Audubon Core (AC)
Metadata Vocabulary for
Biodiversity Multimedia
http://terms.tdwg.org/wiki/Audubon_Core_Term_List
http://terms.tdwg.org/wiki/Audubon_Core_Term_List
AC Controlled Vocabulary
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Some goals:
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Understand fitness for use before fetching media
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Document management of media and media
collections
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Describe taxonomic, geographic, and temporal
scope
Some lacks:

Specified integration with ecology vocabularies

Specified serializations (i.e. machine readable
forms)
http://terms.tdwg.org/wiki/Audubon_Core_Term_List
Two Kinds of Terms
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Representatation independent (e.g. where and
when taken, what taxa, etc. )
Representation dependent (e.g. file or service
details)
What follows are representative terms
“ac:” AC terms, “dwc:” DarwinCore, “dc:”
DublinCore
http://terms.tdwg.org/wiki/Audubon_Core_Term_List
From Where
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Many terms borrowed (all of dwc, much of dc, a
little from several others)
4 required terms
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dc:identifier (recommended)
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dc:type (e.g. StillImage)
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ac:metadataLanguage
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dc:rights
http://terms.tdwg.org/wiki/Audubon_Core_Term_List
Some useful AC curatorial terms
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dc:modified (when resource was modified)
xmp:MetadataDate (when ac record was
modified)
dcterms:available (when the resource became
or will become available)
ac:metadataProvider (who provided metadata)
http://terms.tdwg.org/wiki/Audubon_Core_Term_List
Some AC Coverage Terms
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dcterms:description (free form)
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ac:caption (brief caption for resource)
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dwc:locality (where taken)
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dwc:scientificName (of a taxon depicted)
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ac:taxonCoverage (highest depicted)
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dwc:vernacularName
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ac:subjectOrientation (w.r.t.acquisition device)
http://terms.tdwg.org/wiki/Audubon_Core_Term_List
Media Service
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ac:accessURI (identifier of a service for the
described media, often a URL; may be several)
and, some terms associated to the given
accessURI for a given media resource:
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dc:format (e.g. “jpeg”, “mp4”, …)
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ac:variant (e.g. “Thumbnail”, “Best Quality”)
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exif:PixelXDimension
http://terms.tdwg.org/wiki/Audubon_Core_Term_List
Camera Trap Federated Minimum
Data Standard
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Mapping to/from AC probably easy
When published, TDWG Image Interest Group
should propose mappings, applicability
statement, etc.
http://terms.tdwg.org/wiki/Audubon_Core_Term_List
Thanks To
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15 Contributors (See wiki)
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Gregor Hagedorn

Steve Baskauf

Gabriele Dröge

Anonymous Reviewers

Rob Stevenson (for including AC in this
symposium)
http://terms.tdwg.org/wiki/Audubon_Core_Term_List