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Environmental Change Research Unit (ECRU)
Department of Environmental Sciences
P.O. Box 65 (Viikinkaari 1)
FIN-00014 University of Helsinki
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Jan Weckström

 

Articles

Papers in international peer-reviewed journals/books & conference proceedings

Submitted, in press, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001-1991

Submitted

Kotiaho, M., Fritze, H., Merilä, P., Tuomivirta, T., Väliranta, M.,  Korhola, A., Karofeld, E. & Tuittila, E-S. Actinobacterial communities in boreal bogs. Soil biology & biochemistry

Collins L.G., C.S. Allen, J. Pike, D.A. Hodgson, K. Weckström & G. Massé (2012). Evaluating highly branched isoprenoids (HBIs) as an Antarctic sea-ice proxy in deep-water glacial sediments. Earth and Planetary Science Letters. (submitted).

Vaalgamaa, S., E. Sonninen, K. Weckström & A. Korhola (2012). Identifying organic enrichment sources and trends in coastal sediments using nitrogen and carbon isotopic ratio records. Journal of Paleolimnology. (submitted).

Ryves, D.B., P. Rasmussen, J.P. Lewis, D R. Erbs-Hansen, K.L. Knudsen, K. S. Petersen, M.-A. Sicre, A.L. Clarke, K.G. Jensen, J. Olsen, K. Weckström & A. Fernane (2011). North Atlantic drivers of coastal environmental change and cultural response during the Roman Warm Period: a high resolution, multiproxy study from Danish fjords. Geology (submitted).

Charman, D., Beilman, B.W. Blaauw, M., Booth, B., Brewer, S., Chambers, F.M., Christen, J.A., Gallego-Sala, A., Harrison, S.P., Hughes, P.D.M. Jackson, S.T.,  Korhola, A., Mauquoy, D., Mitchell, F.J.G, Prentice, I.C., van der Linden, M., de Vleeschouwer, F., Yu, Z.C., Bauer, I.E. Garneau, M., Karofeld, E., Le Roux, G., Moschen, R., Nichols, J.E. Phadtare, N.R., Rausch, N., Swindles, G.T., Väliranta, M., van Bellen, S. & van Geel, B. Carbon-cycle implications of climate-driven changes in peat accumulation during the last millennium. PNAS (submitted).

Forsström, L., Rautio, M., Sorvari, S., Albert, R.-L., Kumagai, M. & Korhola, A. Attenuation of solar radiation and the role of DOM concentration and optical parameters  in high-latitude lakes (submitted).

Prowse, T., Alfredsen, K., Beltaos, S., Bonsal, B., Duguay, C., Ivanov, V., Korhola, A., McNamara, J., Vincent, W., Vuglinsky, V. & Weyhenmeyer, G. (2010). Snow, Water, Ice and Permafrost in the Arctic: Changing river and lake ice, and resulting effects, Component 3, Module 4, AMAP – SWIPA Report. (reviewed).

Korhola, A., Nyman, M., Weckström, J., Seppä, H. & Thompson, R.. Responses of aquatic biota to climate and catchment changes in a subarctic lake during Holocene. (submitted).

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In press

Ojala, A., Kososnen, E., Weckström, J., Korkonen, S. & A. Korhola (2013). Seasonal formation of clastic-biogenic varves: the potential for palaeoenvironmental interpretations. GFF

Juutinen, S., Väliranta, M., Kuutti, V., Laine, A., Virtanen, T., Seppä, H., Weckström, J. & Tuittila, E-S. Carbon fluxes and long-term carbon accumulation in a wetland basin in northern boreal Finland. Short- and long-term carbon dynamics in a northern peatland-lake continuum; aquatic contribution in an integrated budget. Biogeosciences.

Ronkainen, T., Väliranta, M. & Tuittila, E-S. Fire pattern in a drainage-affected boreal bog. Boreal Environment Research.
Tuittila, E-S., Juutinen, S., Frolking, S., Väliranta, M., Miettinen, A., Laine, A., Quillet, A. & Merilä, P. Wetland chronosequence as a model of peatland development: Vegetation succession, peat and carbon accumulation. The Holocene.

Mertens K.N., M. Bringué, N. Van Nieuwenhove, V. Pospelova, A. Rochon, A.de Vernal, T. Radi, B. Dale, R.T. Patterson, K. Weckström, E. Andrén, S. Louwye & K. Matsuoka (2012). Process length variation of Operculodinium centrocarpum in the North Pacific and calibration as annual density proxy. Journal of Quaternary Science. (accepted).

Weckström K., J.P. Lewis, E. Andrén, M. Ellegaard, P. Rasmussen, D.B. Ryves & R. Telford 2011. Palaeoenvironmental history of the Baltic Sea - one of the largest brackish-water ecosystems in the world 2010. In: Gell, P., J. Tibby, K. Saunders & K. Weckström (eds.) Applications of paleoenvironmental techniques to estuarine systems. Developments in Paleoenvironmental Research, Springer, Berlin Heidelberg New York.(Accepted).

Tuovinen N., K. Weckström & V-P Salonen (2011). Impact of acid mine drainage on diatom communities of Lake Orijärvi and Määrjärvi (SW Finland). Boreal Environmental Research. (In press).

Rose, N.L., Morley, D., Appleby, P.G., Battarbee, R.W., Alliksaar, T., Guilizzoni, P., Jeppesen, E., Korhola, A. & Punning, J-M. (2010). Sediment accumulation rates in European lakes since 1850: Trends, reference conditions and exceedence. Journal of Paleolimnology. (in press).

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2013

Kyrö, E.-M., Kerminen, V.-M., Virkkula, A., Dal Maso, M., Parshintsev, J., Ruíz-Jimenez, J., Forsström, L., Manninen, H. E., Riekkola, M.-L., Heinonen, P., and Kulmala, M (2013). Antarctic new particle formation from continental biogenic precursors, Atmos. Chem. Phys., 13, 3527-3546, doi:10.5194/acp-13-3527-2013.

Forsström, L., Roiha, T. & Rautio, M. (2013). Responses of microbial food web to increased allochthonous DOM in an oligotrophic subarctic lake. Aquatic Microbial Ecology 68: 171-184.

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2012

Kyrö, E-M. , Kerminen, V-M. , Virkkula, A. O. , Dal Maso, M. , Parshintsev, J. , Ruiz-Jimenez, J. , Forsström, L. , Manninen, H. E. , Riekkola, M-L. , Heinonen, P. & Kulmala, M. (2012). Antarctic new particle formation from continental biogenic precursors. Atmospheric Chemistry and Physics Discussions 12, 32741-32794.

Erästö, P.,Holmström, L., Korhola, A. & Weckström, J. (2012). Finding a consensus on credible features among several paleoclimate reconstructions. Annals of Applied Statistics 6, 1377-1405.

Helmens, K.F., Väliranta, M., Engels & S., Shala, S. 2012 Dramatic shifts in early glacial (MIS 5d-c) climate regimes recorded at the high latitude site Sokli (northern Finland). Quaternary Science Reviews 41, 22-38.

Cazzanelli, M., Forsström, L., Rautio, M., Michelsen, A. & Christoffersen, K.S. (2012). Benthic production is the key to Daphnia middendorffiana survival in a shallow High Arctic freshwater ecosystem. Freshwater Biology 57(3): 541-551.

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2011

Väliranta, M., Blundell, A., Charman, D., Karofeld, E., Korhola, A., Sillasoo, Ü., Tuittila, E. 2011. Reconstructing peatland water tables using transfer function for plant macrofossils and testate amoebae: a methodological comparison. Quaternary International doi:10.1016/j.quaint.2011.05.024.

Siitonen, S., Väliranta, M., Weckström, J., Juutinen, S. & Korhola, A. 2011. Comparison of Cladocera-based water-depth reconstruction against other types of proxy data in Finnish Lapland. Hydrobiologia 676, 155–172.

Sillasoo, Ü., Väliranta, M. & Tuittila, E-S. 2011. Fire history and vegetation recovery in two raised bogs at the Baltic Sea. Journal of Vegetation Science 22, 1084–1093.

Jones, V.J, Solovieva, N., Self, A.E., McGowan, S., Rosen, P., Salonen, S., Seppä, H., Väliranta, M., Parrott, E. & Brooks, S.J. 2011. The influence of Holocene treeline advance and retreat on an arctic lake ecosystem; a multi-proxy study from Kharinei Lake, North Eastern European Russia.  Journal of Paleolimnology 46, 123-137.

Salonen, J., Seppä, H., Väliranta, M., Jones, V., Self, A., Heikkilä, M. & Kultti, S. 2011. Holocene and lateglacial temperature changes and associated treeline dynamics in NE Russia. Quaternary Research 75, 501–511.

Väliranta, M., Kaakinen, A., Kuhry, P., Kultti, S., Salonen, S. & Seppä, H. 2011. Scattered late-glacial and early-Holocene tree populations as dispersal nuclei for forest development in NE European Russia. Journal of Biogeography 38, 922-932.

Andresen, C.S., F. Straneo, M.H. Ribergaard, A.A. Bjørk, T.J. Andersen, A. Kuijpers, N. Nørgaard-Pedersen, K.H. Kjær, K. Weckström & Andreas P. Ahlstrøm (2011). Direct coupling between atmosphere, ocean and iceberg calving: A 120 year record from Helheim Glacier, Southeast Greenland, based on marine sedimentological evidence. Nature Geoscience doi:10.1038/ngeo1349

Schmidt R., K. Weckström, S. Lauterbach, R. Tessadri & K. Huber (2011). North Atlantic climate impact on early late glacial climate oscillations in the southeastern Alps inferred from a multi-proxy lake sediment record. Journal of Quaternary Science. DOI: 10.1002/jqs.1505

Pearson, E.J., Juggins, S., Talbot, H.M., Weckström, J., Rosén, P., Ryves, D., Roberts, S. & Schmidt, R. (2011). A lacustrine GDGT-temperature calibration from the Scandinavian Arctic to Antarctic: renewed potential for the application of GDGT-paleothermometry in lakes. Geochimica et Cosmochimica Acta, 75, 6225-6238.

Rautio M, Mariash H, Forsström L. 2011. Seasonal shifts between autochthonous and allochthonous carbon contributions to zooplankton diets in a subarctic lake. Limnology & Oceanography 56: 1513-1524.

Väliranta, M., Weckström, J., Siitonen, S., Seppä, H., Alkio, J., Juutinen, S. & E.-S. Tuittila (2011). Holocene aquatic ecosystem change in the boreal vegetation zone of northern Finland. Journal of Paleolimnology 45, 339-352.

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2010

Snoeijs, P. & K. Weckström. Diatoms and environmental change in large brackish-water ecosystems (2010) In: Smol, J.P. & E.F. Stoermer (eds.) The Diatoms: Applications for the Environmental and Earth Sciences. 2nd ed. Cambridge University Press, Cambridge,pp. 287-308.

Engels, S., Helmens, K.F., Väliranta, M., Brooks S.J. & Birks, H.J.B. 2010. Early Early Weichselian (MIS-5d and 5c) palaeoenvironmental and palaeoclimatic changes in northern Fennoscandia: a multi-proxy study on the lacustrine record of Sokli (Finland). Boreas 39: 689-704.

Arneth, A., Harrison, S.P., Zaehle, S., Tsigaridis, K., Menon, S., Bartlein, P.J., Feichter, J., Korhola, A., Kulmala, M., O'Donell, D., Schurgers, G., Sorvari, S. & Vesala, T. (2010).Terrestrial biogeochemical feedbacks in the climate system. Nature Geoscience DOI:10.1038/NGEO905.

Tuovinen, N., K. Weckström & J. Virtasalo (2010). Assessment of recent eutrophication and climate influence in the Archipelago Sea based on the subfossil diatom record. Journal of Paleolimnology 44: 95-108.

Weckström, K., P. Rasmussen, B. Vad Odgaard, T.J. Andersen, T. Virtanen & J. Olsen 2010. Recent changes in the nutrient status of a soft-water Lobelia lake, Hampen Sø, Denmark. Geological Survey of Denmark and Greenland Bulletin 20: 43-46.

Weckström, J. Seppä, H., Korhola, A. (2010). Climatic influence on peatland formation and lateral expansion dynamics in subarctic Fennoscandia. Boreas 39, 761-769.

Bingham, E.M., McClymont, E.L., Childs, E.V., Pancost, R.D., Evershed, R.P & Väliranta, M. 2010. Conservative n-alkane biomarkers of Sphagnum species: Implications for palaeo-reconstruction of species-specific vegetation in ombrotrophic bogs. Organic Geochemistry, 41: 214-220.

Huber, K., K. Weckström, R. Drescher-Schneider, J. Knoll, J. Schmidt & R. Schmidt 2009. Climate changes during the last glacial termination inferred from diatom-based temperatures and pollen in a sediment core from Längsee (Austria). Journal of Paleolimnology 43: 131-147.

Korhola, A., Seppä, H., Ruppel, M., Väliranta, M., Virtanen, T. & Weckström, J. (2010). The importance of northern peatland expansion to the late-Holocene rise of atmospheric methane. Quaternary Science Reviews 29:611-617.

Weckström, K., Weckström, J., Yliniemi, L.-M. & Korhola, A. (2010). The ecology of Pediastrum (Chlorophyceae) in subarctic lakes and their potential as palaeobioindicators. Journal of Paleolimnology 43: 61-73.

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2009

Huber, K., C. Kamenik, K. Weckström & R. Schmidt (2009) Taxonomy, palaeoecology, and stratigraphy of chrysophycean cysts from a Late Glacial sediment core section of Längsee, Austria. Nowa Hedwigia: 245-261.

Holmroos H., J. Niemistö, K. Weckström & J. Horppila (2009) Field experiment on the seasonal variation of resuspension-mediated aerobic release of phosphorus. Boreal Environmental Research 14: 937–946.

Turner, B.L. & K. Weckström (2009) Phytate as a novel phosphorus-specific palaeo-indicator in aquatic sediments. Journal of Paleolimnology 42: 391–400.

Catalan, J., M.G. Barbieri, F. Bartumedeus, P. Bitusik, I. Botev, A. Branceilj,  D. Coganiceanu, M Manca, A. Marchetto, N. Ognjanova-Rumenova, S. Pla, M. Rieradevall, S. Sorvari, E. Stevekova, E. Stuchlik and M. Ventura (2009). Ecological Thresholds in European alpine lakes. Freshwater Biology  54, 2494–2517.

Väliranta, M., Birks, H., Helmens, K., Engels, S., & Piirainen, M. 2009. Early Weichselian interstadial (MIS 5c) summer temperatures were higher than today in northern Fennoscandia. Quaternary Science Reviews 28: 777-782.

Binney, H., Willis, K., Edwards, M., Bhagwat, S., Anderson, P., Andreev, A., Blaauw, M., Damblon, F., Haesaerts, P., Kienast, F., Kremenetski, K. Krivonogov, S., Lozhkin, A., MacDonald, G., Novenko, E., Oksanen, P., Sapelko, T., Väliranta, M., Vazhenina, L. 2009. The distribution of late-Quaternary woody taxa in Eurasia: evidence from a new macrofossil database. Quaternary Science Reviews, 28: 2445-2464.

Sorvari, S., Korhonen-Kurki, K., Niemelä, J., Raivio, K. & Tikka, P. (2009). Breaking the boundaries - multidisciplinary environmental research at University of Helsinki. Boreal Environmental Research, 14 (suppl. A), 1-4.

Laine, A., Riutta, T., Juutinen, S., Väliranta, M. & Tuittila, E-S. 2009. Acknowledging the spatial heterogeneity in modelling carbon dioxide gas exchange in northern aapa mire. Ecological modelling, 220: 2646-2655.

Helmens, K.F., Risberg, J., Jansson, K.N., Weckström, J., Berntsson, A., Kaislahti-Tillman, P., Johansson, P.W. & S. Wastegård (2009). Early MIS 3 glacial lake evolution, ice-marginal retreat pattern and climate at Sokli (northeastern Fennoscandia). Quaternary Science Reviews 28: 1880-1894.

Kahlert, M., Albert, R.-L-., Anttila, E.-L., Bengtsson, R., Bigler, C., Eskola, T., Gälman, V., Gottschalk, S., Herlitz, E., Jarlman, A., Kokocińsci, M., Miettinen, J., Piirsoo, K., Quintana, I., Raunio, J., Sandell, B., Simola, H., Sundberg, I., Vilbaste, S. & Weckström, J. (2009). Harmonization is more important than experience – results of the first Nordic-Baltic diatom intercalibration exercise 2007 (stream monitoring). Journal of Applied Phycology 21: 471-482.  

Soininen, J. & Weckström, J. (2009). Diatom community structure along environmental and spatial gradients in lakes and streams. Fundamental and Applied Limnology 174/3: 205-213.

Tolotti, M., Forsström. L., Morabito, G., Thaler, B., Stoyneva, M., Cantonati, M., Šisko, M. & Lotter, A. (2009). Biogeographical characterisation of phytoplankton assemblages in high altitude, and high latitude European lakes. Advances in Limnology 62: 55-75.

Straškrábová, V., Bertoni, R., Blažo, M., Callieri, C., Forsström, L., Fott, J., Kernan, M., Macek, M., Stuchlík, E. & Tolotti, M. (2009). Structure of pelagic microbial assemblages in European mountain lakes during ice-free season. Advances in Limnology 62: 19-53.

Forsström, L., Sorvari, S. & Korhola, A. (2009). Phytoplankton distributions and the classification of ecological status in subarctic lakes of Finnish Lapland. Fundamental and Applied Limnology. Advances in Limnology 62: 77-97.

Albert, R-L., Sorvari, S. & Korhola, A. (2009). Analysis of factors controlling epilithic diatom community compositions in subarctic lakes of Finnish Lapland. Fundamental and Applied Limnology. Advances in Limnology 62: 125-151.

Leavitt, P.R., Fritz, S.C., Anderson, N.J., Baker, P.A., Blenckner, T., Bunting, L., Catalan, J., Conley, D.J., Hobbs, W., Jeppesen, E., Korhola, A., McGowan, S., Ruhland, K., Rusak, J., Simpson, G., Solovieva, N & Werne, J. (2009). Paleolimnological evidence of the effects on lakes of energy and mass transfer from climate and humans. Limnology and Oceanography 54: 2330-2348.

Camarero, L., Rogora, M., Mosello, R., Anderson, N.J., Barbieri, A., Botev, I., Kernan, M., Kopacek, J., Korhola, A., Lotter, A., Muri, G., Postolache, C., Suchlik, E., Thies, H.-J. & Wright, R.F. (2009). Regionalisation of chemical variability in European mountain lakes. Freshwater Biology 54: 2452–2469.

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2008

Schmidt R., M. Roth, R. Tessadri & K. Weckström (2008) Disentangling late-Holocene climate and land use impacts on an Austrian alpine lake using seasonal temperature anomalies, ice-cover, sedimentology, and pollen tracers. Journal of Paleolimnology 40:453–469.

Jia, G., Dungait, J.A.J., Bingham, E.M., Korhola, A., Väliranta, M. & Evershed, R.P. (2008). Neutral monosaccharides as biomarker proxies for bog-forming plants for application to palaeovegetation reconstruction in ombrotrophic peat deposits. Organic Geochemistry 39: 1790-1799.

Nyman, M., Weckström, J. & Korhola, A. (2008). Chironomid response to abiotic drivers during Holocene in a shallow tree-line lake in northwestern Fennoscandia The Holocene 18: 215-227.

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2007

Väliranta, M., Korhola, A., Sarmaja-Korjonen, K. Seppä, H, Tuittila, E-S, Laine, J. and Alm, J. (2007). High resolution reconstruction of wetness dynamics in a southern boreal raised bog during the late Holocene. The Holocene 17: 1093-1107.

Väliranta, M. & J. Weckström (2007). Principal components analysis (PCA) as a palaeoecological tool for separating subfossil birch fruits. Annales Botanici Fennici 44: 213-218.

Tuittila, E-S., Väliranta, M., Laine, J. & Korhola, A. (2007). Patterns and controls of mire vegetation succession in a central Finnish raised bog. Journal of Vegetation Science. 18: 891-902.

Szeroczyńska, K., Tatur, A., Weckström, J. (corresponding author), Gąsiorowski, M., Noryśkiewicz, A. & E. Sienkiewicz (2007). A multi-proxy assessment of the late-Quaternary environmental history from a small subarctic lake, northwest Finnish Lapland. Journal of Paleolimnology 38: 25-47.

Forsström, F., Sorvari, S., Rautio, M., Sonninen, E. & Korhola, A. (2007). Changes in physical and chemical limnology and plankton during the spring melt period in a subarctic lake. International Review of Hydrobiology 92: 301-325.

Weckström, K., Korhola, A. & Weckström, J. (2007). Impacts of eutrophication on diatom species richness in coastal waters of the Baltic Sea. Ambio 36: 155-160.

Vaalgamaa, S. & Korhola, A. (2007). Geochemical signatures of two different coastal depositional environments within the same catchment. Journal of Paleolimnology 38: 241-260.

Charman, D.J., Blundell, A. & ACCROTELM members (2007). A new European testate amoebae transfer function for palaeohydrological reconstruction on ombrotrophic peatlands. Journal of Quaternary Science 22: 209–221

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2006

Ellegaard M., A.L. Clarke, N. Reuss, S. Drew, K. Weckström, N. J. Anderson & D.J. Conley (2006) Long-term changes in plankton community structure and geochemistry in Mariager Fjord, Denmark, linked to increased nutrient loading. Estuarine, Coastal and Shelf Science 68: 567-578.

Weckström K. (2006) Assessing recent eutrophication in coastal waters of the Gulf of Finland (Baltic Sea) using subfossil diatoms. Journal of Paleolimnology 35: 571-592.

Weckström K. & S. Juggins (2006) Coastal diatom-environment relationships from the Gulf of Finland, Baltic Sea. Journal of Phycology 42: 21-35.

Väliranta, M. 2006. Long-term changes in aquatic plant species composition in North-eastern European Russia and Finnish Lapland, as evidenced by plant macrofossil analysis. Aquatic Botany 85: 224-232.

Oksanen, P. and Väliranta, M. 2006. Palsasuot muuttuvassa ilmastossa (Palsa mires in changing climate). Suo – Mires and peat 57: 2, 33-43 (English abstract).

Väliranta, M., Kultti, S. and Seppä, H. 2006. Vegetation dynamics during the Younger Dryas - Holocene transition in the extreme northern taiga zone, north-eastern European Russia, Boreas 35: 202-212.

Sarmaja-Korjonen, K., Nyman, M, Kultti, S. and Väliranta, M. 2006. Palaeolimnological development of Lake Njargajavri, northern Finnish Lapland, in a changing Holocene climate and environment. Journal of Paleolimnology 35: 65-81.

Väliranta, M. 2006. Terrestrial plant macrofossil records; possible indicators of past lake-level fluctuations in north-eastern European Russia and Finnish Lapland? Acta Palaeobotanica 46: 2, 235-243.

Hamilton, P & weckström, J. (2006). Nitzschia toskalnesis sp. nov. a new diatom from the sediments of Toskaljavri, northwestern Finland. In: Ognyanova-Rumenova, N. & Manoylov, K. (eds.), Advances In Phycological Studies. Festschrift in honour of Prof. Dobrina Temniskova-Topalova. PENSOFT Publishers & University Publishing House, Sofia-Moscow, pp. 97-109.

Korhola, A. & Nyman, M. (2006). Evidence from paleolimnological studies. In: AMAP Assessment 2006: Acidifying Pollutants, Arctic Haze, and Acidification in the Arctic, pp. 81-84. Arctic Monitoring and Assessment Programme (AMAP), Oslo, Norway.

Stoddard, J.L., Bergman, T. Forsström, L., Korhola, A., Lappalainen, A., Nyman, M., Schartau, A.K., Tammi, J. & Yakolev, V. (2006). Effects of acidification on Arctic biota. In: AMAP Assessment 2006: Acidifying Pollutants, Arctic Haze, and Acidification in the Arctic, pp. 81-84. Arctic Monitoring and Assessment Programme (AMAP), Oslo, Norway.

Korhola, A. (2006). Interpretation of diatom data. In: Elias, S (Editor-in-Chief), Ensyclopedia of Quaternary Science. Elsevier Scientific Publisher, UK: 494-507.

Weckström, J., Korholoa, A., Erästö, P. & Holmström, L. (2006). Temperature patterns over the past eight centuries in northern Fennoscandia inferred from sedimentary diatoms. Quaternary Research 66: 78-86.

Clarke, A.L., Weckström, K., Conley, D.J., Adser, F., Anderson, N.J., Andrén, E., de Jonge, V.N., Ellegaard, M., Juggins, S., Kauppila, P., Korhola, A., Reuss, N., Telford, R.J. & Vaalgamaa, S. (2006). Monitoring long-term trends in eutrophication and nutrients in the coastal zone. Limnology and Oceanography. 51: 385-397.

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2005

Wrona, F., Prowse, T., Reist, J., Beamish, R., Gibson, J.J., Hobbie, J., Jeppesen, E., King, J., Koeck, G,. Korhola, A., Lévesque, L., Macdonald, R., Power, M., Skvortsov, V. & Vincent, W. (2005). Freshwater Ecosystems and Fisheries. In: ACIA. Arctic Climate Impact Assessment. Cambridge University Press: 353-452.

Curtis, C.J., Botev, I., Camarero, L., Catalan, J., Cogalniceanu, D., Hughes, M., Kernan, M., Kopácek, J., Korhola, A., Psenner, R., Rogora, M., Stuchlík, E., Veronesi, M. & Wright, R.W. (2005). Acidification in European mountain lake districts: A regional assessment of critical load exceedance. Aquatic Sciences 67: 237-251.

Forsström, L., Sorvari, S. & Korhola, A. (2005). The role of the environmental factors in controlling the Chrysophyte species distribution and biomass structure in subarctic lakes of Finnish Lapland. Nova Hedwigia, Beihefte 128: 179-188.

Clarke, G.H., Kernan, M., Marchetto, A., Sorvari, S. &i Catalan, J.(2005). Using diatoms to assess geographical patterns of change in high-altitude European lakes from pre-industrial times to the present day. Aquatic Science 67: 224-236.

Thompson, R., Price, D., Cameron, N., Jones, V, Bigler, C., Catalan, J., Rosén, P., Hall, R.I., Weckstrom, J. & Korhola, A. (2005). Quantitative calibration of remote mountain lake sediments as climatic recorders of ice-cover duration. Arctic, Antarctic, and Alpine Research. 37: 626-637.

Väliranta, M., Kultti, S., Nyman, M. and Sarmaja-Korjonen, K. 2005. Holocene development of aquatic vegetation in a shallow Lake Njargajavri, Finnish Lapland with evidence of water level fluctuations and drying. Journal of Paleolimnology 34: 203-215.

Forsström, L., Sorvari, S., Korhola, A. & Rautio, M. (2005). Seasonality of phytoplankton in subarctic Lake Saanajärvi in NW Finnish Lapland. Polar Biology 28: 846-861.

Nyman, M. & Korhola, A. (2005). The classification of lakes using chironomids (Insecta: Diptera: Chironomidae) in western Finnish Lapland. Boreal Environment Research 10: 239-254.

Kauppila, P., Pitkänen, H., Korhola, A., Pellikka, K., Vaalgamaa, S. & Weckström, K. (2005). Assessing recovery from pollution and ecological status in an urban estuary, northern Baltic Sea. Verheissungen der Internationalen Vereinigung der gesamten Limnologie  29: 221-225.

Korhola, A., Tikkanen, M. & Weckström, J. (2005). Quantification of Holocene lake-level changes in Finnish Lapland using a cladocera – lake depth transfer model. Journal of Paleolimnology 34: 175-190.

Kauppila, P., Weckström, K., Vaalgamaa, S., Pitkänen, H., Korhola, A., Reuss, N., and Drew, S. (2005). Tracing pollution and recovery from sediments of an urban embayment: Are we far from ecological reference conditions? Marine Ecology Progress Series. 290: 35-53.

Smol, J.P., Wolfe, A.P., Birks, H.J.B., Douglas, M.S.V., Jones, V.J., Korhola, A., Pienitz, R., Rühland, K., Sorvari, S., Antoniades, D., Brooks, S.J., Fallu, M-A., Hughes, M., Keatley, B., Laing, T., Michelutti, N., Nazarova, L., Nyman, M., Paterson, A.M., Perren, B., Quinlan, R., Rautio, M., Saulnier-Talbot, E., Siitonen, S., Solovieva, N. & Weckström, J. (2005). Climate-Driven Regime Shifts in Arctic Lake Ecosystems. Proceedings of the National Academy of Science (PNAS) 102: 4397-4402.

Kumke, T., Kienel, U., Weckström, J. Korhola, A. & Hubberten, H.-W. (2005). Inferred Holocene palaeotemperatures from diatoms at Lake Lama, Central Siberia. Antarctic, Arctic & Alpine Research 36: 624-634.

Nyman, M., Korhola, A. & Brooks, S. (2005). The distribution and diversity of Chironomidae (Insecta: Diptera) in western Finnish Lapland, with special emphasis on shallow lakes. Global Ecology and Biogeography. 14: 137-153.

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2004

Snowball I., Korhola, A., Briffa, K. & Koç N. (2004). Holocene Climate Dynamics in High Latitude Europe and the North Atlantic. In: Battarbee, R.W., Gasse, F. & Stickling, C. (eds.), Past Climate variability through Europe and Africa. Kluwer Academic Publishers: 465-494.

Kultti S., Oksanen, P. and Väliranta, M. 2004. Multiproxy record of Holocene enviromental change in the Nenets Region, East-European Russian Arctic. Canadian Journal of Earth Sciences 41: 1141-1158.

Korhola, A. & Weckström, J. (2004). Paleolimnological studies in arctic Fennoscandia and the Kola Peninsula (Russia). In: R. Pienitz, M.S.V. Douglas & J.P. Smol (Eds). Long-term Environmental Change in Arctic and Antarctic Lakes. Kluwer Academic Publishers: 381-418.

Vasko, K., Toivonen, H. & Korhola, A. (2004). Segmentation of paleoecological spatio-temporal count data. Proceedings of Fourth International Workshop on Environmental Applications of Machine Learning (EAML 2004), 61-62, Bled, Slovenia, Sep-Oct 2004.

Vaalgamaa, S. & Korhola, A. (2004). Searching for order in chaos: A sediment geochemical study of a multiple-impacted bay of the Baltic Sea. Estuarine, Coastal and Shelf Science 59: 319-332.

Weckström, K., Juggins, S. & Korhola, A. (2004). Quantifying background nutrient concentrations in the coastal zone of the Baltic Sea. Ambio 33: 324-327.

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2003

Väliranta, M., Kaakinen, A. and Kuhry, P. 2003. Holocene climate and landscape evolution East of the Pechora delta, East-European Russian arctic. Quaternary Research 59: 335-344.

Kultti, S., Väliranta, M., Sarmaja-Korjonen, K., Solovieva, N., Virtanen, T., Kauppila, T. and Eronen, M. 2003. Palaeoecological evidence of changes in vegetation and climate during the Holocene in the pre-Polar Urals, Northeast European Russia. Journal of Quaternary Science 18(6): 503-520.

Sarmaja-Korjonen, K., Kultti, S., Solovieva, N. and Väliranta, M. 2003. Mid Holocene palaeoclimatic and palaeohydrological conditions in northeastern European Russia; a study of Vankavad Lake. Journal of Paleolimnology 30: 415-426.

Rautio, M. Korhola, A. & Zellmer, I.D. (2003). Vertical distribution of Daphnia longispina in a shallow subarctic pond: Does the interaction of ultraviolet radiation and Chaoborus predation explain the pattern? Polar Biology 26: 659-665.

Weckström, J., Snyder, J.A., Korhola, A., Laing, T.E. & MacDonald, G.M. (2003). Diatom inferred acidity history of 32 lakes on the Kola Peninsula, Russia. Water, Air and Soil Pollution 149: 339-361.

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2002

Catalan, J., Ventura, M., Brancelj, I. A., Granados, I., Thies, H., Nickus, U., Korhola, A., Lotter, A. F., Barbieri, A., Stuchlik, E., Lien, L., Bitušík, P., Buchaca, T., Camarero, L., Goudsmit, G. H., Kopácek, J., Lemcke, G., Livingstone, D. M., Müller, B., Rautio, M., Šiško, M., Sorvari, S., Šporka, F., Strunecký O. & Toro, M. (2002). Seasonal ecosystem variability in remote mountain lakes: implications for detecting climatic signals in the sediment record. Journal of Paleolimnology 28: 25-46.

Korhola, A., Sorvari, S., Rautio, M., Appleby, P.G., Dearing, J.A., Hy, Y., Rose, N. Lami, A. & Cameron, N.G. (2002). A multi-proxy analysis of climate impacts on recent development of subarctic Lake Saanajärvi in Finnish Lapland. Journal of Paleolimnology 28: 59-77.

Battarbee, R.W., Grytnes, J-A., Thompson, R., Appleby, P.G., Catalan, J., Korhola, A., Birks, H.J.B. & Lami, A. (2002). Climate variability and ecosystem dynamics at remote alpine and arctic lakes: the last 200 years. Journal of Paleolimnology 28: 161-179.

Weckström, K. & Korhola, A. & Shemeikka, P. (2002). Physical and chemical characteristics of shallow embayments on the southern coast of Finland. Hydrobiologia 477: 115-127.

Seppä, H., Nyman, M., Korhola, A. & Weckström, J. (2002). Changes of the tree-lines and alpine vegetation in relation to post-glacial climate dynamics in northern Fennoscandia based on pollen and chironomid records. Journal of Quaternary Science 17: 287-301.

Korhola, A., Vasko, K., Toivonen, H. TT. & Olander, H. (2002). Holocene temperature changes in northern Fennoscandia reconstructed from chironomids using Bayesian modelling. Quaternary Science Reviews 21: 1841-1860.

Laamanen, M. J., Forsström, L. & Sivonen, K. (2002). Diversity of Aphanizomenon flos-aquae (Cyanobacterium) populations along a Baltic Sea salinity gradient. Applied and Environmental Microbiology 68: 5296-5303.

Rautio, M. & Korhola, A. (2002). Effects of ultraviolet radiation and dissolved organic carbon on the survival of subarctic zooplankton. Polar Biology 25: 460-468.

Korhola, A., Weckström, J. & Blom, T. (2002). Relationships between lake and land-cover features along latitudinal vegetation ecotones in arctic Fennoscandia. Archiv für Hydrobiologie, Suppl. 139/2, Monograph Studies, pp. 203-235.

Sorvari, S. Korhola, A. & Thompson, R. (2002). Lake diatom response to recent Arctic warming in Finnish Lapland. Global Change Biology 8: 153-163.

Rautio, M. & Korhola, A. (2002). UV-induced pigmentation in subarctic Daphnia. Limnology and Oceanography 47: 295-299.

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2001-1991

Korhola, A. & M. Rautio (2001). Cladocera and other branchiopod crustaceans. In: J.P. Smol, H.J.B. Birks & W.M. Last (eds.), Tracking Environmental Change Using Lake Sediments Volume 4: Zoological Indicators. Kluwer Academic Publishers, Dordrecht. pp 5-41.

Korhola, A. & J. P. Smol (2001). Ebridians. In: J.P. Smol, H.J.B. Birks & W.M. Last (eds.), Tracking Environmental Change Using Lake Sediments Volume 3: Terrestrial, Algal, and Siliceous Indicators. Kluwer Academic Publishers, Dordrect. pp. 225-234.

Korhola, A., Birks, H. J. B., Olander, H. & Blom, T. (2001). Chironomids, temperature, and numerical models: a reply to Seppälä. The Holocene 11: 613-620.

Weckström, J. & Korhola, A. (2001). Patterns in the distribution, composition and diversity of diatom assemblages in relation to ecoclimatic factors in Arctic Lapland. Journal of Biogeography 28: 31-46.

Toivonen, H., Mannila, H., Korhola, A. & Olander, H. (2001). Applying Bayesian statistics to organism-based environmental reconstruction. Ecological Applications 11: 618-630.

Rautio, M. Sorvari, S. & Korhola, A. (2000). Diatom and crustacean zooplankton communities, their seasonal variability and representation in the sediments of subarctic Lake Saanajärvi. Journal of Limnology 59: 81-96.

Holmström, L., Erästö, P., Koistinen, P., Weckström, J. & Korhola, A. (2000). Using smoothing to reconstruct the Holocene temperature in Lapland. In: E. Wegman and Y. Martinez, editors, Computing Science and Statistics, 32. Modeling the Earth's Systems: Physical to Infrastructural. Proceedings of the 32nd Symposium on the Interface, pages 425-437, Fairfax Station, VA, USA, 2000. Interface Foundation of North America, Inc. Invited paper.

Sarmaja-Korjonen, K., Hakojärvi, M. & Korhola, A. (2000). Subfossil remains of an unknown chydorid (Anomopoda: Chydoridae) from Finland. Hydrobiologia (Kluwer) 436: 165-169.

Blom, T., Korhola, A., Weckström, J., Laing, T., Snyder, J., MacDonald, G. M. & Smol, J. P. (2000). Physical and chemical characterisation of small subarctic headwater lakes in Finnish Lapland and the Kola Peninsula. Verheissungen der Internationalen Vereinigung der gesamten Limnologie 27: 316-320.

Korhola, A., Weckström, J., Holmström, L. & Erästö, P. (2000). A quantitative Holocene climatic record from diatoms in northern Fennoscandia. Quaternary Research 54: 284-294.

Vasko, K., Toivonen, H.T.T. & Korhola, A. (2000). A Bayesian multinomial Gaussian response model for organism-based environmental reconstruction. Journal of Paleolimnology 24: 243-250. (Rapid Communication).

Sorvari, S., Rautio, M. & Korhola, A. (2000). Seasonal dynamics of subarctic Lake Saanajärvi in Finnish Lapland. Verheissungen der Internationalen Vereinigung der gesamten Limnologie 27: 507-512.

Korhola, A., Olander, H. & Blom, T. (2000). Cladoceran and chironomid assemblages as quantitative indicators of water depth in subarctic Fennoscandian lakes. Journal of Paleolimnology 24: 43-53.

Moser, K., Korhola, A., Weckström, J., Blom, T., Pienitz, R., Smol, J. P., Douglas, M. S. V. & Hay, M. (2000). Paleohydrology inferred from diatoms in northern latitude regions. Journal of Paleolimnology 24: 93-107.

Seppä, H. & Weckström, J. (1999). Holocene vegetational and limnological changes in the Fennoscandian tree-line area as documented by pollen and diatom records from Lake Tsuolbmajavri, Finland. Ecoscience 6: 621-635.

Korhola, A., Weckström, J. & Nyman, M. (1999). Predicting the long-term acidification trends in small subarctic lakes using diatoms. Journal of Applied Ecology 36: 1021-1034.

The MOLAR Water Chemistry Group (1999). The MOLAR project: atmospheric deposition and lake water chemistry. Journal of Limnology 58: 88-106.

Alm, J., Korhola, A., Turunen, J., Saarnio, S., Jungner, H., Tolonen, K. & Silvola, J. (1999). Past and future atmospheric carbon gas (CO2, CH4) exchange in boreal peatlands. International Peat Journal 9: 127-135.

Toivonen, H., Vasko, K., Mannila, H., Korhola, A. & Olander, H. (1999). Bayesian modeling in paleoenvironmental reconstruction. ACAI Workshop on Intelligent Techniques for Spatio-Temporal Data Analysis in Environmental Applications: 76-85.

Olander, H., Birks, H. J. B., Korhola, A. & Blom, T. (1999). An expanded calibration model for inferring lakewater and air temperatures from fossil chironomid assemblages in northern Fennoscandia. The Holocene 9: 279-294.

Korhola, A., Lotter A. F.,. Birks, H. J. B and Cameron, N. G. (1999). Climate history as recorded by ecologically sensitive arctic and alpine lakes in Europe during the last 10,000 years: a multi-proxy approach (CHILL-10,000). In: Proceedings of the European Climate Science Conference, Vienna, City Hall, 19-23 October, 1998. CD-Rom.

Korhola, A., Blom, T. & Virkanen, J. (1999). Diatom assemblage changes in relation to sediment characteristics in Töölö Bay, central Helsinki: an example of urban palaeolimnology. In: S. Mayama, Y. Idei & I. Koizumi (eds.) Proceedings of  the fourteenth International Diatom Symposium, Tokyo, Japan, September 2-8, 1996: 479-488. Koeltz Scientific Books.

Korhola, A. & Grönlund, T. (1999). Observations of Ebria tripartita (Schumann) Lemmermann in Baltic sediments. Journal of Paleolimnology 21:1-8.

Korhola, A. (1999). Distribution patterns of Cladocera in subarctic Fennoscandian lakes and their potential in environmental reconstruction. Ecography 22: 357-373.

Sorvari, S. & Korhola, A. (1998). Recent diatom assemblage changes in subarctic Lake Saanajärvi, NW Finnish Lapland, and their palaeoenvironmental implications. Journal of Paleolimnology 20: 205-215.

Korhola, A., Weckström, J. Olander, H. & Blom, T. (1998). Assessment of chironomid, cladoceran and diatom assemblages as markers of global change in subarctic Fennoscandian lakes. In: Lemmelä, R. & Helenius, N. (Eds.), Proceedings of The Second International Conference on Climate and Water, Espoo, Finland, 17-20 August 1998: 562-575.

Blom, T., Korhola, A. & Weckström, J. (1998). Physical and chemical characterisation of small subarctic lakes in Finnish Lapland with special reference to climate change scenarios. In: Lemmelä, R. & Helenius, N. (Eds.), Proceedings of The Second International Conference on Climate and Water, Espoo, Finland, 17-20 August 1998: 576-587.

Mannila, H., Toivonen, H., Korhola, A. & Olander, H. (1998). Learning, mining, or modeling? A case study from palaeoecology. Lecture Notes in Artificial Intelligence 1532: 12-24.

Håkansson, H. & Korhola, A. (1998). Phenotypic plasticity in the diatom Cyclotella meneghiniana or a new species? Nova Hedwigia 66: 187-196.

Virkanen, J., Korhola, A., Tikkanen, M. and Blom, T. (1998). Reply to Jaana Turkia’s comment on Virkanen et al. (1997). Journal of Paleolimnology 20: 104.

Weckström, J., Korhola, A. & Blom, T. (1997). Diatoms as quantitative indicators of pH and water temperature in subarctic Fennoscandian lakes. Hydrobiologia (Kluwer) 347: 171-184.

Olander, H., Korhola, A. & Blom, T. (1997). Surface sediment Chironomidae (Insecta: Diptera) distributions along an ecotonal transect in subarctic Fennoscandia: developing a tool for palaeotemperature reconstructions. Journal of Paleolimnology 18: 45-59.

Tikkanen, M., Korhola, A., Seppä, H. & Virkanen, J. (1997). A long-term record of human impact on an urban ecosystem in the sediments of Töölönlahti Bay in Helsinki, Finland. Environmental Conservation 24: 326-337.

Virkanen, J., Korhola, A., Tikkanen, M. and Blom, T. (1997). Recent environmental changes in a naturally acid rocky lake in southern Finland, as reflected in its sediment geochemistry and biostratigraphy. Journal of Paleolimnology 17: 191-213.

Korhola, A. & Tikkanen, M. (1997). Evidence for a more recent occurrence of waterchestnut (Trapa natans L.) in Finland and its palaeoenvironmental implications. The Holocene 7: 39-44.

Weckström, J., Korhola, A. & Blom, T. (1997). The relationship between diatoms and water temperature in thirty subarctic Fennoscandian lakes. Arctic and Alpine Research 29: 75-92.

Korhola, A. & Blom, T. (1996). Marked early 20th century pollution and the subsequent recovery of Töölö Bay, central Helsinki, as indicated by subfossil diatom assemblage changes. Hydrobiologia (Kluwer) 341: 169-179.

Korhola, A. & Tikkanen, M. (1996). The early postglacial history of the lake Sirkkajärvi, southern Finland, with implications to the ”g stage” of the Baltic. Geografiska Annaler 78 A: 235-245.

Korhola, A., Alm, J., Tolonen, K., Turunen, J. & Jungner, H. (1996). Three-dimensional reconstruction of carbon accumulation and CH4 emission during nine millenia in a raised mire. Journal of Quaternary Science 11: 161-165.

Korhola, A., Virkanen, J., Tikkanen, M. & Blom, T. (1996). Fire induced pH rise in a naturally acid hill-top lake, southern Finland: a palaeocological survey. Journal of Ecology 84: 257-265.

Korhola, A. (1996). Initiation of a sloping mire complex in soutwestern Finland: autogenic versus allogenic controls. Ecoscience 3: 216-222.

Korhola, A., Tolonen K., Turunen, J. & Jungner, H. (1996). Estimating long-term carbon accumulation rates in Boreal peatlands by radiocarbon dating. Radiocarbon 37: 575-584.

Korhola, A. (1995). The Litorina transgression in the Helsinki region, southern Finland: new evidence from coastal mire deposits. Boreas 24: 173-183.

Korhola, A. (1995). Holocene Nitzschia scalaris (Ehr.) W. Smith blooms in two coastal glo-lakes of Finland. In: Marino, D. & Montresor, M. (Eds.), Proceedings of the Thirteenth International Diatom Symposium, Maratea, Italy, 1st - 7th September 1994. Biopress Limited. Bristol: 521-529.

Korhola, A. (1995). Holocene climatic variations in southern Finland reconstructed from peat initiation data. The Holocene 5: 43-58.

Korhola, A. (1994). Radiocarbon evidence for rates of lateral expansion in raised mires in southern Finland. Quaternary Research 42: 299-307.

Korhola, A. & M. Tikkanen (1992). The lateglacial - early postglacial transition in the pollen stratigraphy of lake Pieni Majaslampi, Espoo, Southern Finland. In Grönlund, E. (ed.): The first meeting of Finnsih palaeobotanists; state of the art in Finland - May 2-4, 1990. University of Joensuu, Publications of Karelian Institute 102: 85-98.

Korhola, A. (1992). The Early Holocene hydrosere in a small acid hill-top basin studied using crustacean sedimentary remains. Journal of Paleolimnology 7: 1-22.

Korhola, A. (1992). Mire induction, ecosystem dynamics and lateral extension on raised bogs in the southern coastal area of Finland. Fennia 107: 25-94.

Korhola, A. & M. Tikkanen (1991). Holocene development and early extreme acidification in a small hilltop lake in southern Finland. Boreas 20: 333-356.

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