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W.O. van der Knaap
Researcher at Oeschger Centre for Climate Change Research
Publications - 61
Citations - 5788
W.O. van der Knaap is an academic researcher from Oeschger Centre for Climate Change Research. The author has contributed to research in topics: Pollen & Vegetation. The author has an hindex of 36, co-authored 61 publications receiving 5390 citations. Previous affiliations of W.O. van der Knaap include University of Bern & University of Liverpool.
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Journal ArticleDOI
A new scenario for the Quaternary history of European beech populations: palaeobotanical evidence and genetic consequences
Donatella Magri,Giovanni G. Vendramin,Isabelle Dupanloup,Thomas Geburek,Dušan Gömöry,Małgorzata Latałowa,Thomas Litt,Ladislav Paule,Joan Maria Roure,Ioan Tantau,W.O. van der Knaap,Rémy J. Petit,Jacques-Louis de Beaulieu +12 more
TL;DR: The largely complementary palaeobotanical and genetic data indicate that beech survived the last glacial period in multiple refuge areas and the modern genetic diversity was shaped over multiple glacial-interglacial cycles.
Journal ArticleDOI
History of Atmospheric Lead Deposition Since 12,370 14C yr BP from a Peat Bog, Jura Mountains, Switzerland
William Shotyk,Dominik J. Weiss,Peter G. Appleby,A. Cheburkin,Robert Frei,M. Gloor,Jan Kramers,S. Reese,W.O. van der Knaap +8 more
TL;DR: A continuous record of atmospheric lead since 12,370 carbon-14 years before the present (14C yr BP) is preserved in a Swiss peat bog, indicating the beginning of lead pollution from mining and smelting, and anthropogenic sources have dominated lead emissions ever since.
History of Atmospheric Lead Deposition Since 12,370 14 Cy r BP from a Peat Bog, Jura Mountains, Switzerland
William Shotyk,Dominik J. Weiss,Peter G. Appleby,A. Cheburkin,Robert Frei,M. Gloor,Jan Kramers,S. Reese,W.O. van der Knaap +8 more
TL;DR: The greatest lead sux (15.7 milligrams persquare meter per year in A.D. 1979) was 1570 times the natural, backgroundvalue (0.01 milligram per square meters per year from 8030 to 5320.
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Genetic consequences of glacial survival and postglacial colonization in Norway spruce: combined analysis of mitochondrial DNA and fossil pollen.
Mari Mette Tollefsrud,Roy Kissling,Felix Gugerli,Øystein Johnsen,Tore Skrøppa,Rachid Cheddadi,W.O. van der Knaap,Małgorzata Latałowa,Ruth Terhürne-Berson,Thomas Litt,Thomas Geburek,Christian Brochmann,Christoph Sperisen +12 more
TL;DR: The patterns of population subdivision superimposed on interpolated fossil pollen distributions indicate that survival in separate refugia and postglacial colonization has led to significant structuring of genetic variation in the southern range of the Norway spruce species.
Journal ArticleDOI
Holocene land-cover reconstructions for studies on land cover-climate feedbacks
Marie-José Gaillard,Shinya Sugita,Florence Mazier,Florence Mazier,Anna-Kari Trondman,Anna Broström,Thomas Hickler,Jed O. Kaplan,Erik Kjellström,Ulla Kokfelt,Petr Kuneš,Carsten Lemmen,Paul A. Miller,Jörgen Olofsson,Anneli Poska,Mats Rundgren,Benjamin Smith,Gustav Strandberg,Ralph Fyfe,Anne Birgitte Nielsen,Teija Alenius,L. Balakauskas,Lena Barnekow,Harry John Betteley Birks,Anne E. Bjune,Leif Björkman,Thomas Giesecke,Kari Loe Hjelle,Laimdota Kalnina,Mihkel Kangur,W.O. van der Knaap,Tiiu Koff,Per Lagerås,Małgorzata Latałowa,Michelle Leydet,Jutta Lechterbeck,Matts Lindbladh,Bent Vad Odgaard,SM Peglar,Ulf Segerström,H. von Stedingk,Heikki Seppä +41 more
TL;DR: In this article, the authors reviewed the pros and cons of the scenarios of past anthropogenic land cover change (ALCC) developed during the last ten years, and discussed issues related to pollen-based reconstruction of the past land-cover and introduce a new method, REVEALS (Regional Estimates of VEgetation Abundance from Large Sites), to infer long-term records of past landcover from pollen data, and present a new project (LANDCLIM: LAND cover - CLIMATE interactions in NW Europe during the Holocene) currently underway,