Universitaet Bern Institute of Plant Sciences swissuniversity.ch  
Plant Sciences





Brigitta Ammann

Prof. em. Dr. Brigitta Ammann

e-mail Brigitta.Ammann@ips.unibe.ch
internet http://www.botany.unibe.ch/emeriti/paleo.php

pictures of the farewell party

  • Some important biological processes are too slow for our observations and experimentation (e.g. for 3-year project funding), such as changes in species composition of forests, species migration, and soil formation. Therefore we need paleoecology.

  • Biotic responses to past climatic changes (CC) need to be understood for testing models and their predictions about future CC, because CC in the past was (in some cases) of higher amplitude and higher rate of change than what we know from meteorological records.

  • Mountain ecosystems provide great opportunities to study the interplay between species assemblages and environmental conditions (e.g. climate or soils), because in mountains the environmental gradients are steep. Both terrestrial and aquatic ecosystems respond to these gradients and their changes over time.

2016 2014
  • Ammann, B; van der Knaap, WO; Lang, G; Gaillard, MJ; Kaltenrieder, P; Rosch, M; Finsinger, W; Wright, HE; Tinner, W
    The potential of stomata analysis in conifers to estimate presence of conifer trees: examples from the Alps
    Vegetation History and Archaeobotany 23 (3): 249-264 MAY 2014

  • Ammann, B; van Raden, UJ; Schwander, J; Eicher, U; Gilli, A; Bernasconi, SM; van Leeuwen, JFN; Lischke, H; Brooks, SJ; Heiri, O; Nováková, K; van Hardenbroek, M; von Grafenstein, U; Belmecheri, S; van der Knaap, WO; Magny, M; Eugster, W; Colombaroli, D; Nielsen, E; Tinner, W; Wright, HE
    Responses to rapid warming at Termination 1a at Gerzensee (Central Europe): Primary succession, albedo, soils, lake development, and ecological interactions
    Palaeogeography, Palaeoclimatology, Palaeoecology 391 B: 111-131 DEC 2013

  • Lischke, H; von Grafenstein, U; Ammann, B
    Forest dynamics during the transition from the Oldest Dryas to the Bølling–Allerød at Gerzensee—a simulation study
    Palaeogeography, Palaeoclimatology, Palaeoecology 391: 60-73 DEC 2013

  • Ammann, B; van Leeuwen, JFN; van der Knaap, WO; Lischke, H; Heiri, O; Tinner, W
    Vegetation responses to rapid warming and to minor climatic fluctuations during the Late-Glacial Interstadial (GI-1) at Gerzensee (Switzerland)
    Palaeogeography, Palaeoclimatology, Palaeoecology 391: 40-59 DEC 2013

  • Ammann, B; von Grafenstein, U; van Raden U
    Biotic responses to rapid warming about 14,685 yr BP: Introduction to a case study at Gerzensee (Switzerland)
    Palaeogeography, Palaeoclimatology, Palaeoecology 391: 3-12 DEC 2013

  • Ammann, B; Wright, HE; Stefanova, V; van Leeuwen, JFN; van der Knaap, WO; Colombaroli, D; Tinner, W
    The role of peat decomposition in patterned mires: a case study from the central Swiss Alps
    Preslia 85: 317-332 AUG 2013

  • Connor, SE; van Leeuwen, JFN; Rittenour, TM; van der Knaap, WO; Ammann B; Björck, S
    The ecological impact of oceanic island colonization - a palaeoecological perspective from the Azores
    Journal of Biogeography 39 (6): 1007-1023 June 2012

  • Lotter, AF; Heiri, O; Brooks, S; van Leeuwen, JFN; Eicher, U; Ammann, B
    Rapid summer temperature changes during Termination 1a: high-resolution multi-proxy climate reconstructions from Gerzensee (Switzerland)
    Quaternary Science Reviews 36: 103–113 FEB 2012

  • Ammann, B
    Reconstruction of vegetation as a tool to understand resources of the past
    in: Masserey, C. (ed.): News of Ancient Colchis - Archaeological, palaeobotanical and historical research, Georgian and Swiss cooperation: 15-21 ADAMANTIS.press Lausanne SEP 2010 [pdf]

  • van der Knaap, WO; van Leeuwen, JFN; Svitavská-Svobodová, H; Pidek, IA; Kvavadze, E; Chichinadze, M; Giesecke, T; Kaszewsk, BM; Oberli, F; Kalniņa, L; Pardoe, HS; Tinner, W; Ammann, B
    Annual pollen traps reveal the complexity of climatic control on pollen productivity in Europe and the Caucasus
    Vegetation History and Archaeobotany 19, 285–307 AUG 2010 [Open Access]

  • Vescovi, E; Ammann, B; Ravazzi, C; Tinner, W
    A new Late-glacial and Holocene record of vegetation and fire history from Lago del Greppo, northern Apennines, Italy
    Vegetation History and Archaeobotany 19 (3): 219–233 MAY 2010

  • Wehrli, M; Mitchell, EAD; van der Knaap, WO; Ammann, B; Tinner, W
    Effects of climatic change and bog development on Holocene tufa formation in the Lorze Valley (central Switzerland)
    The Holocene 20 (3): 325-336 MAY 2010

  • Andrič, M; Massaferro, J; Eicher, U; Ammann, B; Leuenberger, MC; Martinčič, A; Marinova, E; Brancelj, A
    A multi-proxy Late-glacial palaeoenvironmental record from Lake Bled, Slovenia
    Hydrobiologia 631 (1): 121-141 SEP 2009

  • Ilyashuk, B; Gobet, E; Heiri, O; Lotter, A.F; van Leeuwen, JFN; van der Knaap, W.O; Ilyashuk, E; Oberli, F; and Ammann, B
    Lateglacial environmental and climatic changes at the Maloja Pass, Central Swiss Alps, as recorded by chironomids and pollen
    Quaternary Science Reviews 28: 1340–1353 JUN 2009

  • Finsinger, W; Belis, C; Blockley, SPE; Eicher, U; Leuenberger, M; Lotter, AF; Ammann B
    Temporal patterns in lacustrine stable isotopes as evidence for climate change during the late glacial in the Southern European Alps
    Journal of Paleolimnology 40 (3): 885-895 OCT 2008

  • Ammann, B; Eicher, U; Schwander, J; von Grafenstein, U; Nováková, K; Brooks, S; van Leeuwen, J; Wick, L; van der Knaap, P
    Biotic responses to rapid climatic changes during the Late Glacial. High-resolution biostratigraphies and biological processes
    Geographica Helvetica 63 (3): 160-166 2008

  • Belis, CA; Finsinger, W; Ammann, B
    The late glacial–Holocene transition as inferred from ostracod and pollen records in the Lago Piccolo di Avigliana (Northern Italy)
    Palaeogeography, Palaeoclimatology, Palaeoecology 264 (3-4): 306-317 JUL 2008

  • Valsecchi, V; Finsinger, W; Tinner, W; Ammann, B
    Testing the influence of climate, human impact and fire on the Holocene population expansion of Fagus sylvatica in the southern Prealps (Italy)
    The Holocene 18 (4): 603-614 APR 2008

  • Sjögren, P; van der Knaap, WO; Kaplan. JO; van Leeuwen, J; Ammann, B
    A pilot study on pollen representation of mountain valley vegetation in the central Alps
    Review of Palaeobotany and Palynology 149: 208-218 APR 2008

  • Beer, R; Kaiser, F; Schmidt, K; Ammann, B; Carraro, G; Grisa, E; Tinner, W
    Vegetation history of the walnut forests in Kyrgyzstan (Central Asia): natural or anthropogenic origin?
    Quaternary Science Reviews 27 (5-6): 621-632 MAR 2008

  • Blyakharchuk, TA; Wright, HE; Borodavko, PS; van der Knaap, WO; Ammann, B
    The role of pingos in the development of the Dzhangyskol lake-pingo complex, central Altai Mountains, southern Siberia
    Palaeogeography, Palaeoclimatology, Palaeoecology 257 (4): 404-420 FEB 2008

  • van Leeuwen, JFN; van der Knaap, WO; Ammann, B
    The native or introduced status of plant species determined by fossil pollen in Galapagos and the Azores. Abstract 1212. XVII INQUA Congress – The Tropics: Heat Engine of the Quaternary
    Quaternary International 167-168 (Supp. 1): 430 JUL 2007

  • Vescovi, E; Ravazzi, C; Arpenti, E; Finsinger, W; Pini, R; Valsecchi, V; Wick, L; Ammann, B; Tinner, W
    Interactions between climate and vegetation during the Lateglacial period as recorded by lake and mire sediment archives in Northern Italy and Southern Switzerland
    Quaternary Science Reviews 26 (11-12): 1650–1669 JUN 2007

  • Blyakharchuk, TA; Wright, HE; Borodavko, PS; van der Knaap, WO; Ammann, B
    Late Glacial and Holocene vegetational history of the Altai Mountains (southwestern Tuva Republic, Siberia)
    Palaeogeography, Palaeoclimatology, Palaeoecology, 245 (3-4): 518-534 MAR 2007

  • Ammann, B; Birks, HH; Walanus, A; Wasylikowa, K
    Late Glacial Multidisciplinary Studies
    In: Elias S.A. (ed.) Encyclopedia of Quaternary Science Elsevier, Amsterdam 2475-2486

  • Finsinger, W; Bigler, C; Krähenbühl, U; Lotter, AF; Ammann, B
    Human impacts and eutrophication patterns during the past ~200 years at Lago Grande di Avigliana (N. Italy)
    Journal of Paleolimnology 36 (1) 55-67  JUL 2006

  • Becker, A; Ammann, B; Anselmetti, FS; Hirt, AM; Magny, M; Millet, L; Rachoud, AM; Sampietro, G; Wüthrich, C
    Paleoenvironmental studies on Lake Bergsee, Black Forest, Germany
    Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 240 (3): 405-445 JUL 2006

  • Finsinger, W; Tinner, W; van der Knaap, WO; Ammann, B
    The expansion of hazel (Corylus avellana L.) in the southern Alps: a key for understanding its early Holocene history in Europe?
    Quaternary Science Reviews 25 (5-6): 612-631

  • Valsecchi, V; Tinner, W; Finsinger, W; Ammann, B
    Human impact during the Bronze Age on the vegetation at Lago Lucone (northern Italy)
    Vegetation History and Archaeobotany 15 (2): 99-113 MAR 2006

  • Bendel, M; Tinner, W; Ammann, B
    Forest Dynamics of the last centuries in the Pfyn forest (Valais, Switzerland, Central Alps): Interaction of pine (Pinus sylvestris) and oak (Quercus sp.) under changing land use and fire frequency.
    The Holocene, 16 (1): 81-89

  • Tinner, W; Ammann, B
    Long-term responses of mountain ecosystems to environmental changes: resilience, adjustments, and vulnerability.
    In: Global Change and Mountain Regions: an overview of current knowledge
    (eds. U. Huber, H. Bugmann, M. Reasoner). Springer, Dordrecht: 133-144

  • Tinner, W; Conedera, M; Ammann, B; Lotter, AF
    Fire ecology north and south of the Alps since the last ice age
    Holocene, 15 (8) 1214-1226 DEC 2005

  • Kaltenrieder, P; Tinner, W; Ammann, B
    Zur Langzeitökologie des Lärchen-Arvengürtels in den südlichen Walliser Alpen
    Botanica Helvetica 115 137-154 DEC 2005

  • Tinner, W; Lotter A.F; Ammann B; Conedera M; Hubschmid, P; van Leeuwen JFN; Wehrli M
    Klima und Landschaftsumgestaltung: palynologische Hinweise zur Komplexität prähistorischer Mensch-Umweltbeziehungen.
    In: Della Casa Ph. & Trachsel, M. (eds.) Wetland Economies and Societies.
    Collectio Archaeologica 3: 57-68

  • Glaser, R; Ammann, B; Brauer, A; Heiri, O; Jacobeit, J; Lotter, AF; Luterbacher, J; Maisch, M; Magny, M; Pfister, C; Tinner, W; Veit, H; Wanner, H
    Palaeoclimate within the River Rhine catchment during Holocene and historic times
    Erdkunde - Archiv für wissenschaftliche Geographie (Archive for Scientific Geography) 59 (3-4) 251-275 DEC 2005

  • Tinner, W; Allgöwer, B; Ammann, B; Conedera, M; Gobet, E; Lotter, AF; Stähli, M;
    Ausmass und Auswirkungen der Waldbrände auf die Vegetation im Laufe der Jahrtausende.
    Schweizerische Zeitschrift für Forstwesen, 156 (9): 325-330 SEP 2005

  • Gobet, E; Tinner, W; Bigler, C; Hochuli, PA; Ammann, B
    Early-Holocene afforestation processes in the lower subalpine belt of the Central Swiss Alps as inferred from macrofossil and pollen records
    The Holocene, vol. 15 (5), pp. 672-686, July 2005

  • van der Knaap, WO; van Leeuwen, JFN; Finsinger, W; Gobet, E; Pini, R; Schweizer, A; Valsecchi, V; Ammann, B
    Migration and population expansion of Abies, Fagus, Picea, and Quercus since 15000 years in and across the Alps, based on pollen-percentage threshold values
    Quaternary Science Reviews, vol 24, no. 5-6, pp. 645-680 March 2005

  • van der Knaap, WO; van Leeuwen, JFN; Ammann, B.
    The first rise and fall of Fagus sylvatica and interactions with Abies alba at Faulenseemoos (Swiss Plateau) 6900-600 cal yr BP
    Acta Palaeobotanica 44 (2): 249-266 2004

  • Gobet E, Hochuli PA, Ammann B, Tinner W
    Vom Urwald zur Kulturlandschaft des Oberengadins - Vegetationsgeschichte der letzten 6200 Jahre
    Jahrbuch der Schweizerischen Gesellschaft für Ur- und Frühgeschichte, 87: 255-270

  • Blyakharchuk, TA; Wright, HE; Borodavko, PS; van der Knaap, WO; Ammann, B
    Late Glacial and Holocene vegetational changes on the Ulagan high-mountain plateau, Altai Mountains, southern Siberia
    Palaeogeography, Palaeoclimatology, Palaeoecology, 209 (1-4): 259-279

  • Tinner, W; Ammann, B
    Reaktionsweisen von Gebirgswäldern – schneller als man denkt
    In: Gamerith, W; Messerli, P; Meusburger, P; Wanner, H (eds.):
    Alpenwelt – Gebirgswelten. Inseln, Brücken, Grenzen. Tagungsbericht und wissenschaftliche Abhandlungen. 54. Deutscher Geographentag: 95 – 101

2003 2002
  • Keller F; Lischke H; Mathis T; Möhl A; Wick L; Ammann B., Kienast F. 2002. Effects of climate, fire, and humans on forest dynamics: forest simulations compared to the palaeological record. Ecological Modelling 152 (2-3): 109-127.

  • Carnelli, A.L; Medella, M; Theurillat, J-P; Ammann, B. 2002: Aluminum in the opal silica reticuls of phytoliths: A new tool in palaeoecological studies. American Journal of Botany 89 (2): 346-351.

  • Buttler, A; Mitchell, E.A.D; Freléchoux, F; van der Knaap, W.O., van Leeuwen, J.F.N; Warner, B.G; Gobat, J.-M; Schweingruber, F., and Ammann, B; 2002. Ruptures multiples dans les tourbières du Jura: changements climatiques et hydrologiques, succession végétales et impacts humains. In: H. Richard and A. Vignot (editors) Équilibres et ruptures dans les écosystèmes durant les 20 derniers millénaires en Europe de l’Ouest – Actes du colloque international de Besançon, septembre 2000. Besançon: Presses Universitaires Franc-Comtoises. Annales Littéraires 730, Série «Environnement, sociétés et archéologie» 3: 331-344.

  • Tinner W. and Ammann B. 2001: Timberline paleoecology in the Alps. PAGES News 9: 9-11.

  • van der Knaap, W.O; van Leeuwen, J.F.N; Fankhauser, A; and Ammann, B; 2001. Erratum to “Palyno-stratigraphy of the last centuries in Switzerland based on 23 lake and mire deposits: chronostratigraphic pollen markers, regional patterns, and local histories” [Rev. Palaeobot. Palynol. 108 (2000) 85-142]. Review of Palaeobotany and Palynology 114: 269-271.

  • Mitchell, E.A.D; van der Knaap, W.O; van Leeuwen, J.F.N; Buttler, A; Warner, B.G; and Gobat, J.-M; 2001. The palaeoecological history of the Praz-Rodet bog (Swiss Jura) based on pollen, plant macrofossils and testate amoebae (Protozoa). The Holocene 11: 65-80.

  • Grosjean, M; van Leeuwen, J.F.N; van der Knaap, W.O; Geyh, M.A., Ammann, B; Tanner, W; Messerli, B; Núñez, L.A; Valero-Garcés, B.L; and Veit, H; 2001. A 22,000 14C year BP sediment and pollen record of climate change from Laguna Miscanti (23°S), northern Chile. Global and Planetary Change 28: 35-51.

  • van der Knaap, W.O; van Leeuwen, J.F.N; and Ammann, B; 2001. Seven years of annual pollen influx at the forest limit in the Swiss Alps studied by pollen traps: relations to vegetation and climate. Review of Palaeobotany and Palynology 117: 31-52.

  • Gedye, SJ; Jones, RT; Tinner, W; Ammann, B; Oldfield, F. 2000: The use of mineral magnetism in the reconstruction of fire history: a case study from Lago di Origlio, Swiss Alps. Palaeogeogr. Palaeoclimatol. Palaeoecol; 164: (1-4) 101-110.

  • Gobet, E; Tinner, W; Hubschmid, P; Jansen, I; Wehrli, M; Ammann, B; Wick, L. 2000: Influence of human impact and bedrock differences on the vegetational history of the Insubrian Southern Alps. Vegetation History and Archaeobotany. 9: (3) 175-187.

  • Tinner, W; Conedera, M; Gobet, E; Hubschmid, P; Wehrli, M; Ammann, B. 2000: A palaeoecological attempt to classify fire sensitivity of trees in the southern Alps. Holocene, 10: (5) 565-574.

  • Ammann, B. 2000.: Biotic responses to rapid climatic changes. An Introduction to a multidisciplinary study of the Younger Dryas and minor climatic oscillations on an altitudenal transect in the Swiss Alps. Palaeogeogr. Paaleoclimatol. Palaeoecol. 159: (3-4) 191-201.

  • Schwander, J; Eicher, U; Ammann, B. 2000: Oxygen isotopes of lake marl at Gerzensee and Leysin (Switzerland), covering the Younger Dryas and two minor oscillations, and their correlation to the GRIP ice core. Palaeogeogr. Palaeoclimatol. Palaeoecol; 159: (3-4) 203-214.

  • von Grafenstein, U; Eicher, U; Erlenkeuser, H; Ruch, P; Schwander, J; Ammann, B. 2000: Isotope signature of the Younger Dryas and two minor oscillations at Gerzensee (Switzerland): Palaeoclimatic and palaeolimnologic interpretation based on bulk and biogenic carbonates. Palaeogeogr. Palaeoclimatol. Palaeoecol. 159: (3-4) 215-229.

  • Tobolski, K; Ammann, B. 2000: Macrofossils as records of plant responses to rapid Late-Glacial climatic changes at three sites in the Swiss Alps. Palaeogeogr. Palaeoclimatol. Palaeoecol. 159: (3-4) 251-259.

  • Ammann, B; Birks, HJB; Brooks, SJ; Eicher, U; von Grafenstein, U; Hofmann, W; Lemdahl, G; Schwander, J; Tobolski, K; Wick, L. 2000: Quantification of Biotic Responses to Rapid Climatic Changes around the Younger Dryas – A Synthesis. Palaeogeogr. Palaeoclimatol. Palaeoecol. 159: (3-4) 313-347.

  • BIRKS, HH; Ammann B. 2000: Two terrestrial records of rapid climatic change during the glacial-Holocene transition (14,000-9,000 calendar years B.P.) from Europe. Proceedings of the National Academy of Sciences, 97 (4): 1390-1394.

  • van der Knaap, WO; van Leeuwen, JFN; Fankhauser, A; Ammann, B. 2000: Palynostratigraphy of the last centuries in Switzerland based on 23 lake and mire deposits: chronostratigraphic pollen markers, regional patterns, and local histories. Review of Palaeobotany and Palynology, 108: (1-2) 85-142.

  • Tinner W. Hubschmid P. Wehrli M. Ammann B. & Conedera M. 1999: Long-term forest fire ecology and dynamics in southern Switzerland. Journal of Ecology, 87: 273-289.

  • Lister, GS; Livingstone, DM; Ammann, B; Ariztegui, D; Haeberli, W; Lotter, AF; Ohlendorf, C; Pfister, C; Schwander, J; Schweingruber, F; Stauffer, B; Sturm, M. 1998. Alpine paleoclimatology VIEWS FROM THE ALPS, 73-169.

  • AMMANN, B; BIRKS, J; BROOKS, S; EICHER, U; von GRAFENSTEIN, U., HOFMANN, W; van der KNAAP, W.O; LEMDAHL, G; SCHWANDER, J; TOBOLSKI, K; and WICK, L. 1998: Wie reagieren aquatische und terrestrische Ökosysteme auf rasche Klimaänderungen?  Vdf Verlag Zürich, reports on NFP31, 101 pp.

  • Tinner, W; Conedera, M; Ammann, B; Gäggeler, HW; Gedye, S; Jones, R; Sägesser B. 1998: Pollen and charcoal in lake sediments compared with historically documented forest fires in southern Switzerland since AD 1920. The Holocene 8: 31-42.

  • van der Knaap, W.O.  and Ammann, B. 1997: Depth-age relationships of 25 well-dated Swiss Holocene pollen sequences archived in the Alpine Palynological Data.Base. Revue de Paléobiologie 16: 433-480.

  • LOTTER, A.F; AMMANN, B; HAJDAS, I; STURM, M; and van LEEUWEN, J. 1996: Faulenseemoos reveisted: New Results from an Old Site. PACT 50-II.5: 133-144.

  • AMMANN, B; GAILLARD, M.-J; and LOTTER, A.F. 1996: Switzerland. In: BERGLUND, B.E; BIRKS, H.J.B; RALSKA-JASIEWICZOWA, M, and WRIGHT, H.E. (eds.): Palaeoecological Events during the last 15 000 years. Regional Syntheses of Paaeoecological Studies of Lakes and Mires in Europe. Wiley, 647-666.

  • Tinner W; B. Ammann & P. Germann 1996: Treeline fluctuations recorded for 12500 years by soil profiles, pollen and plant macrofossils in the Central Swiss Alps. Arctic and Alpine Research 28: 131-147.

  • Tinner, W; Conedera, M; Ammann, B. 1996: Fire history and vegetation paleoecology in southern Switzerland. Abstracts of the workshop Fire Ecology and the European Biota, Toledo 1-3 July 1996: 25-26. Seccion de Ecologia del Fuego, Instituto Universitario de Ciencias Ambientales, Universitad Complutense, Madrid.

  • Conedera, M; Marxer, P; Hofmann, C; Tinner, W; Ammann B. 1996: Forest fire research in Switzerland. Part 1: Fire ecology and history research in the southern part of Switzerland. International Forest Fire News 15: 13-21.

  • AMMANN, B 1995: Changes in plant biodiversity of the Alps during the last 15,000 years. In: CHAPIN F.S; III and KOERNER, Ch. (eds): Arctic and Alpine Biodiversity: Patterns, Causes, and Ecosystem Consequences. Ecological Studies 113: 137-149, Springer.

  • Wick, L; 1994b: Early-Holocene reforestation and vegetation change at a lake near the Alpine forest limit: Lago Basso (2250 m asl), N-Italy. In: Lotter, A.F. and Ammann, B. (Eds.), Festschrift Gerhard Lang. Dissertationes Botanicae 234, 555-563.