Grazed Pannonian grassland beta-diversity changes due to C 4 yellow bluestem

Szilárd Szentes, Zsuzsanna Sutyinszki, Gábor Szabó, Zita Zimmermann, Judit Házi, Barnabás Wichmann, Levente Hufnágel, Károly Penksza, Sándor Bartha

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This study investigates how yellow bluestem affects biodiversity in a typical Pannonian grassland. Beta diversity (i. e. the finescale spatial variability of species compositions), was estimated by the realized number of species combinations sampled at various scales. Sampling was performed by a standard protocol. Presences of plant species were recorded along 52. 2 m long belt transect of 1044 units of 0. 05x0. 05 m contiguous microquadrats. According to the results the massive presence of tested C 4 grass significantly reduced species richness of the grassland. Beta diversity assessment revealed that 90% of species combinations were lost due to yellow bluestem invasion. Fine-scale spatial pattern analyses showed complete local extinctions of other species from microsites dominated by yellow bluestem. This local extinction is enhanced by the specific clonal architecture of this species and by the accumulation of litter. Other dominant grasses had no effect on fine scale diversity, i. e. they could coexist well with other elements of the local flora. This study presents currently developed microhabitat types, forecasts and also draws attention to the danger that climate warming will probably enhance the spread of this detrimental C 4 species.

Original languageEnglish
Pages (from-to)1055-1065
Number of pages11
JournalCentral European Journal of Biology
Volume7
Issue number6
DOIs
Publication statusPublished - Oct 18 2012

    Fingerprint

Keywords

  • Climate change
  • Dominant grass
  • Litter
  • Plant neighbourhood diversity
  • Spatial association

ASJC Scopus subject areas

  • Neuroscience(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Szentes, S., Sutyinszki, Z., Szabó, G., Zimmermann, Z., Házi, J., Wichmann, B., Hufnágel, L., Penksza, K., & Bartha, S. (2012). Grazed Pannonian grassland beta-diversity changes due to C 4 yellow bluestem. Central European Journal of Biology, 7(6), 1055-1065. https://doi.org/10.2478/s11535-012-0101-9