<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Xerothermic grasslands from three stands in the surroundings of the town of Pilica in the Kraków-Częstochowa Upland were investigated. It was ascertained that they represent two phytosociological units: <italic>Adonido-Brachypodietum</italic> (with two variants) and <italic>Silene otites-Thymus austriacus</italic> community. Moreover, phytocoenoses with a high contribution of xerothermic plants (<italic>Thymus-Anthyllis vulneraria</italic> community) were found in some places on the abandoned fields. On the basis of the comparison of new data and old phytosociological relevés, only slight changes over 30 years were observed. The differences concerned mostly the coverage of particular species. However, some plants disappeared and other were new (e.g. seedlings of trees and shrubs). Generally, these species were not too frequent and had inconsiderable cover. The changes which occurred manifested themselves also in the differences of mean values of some ecological indicators and in the increase of competitors, as well as clonal species.</p></abstract>

Xerothermic grasslands from three stands in the surroundings of the town of Pilica in the Kraków-Częstochowa Upland were investigated. It was ascertained that they represent two phytosociological units: Adonido-Brachypodietum (with two variants) and Silene otites-Thymus austriacus community. Moreover, phytocoenoses with a high contribution of xerothermic plants (Thymus-Anthyllis vulneraria community) were found in some places on the abandoned fields. On the basis of the comparison of new data and old phytosociological relevés, only slight changes over 30 years were observed. The differences concerned mostly the coverage of particular species. However, some plants disappeared and other were new (e.g. seedlings of trees and shrubs). Generally, these species were not too frequent and had inconsiderable cover. The changes which occurred manifested themselves also in the differences of mean values of some ecological indicators and in the increase of competitors, as well as clonal species.

Xerothermic grasslands of Pilica surroundings - diversity, threats and directions of changes

Department of Geobotany and Nature Protection, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellońska 28, 40-032 Katowice, Poland

Biodiversity Research and Conservation

Xerothermic grasslands from three stands in the surroundings of the town of Pilica in the Kraków-Częstochowa Upland were investigated. It was ascertained that...

Xerothermic grasslands of Pilica surroundings - diversity, threats and directions of changes

Online veröffentlicht: 22. Feb. 2012

Seitenbereich: 59 - 70

DOI: https://doi.org/10.2478/v10119-011-0019-5

Schlüsselwörter
xerothermic vegetation, secondary succession, threats to grasslands, Kraków-Częstochowa Upland

This content is open access.

Xerothermic grasslands of Pilica surroundings - diversity, threats and directions of changes

Online veröffentlicht: 22. Feb. 2012

Seitenbereich: 59 - 70

DOI: https://doi.org/10.2478/v10119-011-0019-5

Schlüsselwörterxerothermic vegetation, secondary succession, threats to grasslands, Kraków-Częstochowa Upland

This content is open access.

Schlüsselwörter
xerothermic vegetation, secondary succession, threats to grasslands, Kraków-Częstochowa Upland