, oceans, glaciers (EPILOG), Quaternary Sci. Rev., 20, 627–657, 2001. Müller, S., Tarasov, P. E., Andreev, A. A., and Diekmann, B.: Late Glacial to Holocene environments in the present-day coldest region of the Northern Hemisphere inferred from a pollen record of Lake Billyakh, Verkhoyansk Mts, NE Siberia, Clim. Past Discuss., 4, 1237–1264, 2008. Naughton, F., Sanchez Goni, M F., Desprat, S., Turon, J L., Duprat, J., Malaizé, B., Joli, C., Cortijo, E., Drago, T., and Freitas, M C.: Present-day and past (last 25 000 years) marine pollen signal off western Iberia, Mar. Micropaleontol., 62, 91–114, 2007. New, M., Hulme, M., and Jones, P D.: Representing twentieth century space-time climate variability. Part 2: development of 1901–96 monthly grids of terrestrial surface climate, J. Climate 13, 2217–2238 2000. North Greenland Ice Core Project members: High-resolution record of northern hemisphere climate extending into the last interglacial period, Nature, 431, 147–151, 2004. Overpeck, J T., Webb, T., and Prentice, I C.: Quantitative interpretation of fossil pollen spectra: Dissimilarity coefficients and the method of modern analogs, Quaternary Res., 23, 87–108, 1985. Ozenda, P.: Sur les étages de végétation dans les montagnes du bassin méditerranéen, Documents de Cartographie Ecologique, 16, 1–32, 1975. Peñalba, M C., Arnold, M., Guiot, J., Duplessy, J.-C., and de Beaulieu, J.-L.: Termination of the last glaciation in the Iberian Peninsula inferred from the pollen sequence of Quintanar de la Sierra, Quaternary Res., 48, 205–214, 1997. Peyron, O., Guiot, J., Cheddadi, R., Tarasov, P., Reille, M., de Beaulieu, J.-L., Bottema, S., and Andrieu, V.: Climatic reconstruction in Europe for 18 000 \unityr BP from pollen data, Quaternary Res., 49, 183–196, 1998. Peyron, O., Bégeot, C., Brewer, S., Heiri, O., Magny, M., Millet, L., Ruffaldi, E P., Van Campo, E., and Yu, G.: Late glacial climatic changes in eastern France (Lake Lautrey) from pollen, lake-levels, and chironomids, Quaternary Res., 64, 197–211, 2005. Pons, A. and Reille, M.: The Holocene and Upper Pleistocene pollen record from Padul (Granada, Spain): A~new study, Palaeogeogr. Palaeoclimatol. Palaeoecol., 66, 243–263, 1988. Polunin, O. and Walters, M.: A~Guide to the Vegetation of Britain and Europe. Oxford University Press, New York, USA, 238 pp., 1985. Prentice, I C., Guiot, J., and Harrison, S P.: Mediterranean vegetation, lake levels and palaeoclimate at the Last Glacial Maximum, Nature, 360, 658–660, doi:10.1038/360658a0, 1992. Prentice, C., Guiot, J., Huntley, B., Jolly, D., and Cheddadi, R.: Reconstructing biomes from palaeoecological data: A~general method and its application to European pollen data at 0 and 6 \unitka, Clim. Dynam., 12, 3, 185–194, 1996. Quezel, P.: Réflexions sur l'évolution de la flore et de la végétation au Maghreb méditerranéen. Ibis Press, Paris, France, 117 pp., 2002. Quezel, P. and Médail, F.: Ecologie et biogéographie des forêts du bassin méditerranéen, Elsevier-Lavoisier eds, Paris, France, 571 pp., 2003. Ramstein, G., Kageyama, M., Guiot, J., Wu, H., Hély, C., Krinner, G., and Brewer, S.: How cold was Europe at the Last Glacial Maximum? A synthesis of the progress achieved since the first PMIP model-data comparison, Clim. Past, 3, 331–339, 2007. Rasmussen, S O., Andersen, K K., Svensson, A M., Steffensen, J P., Vinther, B M., Clausen, H B., Siggaard-Andersen, M.-L., Johnsen, S J., Larsen, L B., Dahl-Jensen, D., Bigler, M., Rothlisberger, R., Fischer, H., Goto-Azuma, K., Hansson, M E., and Ruth, U.: A~new Greenland ice core chronology for the last glacial termination, J Geophys. Res., 111, D06102, doi:10.1029/2005JD006079, 2006. Rasmussen, S O., Vinther, B M., Clausen, H B., Andersen, K K.: Early Holocene climate oscillations recorded in three Greenland ice cores, Quaternary Sci. Rev., 26, 1907–1914, 2007. Rivas-Martinez, S.: Etages bioclimatiques, secteurs chronologiques et séries de végétation de l'Espagne méditerranéenne, Ecol. Medit., 8, 275–288, 1982. Rohling, E J., Hayes, A., De Rijk, S., Kroon, D., Zachariasse, W J., and Eisma, D.: Abrupt cold spells in the northwest Mediterranean, Paleoceanography, 13(4), 316–322, 1998. Rohling, E J., Mayewski, P A., Abu-Zied, R H., Casford, J S L., and Hayes, A.: Holocene atmosphere-ocean interactions: Records from Greenland and the Aegean Sea, Clim. Dynam., 18, 587–593, doi:10.1007/s00382-001-0194-8, 2002. Sadori, L. and Narcisi, B.: The post glacial record of environmental history from Lago di Pergusa, Sicily, Holocene, 11(6), 655–371, 2001. Sanchez Goni, M F., Cacho, I., Turon, J.-L., Guiot, J., Sierro, F J., Peypouquet, J.-P., Grimalt, J O., Shackleton, N J.: Synchroneity between marine and terrestrial responses to millennial scale climatic variability during the last glacial period in the Mediterranean region, Clim. Dynam., 19, 95–105, 2002. Siani, G., Paterne, M., Arnold, M., Bard, E., Metivier, B., Tisnerat, N., and Bassinot, F.: Radiocarbon reservoir ages in the Mediterranean Sea and Black Sea, Radiocarbon, 42, 271–280, 2000. Siani, G., Paterne, M., Michel, E., Sulpizio, R., Sbrana, A., Arnold, M., and Haddad, G.: Mediterranean Sea surface radiocarbon reservoir age changes since the Last Glacial Maximum, Science 294, 1917–1920, 2001. Stuiver, M. and Reimer, P J.: Extended $^14$\chemC database and revised CALIB radiocarbon calibration program, Radiocarbon, 35, 215–230, 1993. Stuiver, M., Reimer, P J., and Reimer, R W.: CALIB 5.0, WWW program and documentation, 2005. Tarasov, P E., Guiot, J., Cheddadi, R., Andreev, A A., Bezusko, L., Blyakharchuk, T A., Dorofeyuk, N I., Filimonova, L V., Volkova, V S., and Zernitchkaya, V P.: Climate in northern Eurasia 6000 years ago reconstructed from pollen data, Earth Planet. Sc. Lett., 171, 635–645, 1999a. Tarasov, P E., Peyron, O., Guiot, J., Brewer, S., Volkova, V S., Bezusko, L., Dorofeyuk, N I., Kvavadze, E V., Osipova, I M., and Panova, N K.: Last Glacial Maximum climate of the former Soviet Union and Mongolia reconstructed from pollen and plant macrofossil data, Clim. Dynam., 15, 227–240, 1999b. Turon, J.-L.: Le paynoplancton dans l'environnement actuel de l' Atlantique nordoriental. Evolution climatique et hydrologique depuis le dernier maximum glaciaire, PhD thesis, Bordeaux~1 University, France, 1984. Turon, J.-L., Lézine, A M., and Denèfle. M.: x Land–sea correlations for the last glaciation inferred from a~pollen and dinocyst record from the Portuguese margin, Quaternary Res., 59, 88–96, 2003. Walter, W., Harnickell, E., and Mueller-Dombois, D.: Climate Diagram Maps, Springer-Verlag, Berlin-Heidelberg, 1975. Watts, W A., Allen, J R M., Huntley, B., and Fritz, S C.: Vegetation history and climate of the last 15 000 years at Laghi di Monticchio, southern Italy, Quaternary Sci. Rev., 15, 113–132, 1996. Woodward, F I.: Climate and plant distribution., Cambridge Univ. Press, Cambridge, England, 1987. Wohlfarth, B.: The chronology of the last termination: A~review of radiocarbon-dated, high-resolution terrestrial stratigraphies, Quaternary Sci. Rev., 15(4) 267–284, 1996. Wu, H., Guiot, J., Brewer, S., and Guo, Z.: Climatic changes in Eurasia and Africa at the last glacial maximum and mid-Holocene: Reconstruction from pollen data using inverse vegetation modelling, Clim. Dynam., 29, 211–229, doi:10.1007/s00382-007-0231-3, 2007.