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The Audubon Core Biological Multimedia Metadata Standard or profile is the end result of the Multimedia Resource Task Group (MRTG) of GBIF and TDWG. The page MRTG documents the earlier draft and working documents. The final version is provided and documented under - please see there for further information.

Information about submission as TDWG standard
MRTG Wiki Homepage
Current Schema Draft. This version is under internal review as part of the submission to TDWG.
Audubon Core Non normative document
MRTG Development History
MRTG Meeting Notes
MRTG Best Practices
XML Schema representation of Audubon Core
RDF representation of Audubon Core
MediaWiki Help

This is the front page for the work of the TDWG/GBIF Multimedia Resource Task Group.

Group Charter

MRTG is a joint task group of GBIF and TDWG. You can examine its Charter or just the charter Summary:

"The goal of this Task Group is to evaluate schemas and standards for collation, management and dissemination of multimedia resources relevant to biodiversity. Through propagation of such standards, the Task Group intends to bring about cultural change in ways that multimedia resources are currently created and managed. Another aim of the Task Group is to develop schemas that could support the collection of primary biodiversity data associated with multimedia artefacts."


Participation is welcome. You don't have to register for the wiki just to read it. If you wish to participate in the discussions here, please register at the Create Account link on Special:RequestAccount. If you are not a member of the Task Group, please be sure to identify your interests in the account creation page.

If you create new pages, please add the string


to the top of the page. This wiki template will force your page to be in the MRTG wiki Category to make it easier to find. It will also add some other MRTG discussion attributes as we might from time to time desire to apply globally to the MRTG discussions.

The MRTG pages

MRTG Implementations

Use of MRTG terms in RDF metadata at

Place here a wikilink to any page you make describing a MRTG Implementation.

Member Notes

Wiki Disiderata

  • Make the left panel toolbox show a link to this page, and one to the current normative schema, if and only if the displayed page is in Category:MRTG, which will happen whenever {{MRTG}} heads the page.
  • BreadCrumbs2 or similar extension


Thanks to Key To Nature project for hosting these discussions.