Dry grasslands in the Western Carpathians and the northern Pannonian Basin: a numerical classification.

Daniela Dúbravková 1 , Milan Chytrý 3 , Wolfgang Willner 4 , Eszter Illyés 5 , Monika Janišová 1 & Júlia Kállayné Szerényi 7

Affiliations

  1. Institute of Botany, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 23 Bratislava, Slovakia
  2. Department of Botany and Zoology, Masaryk University, Kotlářská 2, CZ-611 37 Brno, Czech Republic
  3. Vienna Institute for Nature Conservation and Analyses (VINCA), Giessergasse 6/7, A-1090 Vienna, Austria
  4. Institute of Ecology and Botany, Hungarian Academy of Sciences, 2-4 Alkotmány Street, H-2163 Vácrátót, Hungary
  5. Department of Plant Taxonomy and Ecology, Eötvös Loránd University, Pázmány Péter Sétány 1/C, H-1117 Budapest, Hungary
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Abstract

A syntaxonomical revision of dry grasslands of the alliances Bromo pannonici-Festucion pallentis, Festucion valesiacae and Koelerio-Phleion phleoidis (class Festuco-Brometea) in the natural biogeographical region of the Western Carpathians and northern Pannonian Basin is presented. A geographically stratified data set of 2686 relevés from the south-eastern Czech Republic, northeastern Austria, Slovakia and northern Hungary was divided into 25 clusters using a modified TWINSPAN algorithm. The proposed classification simplifies and unifies the previous syntaxonomical systems, which differ in these four countries. Main environmental gradients responsible for variation in species composition of theses grasslands were revealed by detrended correspondence analysis and interpreted using indicator values. The major pattern of variation reflects soil nutrient availability and moisture, which are negatively correlated with soil reaction.

Keywords

Austria, Bromo pannonici-Festucion pallentis, Czech Republic, Festucion valesiacae, Hungary, Koelerio-Phleion phleoidis, TWINSPAN, Slovakia, steppe vegetation, syntaxonomy

How to cite

Dúbravková D., Chytrý M., Willner W., Illyés E., Janišová M. & Kállayné Szerényi J. (2010) Dry grasslands in the Western Carpathians and the northern Pannonian Basin: a numerical classification. – Preslia 82: 165–221