A new framework for understanding Pannonian vegetation patterns: Regularities, deviations and uniqueness

G. Fekete, Zs Molnár, E. Magyari, I. Somodi, Z. Varga

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In this paper, we elaborated a new concept (the Regularities-Deviations- Uniqueness; RDU framework) to analyse regional vegetation patterns and applied it to the Pannonian region of the Carpathian Basin. We introduced three criteria, namely: distributional regularity, distributional deviation, and compositional uniqueness. Regularities conform to the pattern expected based on macroclimate and relief. Deviations are singular phenomena and are defined as the conspicuous departures from the regular pattern at odds with either zonal pattern (climate rules), or the repetitive extrazonal patterns (relief and meso-climate interactions). Endemic plant communities of the Pannonian region (defined by a unique species composition) are regarded as the unique features. The main regularities recognised for the Pannonian region are: (1) the altitudinal pattern of vegetation belts, (2) the horizontal zonation of the Dunántúl, (3) the gradient of continentality along the mountain ranges, and (4) the circular zonality of the Nagyalföld. Deviations are mostly explained by local vegetation history, mesoclimate, and edaphic factors. The major deviations include (i) occurrence of mixed Pinus sylvestris forests in Orség, (ii) cool continental forest-steppe forests on Kisalföld, and Gödölloi-dombvidék, (iii) the direct contact of Fagus and Quercus pubescens forests (Bakony, Balatonfelvidék), (iv) the Fraxinus excelsior-Tilia spp. forests on rock outcrops, and (v) the Sphagnum bogs on the Alföld. Individuality of the Pannonian region is demonstrated by the endemic zonal forest-steppe forests and intrazonal endemic communities such as the Cerasus mahaleb-Quercus pubescens forests, and the vegetation on calcareous sand, dolomite and saline soils and the like. We argue that the introduced criteria are suitable for the entitation and description of other biogeographical regions, and offer useful tool for interregional comparisons.

Original languageEnglish
Pages (from-to)12-26
Number of pages15
JournalCommunity Ecology
Volume15
Issue number1
DOIs
Publication statusPublished - Jun 1 2014

Fingerprint

vegetation
forest-steppe
Quercus pubescens
relief
climate
steppes
biogeographical region
vegetation history
saline soil
Prunus mahaleb
bog
Tilia
Fraxinus excelsior
zonation
dolomite
plant community
saline soils
Sphagnum
outcrop
bogs

Keywords

  • Carpathian Basin
  • Endemic community
  • Spatial scale
  • Species composition
  • Vegetation history
  • Vegetation map
  • Vegetation-geographical region

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

Cite this

A new framework for understanding Pannonian vegetation patterns : Regularities, deviations and uniqueness. / Fekete, G.; Molnár, Zs; Magyari, E.; Somodi, I.; Varga, Z.

In: Community Ecology, Vol. 15, No. 1, 01.06.2014, p. 12-26.

Research output: Contribution to journalArticle

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