%0 Journal Article %K Biodiversity indicators %K Butterfly %K Citizen science data %K Functional principal component analysis %K Multi-species indices %K Procrustes analysis %B Ecological Indicators %D 2019 %P 156-165 %R https://doi.org/10.1016/j.ecolind.2019.04.070 %T Functional data analysis of multi-species abundance and occupancy data sets %U https://www.sciencedirect.com/science/article/pii/S1470160X19303164 %V 104