Holocene changes in vegetation composition in northern Europe: why quantitative pollen-based vegetation reconstructions matter

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dc.contributor.authorMarquer, Len_AU
dc.contributor.authorGaillard, MJen_AU
dc.contributor.authorSugita, Sen_AU
dc.contributor.authorTrondman, AKen_AU
dc.contributor.authorMazier, Fen_AU
dc.contributor.authorNielsen, ABen_AU
dc.contributor.authorFyfe, RMen_AU
dc.contributor.authorOdgaard, BVen_AU
dc.contributor.authorAlenius, Ten_AU
dc.contributor.authorBirks, JBen_AU
dc.contributor.authorBjune, AEen_AU
dc.contributor.authorChristiansen, Jen_AU
dc.contributor.authorDodson, JRen_AU
dc.contributor.authorEdwards, KJen_AU
dc.contributor.authorGiesecke, Ten_AU
dc.contributor.authorHerzschuh, Uen_AU
dc.contributor.authorKangur, Men_AU
dc.contributor.authorLorenz, Sen_AU
dc.contributor.authorPoska, Aen_AU
dc.contributor.authorSchult, Men_AU
dc.contributor.authorSeppä, Hen_AU
dc.date.accessioned2016-09-30T00:46:09Zen_AU
dc.date.available2016-09-30T00:46:09Zen_AU
dc.date.issued2014-04-15en_AU
dc.date.statistics2016-09-30en_AU
dc.description.abstractWe present pollen-based reconstructions of the spatio-temporal dynamics of northern European regional vegetation abundance through the Holocene. We apply the Regional Estimates of VEgetation Abundance from Large Sites (REVEALS) model using fossil pollen records from eighteen sites within five modern biomes in the region. The eighteen sites are classified into four time-trajectory types on the basis of principal components analysis of both the REVEALS-based vegetation estimates (RVs) and the pollen percentage (PPs). The four trajectory types are more clearly separated for RVs than PPs. Further, the timing of major Holocene shifts, rates of compositional change, and diversity indices (turnover and evenness) differ between RVs and PPs. The differences are due to the reduction by REVEALS of biases in fossil pollen assemblages caused by different basin size, and inter-taxonomic differences in pollen productivity and dispersal properties. For example, in comparison to the PPs, the RVs show an earlier increase in Corylus and Ulmus in the early-Holocene and a more pronounced increase in grassland and deforested areas since the mid-Holocene. The results suggest that the influence of deforestation and agricultural activities on plant composition and abundance from Neolithic times was stronger than previously inferred from PPs. Relative to PPs, RVs show a more rapid compositional change, a largest decrease in turnover, and less variable evenness in most of northern Europe since 5200 cal yr BP. All these changes are primarily related to the strong impact of human activities on the vegetation. This study demonstrates that RV-based estimates of diversity indices, timing of shifts, and rates of change in reconstructed vegetation provide new insights into the timing and magnitude of major human disturbance on Holocene regional vegetation, features that are critical in the assessment of human impact on vegetation, land-cover, biodiversity, and climate in the past. © 2014, Elsevier Ltd.en_AU
dc.identifier.citationMarquer, L., Gaillard, M. J., Sugita, S., Trondman, A. K., Mazier, F., Nielsen, A. B., Fyfe, R. M., Van Odgaard, B., Alenjuis, T., Birks, H. J. B., Bjune, A. E., Christiansen, J., Dodson, J. Edwards, K. J., Giesecke, T., Herzschuh, U., Hangur, M., Lorenz, S., & Seppä, H. (2014). Holocene changes in vegetation composition in northern Europe: why quantitative pollen-based vegetation reconstructions matter. Quaternary Science Reviews, 90, 199-216. doi:10.1016/j.quascirev.2014.02.013en_AU
dc.identifier.govdoc7201en_AU
dc.identifier.issn0277-3791en_AU
dc.identifier.journaltitleQuaternary Science Reviewsen_AU
dc.identifier.pagination199-216en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.quascirev.2014.02.013en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7618en_AU
dc.identifier.volume90en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectPollenen_AU
dc.subjectEuropeen_AU
dc.subjectFossilsen_AU
dc.subjectPlantsen_AU
dc.subjectQuaternary perioden_AU
dc.subjectRadiometersen_AU
dc.titleHolocene changes in vegetation composition in northern Europe: why quantitative pollen-based vegetation reconstructions matteren_AU
dc.typeJournal Articleen_AU
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