Appendices

Supplementary material for: Peterka et al. (2023)

• Supplementary Data S1. – Sources and preliminary data selection.
• Supplementary Data S2. – List of aggregates.
• Supplementary Data S3. – Formal definition of the Montio-Cardaminetea class and list of spring-positive species and neutral species.
• Supplementary Data S4. – Results of unsupervised classifications of pan-European dataset.
• Supplementary Data S5. – Results of unsupervised classification of regional subsets.
• Supplementary Data S6. – Sociological species groups and formal definitions of cores of spring alliances.
• Supplementary Data S7. – Expert system for identifying vegetation plots of Montio-Cardaminetea and for classifying plots into subordinate orders and alliances.
• Supplementary Data S8. – Brief guide to the practical use of the expert system.
• Supplementary Data S9. – Examples of associations for individual alliances.
• Supplementary Table S1. – Full version of the synoptic table with the core plots of the alliances.
• Supplementary Table S2. – Full version of the synoptic table with the core and non-core plots of the alliances.
• Supplementary Table S3. – Synoptic table of orders of the class Montio-Cardaminetea.
• Supplementary Fig. S1. – NMDS ordination analysis of core and non-core vegetation plots.
• Supplementary Fig. S2. – NMDS analyses of plots classified at the order level.