Property talk:P6264

Is every person in the Harvard Index of botanists a Botanist?

Currently if you add a Harvard Index of Botanists ID to a wikidata object without an occupation value you'll get a value requirement constraint. I interpret this as having a Harvard Index of Botanists ID being an indication or a pointer towards an occupation value. It is indeed intuitive that all persons on this list would be botanists, however this is far from certain especially when looking at the past when the description and collection of plants was not limited to professional botanists or people who would have called themselves plant collectors or botanists. This is the case for example for Q12973 where it is clear the value botanist for occupation should not be the first choice. For persons where only a harvard index of botanists id is known just adding botanist as an occupation is premature. And having this as a requirement encourages this behavior.

Furthermore, if it is the case that everyone who has a Harvard Index of Botanists ID is a botanist, is the same no true for everyone with an IPNI id? Even if you have described a plant to science, it is has in the past not always been the case to be self identifying as a botanist.

I'd be interested to hear other opinions on this. --Deelthx (talk) 14:28, 27 August 2019 (UTC)

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Harvard Index of Botanists ID
numerical identifier for a person in the Harvard Index of Botanists

Associated item	Harvard University (Q13371), Harvard Index of Botanists (Q59611233)
Applicable "stated in" value	Harvard Index of Botanists (Q59611233)
Data type	External identifier
Domain	human (Q5)
Allowed values	[1-9]\d*
Example	Josephine Adelaide Clark (Q21508662) → 61668 Asa Gray (Q347356) → 176 Randolph B. Marcy (Q3418824) → 100
Source	http://kiki.huh.harvard.edu/databases/botanist_index.html
Formatter URL	https://kiki.huh.harvard.edu/databases/botanist_search.php?mode=details&id=$1
Tracking: usage	Category:Pages using Wikidata property P6264 (Q59826809)
Related to country	United States of America (Q30) (See 762 others)
See also	Harvard botanical journal ID (P4754), Zürich Herbaria collector ID (P10168), Burke Herbarium Image Collection contributor ID (P9674), CNSflora ID (P10219)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Map of people by place values: place of birth educated at work location residence place of death place of burial January 1st dates People with date of birth on January 1 People with date of death on January 1 People with both dates on January 1 Mix'n'match (Report) Database reports/Constraint violations/P6264 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 53,145 Main statement 40,426 76.1% of uses Qualifier 3 <0.1% of uses Reference 12,716 23.9% of uses
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Type “human (Q5)”: item must contain property “instance of (P31)” with classes “human (Q5)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Muséum national d'histoire naturelle (Q838691), B. A. Bennett Herbarium (Q113389025)
List of violations of this constraint: Database reports/Constraint violations/P6264#Type Q5, SPARQL

Single value: this property generally contains a single value. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6264#Single value, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6264#Unique value, SPARQL (every item), SPARQL (by value)

Format “[1-9]\d*”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P6264#Format, hourly updated report, SPARQL

Item “occupation (P106)”: Items with this property should also have “occupation (P106)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: B. A. Bennett Herbarium (Q113389025), Muséum national d'histoire naturelle (Q838691)
List of violations of this constraint: Database reports/Constraint violations/P6264#Item P106, search, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6264#Entity types

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6264#Scope, SPARQL