van der Knaap, Willem Oscar

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2018

Tinner, Willy; van der Knaap, Willem Oscar; Conedera, Marco; Ammann, Brigitta (2018). Invasionen und Zusammenbrüche von Baumarten nach der Eiszeit. Schweizerische Zeitschrift für Forstwesen, 169(2), pp. 60-68. Schweizerischer Forstverein 10.3188/szf.2018.0060

Connor, Simon E.; Colombaroli, Daniele; Confortini, Federico; Gobet, Erika; Ilyashuk, Boris P.; Ilyashuk, Elena A.; van Leeuwen, Jacqueline F.N.; Lamentowicz, Mariusz; van der Knaap, Willem Oscar; Malysheva, Elena; Marchetto, Aldo; Margalitadze, Nino; Mazei, Yuri; Mitchell, Edward A.D.; Payne, Richard J.; Ammann, Brigitta (2018). Long-term population dynamics: Theory and reality in a peatland ecosystem. Journal of Ecology, 106(1), pp. 333-346. Wiley 10.1111/1365-2745.12865

Carter, Vachel A.; Chiverrell, Richard C.; Clear, Jennifer L.; Kuosmanen, Niina; Moravcová, Alice; Svoboda, Miroslav; Svobodová-Svitavská, Helena; van Leeuwen, Jacqueline F. N.; van der Knaap, Willem Oscar; Kuneš, Petr (2018). Quantitative Palynology Informing Conservation Ecology in the Bohemian/Bavarian Forests of Central Europe. Frontiers in Plant Science, 8(2268) Frontiers 10.3389/fpls.2017.02268

2017

Gałka, Mariusz; Tobolski, Kazimierz; Lamentowicz, Łukasz; Ersek, Vasile; Jassey, Vincent E.J.; Lamentowicz, Mariusz; van der Knaap, Willem Oscar (2017). Unveiling exceptional Baltic bog ecohydrology, autogenic succession and climate change during the last 2000 years in CE Europe using replicate cores, multi-proxy data and functional traits of testate amoebae. Quaternary science reviews, 156, pp. 90-106. Elsevier 10.1016/j.quascirev.2016.11.034

2016

Krisai, Robert; van Leeuwen, Jacqueline F. N.; van der Knaap, Willem Oscar (2016). Present-day vegetation and the Holocene and recent development of Egelsee-Moor, Salzburg province, Austria. Vegetation History and Archaeobotany, 25(6), pp. 555-568. Springer 10.1007/s00334-016-0568-9

Tinner, Willy; Vescovi, Elisa; van Leeuwen, Jacqueline F. N.; Colombaroli, Daniele; Henne, Paul Daniel; Boltshauser-Kaltenrieder, Petra; Morales del Molino, César; Beffa, Giorgia Zoe; Gnaegi, Bettina; van der Knaap, Willem Oscar; La Mantia, Tommaso; Pasta, Salvatore (2016). Holocene vegetation and fire history of the mountains of Northern Sicily (Italy). Vegetation History and Archaeobotany, 25(5), pp. 499-519. Springer 10.1007/s00334-016-0569-8

Fournier, Bertrand; Coffey, Emily E. D.; van der Knaap, Willem Oscar; Fernández, Leonardo D.; Bobrov, Anatoly; Mitchell, Edward A. D. (2016). A legacy of human-induced ecosystem changes: spatial processes drive the taxonomic and functional diversities of testate amoebae in Sphagnum peatlands of the Galápagos. Journal of Biogeography, 43(3), pp. 533-543. Wiley 10.1111/jbi.12655

Ruosch, Melanie; Spahni, Renato; Joos, Fortunat; Henne, Paul Daniel; van der Knaap, Willem Oscar; Tinner, Willy (2016). Past and future evolution of Abies alba forests in Europe - comparison of a dynamic vegetation model with palaeo data and observations. Global Change Biology, 22(2), pp. 727-740. Blackwell Science 10.1111/gcb.13075

2015

Tollefsrud, Mari Mette; Latałowa, Małgorzata; van der Knaap, Willem Oscar; Brochmann, Christian; Sperisen, Christoph (2015). Late Quaternary history of North Eurasian Norway spruce ( Picea abies ) and Siberian spruce ( Picea obovata ) inferred from macrofossils, pollen and cytoplasmic DNA variation. Journal of Biogeography, 42(8), pp. 1431-1442. Wiley 10.1111/jbi.12484

Sjögren, Per; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F.N. (2015). Pollen dispersal properties of Poaceae and Cyperaceae: First estimates of their absolute pollen productivities. Review of palaeobotany and palynology, 216, pp. 123-131. Elsevier 10.1016/j.revpalbo.2015.02.004

Trondman, A. -K.; Gaillard, M. -J.; Mazier, F.; Sugita, S.; Fyfe, R.; Nielsen, A. B.; Twiddle, C.; Barratt, P.; Birks, H. J. B.; Bjune, A. E.; Bjorkman, L.; Brostrom, A.; Caseldine, C.; David, R.; Dodson, J.; Doerfler, W.; Fischer, E.; van Geel, B.; Giesecke, T.; Hultberg, T.; ... (2015). Pollen-based quantitative reconstructions of Holocene regional vegetation cover (plant-functional types and land-cover types) in Europe suitable for climate modelling. Global Change Biology, 21(2), pp. 676-697. Blackwell Science 10.1111/gcb.12737

Gałka, M.; Miotk-Szpiganowicz, G.; Marczewska, M.; Barabach, J.; van der Knaap, Willem Oscar; Lamentowicz, M. (2015). Palaeoenvironmental changes in Central Europe (NE Poland) during the last 6200 years reconstructed from a high-resolution multi-proxy peat archive. Holocene, 25(3), pp. 421-434. Sage 10.1177/0959683614561887

2014

Ammann, Brigitta; van der Knaap, Willem Oscar; Lang, Gerhard; Gaillard, Marie-Jose; Boltshauser-Kaltenrieder, Petra; Roesch, Manfred; Finsinger, Walter; Wright, Herbert E.; Tinner, Willy (2014). The potential of stomata analysis in conifers to estimate presence of conifer trees: examples from the Alps. Vegetation History and Archaeobotany, 23(2), pp. 249-264. Springer 10.1007/s00334-014-0431-9

Strandberg, G.; Kjellström, E.; Poska, A.; Wagner, S.; Gaillard, M.-J.; Trondman, A.-K.; Mauri, A.; Davis, B. A. S.; Kaplan, Jed; Birks, H. J. B.; Bjune, A. E.; Fyfe, R.; Giesecke, T.; Kalnina, L.; Kangur, M.; van der Knaap, Willem Oscar; Kokfelt, U.; Kune\v, P.; Latał owa, M.; Marquer, L.; ... (2014). Regional climate model simulations for Europe at 6 and 0.2 k BP: sensitivity to changes in anthropogenic deforestation. Climate of the past, 10(2), pp. 661-680. Copernicus Publications 10.5194/cp-10-661-2014

Froyd, Cynthia A.; Coffey, Emily E. D.; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F. N.; Tye, Alan; Willis, Katherine J. (2014). The ecological consequences of megafaunal loss: giant tortoises and wetland biodiversity. Ecology Letters, 17(2), pp. 144-154. Wiley-Blackwell Publishing 10.1111/ele.12203

Miehe, Sabine; Miehe, Georg; van Leeuwen, Jacqueline F. N.; Wrozyna, Claudia; van der Knaap, Willem Oscar; Duo, La; Haberzettl, Torsten (2014). Persistence of Artemisia steppe in the Tangra Yumco Basin, west-central Tibet, China: despite or in consequence of Holocene lake-level changes? Journal of Paleolimnology, 51(2), pp. 267-285. Kluwer Academic 10.1007/s10933-013-9720-z

Giesecke, Thomas; Davis, Basil; Brewer, Simon; Finsinger, Walter; Wolters, Steffen; Blaauw, Maarten; de Beaulieu, Jacques-Louis; Binney, Heather; Fyfe, Ralph M.; Gaillard, Marie-José; Gil-Romera, Graciela; van der Knaap, Willem Oscar; Kuneš, Petr; Kühl, Norbert; van Leeuwen, Jacqueline; Leydet, Michelle; Lotter, André F.; Ortu, Elena; Semmler, Malte and Bradshaw, Richard H. W. (2014). Towards mapping the late Quaternary vegetation change of Europe. Vegetation History and Archaeobotany, 23(1), pp. 75-86. Springer 10.1007/s00334-012-0390-y

2013

Pfeiffer, Mirjam; van Leeuwen, Jacqueline F. N.; van der Knaap, Willem Oscar; Kaplan, Jed (2013). The effect of abrupt climatic warming on biogeochemical cycling and N2O emissions in a terrestrial ecosystem. Palaeogeography, Palaeoclimatology, Palaeoecology, 391(Part B), 74 - 83. Elsevier 10.1016/j.palaeo.2012.06.015

Ammann, Brigitta; van Raden, Ulrike J.; Schwander, Jakob; Eicher, Ueli; Gilli, Adrian; Bernasconi, Stefano M.; van Leeuwen, Jacqueline F. N.; Lischke, Heike; Brooks, Stephen J.; Heiri, Oliver; Nováková, Katařina; van Hardenbroek, Maarten; von Grafenstein, Ulrich; Belmecheri, Soumaya; van der Knaap, Willem Oscar; Magny, Michel; Eugster, Werner; Colombaroli, Daniele; Nielsen, Ebbe; Tinner, Willy; ... (2013). Responses to rapid warming at Termination 1a at Gerzensee (Central Europe): Primary succession, albedo, soils, lake development, and ecological interactions. Palaeogeography, Palaeoclimatology, Palaeoecology, 391(Part B), 111 - 131. Elsevier 10.1016/j.palaeo.2013.11.009

Ammann, Brigitta; van Leeuwen, Jacqueline F. N.; van der Knaap, Willem Oscar; Lischke, Heike; Heiri, Oliver; Tinner, Willy (2013). Vegetation responses to rapid warming and to minor climatic fluctuations during the Late-Glacial Interstadial (GI-1) at Gerzensee (Switzerland). Palaeogeography, Palaeoclimatology, Palaeoecology, 391(Part B), 40 - 59. Elsevier 10.1016/j.palaeo.2012.07.010

Nováková, Katařina; van Hardenbroek, M.; van der Knaap, Willem Oscar (2013). Response of subfossil Cladocera in Gerzensee (Swiss Plateau) to early Late Glacial environmental change. Palaeogeography, Palaeoclimatology, Palaeoecology, 391(Part B), pp. 84-89. Elsevier 10.1016/j.palaeo.2012.10.021

Davis, Basil A. S.; Zanon, Marco; Collins, Pamella; Mauri, Achille; Bakker, Johan; Barboni, Doris; Barthelmes, Alexandra; Beaudouin, Celia; Bjune, Anne E.; Bozilova, Elissaveta; Bradshaw, Richard H. W.; Brayshay, Barbara A.; Brewer, Simon; Brugiapaglia, Elisabetta; Bunting, Jane; Connor, Simon E.; Beaulieu, Jacques-Louis; Edwards, Kevin; Ejarque, Ana; Fall, Patricia; ... (2013). The European Modern Pollen Database (EMPD) project. Vegetation History and Archaeobotany, 22(6), pp. 521-530. Berlin: Springer 10.1007/s00334-012-0388-5

Davis, Basil A. S.; Zanon, Marco; Collins, Pamella; Mauri, Achille; Bakker, Johan; Barboni, Doris; Barthelmes, Alexandra; Beaudouin, Celia; Birks, H. John B.; Bjune, Anne E.; Bozilova, Elissaveta; Bradshaw, Richard H. W.; Brayshay, Barbara A.; Brewer, Simon; Brugiapaglia, Elisabetta; Bunting, Jane; Connor, Simon E.; Beaulieu, Jacques-Louis; Edwards, Kevin J.; Ejarque, Ana; ... (2013). Erratum to: The European Modern Pollen Database (EMPD) project. Vegetation History and Archaeobotany, 22(6), p. 531. Berlin: Springer 10.1007/s00334-013-0408-0

Pidek, Irena Agnieszka; Svitavská-Svobodová, Helena; van der Knaap, Willem Oscar; Magyari, Eniko (2013). Pollen percentage thresholds of Abies alba based on 13-year annual records of pollen deposition in modified Tauber traps: perspectives of application to fossil situations. Review of palaeobotany and palynology, 195, pp. 26-36. Amsterdam: Elsevier 10.1016/j.revpalbo.2013.03.006

Ammann, Brigitta; van Leeuwen, Jacqueline F. N.; van der Knaap, Willem Oscar; Colombaroli, Daniele; Tinner, Willy; Wright, Herbert E.; Stefanova, Vania (2013). The role of peat decomposition in patterned mires: a case study from the central Swiss Alps. Preslia, 85(3), pp. 317-332. Praha: Czech Botanical Society

Colombaroli, Daniele; Beckmann, Madlena; van der Knaap, Willem Oscar; Curdy, Philippe; Tinner, Willy (2013). Changes in biodiversity and vegetation composition in the central Swiss Alps during the transition from pristine forest to first farming. Diversity & distributions, 19(2), pp. 157-170. Oxford: Blackwell Scientific Publications 10.1111/j.1472-4642.2012.00930.x

Gałka, Mariusz; Miotk-Szpiganowicz, Grażyna; Goslar, Tomasz; Jęśko, Marcin; van der Knaap, Willem Oscar; Lamentowicz, Mariusz (2013). Palaeohydrology, fires and vegetation succession in the southern Baltic during the last 7500 years reconstructed from a raised bog based on multi-proxy data. Palaeogeography, Palaeoclimatology, Palaeoecology, 370, pp. 209-221. Amsterdam: Elsevier 10.1016/j.palaeo.2012.12.011

Mitchell, Edward A.D.; Payne, Richard J.; van der Knaap, Willem Oscar; Lamentowicz, Łukasz; Gąbka, Maciej; Lamentowicz, Mariusz (2013). The performance of single- and multi-proxy transfer functions (testate amoebae, bryophytes, vascular plants) for reconstructing mire surface wetness and pH. Quaternary Research, 79(1), pp. 6-13. Amsterdam: Elsevier 10.1016/j.yqres.2012.08.004

Connor, Simon E.; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline; Kuneš, Petr (2013). Holocene palaeoclimate and palaeovegetation on the islands of Flores and Pico. In: Fernández-Palacios, J. M.; de Nascimento, L.; Hernández, J. C.; Clemente, S.; Gonzáles, A.; Días-González, J. P. (eds.) Climate change perspectives from the Atlantic: past, present and future (pp. 149-162). Teneriffe, Spain: Servicio de Publicaciones, Universidad de La Laguna

2012

van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F. N. (2012). Pollen from the northern Adriatic Sea tracks human impact on vegetation in mainland Italy. In: Stobbe, Astrid; Tegtmeier, Ursula (eds.) Verzweigungen - Eine Würdigung für A.J. Kalis und J. Meurers-Balke. Frankfurter Archäologische Schriften: Vol. 18 (pp. 301-309). Bonn: Habelt

van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F. N.; Goslar, T.; Krisai, R.; Tinner, Willy (2012). Human impact on vegetation at the Alpine tree-line ecotone during the last millennium: lessons from high temporal and palynological resolution. Vegetation History and Archaeobotany, 21(1), pp. 37-60. Berlin: Springer-Verlag 10.1007/s00334-011-0315-1

Payne, RJ; Lamentowicz, M; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F. N.; Mitchell, EAD; Mazei, Y (2012). Testate amoebae in pollen slides. Review of palaeobotany and palynology, 173, pp. 68-79. Amsterdam: Elsevier 10.1016/j.revpalbo.2011.09.006

Le Roux, G.; Fagel, N.; De Vleeschouwer, F.; Krachler, M.; Debaille, V.; Stille, P.; Mattielli, N.; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F. N.; Shotyk, W. (2012). Volcano- and climate-driven changes in atmospheric dust sources and fluxes since the Late Glacial in Central Europe. Geology, 40(4), pp. 335-338. Boulder, Colo.: Geological Society of America 10.1130/G32586.1

Connor, SE; van Leeuwen, Jacqueline F. N.; Rittenour, TM; van der Knaap, Willem Oscar; Ammann, Brigitta; Björck, S (2012). The ecological impact of oceanic island colonization – a palaeoecological perspective from the Azores. Journal of Biogeography, 39(6), pp. 1007-1023. Oxford: Blackwell Scientific Publications 10.1111/j.1365-2699.2011.02671.x

Connor, SE; Araújo, J; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F. N. (2012). A long-term perspective on biomass burning in the Serra da Estrela, Portugal. Quaternary Science Reviews, 55, pp. 114-124. Oxford: Pergamon 10.1016/j.quascirev.2012.08.007

van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F. N. (2012). Detecting the provenance of Galápagos non-native pollen: The role of humans and air currents as transport mechanisms. Holocene, 22(12), pp. 1373-1383. Los Angeles, Calif.: Sage 10.1177/0959683612449763

2011

van der Knaap, Willem Oscar; Lamentowicz, Mariusz; van Leeuwen, Jacqueline F. N.; Hangartner, Sarah; Leuenberger, Markus; Mauquoy, Dmitri; Goslar, Tomasz; Mitchell, Edward A.D.; Lamentowicz, Lukasz; Kamenik, Christian (2011). A multi-proxy, high-resolution record of peatland development and its drivers during the last millennium from the subalpine Swiss Alps. Quaternary Science Reviews, 30(23-24), pp. 3467-3480. Oxford: Pergamon 10.1016/j.quascirev.2011.06.017

Pokorný, Petr; van der Knaap, Willem Oscar (2011). 15. Brve (Czech Republic): Vegetation development over the last about 2.5 millennia in the Bohemian Lowland close to Prague. Grana, 50(4), pp. 311-313. Oslo: Scandinavian University Press 10.1080/00173134.2011.645551

2010

Gaillard, M.J.; Sugita, S.; Mazier, F.; Trondman, A.K.; Broström, A.; Hickler, T.; Kaplan, J.O.; Kjellström, E.; Kokfelt, U.; Kuneš, P.; Lemmen, C.; Miller, P.; Olofsson, J.; Poska, A.; Rundgren, M.; Smith, B.; Strandberg, G.; Fyfe, R.; Nielsen, A.B.; Alenius, T.; ... (2010). Holocene land-cover reconstructions for studies on land cover-climate feedbacks. Climate of the past, 6(4), pp. 483-499. Göttingen: Copernicus Publications 10.5194/cp-6-483-2010

Giesecke, Thomas; Fontana, Sonia L.; van der Knaap, Willem Oscar; Pardoe, Heather S.; Pidek, Irena A. (2010). From early pollen trapping experiments to the Pollen Monitoring Programme. Vegetation History and Archaeobotany, 19(4), pp. 247-258. Berlin: Springer 10.1007/s00334-010-0261-3

Giesecke, Thomas; van der Knaap, Willem Oscar; Bittmann, Felix (2010). Towards quantitative palynology: using pollen accumulation rates and models of pollen dispersal. Vegetation History and Archaeobotany, 19(4), pp. 243-245. Berlin: Springer 10.1007/s00334-010-0262-2

Lamentowicz, Mariusz; Lamentowicz, Łukasz; van der Knaap, Willem Oscar; Gabka, Maciej; Mitchell, Edward A.D. (2010). Contrasting Species-Environment Relationships in Communities of Testate Amoebae, Bryophytes and Vascular Plants Along the Fen-Bog Gradient. Microbial ecology, 59(3), pp. 499-510. New York, N.Y.: Springer 10.1007/s00248-009-9617-6

Lamentowicz, Mariusz; van der Knaap, Willem Oscar; Lamentowicz, Łukasz; van Leeuwen, Jacqueline F. N.; Mitchell, Edward A.D.; Goslar, Tomasz; Kamenik, Christian (2010). A near-annual palaeohydrological study based on testate amoebae from a sub-alpine mire: surface wetness and the role of climate during the instrumental period. Journal of quaternary science JQS, 25(2), pp. 190-202. Chichester: John Wiley & Sons, Ltd. 10.1002/jqs.1295

Lamentowicz, Mariusz; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F. N.; Hangartner, S.; Mitchell, E.A.D.; Goslar, T.; Tinner, Willy; Kamenik, Christian (2010). A multi-proxy high-resolution approach to reconstructing past environmental change from an Alpine peat archive. PAGES news, 18(1), pp. 13-16. Bern: Pages International Project Office

Pardoe, Heather S.; Giesecke, Thomas; van der Knaap, Willem Oscar; Svitavská-Svobodová, Helena; Kvavadze, Eliso V.; Panajiotidis, Sampson; Gerasimidis, Achilles; Pidek, Irena A.; Zimny, Marcelina; Święta-Musznicka, Joanna; Latałowa, Malgorzata; Noryskiewicz, Agnieszka M.; Bozilova, Elissaveta; Tonkov, Spassimir; Filipova-Marinova, Mariana V.; van Leeuwen, Jacqueline F. N.; Kalniņa, Laimdota (2010). Comparing pollen spectra from modified Tauber traps and moss samples: examples from a selection of forests across Europe. Vegetation History and Archaeobotany, 19(4), pp. 271-283. Berlin: Springer 10.1007/s00334-010-0258-y

Pidek, Irena A.; Svitavská-Svobodová, Helena; van der Knaap, Willem Oscar; Noryśkiewicz, Agnieszka M.; Filbrandt-Czaja, Anna; Noryśkiewicz, Bozena; Latałowa, Malgorzata; Zimny, Marcelina; Święta-Musznicka, Joanna; Bozilova, Elissaveta; Tonkov, Spassimir; Filipova-Marinova, Mariana; Poska, Anneli; Giesecke, Thomas; Gikov, Aleksander (2010). Variation in annual pollen accumulation rates of Fagus along a N–S transect in Europe based on pollen traps. Vegetation History and Archaeobotany, 19(4), pp. 259-270. Berlin: Springer 10.1007/s00334-010-0248-0

Pokorný, Petr; van der Knaap, Willem Oscar (2010). Na Bahne (Czech Republic): Vegetation development over the last 2.5 millennia in the Eastern Bohemian lowland. Grana, 49(1), pp. 79-81. Oslo: Scandinavian University Press 10.1080/00173130903435846

Sjögren, Per; Connor, Simon E.; van der Knaap, Willem Oscar (2010). The development of composite pollen-dispersal functions for estimating absolute pollen productivity in the Swiss Alps. Vegetation History and Archaeobotany, 19(4), pp. 341-349. Berlin: Springer 10.1007/s00334-010-0247-1

van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F. N.; Svitavská-Svobodová, H.; Pidek, I.A.; Kvavadze, E.; Chichinadze, M.; Giesecke, T.; Kaszewsk, B.M.; Oberli, F.; Kalniņa, L.; Pardoe, H.S.; Tinner, Willy; Ammann, Brigitta (2010). Annual pollen traps reveal the complexity of climatic control on pollen productivity in Europe and the Caucasus. Vegetation History and Archaeobotany, 19(4), pp. 285-307. Berlin: Springer-Verlag 10.1007/s00334-010-0250-6

Wehrli, Michael; Mitchell, Edward A.D.; van der Knaap, Willem Oscar; Ammann, Brigitta; Tinner, Willy (2010). Effects of climatic change and bog development on Holocene tufa formation in the Lorze Valley (central Switzerland). Holocene, 20(3), pp. 325-336. Los Angeles, Calif.: Sage 10.1177/0959683609351901

2009

Tinner, Willy; van Leeuwen, Jacqueline; Colombaroli, Daniele; Vescovi, Elisa; van der Knaap, Willem Oscar; Henne, Paul D.; Pasta, Salvatore; D'Angelo, Stefania; La Mantia, Tommaso (2009). Holocene environmental and climatic changes at Gorgo Basso, a coastal lake in southern Sicily, Italy. Quaternary Science Reviews, 28(15-16), pp. 1498-1510. Oxford: Pergamon 10.1016/j.quascirev.2009.02.001

Goslar, Tomasz; van der Knaap, Willem Oscar; Kamenik, Christian; van Leeuwen, Jacqueline F. N. (2009). Free-shape C-14 age-depth modelling of an intensively dated modern peat profile. Journal of quaternary science JQS, 24(5), pp. 481-499. Chichester: John Wiley & Sons, Ltd. 10.1002/jqs.1283

Ilyashuk, Boris; Gobet, Erika; Heiri, Oliver; Lotter, André F.; van Leeuwen, Jacqueline; van der Knaap, Willem Oscar; Ilyashuk, Elena; Oberli, Florencia; Ammann, Brigitta (2009). Lateglacial environmental and climatic changes at the Maloja Pass, Central Swiss Alps, as recorded by chironomids and pollen. Quaternary Science Reviews, 28(13-14), pp. 1340-1353. Oxford: Pergamon 10.1016/j.quascirev.2009.01.007

Kamenik, Christian; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F. N.; Goslar, Tomasz (2009). Pollen/climate calibration based on a near-annual peat sequence from the Swiss Alps. Journal of quaternary science JQS, 24(5), pp. 529-546. Chichester: John Wiley & Sons, Ltd. 10.1002/jqs.1266

van der Knaap, Willem Oscar (2009). Estimating pollen diversity from pollen accumulation rates: a method to assess taxonomic richness in the landscape. Holocene, 19(1), pp. 159-163. Los Angeles, Calif.: Sage 10.1177/0959683608098962

Lamentowicz, Mariusz; Milecka, Krystyna; Galka, Mariusz; Cedro, Anna; Pawlyta, Jacek; Piotrowska, Natalia; Lamentowicz, Lukasz; van der Knaap, Willem Oscar (2009). Climate and human induced hydrological change since AD 800 in an ombrotrophic mire in Pomerania (N Poland) tracked by testate amoebae, macro-fossils, pollen and tree rings of pine. Boreas, 38(2), pp. 214-229. Oxford: Wiley-Blackwell 10.1111/j.1502-3885.2008.00047.x

2008

Ammann, Brigitta; Eicher, Ueli; Schwander, Jakob; von Grafenstein, Uli; Nováková, Katerina; Brooks, Stephen; van Leeuwen, Jacqueline; Wick, Lucia; van der Knaap, Willem Oscar (2008). Biotic responses to rapid climatic changes during the Late Glacial. High-resolution biostratigraphies and biological processes. Geographica Helvetica, 63(3), pp. 160-166. Copernicus Publications 10.5194/gh-63-160-2008

Blyakharchuk, T.A.; Wright, H.E.; Borodavko, P.S.; van der Knaape, Willem Oscar; Ammann, Brigitta (2008). The role of pingos in the development of the Dzhangyskol lake-pingo complex, central Altai Mountains, southern Siberia. Palaeogeography, Palaeoclimatology, Palaeoecology, 257(4), pp. 404-420. Amsterdam: Elsevier 10.1016/j.palaeo.2007.09.015

Pearman, Peter B.; Randin, Christophe F.; Broennimann, Olivier; Vittoz, Pascal; van der Knaap, Willem Oscar; Engler, Robin; Le Lay, Gwenaelle; Zimmermann, Niklaus E.; Guisan, Antoine (2008). Prediction of plant species distributions across six millennia. Ecology Letters, 11(4), pp. 357-369. Oxford: Wiley-Blackwell Publishing 10.1111/j.1461-0248.2007.01150.x

Sjögren, Per; van der Knaap, Willem Oscar; Huusko, Antti; van Leeuwen, Jacqueline (2008). Pollen productivity, dispersal, and correction factors for major tree taxa in the Swiss Alps based on pollen-trap results. Review of palaeobotany and palynology, 152(3-4), pp. 200-210. Amsterdam: Elsevier 10.1016/j.revpalbo.2008.05.003

Sjögren, Per; van der Knaap, Willem Oscar; Kaplan, Jed O.; van Leeuwen, Jacqueline; Ammann, Brigitta (2008). A pilot study on pollen representation of mountain valley vegetation in the central Alps. Review of palaeobotany and palynology, 149(3-4), pp. 208-218. Amsterdam: Elsevier 10.1016/j.revpalbo.2007.12.006

Stefanova, Ivanka; van Leeuwen, Jacqueline; van der Knaap, Willem Oscar (2008). Contributions to the European Pollen Database - 2. Loch Laxford (north-west Scotland, UK). Grana, 47(1), pp. 78-79. Oslo: Scandinavian University Press 10.1080/00173130801987740

Tollefsrud, Mari Mette; Kissling, Roy; Gugerli, Felix; Johnson, Øystein; Skroppa, Tore; Cheddadi, Rachid; van der Knaap, Willem Oscar; Latalowa, Malgorzata; Terhürne-Berson, Ruth; Litt, Thomas; Geburek, Thomas; Brochmann, Christian; Sperisen, Christoph (2008). Genetic consequences of glacial survival and postglacial colonization in Norway spruce: combined analysis of mitochondrial DNA and fossil pollen. Molecular Ecology, 17(18), pp. 4134-4150. Oxford: Wiley-Blackwell 10.1111/j.1365-294X.2008.03893.x

van Leeuwen, Jacqueline; Froyd, Cynthia A.; van der Knaap, Willem Oscar; Coffey, Emily E.; Tye, Alan; Willis, Katherine J. (2008). Fossil Pollen as a Guide to Conservation in the Galapagos (Brevia). Science, 5905(322), p. 1206. Washington, D.C.: American Association for the Advancement of Science 10.1126/science.1163454

van Leeuwen, Jacqueline; van der Knaap, Willem Oscar (2008). Contributions to the European Pollen Database - 3. Fleck's Loch Bog (Foula, Shetland, Scotland, UK). Grana, 47(2), pp. 171-173. Oslo: Scandinavian University Press 10.1080/00173130802113809

2007

Blyakharchuk, Tatiana; Wright, Herbert; Borodavko, Pavel; van der Knaap, Willem Oscar; Ammann, Brigitta (2007). Late Glacial and Holocene vegetational history of the Altai Mountains (southwestern Tuva Republic, Siberia). Palaeogeography, Palaeoclimatology, Palaeoecology, 245(3-4), pp. 518-534. Amsterdam: Elsevier 10.1016/j.palaeo.2006.09.010

Jankovska, Vlasta; Kunes, Petr; van der Knaap, Willem Oscar (2007). 1. Flaje-Kiefern (Krusne Hory Mountains): Late Glacial and Holocene vegetation development. Grana, 46(3), pp. 214-216. Oslo: Scandinavian University Press 10.1080/00173130701526341

Loader, N.J.; McCarroll, D; Van der Knaap, Willem Oscar; Robertson, I; Gagen, M (2007). Characterizing carbon isotopic variability in Sphagnum. Holocene, 17(3), pp. 403-410. Los Angeles, Calif.: Sage 10.1177/0959683607076474

Soepboer, Welmoed; Sugita, Shinya; Lotter, André F.; van Leeuwen, Jacqueline F. N.; van der Knaap, Willem Oscar (2007). Pollen productivity estimates for quantitative reconstruction of vegetation cover on the Swiss Plateau. Holocene, 17(1), pp. 65-77. Los Angeles, Calif.: Sage 10.1177/0959683607073279

2006

Sjoegren, Per; van Leeuwen, Jacqueline; van der Knaap, Willem Oscar; van der Borg, Kaas (2006). The effect of climate variability on pollen productivity, AD 1975-2000, recorded in a Sphagnum peat hummock. Holocene, 16(2), pp. 277-286. Los Angeles, Calif.: Sage 10.1191/0959683606hl924rp

Magri, Donatella; Vendramin, Giovanni; Comps, Bernard; Dupanloup, Isabelle; Geburek, Thomas; Gomory, Dusan; Latalowa, Matgorzata; Litt, Thomas; Paule, Ladislav; Roure, Joan Maria; Tantau, Ioan; van der Knaap, Willem Oscar; Petit, Rémy; de Beaulieu, Jacques-Louis; Jackson, Steven (2006). A new scenario for the Quaternary history of European beech populations: palaeobotanical evidence and genetic consequences. New Phytologist, 171(1), pp. 199-221. Oxford: Wiley-Blackwell 10.1111/j.1469-8137.2006.01740.x

Finsinger, Walter; Tinner, Willy; van der Knaap, Willem Oscar; Ammann, Brigitta (2006). 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), pp. 612-631. Oxford: Pergamon 10.1016/j.quascirev.2005.05.006

Kalis, Arie; van der Knaap, Willem Oscar; Schweizer, Astrid; Urz, Ralf (2006). A three thousand year succession of plant communities on a valley bottom in the Vosges Mountains, NE France, reconstructed from fossil pollen, plant macrofossils, and modern phytosociological communities. Vegetation History and Archaeobotany, 15(4), pp. 377-390. Berlin: Springer-Verlag 10.1007/s00334-006-0065-7

Latalowa, Malgorzata; van der Knaap, Willem Oscar (2006). Late Quaternary expansion of Norway spruce Picea abies (L.) Karst. in Europe according to pollen data. Quaternary Science Reviews, 25(21-22), pp. 2780-2805. Oxford: Pergamon 10.1016/j.quascirev.2006.06.007

Lotter, André F.; Heiri, Oliver; Hofmann, Wolfgang; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline; Walker, Ian; Wick, Lucia (2006). Holocene timber-line dynamics at Bachalpsee, a lake at 2265 m a.s.l. in the northern Swiss Alps. Vegetation History and Archaeobotany, 15(4), pp. 295-307. Berlin: Springer 10.1007/s00334-006-0060-z

van der Knaap, Willem Oscar; Tinner, Willy; Lotter, André F.; Hicks, Sheila (2006). Preface of the special issue "Multidisciplinary reconstructions in palaeoecology the diversity of ways and means". Vegetation History and Archaeobotany, 15(4), p. 233. Berlin: Springer-Verlag 10.1007/s00334-006-0071-9

2005

Goslar, T; van der Knaap, Willem Oscar; Hicks, S; Andric, M; Czernik, J; Goslar, E; Rasanen, S; Hyotyla, H (2005). Radiocarbon dating of modern peat profiles: Pre- and post-bomb C-14 variations in the construction of age-depth models. Radiocarbon, 47(1), pp. 115-134. Arizona Board of Regents, University of Arizona

van der Knaap, Willem Oscar; van Leeuwen, Jacqueline; Finsinger, Walter; Gobet, Erika; Pini, Roberta; Schweizer, Astrid; Valsecchi, Verushka; Ammann, Brigitta (2005). 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, 24(5-6), pp. 645-680. Elsevier 10.1016/j.quascirev.2004.06.013

Shotyk, W.; Goodsite, M.E.; Roos-Barraclough, F.; Givelet, N.; Le Roux, G.; Weiss, D.; Cheburkin, A.K.; Knudsen, K.; Heinemeier, J.; van der Knaap, Willem Oscar; Norton, S.A.; Lohse, C. (2005). Accumulation rates and predominant atmospheric sources of natural and anthropogenic Hg and Pb on the Faroe Islands. Geochimica et cosmochimica acta, 69(1), pp. 1-17. Elsevier Science 10.1016/j.gca.2004.06.011

2004

Blyakharchuk, T.A; Wright, H.E; Borodavko, P.S; van der Knaap, Willem Oscar; Ammann, Brigitta (2004). Late Glacial and Holocene vegetational changes on the Ulagan high-mountain plateau, Altai Mountains, southern Siberia. Palaeogeography, Palaeoclimatology, Palaeoecology, 209(1-4), pp. 259-279. Elsevier 10.1016/j.palaeo.2004.02.011

Roos-Barraclough, Fiona; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline; Shotyk, W. (2004). A Late-glacial and Holocene record of climatic change from a Swiss peat humification profile. Holocene, 14(1), pp. 7-19. Sage 10.1191/0959683604hl685rp

2003

Wick, Lucia; van Leeuwen, Jacqueline; van der Knaap, Willem Oscar; Lotter, André F. (2003). Holocene vegetation development in the catchment of Sagistalsee (1935 m asl), a small lake in the Swiss Alps. Journal of Paleolimnology, 30(3), pp. 261-272. Kluwer Academic 10.1023/A:1026088914129

van der Knaap, Willem Oscar; van Leeuwen, Jacqueline (2003). Climate-pollen relationships AD 1901-1996 in two small mires near the forest limit in the northern and central Swiss Alps. Holocene, 13(6), pp. 809-828. Sage 10.1191/0959683603hl657rp

Heiri, Oliver; Wick, Lucia; van Leeuwen, Jacqueline; van der Knaap, Willem Oscar; Lotter, André F. (2003). Holocene tree immigration and the chironomid fauna of a small Swiss subalpine lake (Hinterburgsee, 1515 m asl). Palaeogeography, Palaeoclimatology, Palaeoecology, 189(1-2), pp. 35-53. Elsevier 10.1016/S0031-0182(02)00592-8

2002

Dapples, Florence; Lotter, André F.; van Leeuwen, Jacqueline; van der Knaap, Willem Oscar; Dimitriadis, Sophia; Oswald, Daniel (2002). Paleolimnological evidence for increased landslide activity due to forest clearing and land-use since 3600 cal BP in the western Swiss Alps. Journal of Paleolimnology, 27(2), pp. 239-248. Springer 10.1023/A:1014215501407

2001

van der Knaap, Willem Oscar; van Leeuwen, Jacqueline; Ammann, Brigitta (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(1-3), pp. 31-52. Elsevier 10.1016/S0034-6667(01)00075-6

Grosjean, Martin; van Leeuwen, Jacqueline; van der Knaap, Willem Oscar; Geyh, M.A; Ammann, Brigitta; Tanner, Willi; Messerli, Bruno; Núñez, L.A.; Valero-Garcés, B.L.; Veit, Heinz (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(1-4), pp. 35-51. Elsevier Science 10.1016/S0921-8181(00)00063-1

Goodsite, Michael; Rom, Werner; Heinemeier, Jan; Lange, Todd; Ooi, Suat; Appleby, Peter; Shotyk, William; van der Knaap, Willem Oscar; Lohse, Christian; Hansen, Torben (2001). High-resolution AMS (super 14) C dating of post-bomb peat archives of atmospheric pollutants. Radiocarbon, 43(2B), pp. 495-515. Cambridge University Press

Mitchell, E.A.D.; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline; Buttler, A.; Warner, B.G.; Gobat, J-M. (2001). The palaeoecological history of the Praz-Rodet bog (Swiss Jura) based on pollen, plant macrofossils and testate amoebae (Protozoa). Holocene, 11(1), pp. 65-80. Sage 10.1191/095968301671777798

2000

van der Knaap, Willem Oscar; van Leeuwen, Jacqueline; Fankhauser, Andreas; Ammann, Brigitta (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), pp. 85-142. Elsevier 10.1016/S0034-6667(99)00035-4

Lotter, André F.; Hofmann, Wolfgang; Kamenik, Christian; Lami, Andrea; Ohlendorf, Christian; Sturm, Michael; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline (2000). Sedimentological and biostratigraphical analyses of short sediment cores from Hagelseewli (2339 m a.s.l.) in the Swiss Alps. Journal of limnology, 59(1s), pp. 53-64. PAGEPress 10.4081/jlimnol.2000.s1.53

1998

Shotyk, W.; Weiss, D.; Appleby, P. G.; Cheburkin, A. K.; Frei, R.; Gloor, M.; Kramers, Jan Dirk; Reese, S.; van der Knaap, Willem Oscar (1998). History of Atmospheric Lead Deposition Since 12,370 14C yr BP from a Peat Bog, Jura Mountains, Switzerland. Science, 281(5383), pp. 1635-1640. American Association for the Advancement of Science 10.1126/science.281.5383.1635

1994

van der Knaap, Willem Oscar; van Leeuwen, Jacqueline (1994). Holocene vegetation, human impact, and climatic change in the Serra da Estrela, Portugal. In: Ammann, Brigitta; Lotter, André F. (eds.) Festschrift Gerhard Lang. Beiträge zur Systematik und Evolution, Floristik und Geobotanik, Vegetationsgeschichte und Paläoökologie. Dissertationes Botanicae: Vol. 234 (pp. 497-535). Berlin: J. Cramer in der Gebrüder Borntraeger Verlagsbuchhandlung

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