authority: geo-bon
slug: species-abundance
name: Species abundance
domain: biodiversity
subdomain: species-populations
authority_id: geo-bon:species-abundance
external_ids:
  nvs_uri: null
  cf_standard_name: null
  iadopt_concepts:
    property: null
    entity: null
  dwc_terms:
    - dwc:scientificName
    - dwc:taxonID
    - dwc:individualCount
    - dwc:organismQuantity
    - dwc:organismQuantityType
    - dwc:samplingProtocol
    - dwc:eventDate
canonical_units: count
description: |
  Number of individuals (or estimated density) of a species in a defined area
  over time. Underpins the Living Planet Index, BioTIME time-series, and the
  population-trend signals required by TNFD, EU Nature Restoration Regulation,
  and CSRD E4 disclosures.
theme: biodiversity
demos: []
status: stub
sources:
  - https://geobon.org/ebvs/what-are-ebvs/
  - https://geobon.org/ebvs/species-populations/
  - Pereira et al. 2013, Science 339, 277-278 (doi:10.1126/science.1229931)
  - Dornelas et al. 2018, Global Ecology and Biogeography 27, 760-786 (BioTIME)