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Lars Willighagen

@larsgw.mastodon.social.ap.brid.gy

Studying ecology, biodiversity, taxonomy. PhD candidate @Radboud_uni. Interested in bibliographic data (@citationjs), digital humanities (#CDLI), statistics. 🌉 bridged from ⁂ mastodon.social/@larsgw, follow @ap.brid.gy to interact

Posts Replies Media

Lars Willighagen @larsgw.mastodon.social.ap.brid.gy · 18/10/2026

Where could I find the API reference with the full list of fields? @OpenAlex help.openalex.org/api/filtering/#av…

Available filters by entity
Each entity type has its own set of filterable fields. See the API reference for complete filter lists:
Entity: Work
Filters: publication_year , type, open_access.is oa, author.id, institutions.id,
orks cited_by_count , doi, has_abstract, study_designs.id and ~150 more

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Lars Willighagen @larsgw.mastodon.social.ap.brid.gy · 11/10/2026

@egonw they have a SynthID watermark :/

Screenshot of the OpenAI SynthID watermark checker, with Dutch text: "Gegenereerd met OpenAI-tools. Deze content is gegenereerd met OpenAI-tools. De onderstaande signalen geven ondersteunend bewijs voor dit resultaat." This is followed by a picture of two antlered deers sitting in the shadows of two haybales, resembling snails. More Dutch text: "SynthID gedetecteerd. We hebben een SynthID-watermerk gevonden dat afkomstig is van OpenAI." "Inhoudsgegevens niet gevonden. We hebben geen vertrouwd C2PA-manifest gevonden dat afkomstig is van OpenAI."

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Lars Willighagen @larsgw.mastodon.social.ap.brid.gy · 27/09/2026

Cooool, apparently the English 'gas' originates from Dutch, first attested in 1648 en.wiktionary.org/wiki/gas#English

English
Etymology 1
Borrowed from Dutch gas, coined by chemist Jan Baptist van Helmont in Ortus Medicinae. Derived from Ancient Greek χάος (kháos, “chasm, void, empty space”); perhaps also inspired by geest (“breath, vapour, spirit”). Doublet of chaos. First attested in 1648.

Noun
gas (countable and uncountable, plural gases or gasses)

(uncountable, physical chemistry) Matter in an intermediate state between liquid and plasma that can be contained only if it is fully surrounded by a solid (or in a bubble of liquid, or held together by gravitational pull); it can condense into a liquid, or can (rarely) become a solid directly by deposition.
Synonyms: vapor, vapour
"A lot of gas had escaped from the cylinder"

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Lars Willighagen @larsgw.mastodon.social.ap.brid.gy · 18/05/2026

Very niche taxonomy pet peeve: authors who don't distinguish between the author citation associated with a name, and citations of publications where a name is used. How are readers meant to tell which of these names are misapplied and which are true synonyms?

Sigara nigrolineata (Fieber) 1848
Syn. : Corisa nigrolineata Fieber. Bull. S. Nat. Mosc., 2, 1848, p. 527.
— fabricii Fieber. Sp. Cor., 2, 1851, p. 33.
C. pallidula J. Sahlberg, Not. Salls F. F. Fenn. Forh. 1870, p. 306.
Callicorixa fabricii Jaczewski. Ann. Zool. Mus. Pol. Hist. nat. TFL, 1924, p. 55., etc.

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Lars Willighagen @larsgw.mastodon.social.ap.brid.gy · 15/04/2026

What a guy en.wikipedia.org/wiki/George_Willis…

Screenshot of Wikipedia page for George Willis Kirkaldy: "George Willis Kirkaldy (1873 – February 2, 1910) was an English entomologist who specialised on Hemiptera. Amongst his generic names for insects are Ohchisme, Dolichisme, Elachisme, Florichisme, Isachisme, Marichisme, Nanichisme, Peggichisme, and Polychisme. The Greek suffix "-chisme" is pronounced "kiss-me" and Kirkaldy prefaced it with the names of the various women from alleged romantic conquests.[2] In 1912 a letter to the International Entomological Congress from Lord Walsingham sought to make these names invalid on the basis of their being non-classical in their derivation." To the right, an old photo.

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Lars Willighagen @larsgw.mastodon.social.ap.brid.gy · 17/09/2025

Ik wilde zeggen, Google Ngram Viewer heeft helaas geen corpus voor Nederlandse woorden, maar #DBNL wel! Lijkt erop dat "giftig" over het algemeen al een lange tijd meer werd gebruikt dan "vergiftig". www.dbnl.org/ngram-viewer

Graph of the occurrence of the words "vergiftig" (teal line) and "giftig" (orange line) from 1500 to present time. "giftig" is consistently used as much or more than "vergiftig", except from ca. 1939–1944.

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Lars Willighagen @larsgw.mastodon.social.ap.brid.gy · 20/08/2025

I always enjoy the banner photos that @gbif puts on their front page but today's is especially good

Web page with jumbo text "Free and open access to biodiversity data" on top of a banner photo showing a portrait of a standing, deep-orange mongoose staring into the camera.

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Lars Willighagen @larsgw.mastodon.social.ap.brid.gy · 17/03/2025

I would like to write a query to find, given a parent taxon, the closest child taxa with a specific identifier, such that the resulting set of identifiers is the smallest to cover all species of the parent taxon. I tried the following but it times out (and […] [Original post on mastodon.social]

SPARQL query: "SELECT * WHERE { BIND(wd:Q660475 AS ?taxon) . ?child wdt:P171+ ?taxon; wdt:P846 ?gbif; wdt:P225 ?name. FILTER NOT EXISTS { ?child wdt:P171+ [ wdt:P171+ ?taxon; wdt:P846 ?gbif ] } }"

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