Biodiversity Information Standards (TDWG)

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

Image by Jennifer Latuperisa-Andresen

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.

TDWG 2023 in Hobart, TAS, Australia. Save the date!

TDWG 2023 will be held in Hobart, Tasmania, Australia, 9-13 October.

More info coming soon

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 -- Controlled Vocabularies for Views

Public comment opened for subjectPart and subjectOrientation controlled vocabularies. The Audubon Core Maintenance Group has opened public comment on the proposal to add two vocabularies to the Audubon Core Standard. These vocabularies provide controlled values for the existing terms subjectPart …

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Interest and Task Group Working Sessions

Working sessions for TDWG interest and task groups will meet 7-10 November. Help shape the standards that enable biodiversity information to be assembled into knowledge. Work with your colleagues in TDWG interest and task groups to create and maintain standards …

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