Markus Döring

@ThierryBourgoin I see your point and it makes a lot of sense. There are various ways to look at what the essence of a taxon is and exactly this is...

Linking the drawing from the Woods Hole CoL meeting April 2017 illustrating changing concepts (numbers) over time with types indicated by colored dots:  Original single species A.bus gets...

@ThierryBourgoin so you say all 163 Acacia species that have been moved to the genus Vachellia should be considered different taxa describing a different set of organisms? Identifications to `Acacia...

@ThierryBourgoin can you explain what you have in mind when the _concept is more restricted but still the same concept_? That sentence to me contradicts itself. If some specimens/organisms are...

Thanks @ThierryBourgoin, for identification purposes it is important that we capture the different opinions over time. In the terminology I propose here this means the _concept_ of which populations are...

I do understand your point about intension. The classification should be significant in characters that define the taxon. But in many cases these do not alter the unit of populations...

As in practice it is difficult to assess whether a change in characters has an actual effect on the size of the included populations it probably makes sense in some...

yes. All 3 are probably best dealt with as different identifiers if you need all of them. I am just not sure if we do have users that need all...

If there is no use case I don't think we should implement it. Keep things simple. It is not bad to refactor things in a few years, but to create...

indeed the order in authorship field is surprising. It is copied straight from the original source record which has the same oddity: https://api.gbif.org/v1/species/111210659