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•Overview
•Installation
•Documentation
•Citation
•Contributing
•Acknowledgments
•References

The goal of the R packageforcis is to provide an interface to theFORCIS database onglobal foraminifera distribution (Chaabaneet al. 2023). This databaseincludes data on living planktonic foraminifera diversity anddistribution in the global oceans from 1910 until 2018 collected usingplankton tows, continuous plankton recorder, sediment traps and planktonpump from the global ocean.

This package has been developed for researchers interested in workingwith the FORCIS database, even without advanced R skills. It providesbasic functions to facilitate the handling of this large database,including functions to download, select, filter, homogenize, andvisualize the data. It also enables users to explore the spatialdistribution and temporal evolution of planktonic foraminifera.

You can install the development version fromGitHub with:

## Install < remotes > package (if not already installed) ----if (!requireNamespace("remotes",quietly=TRUE)) {  install.packages("remotes")}## Install dev version of < forcis > from GitHub ----remotes::install_github("ropensci/forcis")

N.B. Theforcis package depends on thesf package which requires somespatial system libraries (GDAL and PROJ). Please readthispage ifyou have any trouble to installforcis.

Finally you can attach the packageforcis with:

library("forcis")

forcis provides five vignettes to learn more about the package:

• theGetstartedvignette describes the core features of the package
• theDatabaseversionsvignette provides information on how to deal with the versioning ofthe database
• theSelect and filterdatavignette shows examples to handle the FORCIS data
• theDataconversionvignette describes the conversion functions available inforcis tocompute abundances, concentrations, and frequencies
• theDatavisualizationvignette describes the plotting functions available inforcis

Please cite this package as:

Casajus N, Chaabane S, de Garidel-Thoron T, Giraud X & Greco M (2025)forcis: An R package for accessing, handling and analysing the FORCISdatabase.Journal of Open Source Software, 10(114), 9217. DOI:10.21105/joss.09217.

You can also run:

citation("forcis")

All types of contributions are encouraged and valued. For moreinformation, check out ourContributorGuidelines.

Please note that this package is released with aContributor Code ofConduct. By contributing to thisproject, you agree to abide by its terms.

This package has been developed for theFRB-CESABworking groupFORCISthat aims to understand the importance of the main stressors such astemperature and ocean acidification that govern foraminifera speciesdistribution and calcification processes, with focus on present andnear-future ocean impacts.

We want to thanks Khalil Hammami(@khammami) for his valuable contributionto this package.

Chaabane S, De Garidel-Thoron T, Giraud X, Schiebel R, Beaugrand G,Brummer G-J, Casajus N, Greco M, Grigoratou M, Howa H, Jonkers L, KuceraM, Kuroyanagi A, Meilland J, Monteiro F, Mortyn G, Almogi-Labin A, AsahiH, Avnaim-Katav S, Bassinot F, Davis CV, Field DB, Hernández-Almeida I,Herut B, Hosie G, Howard W, Jentzen A, Johns DG, Keigwin L, Kitchener J,Kohfeld KE, Lessa DVO, Manno C, Marchant M, Ofstad S, Ortiz JD, Post A,Rigual-Hernandez A, Rillo MC, Robinson K, Sagawa T, Sierro F, TakahashiKT, Torfstein A, Venancio I, Yamasaki M & Ziveri P (2023) The FORCISdatabase: A global census of planktonic Foraminifera from ocean waters.Scientific Data, 10, 354. DOI:10.1038/s41597-023-02264-2.