Relative Pollen Productivity Estimates for Mediterranean Plant Taxa: A New Study Region in Turkey

Esra Ergin (), Laurent Marquer, Florence Mazier, Ugo Bisson and Hasan Nüzhet Dalfes
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Esra Ergin: Eurasia Institute of Earth Sciences, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
Laurent Marquer: Department of Botany, University of Innsbruck, Sternwartstrasse 15, 6020 Innsbruck, Austria
Florence Mazier: Laboratoire Géographie de l’Environnement, UMR 5602, CNRS, Université de Toulouse-Jean Jaurès, 31058 Toulouse, France
Ugo Bisson: Department of Botany, University of Innsbruck, Sternwartstrasse 15, 6020 Innsbruck, Austria
Hasan Nüzhet Dalfes: Eurasia Institute of Earth Sciences, Istanbul Technical University, Maslak, Istanbul 34469, Turkey

Land, 2024, vol. 13, issue 5, 1-21

Abstract: This study estimates relative pollen productivity (RPP) for plant taxa from Southern Anatolia, an important region in the Mediterranean with a long history of human settlements. RPP estimates are required for quantitative pollen-based reconstruction of past land cover modelling. The application of the reconstruction by the REVEALS model in the Mediterranean basin is constrained due to the scarcity of the RPP values specific to the region. To better understand the relationship between vegetation cover and land use in the Mediterranean area, the present study aims to provide a set of RPPs for Turkey and the Mediterranean region. The study area centres around Gölhisar Lake in southwestern Turkey. Modern pollen data are collected from moss pollsters from 21 sites together with vegetation surveys. RPP estimates for the main taxa characteristic of the Mediterranean region are obtained (referenced to evergreen Quercus t.) using the extended R-value (ERV) model through the analysis of modern pollen assemblages. The most reliable results are acquired with the ERV sub-model 2 and Prentice’s taxon-specific method (using a Gaussian plume dispersal model) to distance-weighted vegetation data, corresponding to a Relative Source Area of Pollen (RSAP) value of 102 m. RPPs of dominant taxa in the study area are obtained for Quercus coccifera /Fagaceae (1 ± 0), Juniperus /Cupressaceae (0.279 ± 0.001), Fabaceae (0.008 ± 0.000), Pinus /Pinaceae (5.782 ± 0.011), and Poaceae (0.112 ± 0.001) and are comparable with other RPPs obtained in the Mediterranean region.

Keywords: pollen–vegetation relationships; Mediterranean vegetation; ERV model; pollen-based land cover modelling; southwestern Turkey (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2024
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