# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/paul-jaccard
# Generated: 2026-08-13T19:32:02.798Z

schema: https://schema.org/Person
url: "https://fame.am/person/paul-jaccard"
name: "Paul Jaccard"
slug: "paul-jaccard"
description: "Paul Jaccard was a professor of botany and plant physiology at the ETH Zurich. He studied at the University of Lausanne and ETH Zurich. He continued studies in Paris with Gaston Bonnier.\nHe developed the Jaccard index of similarity and published it in 1901.\nHe also introduced the use of the species-to-genus ratio in biogeography. In the 1920s, Paul Jaccard engaged in a dispute with the Finnish botanist and phytogeographer Alvar Palmgren over the interpretation of species-to-genus ratio, as evidence of competitive exclusion or attributable to random sampling."
tagline: "Swiss botanist (1868-1944)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/ETH-BIB-Jaccard%2C_Paul_(1868-1944)-Portr_00152.tif?width=1200"
gender: "male"
country:
  name: "Switzerland"
  isoCode: "CH"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1868-11-18"
deathDate: "1944-05-09"
livingStatus: "DECEASED"
scores:
  popularity:           42.2
  momentum:             3.620689655172414
  historical:           6.743269333333334
  currentAttention:     0
  sourceConfidence:     39.99999999999999
  profileCompleteness:  70
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://vi.wikipedia.org/wiki/Paul_Jaccard"
    title: "Paul Jaccard"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Paul_Jaccard"
    title: "Paul Jaccard"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Paul_Jaccard"
    title: "Paul Jaccard"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Paul_Jaccard"
    title: "Paul Jaccard"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Paul_Jaccard"
    title: "Paul Jaccard"
    type:  "WIKIPEDIA"
  - url: "https://ru.wikipedia.org/wiki/%D0%96%D0%B0%D0%BA%D0%BA%D0%B0%D1%80%2C_%D0%9F%D0%BE%D0%BB%D1%8C"
    title: "Жаккар, Поль"
    type:  "WIKIPEDIA"
  - url: "https://uk.wikipedia.org/wiki/%D0%9F%D0%BE%D0%BB%D1%8C_%D0%96%D0%B0%D0%BA%D0%BA%D0%B0%D1%80"
    title: "Поль Жаккар"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q2743817"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump