To cite package ‘bioregion’ in publications use:

  Lenormand M, Leroy B, Denelle P (2024). _bioregion: Comparison of
  Bioregionalisation Methods_. R package version 1.1.1-1,
  <https://CRAN.R-project.org/package=bioregion>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {bioregion: Comparison of Bioregionalisation Methods},
    author = {Maxime Lenormand and Boris Leroy and Pierre Denelle},
    year = {2024},
    note = {R package version 1.1.1-1},
    url = {https://CRAN.R-project.org/package=bioregion},
  }