Supplementary material 1 from: Dzhembekova N, Zlateva I, Rubino F, Belmonte M, Doncheva V, Popov I, Moncheva S (2024) Spatial distribution models and biodiversity of phytoplankton cysts in the Black Sea. Nature Conservation 55: 269-296. https://doi.org/10.3897/natureconservation.55.121181