New methods applied to interpretations of pollen data in the Holocene - selected examples from the last decade

Irena A. Pidek, Anna Filbrandt-Czaja, Agnieszka M. Noryśkiewicz, Bożena Noryśkiewicz, Satu Räsänen

DOI: http://dx.doi.org/10.12775/v10090-009-0018-8

Abstract


The results of palynological analyses of the Holocene deposits and modern pollen deposition in Poland and Finland are used to illustrate the progress in pollen analysis - the main palaeoecological method. The increased potential of modern palaeoecology for reconstruction of vegetation and for drawing conclusions on other environmental variables (climate, water conditions, landscape, anthropogenic disturbances) is demonstrated. Pollen analysis - develops at present interpretive tools for precise reconstruction of the structure and composition of vegetation and climate conditions. The progress consists in the quantitative presentation of pollenvegetation-climate relationships based on the examination of modern pollen deposition. The application of numerical analyses to pollen data allows correlating pollen spectrum features with the landscape/vegetation type. Special attention is paid to the Holocene vegetation changes of the transitional zone between boreal forest and tundra in the areas subjected to weak anthropopression (e.g. Lapland), which reflect climatic changes. Databases of modern pollen analogues are based on analysis of samples of surface mosses and contents of Tauber traps. These traps are used in Poland in investigations conducted as a part of the Pollen Monitoring Programme (http://pmp.oulu.fi). The correlation of Tauber-trap data with aerobiological ones contributes to understanding of the relationship between pollen production and climate elements. Additionally, the precise C14 dating allows a near-annual resolution in fossil deposits to be obtained more frequently. Due to time scales comprising hundreds of years, pollen analysis can provide means to resolve questions inaccessible for direct observation.

Keywords


pollen analysis; modern pollen deposition; pollen-vegetation relationship; pollen monitoring; Tauber traps

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References


Autio J. & Hicks S., 2004, Annual variation in pollen deposition and meteorological conditions on the fell Aakenustunturi in northen Finland: potential for using fossil pollen as a climate proxy, Grana 43: 31-47. DOI: http://dx.doi.org/10.1080/00173130310017409

Behre K.-E., 1981, The interpretation of anthropogenic indicators in pollen diagrams, Pollen et Spores 23: 225-245.

Berglund B. E., Gaillard M.-J., Björkman L. & Persson T., 2007, Long-term changes in floristic diversity in southern Sweden: palynological richness, vegetation dynamics and land-use, Vegetation History & Archaeobotany 17: 573-583.

Braak C. J. F. ter & Šmilauer P., 2002, CANOCO Reference Manual and User's Guide to Canoco for Windows: Software for Canonical Community Ordination (version 4.5), Microcomputer Power, Ithaca, N. Y., USA.

Brauer A., Endres Ch., Günter Ch., Litt T., Stebich M. & Negedank J. F. W., 1999, High resolution sediment and vegetation responses to Younger Dryas climate change in varved lake sediments from Meerfelder Maar, Germany, Quaternary Science Reviews 18: 321-329. DOI: http://dx.doi.org/10.1016/S0277-3791(98)00084-5

Broström A., 2002, Estimating source area of pollen and pollen productivity in the cultural landscapes of southern Sweden - developing a palynological tool for quantifying past plant cover, LUNDQUA Thesis 46, Lund University.

Broström A., Nielsen A. B., Gaillard M.-J., Hjelle K., Maier F., Binney H., Bunting J., Fyfe R., Meltsov V., Poska A., Räsänen S., Soepboer W., von Stedingk H., Suutari H. & Sugita S., 2008, Pollen productivity estimates of key European plant taxa for quantitative reconstruction of past vegetation: a review, Vegetation History and Archaeobotany 17: 461-478. DOI: http://dx.doi.org/10.1007/s00334-008-0148-8

Brun C., Dessaint F., Richard H. & Bretagnolle F., 2007, Arable-weed flora and its pollen representation: A case study from the eastern part of France, Review of Palaeobotany and Palynology 146: 29-50. DOI: http://dx.doi.org/10.1016/j.revpalbo.2007.02.001

Bunting M. J., 2003, Pollen-based reconstruction of cultural landscapes: an investigation of pollen source area for non-arboreal taxa, Review of Palaeobotany and Palynology 125: 285-298. DOI: http://dx.doi.org/10.1016/S0034-6667(03)00005-8

Bunting M. J., Gaillard M. J, Sugita S., Middleton R., Broström A., 2004, Vegetation structure and pollen source area, The Holocene 14, 5: 651-660. DOI: http://dx.doi.org/10.1191/0959683604hl744rp

Cheddadi R., Mamakowa K., Guiot J., de Beaulieu J.-L., Reille M., Andrieu V., Granoszewski W. & Peyron O., 1998, Was the climate of the Eemian stable? A quantitative climate reconstruction from seven European pollen records, Palaeogeography, Palaeoclimatology, Palaeoecology 143: 73-85. DOI: http://dx.doi.org/10.1016/S0031-0182(98)00067-4

Cheddadi R., Vendramin G. G., Litt T., Fraçois L., Kageyama M., Lorentz S., Laurent J. M., de Beulieu J.-L., Sadori L., Jost A. & Lunt D., 2006, Imprints of glacial refugia in the modern genetic diversity of Pinus sylvestris, Glob. Ecol. Biogeogr. 15: 271-282.

Dahl A., & Strandhede S.-O., 1996, Predicting the intensity of the birch pollen season, Aerobiologia 12: 97-106. DOI: http://dx.doi.org/10.1007/BF02446601

Davis M. B., 2000, Palynology after Y2K - understanding the source area of pollen in sediments, Ann. Rev. of Earth and Planetary Sci. 28: 1-18.

Desprat S., Goñi M. F. S. & Loutre M.-F., 2003, Revealing climatic variability of the last three millennia in northwestern Iberia using pollen influx data, Earth and Planetary Science Letters 213: 63-78.

Emanuelson U., Greig J., Björkman L., Makohonienko M. & van Leeuwen J., 1998, The selection of modern analogues of former land uses, [in:] M.-J. Gaillard, B. E. Berglund (eds.), Quantification of land surfaces cleared of forests during the Holocene - Modern pollen/vegetation/landscape relationships as an aid to the interpretation of fossil pollen data, Paläoklimaforschung Palaeoclimate Research vol. 27, Special issue: ESF Project "European Palaeoclimate and Man" 18, Gustav Fischer Verlag: 135-140.

Emberlin J., Mullins J., Cordon J., Millington W., Brooke M., Savage M., & Jones S., 1997, The trend to earlier birch pollen season in the UK, a biotic response to change in weather conditions? Grana 36: 29-33. DOI: http://dx.doi.org/10.1080/00173139709362586

Filbrandt-Czaja A., Noryśkiewicz A. M., Noryśkiewicz B. & Pidek I. A., 2003, Variation of tree pollen influx values in several forested regions of Poland, [in:] XVI INQUA Congress - Abstracts, Reno, Nevada, USA, July 23-30, 2003: 211.

Filbrandt-Czaja A. & Piernik A., 2006, The quantitative estimation of human impact on the landscape changes based on palynological and numerical analyses, Ecological Questions 7: 47-56.

Gaillard M.-J., Birks H. J. B., Emanuelsson U., Karlsson S., Lagerås P. & Olausson D., 1994, Application of modern pollen/land-use relationships to the interpretation of pollen diagrams - reconstruction of land-use history in south Sweden, 3000-0 B. P., Review of Palaeobotany and Palynology 82: 47-73.

Gaillard M.-J., Sugita S., Bunting M. J., Middleton R., Broström A., Caseldine Ch., Giesecke T., Hellman S. E. V., Hicks S., Hjelle K., Langdon C., Nielsen A.-B., Poska A., von Stedingk H., Veski S. & POLLANDCAL members, 2008, The use of modelling and simulation approach in reconstructing past landscapes from fossil pollen data: a review and results from the POLLANDCAL network, Vegetation History and Archaeobotany 17: 419-443. DOI: http://dx.doi.org/10.1007/s00334-008-0169-3

Gerasimidis A., Panajotidis S. & Athanasiadis N., 2008, Five decades of rapid forest spread in the Pieria Mountains (N. Greece) reconstruction by means of high-resolution pollen analysis and aerial photographs, Vegetation History and Archaeobotany 17: 639-652. DOI: http://dx.doi.org/10.1007/s00334-008-0150-1

Gioulekas D., Balafoutis Ch., Damialis A., Papakosta D., Giolekas G., Patakas D., 2004, Fifteen years' record of airborne allergenic pollen and meteorological parameters in Thessaloniki, Greece, Journal of Biometeorolology 48: 128-136. DOI: http://dx.doi.org/10.1007/s00484-003-0190-2

Goslar T., Bałaga K., Arnold M., Tisnerat N., Starnowska E., Kuźniarski M., Chróst L., Walanus A. & Więckowski K., 1999, Climate-related variations in the composition of the Late-Glacial and Early Holocene sediments of Lake Perespilno (eastern Poland), Quaternary Science Reviews 18: 899-911. DOI: http://dx.doi.org/10.1016/S0277-3791(99)00004-9

Hellman S. E. V., Gaillard M.-J., Broström A. & Sugita S., 2007, Effect of the sampling design and selection of parameter values on pollen-based quantitative reconstructions of regional vegetation: a case study in southern Sweden using the REVEALS model, Vegetation History and Archaeobotany 17: 445-459.

Hicks S., 2001, The use of annual arboreal pollen deposition values for delimiting tree-lines in the landscape and exploring models of pollen dispersal, Review of Palaeobotany and Palynology 117: 1-29. DOI: http://dx.doi.org/10.1016/S0034-6667(01)00074-4

Hicks S., 2007, Surface samples and Trapping, [in:] S. A. Elias (ed.), Encyclopedia of Quaternary Science, vol. 3, Elsevier, Amsterdam: 2529-2535.

Hicks S. & Hyvärinen V. P., 1987, Sampling modern pollen deposition by means of ‘Tauber traps’: some considerations, Pollen et Spores 28: 219-242.

Hicks S. & Sunnari A., 2005, Adding precision to the spatial factor of vegetation reconstructed from pollen assemblages, Plant Biosysytems 139, 2: 127-134.

Hicks S., Ammann B., Latalowa M., Pardoe H. & Tinsley H., 1996, European Pollen Monitoring Programme, Project Description and Guidelines, Oulu Univ. Press, Oulu, Finland.

Hicks S., Tinsley H., Pardoe H. & Cundill P., 1999, European Pollen Monitoring Programme, Supplement to the Guidelines, Oulu Univ. Press, Oulu, Finland.

Hjelle K. L., 1998, Relationships between modern pollen deposition and the vegetation in mown and grazed communities in western Norway and their application to the interpretation of past cultural activity. Dept. of Botany, University of Bergen, Norway.

Hrynowiecka-Czmielewska A., Filbrandt-Czaja A. & Nienartowicz A., 2007, Modern pollen-vegetation relationship in the Tuchola Forest, Ecological Questions 8: 47-71.

Huntley B., 1996, Quaternary palaeoecology and ecology, Quaternary Science Reviews 15: 591-606. DOI: http://dx.doi.org/10.1016/0277-3791(96)00015-7

Jacobson G. L. & Grimm E. C., 1986, A numerical analysis of Holocene Forest and prairie vegetation in central Minnesota, Ecology 67: 958-966. DOI: http://dx.doi.org/10.2307/1939818

Jankovská V. & Komárek J., 2000, Indicative value of Pediastrum and other coccal green algae in palaeoecology, Folia Geobotanica 35: 59-82. DOI: http://dx.doi.org/10.1007/BF02803087

Kasprzyk I., Uruska A., Szczepanek K., Latałowa M., Gawel J., Harmata K., Myszkowska D., Stach A. & Stępalska D., 2004, Regional differentiation in the dynamics of the pollen seasons of Alnus, Corylus and Fraxinus in Poland (preliminary results), Aerobiologia 20: 141-151. DOI: http://dx.doi.org/10.1023/B:AERO.0000032951.25974.c9

Kaszewski B. M., Pidek I. A., Piotrowska K. & Weryszko-Chmielewska E., 2008, Annual pollen sums of Alnus in Lublin and Roztocze in the years 2001-2007 against selected meteorological parameters, Acta Agrobotanica (in press). Latałowa M., 2003a, Podstawy interpretacji wyników analizy pyłkowej osadów czwartorzędowych [Interpretation of the rulet of the Quaternary sediments pollen analysis - Basic rules], [in:] S. Dybova-Jachowicz, A. Sadowska (eds.), Palinologia [Palynology], Wyd. Inst. Bot. PAN, Kraków: 224-233.

Latałowa M., 2003b, Mikrofosylia pozapyłkowe w osadach dennych Zalewu Szczecińskiego [Non-pollen microfossils in the bottom sediments of the Szczecin Lagoon], Prace Komisji Paleogeografii Czwartorzędu Polskiej Akademii Umiejętności 1: 125-128.

Latałowa M., Miętus M. & Uruska A., 2002, Seasonal variations in the atmospheric Betula pollen count in Gdańsk (southern Baltic cost) in relation to meteorological parameters, Aerobiologia 18: 33-43. DOI: http://dx.doi.org/10.1023/A:1014905611834

Latałowa M. & van der Knaap W. O., 2006, Late Quaternary expansion of Norway spruce Picea abies (L.) Karst. in Europe according to pollen data, Quaternary Science Reviews 25, issue 21-22: 2780-2805. DOI: http://dx.doi.org/10.1016/j.quascirev.2006.06.007

Levetin E., Rogers C. & Hall S., 2000, Comparison of pollen sampling with a Burkard Spore Trap and Tauber Trap in a warm temperate climate, Grana 39: 294-302. DOI: http://dx.doi.org/10.1080/00173130052504333

Litt T., Brauer A., Goslar T., Merkt J., Bałaga K., Müller H., Ralska-Jasiewiczowa M., Stebich M. & Negedank J. F. W., 2001, Correlation and synchronisation of Lateglacial continental sequences in northern central Europe based on annually laminated lacustrine sediments, Quaternary Science Reviews 20: 1233-1249. DOI: http://dx.doi.org/10.1016/S0277-3791(00)00149-9

Makohonienko M., Gaillard M.-J. & Tobolski K., 1998, Modern pollen/land-use relationships in ancient cultural landscapes of North-western Poland, with emphasis on mowing, grazing and crop cultivation, [in:] Quatification of land pollen/vegetation/landscape relationships as an aid to the interpretation of fossil pollen data. Paläoklimaforschung, 27, Special Issue: ESF Project "European Palaeoclimate and Man" 18 (ed. B. Frenzel), Gustav Fischer Verlag: 85-101.

Mazier F., Broström A., Gaillard M.-J., Sugita S., Vittoz P. & Buttler A., 2008, Pollen productivity estimates and relevant source area of pollen for selected plant taxa in a pasture woodland landscape of the Jura Mountains (Switzerland), Vegetation History and Archaeobotany 17: 479-495. DOI: http://dx.doi.org/10.1007/s00334-008-0143-0

Myczkowski S., 1961, Zespoły leśne rezerwatu cisowego Wierzchlas [Forest associations of the yew reserve of Wierzchlas], Ochrona Przyrody 27: 91-108.

Nalepka D., 2005, Late Glacial and Holocene palaeoecological conditions and changes of vegetation cover under early farming activity in the South Kujawy region (Central Poland), Acta Palaeobotanica, Suppl. 6: 3-90.

Noryśkiewicz A. M., 2001, mscr., Historia cisa we Wierzchlesie na tle postglacjalnej historii roślinności [The history of yew in Wierzchlas on the background of postglacial history of vegetation], UAM, Poznań.

Noryśkiewicz A. M., 2006, Historia cisa w okolicy Wierzchlasu w świetle analizy pyłkowej [The history of yew in the region of Wierzchlas in the light of pollen analysis], Wyd. UMK, Toruń.

Noryśkiewicz B., 2005, Seven years of annual pollen deposition in the Brodnica Lake District (N Poland) - relations to vegetation and climate, [in:] Filipova-Marinova M., Hicks S. (eds.) Pollen Monitoring Programme, 5th International Meeting, Varna, Bulgaria. Volume of Abstracts: 29.

Obidowicz A., Ralska-Jasiewiczowa M., Kupryjanowicz M., Szczepanek K., Latałowa M. & Nalepka D., 2004, Picea abies (L.) H. Karst. - Spruce, [in:] M. Ralska-Jasiewiczowa, M. Latałowa, K. Wasylikowa, K. Tobolski, E. Madeyska, Wright H. E. Jr., Ch. Turner (eds.), 2004, Late Glacial and Holocene history of vegetation in Poland based on isopollen maps, W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków: 147-157.

Petit R. J., Aguinagalde I., de Beaulieu J.-L., Bittkau C., Brewer S., Cheddadi R., Ennos R., Fineschi S., Grivet D., Lascoux M., Mohanty A., Müller-Starck G. M., Demesure-Musch B., Palmé A., Martin J. P., Rendell S. & Vendramin G. G., 2003, Glacial refugia: Hotspots but not melting pots of genetic diversity, Science 300: 1563-1565.

Petit R. J. & Hu F. S., 2008, Palaeoecology meets genetics: deciphering past vegetational dynamics, Terra Nostra 2008/2, 12th International Palynological Congress. 8th International Organisation of Palaeobotany Conference. August 30-September 5, 2008 in Bonn, Germany, Abstract Vol.: 220.

Peyron O., Guiot J., Cheddadi R., Tarasov P., Reille M., de Beulieau J.-L., Bottema S. & Andrieu V., 1998, Climatic Reconstruction in Europe for 18000 YR B. P. from Pollen Data, Quaternary Research 49, 2: 183-196.

Pidek I. A., 2007, Nine-year record of Alnus pollen deposition in the Roztocze region (SE Poland) with relation to vegetation data, Acta Agrobotanica 60, 2: 57-64. DOI: http://dx.doi.org/10.5586/aa.2007.031

Pidek I. A. & Kaszewski B. M., 2005, Zmienność koncentracji pyłku buka zwyczajnego (Fagus sylvatica L.) w lasach Roztocza na tle czynników meteorologicznych [Variation in beech (Fagus sylvatica L.) pollen concentration in the background of meteorological factors], Annales UMCS, sec. B, vol. LX, 10: 147-163.

Pidek I. A., Weryszko-Chmielewska E. & Piotrowska K., 2006, Comparison of pollen concentration of selected tree taxa in Lublin and in the Roztocze region (SE Poland) - the results of three monitoring methods, Acta Agrobotanica 59, 1: 355-364. DOI: http://dx.doi.org/10.5586/aa.2006.037

Pidek I. A., Zimny M., Noryśkiewicz B., Święta-Musznicka J., Filbrandt-Czaja A., Noryśkiewicz A. M. & Kaszewski B. M., 2008a, Annual pollen accumulation rates (PARs) of Picea and Pinus along SE-NW transect in Poland in relation to vegetation data and summer air temperatures, Terra Nostra 2008/2, 12th International Palynological Congress, 8th International Organisation of Palaeobotany Conference, August 30-September 5, 2008 in Bonn, Germany, Abstract Vol.: 223.

Pidek I. A., Weryszko-Chmielewska E., Piotrowska K., 2008b, Czy istnieje dwuletni rytm obfitego pylenia brzozy i olszy? [Does the biennual rhythm of abundant birch and alder flowering exist?], Allergologia. Immunologia 5, 2: 61-65.

Poska A., Pidek I. A., 2007, Estimating spatial scale of pollen dispersal in the semi-cultural landscape of the Roztocze region (SE Poland), [in:] L. Kalnina, E. Luksevics (eds.), Volume of Abstracts, Pollen Monitoring Programme, 6th International Meeting, 3-9 June 2007, Jurmala, Latvia, University of Latvia. Rīga: 69-73.

Pyhäjärvi T., Salmela M. J. & Savolainen O., 2007, Colonization routes of Pinus sylvestris inferred from distribution of mitochondrial DNA variation, Tree Genetics & Genomes 4: 247-254, Springer, DOI 10.1007/s11295-007-0105-1. DOI: http://dx.doi.org/10.1007/s11295-007-0105-1

Ralska-Jasiewiczowa M., Goslar T., Madeyska T. & Starkel L. (eds.), 1998, Lake Gościąż, Central Poland, A Monographic Study, Part I, W. Szafer Institute of Botany, Kraków.

Ralska-Jasiewiczowa M., Latałowa M., Wasylikowa K., Tobolski K., Madeyska E., Wright H. E. Jr. & Turner Ch. (eds.), 2004, Late Glacial and Holocene history of vegetation in Poland based on isopollen maps, W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków: 11-444.

Ranta H., Sokol C. & Hicks S., 2007, Comparison of timeseries measurements between a volumetric air sampler and a Tauber pollen trap in the northern tree-line area of Fennoscandia, Presentation at the 6th International Meeting of the Pollen Monitoring Programme, 3-9 June 2007, Jurmala, Latvia: 73-74.

Räsänen S., 2001, Tracing and interpreting fine-scale human impact in northern Fennoscandia with the aid of modern pollen analogue, Vegetation History and Archaeobotany 10: 211-218. DOI: http://dx.doi.org/10.1007/PL00006932

Räsänen S., Suutari H. & Nielsen A. B., 2007a, A step further towards quantitative reconstruction of past vegetation in Fennoscandian boreal forests: pollen productivity estimates for six dominant taxa, Review of Palaeobotany and Palynology 146, 1-4: 208-220.

Räsänen S., Froyd C. & Goslar T., 2007b, The impact of tourism and reindeer herding on forest vegetation at Saariselkä, Finnish Lapland: a pollen analytical study of a high resolution peat profile, The Holocene 17, 4: 447-456. DOI: http://dx.doi.org/10.1177/0959683607077016

Sinclair W. T., Morman J. D. & Ennos R. A., 1999, The postglacial history of Scots pine (Pinus sylvestris L.) in Western Europe: evidence from mitochondrial DNA variation. Mollecular Ecology 8: 83-88.

Sjögren P., van der Knaap W. O., Huusko A. & van Leeuwen J. F. N., 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 DOI: 10.1016/j.revpalbo.2008.05.003

Soranzo N., Alia R., Provan J. & Powell W., 2000, Patterns of variation at a mitochondrial sequence-tagged-site locus provides new insights into the post glacial history of European Pinus sylvestris populations, Mollecular Ecology 9: 1205-1211. DOI: http://dx.doi.org/10.1046/j.1365-294x.2000.00994.x

Spieksma F. Th. M., Corden J. M., Detandt M., Millington W. M., Nikkels H., Nolard N., Schoenmakers C. H. H., Wachter R., de Weger L. A., Willems R. & Emberlin J., 2003, Quantitative trends in annual totals of five common airborne pollen types (Betula, Quercus, Poaceae, Urtica and Artemisia), at five pollen-monitoring stations in western Europe, Aerobiologia 19: 171-184. DOI: http://dx.doi.org/10.1023/B:AERO.0000006528.37447.15

Sugita S., 1994, Pollen representation of vegetation in Quaternary sediments: theory and method in patchy vegetation, J. Ecol. 82: 881-897.

Sugita S., 1998, Modelling pollen representation of vegetation, [in:] M.-J. Gaillard, B. E. Berglund, B. Frenzel, U. Huckriede (eds.), Quantification of land surfaces cleared of forests during the Holocene, Paläoklimaforschung/Palaeoclimate Research 27, Stuttgart: Gustav Fischer Verlag: 1-16.

Sugita S., 2007a, Theory of quantitative reconstruction of vegetation, I. Pollen from large sites REVEALS regional vegetation, Holocene 17: 229-241. DOI: http://dx.doi.org/10.1177/0959683607075837

Sugita S., 2007b, Theory of quantitative reconstruction of vegetation, II. All you need is LOVE, The Holocene 17: 243-257. DOI: http://dx.doi.org/10.1177/0959683607075838

Święta-Musznicka J. & Zimny M., 2007, Modern annual pollen deposition in the Kashubian Lakeland (N Poland) against aerobiological data from Gdańsk, [in:] L. Kalnina, E. Luksevics (eds.), Volume of Abstracts, Pollen Monitoring Programme, 6th International Meeting, 3-9 June 2007, Jurmala, Latvia, University of Latvia. Rīga: 81-82.

Tarasov P. E., Guiot J., Cheddadi R., Andreev A. A., Bezusko L. G., Blyakharchuk T. A., Dorofeyuk N. I., Filimonova L. V., Volkova V. S. & Zernitskya V. P., 1999, Climte in northern Eurasia 6000 years ago reconstructed from pollen data, Earth and Planetary Science Letters 171: 635-645. DOI: http://dx.doi.org/10.1016/S0012-821X(99)00171-5

Tipper J. C., 1979, Rarefaction and rarefiction - the use and abuse of a method in palaeoecology, Paleobiology 5: 423-34.

Tonkov S., Hicks S., Bozilova E. & Atanassova J., 2001, Pollen monitoring in the central Rila Mountains, Southwestern Bulgaria: comparisons between pollen traps and surface samples for the period 1993-1999, Review of Palaeobotany and Palynology 117: 167-182.

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

van der Knaap W. O. & van Leeuwen J. F. N., 2003, Climate-pollen relationships AD 1901-1996 in two small mires near the forest limit in the northern and central Swiss Alps, The Holocene 13, 6: 809-828. DOI: http://dx.doi.org/10.1191/0959683603hl657rp

van Geel B., 2006, Fossil ascomycetes in Quaternary deposits, Nova Hedvigia, Stuttgart, 82, 3-4: 313-329.

van Geel B., Buurman J., Brinkkemper O., Schelvis J., Aptroot A., van Reznen G. & Hakbijl T., 2003, Environmental reconstruction of a Roman Period Settlement site in Uitgeest (The Netherlands), with special reference to coprophilous fungi, Journal of Archaeological Science 30: 873-883. DOI: http://dx.doi.org/10.1016/S0305-4403(02)00265-0

van Leeuwen J., 2007, Spores of fungi on dung in Swiss Alpine pollen traps and in sediments from the Alps, Bhutan, and the Azores, [in:] L. Kalnina, E. Luksevics (eds.), Volume of Abstracts, Pollen Monitoring Programme, 6th International Meeting, 3-9 June 2007, Jurmala, Latvia, University of Latvia, Rīga: 50.

Walanus A. & Nalepka D., 1999, POLPAL. Program for counting pollen grains, diagrams plotting and numerical analysis, Acta Paleobotanica, Suppl. 2: 659-661.

Whitmore J., Gajewski K., Sawada M., Williams J. W., Shuman B., Bartlein P. J., Minckley T., Viau A. E., Webb III T., Shafer S., Anderson P. & Brubaker L., 2005, Modern pollen data from North America and Greenland for multi-scale paleoenvironmental applications, Quaternary Science Reviews 24: 1828-1848. DOI: http://dx.doi.org/10.1016/j.quascirev.2005.03.005

Wilmshurst J. M. & McGlone M. S., 2005, Origin of pollen and spores in surface lake sediments: comparison of modern palynomorph assemblages in moss cushions, surface soils and surface lake sediments, Review of Palaeobotany and Palynology 136: 1-15. DOI: http://dx.doi.org/10.1016/j.revpalbo.2005.03.007




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