U232 Oro-Cantabrian siliceous screes

Frequent species show the percentage of occurrence of species in each habitat, with higher values indicating more observations within the total number of samples. Indicator species show the fidelity of species to each habitat, with higher values indicating a stronger association, based on the IndVal metric (Dufrêne & Legendre, 1997). All species values were obtained from numerical classification (Jiménez-Alfaro et al. 2025). The classification of anthropogenic habitats (EUNIS code “V”) was conducted separately (Fernández-Pascual et al. 2025).

References

• Dufrêne, M., & Legendre, P. (1997). Species assemblages and indicator species: the need for a flexible asymmetrical approach. Ecological monographs, 67(3), 345-366.
• Fernández-Pascual, E., González-García, V., Ivesdal, G., Lázaro-Lobo, A., & Jiménez-Alfaro, B. (2024). Classification and Characterization of Anthropogenic Plant Communities in the Northwestern Iberian Peninsula. Applied Vegetation Science, 28(1), e70010. https://doi.org/10.1111/avsc.70010
• Jiménez-Alfaro, B., González Le Barbier J., Carlón L., Álvarez Martínez JM, Espinosa del Alba, C., Fernández-Pascual, E., González-García V., Lázaro-Lobo A, Mendieta-Leiva, Roces Díaz JV (2025) Regionalization of European EUNIS habitat classification for effective ecosystem assessment. In prep.