Wikidata:Property proposal/anthesis start

anthesis/flowering period start/end

Originally proposed at Wikidata:Property proposal/Natural science

   Not done

Description	time of the year when a plant normally starts flowering
Data type	Item
Example 1	Prunus cerasoides (Q150149)→January (Q108)
Example 2	Helleborus niger (Q147834)→winter (Q1311)
Example 3	Mentha pulegium (Q161235)→≥June 13 Mentha pulegium (Q161235)→≤June 21
Example 4	Mentha pulegium (Q161235)→June 17 (Q2672)
Wikidata project	WikiProject Plants (Q10823481)

In case we stick with the data model as proposed, there would have to be a complementary property "anthesis end"/flowering period end", of course (as implemented with work period (start) (P2031)/work period (end) (P2032), start of covered period (P7103)/end of covered period (P7104), start time (P580)/end time (P582), date of birth (P569)/date of death (P570), ...).  – The preceding unsigned comment was added by Cartoffel (talk • contribs) at 20:16, 18 February 2024 (UTC).

Motivation

The time period when flowering is expected to happen is an essential information when describing a plant species. It is given in countless books, lists and databases. It is often relevant when trying to identify a plant, when trying to work out (potential) ecological interactions, when planning a garden, for bee keeping and what not.

(@Juandev: asked for this back in 2018.)

Discussion

Tobias1984 (talk) Andy Mabbett (Pigsonthewing); Talk to Andy; * *Andy's edits TypingAway (talk) Daniel Mietchen (talk) Tinm (talk) Tubezlob Vincnet41 Netha Hussain Fractaler Tris T7 ^{TT me} Photocyte GoEThe (talk) Egon Willighagen

Notified participants of WikiProject Biology Regards, ZI Jony ^(Talk) 09:40, 29 February 2024 (UTC)

 Question Would we have to introduce a new format for specifying such fuzzy time periods? For now, I am leaning towards specifying (several) calendar weeks (this would mean "data type": "item" and creating ~53 new items), but ideally, we would be able to precisely pinpoint the boundaries of a 95 % confidence interval using two points in time that represent the statistical spread of actual measurement values (so: two dates for the start of the time period and two for the end, assuming availability of relevant studies that analyzed enough of samples). See example #3 for my clumsy attempt. (Read: "In 95 % of cases, anthesis begins between June 13 and June 21.")--Cartoffel (talk) 20:33, 18 February 2024 (UTC)

•  Comment This surely depends on location, how would you plan to model that? ArthurPSmith (talk) 11:43, 27 February 2024 (UTC)

  In case such precise data is available, I'd probably be largely happy with a valid in place (P3005) condition: e.g. Helleborus niger (Q147834)→January (Q108)valid in place (P3005)8 (Q99549220) or Helleborus niger (Q147834)→January (Q108)valid in place (P3005)Northern Hemisphere (Q39061). I don't immediately see a lot of cases where that would not be sufficient; do you?--Cartoffel (talk) 13:31, 15 March 2024 (UTC)

  I think that would have to be a required qualifier. Even for something as simple as your example, January would be completely wrong for the southern hemisphere. Meanwhile Cherry blossoms seem to have peak periods that vary from January to May (northern hemisphere), and obviously months like September in Australia. Unless I'm missing something here? ArthurPSmith (talk) 18:26, 15 March 2024 (UTC)

  @Cartoffel:, what is your opinion? will you withdraw this? Regards, ZI Jony ^(Talk) 07:01, 8 April 2024 (UTC)

•  Not done, no support for creation. Regards, ZI Jony ^(Talk) 13:41, 19 April 2024 (UTC)