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Preprints
https://doi.org/10.5194/essd-2019-242
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2019-242
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  28 Feb 2020

28 Feb 2020

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A revised version of this preprint was accepted for the journal ESSD.

Compilation of pollen productivity estimates and a taxonomically harmonised PPE dataset from Northern Hemisphere extratropics

Mareike Wieczorek1 and Ulrike Herzschuh1,2,3 Mareike Wieczorek and Ulrike Herzschuh
  • 1Alfred-Wegener-Institut Helmholtz-Zentrum für Polar-und Meeresforschung, Telegrafenberg A45, 14473 Potsdam, Germany
  • 2University of Potsdam, Institute of Biochemistry and Biology, 14476 Potsdam, Germany
  • 3University of Potsdam, Institute of Environmental Sciences and Geography, 14476 Potsdam, Germany

Abstract. Abstract Pollen productivity estimates (PPEs) are fractionate values of relative pollen productivity, often in relation to Poaceae, that allow vegetation cover to be estimated from pollen counts. PPEs are especially used in the European and Chinese scientific community, with a few studies in North America. Here we present a comprehensive compilation of available PPE studies and their results arising from 40 publications with 49 sites and 99 taxa. This compilation allows scientists to identify the best PPE for their own studies and to identify data-gaps in need of further PPE analyses. We also present a taxonomically harmonised, unified PPE dataset, which we generated from the available studies. Studies which did not have Poaceae as reference taxon were not included unless they included taxa which would otherwise drop out of the dataset. The unified dataset is based on 30 publications and 34 sites, and gives the mean PPE per taxon excluding outliers as well as fall speeds, which are necessary to reconstruct vegetation cover from pollen counts and PPE values. It contains 58 PPEs and 57 fall speeds, with 54 taxa having values for both. This dataset can be applied to broad scale or long-term pollen-vegetation analyses. Data are available at https://doi.pangaea.de/10.1594/PANGAEA.908862 (Wieczorek and Herzschuh, 2019).

Mareike Wieczorek and Ulrike Herzschuh

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Mareike Wieczorek and Ulrike Herzschuh

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Compilation of pollen productivity estimates and a taxonomically harmonised PPE dataset from Northern Hemisphere extratropics M. Wieczorek and U. Herzschuh https://doi.pangaea.de/10.1594/PANGAEA.908862

Mareike Wieczorek and Ulrike Herzschuh

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Short summary
Pollen Productivity Estimates (PPE) are used to calculate vegetation cover from pollen records. This study provides (i) a compilation of northern hemispheric PPE-studies, allowing researchers to identify the best set for their study region and to identify data-gaps for future research, and (ii) a taxonomically harmonized, unified PPE-set, generated from the available studies, to be applied to broad scale pollen records.
Pollen Productivity Estimates (PPE) are used to calculate vegetation cover from pollen records....
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