Journal article

A survey of modern pollen and vegetation along an altitudinal transect in southern Georgia, Caucasus region

Simon E Connor, Ian Thomas, Eliso V Kvavadze, Giorgi J Arabuli, Genia S Avakov, Antonio Sagona

REVIEW OF PALAEOBOTANY AND PALYNOLOGY | ELSEVIER SCIENCE BV | Published : 2004

Abstract

This paper describes the pollen representation of vegetation patterns along an altitudinal transect in the South Caucasus region. Surface sediments from eight small- to medium-sized lakes and wetlands were analysed for modern pollen, and the results analysed numerically using detrended correspondence analysis (DCA) and dichotomised ordination (TWINSPAN). Pollen spectra from the semidesert region have a clear palynological signal characterised by an abundance of Chenopodiaceae. Differentiation of oak forest, upper tree-line and subalpine communities is more difficult: all are dominated by arboreal pollen (AP) types. The authors propose a number of indicator pollen types and pollen threshold v..

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