Comparing pollen spectra from modified Tauber traps and moss samples: examples from a selection of woodlands across Europe |
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Authors: | Heather S Pardoe Thomas Giesecke Willem O van der Knaap Helena Svitavská-Svobodová Eliso V Kvavadze Sampson Panajiotidis Achilles Gerasimidis Irena A Pidek Marcelina Zimny Joanna ?wi?ta-Musznicka Ma?gorzata Lata?owa Agnieszka M Nory?kiewicz Elissaveta Bozilova Spassimir Tonkov Mariana V Filipova-Marinova Jacqueline F N van Leeuwen Laimdota Kalni?a |
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Institution: | 1. Department of Biodiversity and Systematic Biology, National Museum Wales, Cathays Park, Cardiff, CF10 3NP, UK 2. Department of Palynology and Climate Dynamics, University of G?ttingen, Albrecht-von-Haller-Institute for Plant Sciences, Untere Karspüle 2, 37073, G?ttingen, Germany 3. Institute of Plant Sciences and Oeschger Centre for Climate Change Research, University of Bern, Altenbergrain 21, 3013, Bern, Switzerland 4. Institute of Botany, Academy of Sciences of the Czech Republic, Castle, 252-43, Pr?honice, Czech Republic 5. National Museum of Georgia, Davitashvili Institute of Paleobiology, 4 Niagvris St, 0108, Tbilisi, Georgia 6. Laboratory of Forest Botany-Geobotany, Faculty of Forestry and Natural Environment, Aristotle University of Thessaloniki, PO Box: 270, 541 24, Thessaloniki, Greece 7. Institute of Earth Sciences, University of Maria Curie-Sk?odowska, al. Kra?nicka 2 c/d, 20-718, Lublin, Poland 8. Department of Plant Ecology, Laboratory of Palaeoecology and Archaeobotany, University of Gdańsk, al. Legionow 9, 80-441, Gdańsk, Poland 9. Institute of Archaeology, Nicolaus Copernicus University in Toruń, Szosa Bydgoska 44/48, 87-100, Toruń, Poland 10. Faculty of Biology, Department of Botany, Laboratory of Palynology, Sofia University of St. Kliment Ohridski, 8 Dragan Tzankov blvd, 1164, Sofia, Bulgaria 11. Museum of Natural History, 41 Maria Louisa blvd, 9000, Varna, Bulgaria 12. Faculty of Geography and Earth Sciences, University of Latvia, 19 Rainis Blvd, Riga, 1586, Latvia
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Abstract: | This paper compares pollen spectra derived from modified Tauber traps and moss samples from a selection of woodland types from Bulgaria, the Czech Republic, Georgia, Greece, Poland, Switzerland and Wales. The study examines the representation of individual taxa in the two sampling media and aims to ascertain the duration of pollen deposition captured by a moss. The latter aim was pursued through the calculation of dissimilarity indexes to assess how many years of pollen deposited in a pollen trap yield percentage values that are most similar to those obtained from the moss. The results are broadly scattered; the majority of moss samples being most similar to several years of pollen deposition in the adjacent trap. For a selection of samples, a comparison of the pollen accumulation rate in pollen traps with the pollen concentration in the moss per unit surface indicates that the entrapment and/or preservation of individual pollen types in the moss differ from that in the pollen trap. A comparison of the proportion of different taxa in the moss with the pollen spectrum of 2 years of pollen deposition in the trap also revealed large differences. There is a tendency for bisaccate grains such as Pinus and Picea to have a higher representation in moss than in traps but there is considerable regional variation. The results indicate that pollen proportions from moss samples often represent the pollen deposition of one area over several years. However, bisaccate pollen grains tend to be over-represented in moss samples compared to both pollen traps and, potentially, lake sediments. |
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