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tdwg / tcs2

The TCS 2 Task Group will turn TCS into a form in which it can be maintained. The new version of TCS will be a vocabulary standard like Darwin Core and Audiovisual Core and will complement these other existing TDWG standards.
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concept:isCongruentWith #52

Open nielsklazenga opened 3 years ago

nielsklazenga commented 3 years ago

isCongruentWith (controlled term)
Label Is Congruent With
Definition The subject and object taxon concepts have a congruent taxonomic meaning or referential extension, i.e. there is no conflict between the concepts.
Comments

Mapping
TCS //TaxonRelationship[@type=”is congruent to”]
TDWG Ontology http://rs.tdwg.org/ontology/voc/TaxonConcept#isCongruentTo
RCC-5 Equal – EQ(x, y)
nfranz commented 3 years ago

"(essentially) identical" is in my view not a helpful set of adjectives in this context. A key case where "is congruent with" has to work is when there are two published taxonomic concepts, each (in the simplest case) referencing only one of two diagnostic or synapomorphic traits (angiosperms sec. A have flowers; angiosperms sec. B have triploid endosperm). The circumscriptions in these cases need not be essentially identical. They need to be coextensional; where extension is the entire set of the things to which the concept applies.