Global maps of the Ocean microbiome: Species richness of three taxonomic groups of autotrophs, and eleven taxonomic groups of heterotrophs in surface waters, available as monthly climatologies projected under contemporary (2012-2031) and future (2081-210…

This collection of global maps provides functional group-level global monthly fields of species richness (estimated through the sum of species-level HSI) for the contemporary and future time periods (i.e., folder labelled ‘Groups_species_richness_Benedettietal.2021’). There are two NetCDF files per functional group, one for each time period: contemporary (2012-2031) and future (2081-2100). Each NetCDF file records the monthly: minimum (Min), maximum (Max), mean, median and the standard deviation (Stdev) of the species richness estimated for 14 different plankton functional groups (Amphipoda, Appendicularia, Calanoida, Chaetognatha, Coccolithophores, Diatoms, Dinoflagellates, Euphausiids, Foraminifera, Jellyfish, Oithonida, Poecilostomatoida, Pteropoda and Thaliacea). For each functional group, species richness was estimated as the sum of the HSI predicted for the species composing that functional group. The species distribution models used to generate the maps relied on background data were based on a “group-specific target group approach”. Projections were made using an ensemble of five Earth System Models from the MAREMIP project: the Community Earth System Model version 1 (CESM1, POP-BEC), the Geophysical Fluid Dynamics Laboratory Earth System Model with Modular Ocean Model version 4 (GFDL-ESM2M; MOM-TOPAZ), the Institut Pierre Simon Laplace Climate Model version 5A-LR (IPSL-CM5A-LR; NEMO-PISCES), the Centre National de Recherches Météorologiques Climate Model version 5 (CNRM- CM5; NEMO-PISCES) and the Model for Interdisciplinary Research on Climate version 5 (MIROC5; MRI.COM-MEM).