To cite the wdpar package in publications, please use:

Hanson JO (2022). “wdpar: Interface to the World Database on Protected Areas.” Journal of Open Source Software, 7, 4594. doi:10.21105/joss.04594.

UNEP-WCMC, IUCN (2026). Protected Planet: The World Database on Protected Areas (WDPA). https://www.protectedplanet.net/en.

UNEP-WCMC, IUCN (2026). Protected Planet: The world database on other effective area-based conservation measures. https://www.protectedplanet.net/en.

Please cite this package and the relevant databases used in publications. For package version, use "packageVersion('wdpar')"

Corresponding BibTeX entries:

  @Article{,
    title = {wdpar: Interface to the World Database on Protected
      Areas},
    author = {Jeffrey O Hanson},
    year = {2022},
    journal = {Journal of Open Source Software},
    volume = {7},
    pages = {4594},
    doi = {10.21105/joss.04594},
  }

  @Manual{,
    title = {Protected Planet: The World Database on Protected Areas
      (WDPA)},
    author = {{UNEP-WCMC} and {IUCN}},
    year = {2026},
    version = {[insert month/year of the version downloaded]},
    publisher = {UNEP-WCMC and IUCN},
    address = {Cambridge, UK},
    url = {https://www.protectedplanet.net/en},
  }

  @Manual{,
    title = {Protected Planet: The world database on other effective
      area-based conservation measures},
    author = {{UNEP-WCMC} and {IUCN}},
    year = {2026},
    version = {[insert month/year of the version downloaded]},
    publisher = {UNEP-WCMC and IUCN},
    address = {Cambridge, UK},
    url = {https://www.protectedplanet.net/en},
  }