OpenBiodiv-O is an ontology that links the publishing domain with the biodiversity domain. Major resource types covered by each of the ontology families are given in the box below the Venn diagram. Each of them is present in the OpenBiodiv-O ontology as a class. Important resources from the publishing domain are listed in the left-most column and from biodiversity informatics in the right-most column. The middle one covers important OpenBiodiv-O resources.