Thanks for the information, Hilmar.  I don't have curl installed on my machine at work, so I used http://linkeddata.informatik.hu-berlin.de/uridbg/ which I have previously found to reliably show me what happens when I dereference a URI with Accept-Header application/rdf+xml  When I did it for http://purl.obolibrary.org/obo/ENVO_00002036 , I got:

HTTP/1.1 302 Moved Temporarily
http://www.berkeleybop.org/ontologies/ENVO_00002036%20

Dereferencing http://www.berkeleybop.org/ontologies/ENVO_00002036%20 produced

HTTP/1.1 303 See Other
http://purl.obolibrary.org/obo/ENVO/about/ENVO_00002036

Dereferencing that gave:
HTTP/1.1 302 Moved Temporarily
http://www.berkeleybop.org/ontologies/ENVO/about/ENVO_00002036

Dereferencing that gave:
HTTP/1.1 302 Found
http://www.ontobee.org/browser/rdf.php?o=ENVO%26iri=http://purl.obolibrary.org/obo/ENVO_00002036

Dereferencing that gave:
HTTP/1.1 200 OK
The RDF file... ! 

That didn't happen last time I tried it, so I suppose I did something wrong that time.  4 redirects seems odd but I guess in the end it does work.  My bad...

Steve


Hilmar Lapp wrote:
Steve,

I don't know which URLs you're specifically referring to and what you're doing to resolve them, but the ENVO term URIs work perfectly fine for me.

For example, the following curl command returns an OWL document with the term's class definition:

curl -L -H "Accept: application/rdf+xml" http://purl.obolibrary.org/obo/ENVO_00002036 

If you paste http://purl.obolibrary.org/obo/ENVO_00002036 into your browser's address bar, it gets resolved to an HTML page showing the class, its properties, and its axioms within the ENVO ontology in a form meant for human consumption.

As per the OBO ID convention [1], the ontology in OWL format is available from the following URL: http://purl.obolibrary.org/obo/envo.owl 

	-hilmar 

[1] http://www.obofoundry.org/id-policy.shtml

On Sep 25, 2013, at 5:04 PM, Steve Baskauf wrote:

  
I attempted to dereference the URIs below as RDF/XML to see how the 
terms were defined.  I kept getting redirected from one URL to another 
to another (I think about 4 or 5 times).  Finally I got to a URI with a 
response  that said "Ontology not specified or not supported".  Can 
somebody post a link to some document somewhere that shows how the ENVO 
terms are defined in the RDF of the ontology?  Plus, somebody should fix 
the dereferencing so that a client requesting an RDF/XML representation 
gets a 303 redirect to an RDF file that defines the terms.

Steve


John Wieczorek wrote:
    
Dear all,

GBIF has just published "Meeting Report: GBIF hackathon-workshop on
Darwin Core and sample data (22-24 May 2013)" at
http://www.gbif.org/orc/?doc_id=5424. Now that this document is
available for public reference, I would like to formally open the
minimum 30-day comment period on the new environmental terms proposed
during the workshop and defined in the referenced document.

The formal proposal would change the term habitat to align it with the
ENVO habitat term. The related issues in the Darwin Core issue tracker
is https://code.google.com/p/darwincore/issues/detail?id=178. The
Darwin Core term habitat would be redefined as follows:

Term Name: habitat
Identifier: http://purl.obolibrary.org/obo/ENVO_00002036
Namespace: http://purl.obolibrary.org/obo/
Label: Habitat
Definition: A spatial region having environmental qualities which may
sustain an organism or a community of organisms.
Comment: Examples: "freshwater habitat",
"http://purl.obolibrary.org/obo/ENVO_00002037". For discussion see
http://code.google.com/p/darwincore/wiki/Event (there will be no
further documentation here until the term is ratified)
Type of Term: http://www.w3.org/2000/01/rdf-schema#Class
Refines:
Status: proposed
Date Issued: 2008-11-19
Date Modified: 2013-09-25
Has Domain:
Has Range:
Refines:
Version: http://purl.obolibrary.org/obo/ENVO_00002036
Replaces: habitat-2009-04-24
IsReplaceBy:
Class: http://rs.tdwg.org/dwc/terms/Event
ABCD 2.0.6: not in ABCD (someone please confirm or deny this)

The formal proposal would add the following new terms for biome,
environmental feature, and environmental material:

Term Name: biome
Identifier: http://purl.obolibrary.org/obo/ENVO_00000428
Namespace: http://purl.obolibrary.org/obo/
Label: Biome
Definition: A major class of ecologically similar communities of
plants, animals, and other organisms. Biomes are defined based on
factors such as plant structures (such as trees, shrubs, and grasses),
leaf types (such as broadleaf and needleleaf), plant spacing (forest,
woodland, savanna), and other factors like climate. Unlike ecozones,
biomes are not defined by genetic, taxonomic, or historical
similarities. Biomes are often identified with particular patterns of
ecological succession and climax vegetation.
Comment: Examples: "flooded grassland biome",
"http://purl.obolibrary.org/obo/ENVO_01000195". For discussion see
http://code.google.com/p/darwincore/wiki/Event (there will be no
further documentation here until the term is ratified)
Type of Term: http://www.w3.org/2000/01/rdf-schema#Class
Refines:
Status: proposed
Date Issued: 2013-09-25
Date Modified: 2013-09-25
Has Domain:
Has Range:
Refines:
Version: http://purl.obolibrary.org/obo/ENVO_00000428
Replaces:
IsReplaceBy:
Class: http://rs.tdwg.org/dwc/terms/Event
ABCD 2.0.6: not in ABCD (someone please confirm or deny this)

Term Name: environmental feature
Identifier: http://purl.obolibrary.org/obo/ENVO_00002297
Namespace: http://purl.obolibrary.org/obo/
Label: Environmental Feature
Definition: A prominent or distinctive aspect, quality, or
characteristic of a biome.
Comment: Examples: "meadow",
"http://purl.obolibrary.org/obo/ENVO_00000108". For discussion see
http://code.google.com/p/darwincore/wiki/Event (there will be no
further documentation here until the term is ratified)
Type of Term: http://www.w3.org/2000/01/rdf-schema#Class
Refines:
Status: proposed
Date Issued: 2013-09-25
Date Modified: 2013-09-25
Has Domain:
Has Range:
Refines:
Version: http://purl.obolibrary.org/obo/ENVO_00002297
Replaces:
IsReplaceBy:
Class: http://rs.tdwg.org/dwc/terms/Event
ABCD 2.0.6: not in ABCD (someone please confirm or deny this)

Term Name: environmental material
Identifier: http://purl.obolibrary.org/obo/ENVO_00010483
Namespace: http://purl.obolibrary.org/obo/
Label: Environmental Material
Definition: Material in or on which organisms may live.
Comment: Examples: "scum",
"http://purl.obolibrary.org/obo/ENVO_00003930". For discussion see
http://code.google.com/p/darwincore/wiki/Event (there will be no
further documentation here until the term is ratified)
Type of Term: http://www.w3.org/2000/01/rdf-schema#Class
Refines:
Status: proposed
Date Issued: 2013-09-25
Date Modified: 2013-09-25
Has Domain:
Has Range:
Refines:
Version: http://purl.obolibrary.org/obo/ENVO_00010483
Replaces:
IsReplaceBy:
Class: http://rs.tdwg.org/dwc/terms/Event
ABCD 2.0.6: not in ABCD (someone please confirm or deny this)

The related issues in the Darwin Core issue tracker are
https://code.google.com/p/darwincore/issues/detail?id=189
https://code.google.com/p/darwincore/issues/detail?id=190
and
https://code.google.com/p/darwincore/issues/detail?id=191

If there are any objections to the changes proposed for these terms,
or comments about their definitions, please respond to this message.
If there are no objections or if consensus can be reached on any
amendments put forward, the proposal will go before the Executive
Committee for authorization to put these additions into effect after
the public commentary period.

Cheers,

John
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.


      
-- 
Steven J. Baskauf, Ph.D., Senior Lecturer
Vanderbilt University Dept. of Biological Sciences

postal mail address:
PMB 351634
Nashville, TN  37235-1634,  U.S.A.

delivery address:
2125 Stevenson Center
1161 21st Ave., S.
Nashville, TN 37235

office: 2128 Stevenson Center
phone: (615) 343-4582,  fax: (615) 322-4942
If you fax, please phone or email so that I will know to look for it.
http://bioimages.vanderbilt.edu


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-- 
Steven J. Baskauf, Ph.D., Senior Lecturer
Vanderbilt University Dept. of Biological Sciences

postal mail address:
PMB 351634
Nashville, TN  37235-1634,  U.S.A.

delivery address:
2125 Stevenson Center
1161 21st Ave., S.
Nashville, TN 37235

office: 2128 Stevenson Center
phone: (615) 343-4582,  fax: (615) 322-4942
If you fax, please phone or email so that I will know to look for it.
http://bioimages.vanderbilt.edu