Biodiversity Information Standards (TDWG)

We are a non-profit organization and community dedicated to developing biodiversity information standards

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Historically known as the Taxonomic Databases Working Group, today's Biodiversity Information Standards (TDWG) is a not-for-profit, scientific and educational association formed to establish international collaboration among the creators, managers and users of biodiversity information and to promote the wider and more effective dissemination and sharing of knowledge about the world's heritage of biological organisms.

To achieve its goals, TDWG:

  • develops, ratifies and promotes standards and guidelines for the recording and exchange of data about organisms;
  • acts as a forum for discussing all aspects of biodiversity information management through meetings, online discussions, and publications.

See the About section to learn how TDWG operates and how you can participate. Active Interest Groups are described under Community.

Audubon Core proposals: public comment opens 15 Jan.

Public comment period opens 15 January for three term-change proposals.

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Our most popular standards

Darwin Core

Darwin Core is a standard maintained by the Darwin Core maintenance group. It includes a glossary of terms intended to facilitate the sharing of information about biological diversity by providing identifiers, labels, and definitions. Darwin Core is primarily based on taxa, their occurrence in nature as documented by observations, specimens, samples, and related information.

World Geographical Scheme for Recording Plant Distributions (WGSRPD)

WGSRPD provides an agreed system of geographical units at approximately "country" level and upwards for use in recording plant distributions. It allows adopting organizations to compare and exchange data with each other without loss of information due to incompatible geographical boundaries. The system offered covers the whole world and identifies units at four levels, firstly continental, secondly regional (or subcontinental), thirdly at what may be called "Botanical Country" level (which may often ignore purely political considerations), and fourthly at a slightly lower level called "Basic Recording Units" where political integrity is fully recognised.

Audubon Core Multimedia Resources Metadata Schema

The Audubon Core (AC) is a set of vocabularies designed to represent metadata for biodiversity multimedia resources and collections. These vocabularies aim to represent information that will help to determine whether a particular resource or collection will be fit for some particular biodiversity science application before acquiring the media. Among others, the vocabularies address such concerns as the management of the media and collections, descriptions of their content, their taxonomic, geographic, and temporal coverage, and the appropriate ways to retrieve, attribute and reproduce them.

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Audubon Core term change proposals

Audubon Core: open comment period for three term-change proposals begins 15 January. The Audubon Core Maintenance Group is opening a public comment period for three term-change proposals starting on 15 January 2022. The comment period will continue until 15 February …

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Status update on Controlled vocabulary translations

Controlled vocabulary translations are available for use! The multilingual label and definition data for controlled vocabularies from the November translations workshop are now available as CSV and JSON-LD. That includes: establishmentMeans pathway degreeOfEstablishment format subtype variant vocabularies Thanks to all …

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