Appendices

Supplementary material for: Kuhn & Ruprecht (2023)

• Supplementary Fig. S1. - Photographs of the regions studied.
• Supplementary Fig. S2. - Correlations between environmental variables included in the modelling of niche breadth and overlap of species and hybrids of Crataegus in north-western Romania.
• Supplementary Fig. S3. - Photographs of the taxa of Crataegus identified in the area studied.
• Supplementary Table S1. - Crataegus taxa identified in the study area, their distribution, habitat preference and frequency.
• Supplementary Table S2. - Conditional, constrained and unconstrained variance fractions explained by full and reduced pCCA models
• Supplementary Table S3. - Characterization of the 10 vegetation clusters obtained using divisive hierarchical clustering and the gap statistical method.