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.