[tdwg-tapir] Abundance data

Tim Robertson trobertson at gbif.org
Mon Dec 1 15:03:50 CET 2008


+1 vote
------------
+2 (total)


On 1 Dec 2008, at 14:59, Markus Döring (GBIF) wrote:

> As the average TDWG mailing list is not exactly overloaded with  
> posts, how about consolidating TDWG's mailinglists into just 3?
> An announcement list for TDWG business (tdwg+process), a technical  
> one (TAG,GUID+TAPIR) and just a single content one.
> This would probably also help to avoid duplication of efforts and to  
> produce more consistent results across the subgroups.
>
> Just an idea.
> Markus
>
> http://lists.tdwg.org/mailman/listinfo
>
>
>
>
>
> On Dec 1, 2008, at 13:29, Holetschek, Jörg wrote:
>
>> Tomas,
>>
>> there's a wiki you might find interesting: http://wiki.tdwg.org/twiki/bin/view/
>> But as far as I know, this is the only mailing list alive for  
>> discussions like that...
>>
>> Jörg
>> -----Ursprüngliche Nachricht-----
>> Von: bar tomas [mailto:bartomas at gmail.com]
>> Gesendet: Montag, 1. Dezember 2008 13:13
>> An: Holetschek, Jörg
>> Betreff: Re: [tdwg-tapir] Abundance data
>>
>> Thanks for all your help.
>> One last question: is there a mailing list for specifically  
>> discussing conceptual aspects of Darwin Core, ABCD, etc (I haven't  
>> been able to find one) or is Tapir mailing list for that purpose?
>> Thanks
>> T. Bar
>>
>> On Mon, Dec 1, 2008 at 10:01 AM, Holetschek, Jörg <j.holetschek at bgbm.org 
>> > wrote:
>> Dear Thomas,
>>
>> the ABCD schema can handle such unbounded data - but the only TAPIR  
>> provider software that supports ABCD (pyWrapper) is not quite bug  
>> free. So you'd have to use the BioCASe protcol - which is  
>> apparently not your intention.
>>
>> Cheers from Berlin,
>> Jörg
>>
>> -----Ursprüngliche Nachricht-----
>> Von: tdwg-tapir-bounces at lists.tdwg.org
>> [mailto:tdwg-tapir-bounces at lists.tdwg.org]Im Auftrag von Tim  
>> Robertson
>> (GBIF)
>> Gesendet: Sonntag, 30. November 2008 16:22
>> An: bar tomas
>> Cc: tdwg-tapir at lists.tdwg.org
>> Betreff: Re: [tdwg-tapir] Abundance data
>>
>>
>> This is correct... largely it is used for transfer of detailed single
>> specimen records.
>>
>> That is not so say you could not define some schema that reuses  
>> sections
>> of DwC or the TDWG vocabularies - you probably would have to get into
>> custom provider software in that case (although maybe the current  
>> tools
>> would allow for it - Renato could give advice for TAPIRLink on this).
>>
>> Cheers
>>
>> Tim
>>
>>
>>
>> > Thanks a lot for the information.
>> >
>> > I suppose when the record is composed of multiple  specimens   
>> (whose
>> > number
>> > is recorded in ObservedIndividualCount) the individual attributes  
>> of each
>> > specimen (age, sex, maturity, etc) cannot be stored.
>> >
>> >
>> >
>> > Tomas Bar
>> >
>> >
>> > On Fri, Nov 28, 2008 at 4:14 PM, Tim Robertson  
>> <trobertson at gbif.org>
>> > wrote:
>> >
>> >> Hi T. Bar
>> >> You might consider the OBIS extensions for Darwin Core since you  
>> are
>> >> concerned with marine stuff.
>> >>
>> >> http://iobis.org/obis/obis.xsd
>> >>
>> >> SampleSize:  the size of the sample from which the
>> >> collection/observation was drawn.  It can be a volume (e.g. for a
>> >> phytoplankton sample), a linear distance (e.g. for a visual  
>> transect or
>> >> net haul), a surface area (e.g. for a benthic core), etc.  This  
>> field
>> >> must also include the units, e.g. 200 mfor a transect, or 0.25  
>> m^2 for a
>> >> benthic grab (use ^ to denote a superscript).  Note that when  
>> multiple
>> >> collections/observations are reported from the same physical  
>> sample, a
>> >> code identifying the sample can be placed in the Field_Number  
>> field to
>> >> allow all collections/observations from a single sample to be  
>> connected.
>> >>
>> >>
>> >> IndividualCount is a count of specimens (e.g. not a count of  
>> species).
>> >> If
>> >> you want to indicate multiple species, then you would have a  
>> record for
>> >> each
>> >> along with the identification and the count  of individuals of  
>> that
>> >> species.
>> >>
>> >> So in the OBIS schema you have:
>> >>
>> >> ObservedIndividualCount: The number of individuals (abundance)  
>> found in
>> >> a collection/record event.
>> >>
>> >>
>> >> Cheers,
>> >>
>> >> Tim
>> >>
>> >>
>> >>
>> >>   On 28 Nov 2008, at 17:05, bar tomas wrote:
>> >>
>> >>   Sorry if this question is misplaced in this discussion list,  
>> but I
>> >> haven't been able to find a mailing list on the conceptual  
>> aspects of
>> >> Darwin
>> >> Core.
>> >>
>> >>
>> >> I am interested to know if there are any recommendations on how to
>> >> represent abundance in Darwin Core. I have seen some datasets  
>> using
>> >> IndividualCount and SampleSize. For instance, for a fishing  
>> survey,
>> >> would
>> >> you use IndividualCount for the number of species in a catch, and
>> >> SampleSize
>> >> for the distance towed?
>> >>
>> >>
>> >> Thank you very much
>> >> _______________________________________________
>> >> tdwg-tapir mailing list
>> >> tdwg-tapir at lists.tdwg.org
>> >> http://lists.tdwg.org/mailman/listinfo/tdwg-tapir
>> >>
>> >>
>> >>
>> >
>>
>>
>> ____________________________________________________________
>> Tim Robertson
>> Systems Architect
>> Global Biodiversity Information Facility Secretariat  (GBIF)
>> Universitetsparken 15, 2100 Copenhagen Ø, Denmark
>> http://www.gbif.org
>> trobertson at gbif.org
>> Phone: +45 35 32 14 87 (Office)
>> Fax: +45 35 32 14 80
>> ____________________________________________________________
>>
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>
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