@article{cima:mnhn-03082080, TITLE = {{A test of six simple indices to display the phenology of butterflies using a large multi-source database}}, AUTHOR = {Cima, Valentina and Fontaine, Beno{\^i}t and Witt{\'e}, Isabelle and Dupont, Pascal and Jeanmougin, Martin and Touroult, Julien}, URL = {https://mnhn.hal.science/mnhn-03082080}, JOURNAL = {{Ecological Indicators}}, PUBLISHER = {{Elsevier}}, VOLUME = {110}, PAGES = {105885}, YEAR = {2020}, MONTH = Mar, DOI = {10.1016/j.ecolind.2019.105885}, KEYWORDS = {opportunistic data ; citizen science ; Lepidoptera ; flight period ; seasonality ; bias correction ; sampling effort}, PDF = {https://mnhn.hal.science/mnhn-03082080/file/Cima%20et%20al_141019_final.pdf}, HAL_ID = {mnhn-03082080}, HAL_VERSION = {v1}, }