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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Although abundance is not &#8220;evidence of an occurrence in nature&#8221; it is &#8220;information pertaining to evidence&#8221;, isn&#8217;t it?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Chuck<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> tdwg-content-bounces@lists.tdwg.org [mailto:tdwg-content-bounces@lists.tdwg.org] <b>On Behalf Of </b>Robert Guralnick<br><b>Sent:</b> Thursday, September 26, 2013 9:37 AM<br><b>To:</b> Donald Hobern [GBIF]<br><b>Cc:</b> TDWG Content Mailing List<br><b>Subject:</b> Re: [tdwg-content] Proposed new Darwin Core terms - abundance, abundanceAsPercent<o:p></o:p></span></p><p class=MsoNormal><o:p>&nbsp;</o:p></p><div><p class=MsoNormal><o:p>&nbsp;</o:p></p><div><p class=MsoNormal>&nbsp; I agree with Donald here regarding the need for Abundance, but am, to be honest, not quite I understand (or agree) with the logic of the proposal. &nbsp; Abundance is listed as a property of an occurrence, and I wonder if that make sense given the class definition &quot;The category of information pertaining to evidence of an occurrence in nature, in a collection, or in a dataset (specimen, observation, etc.)&quot; &nbsp;Is abundance &quot;evidence of an occurrence in nature&quot;. &nbsp;To me, abundance is a property of a survey and its associated methodology and is based on multiple occurrences that come from a sample and a definition of extent. &nbsp;<o:p></o:p></p></div><div><p class=MsoNormal><o:p>&nbsp;</o:p></p></div><div><p class=MsoNormal>&nbsp; It seems to me to be a bad fit to scrunch abundance into the occurrence class. &nbsp;I recognize that it might not quite fit anywhere in DwC yet. &nbsp;Wouldn't it be better to wait to see if materialSample is ratified as a class within the Darwin Core?<o:p></o:p></p></div><div><p class=MsoNormal><o:p>&nbsp;</o:p></p></div><div><p class=MsoNormal>Best, Rob<o:p></o:p></p></div><div><p class=MsoNormal><o:p>&nbsp;</o:p></p></div><div><p class=MsoNormal><o:p>&nbsp;</o:p></p></div><div><p class=MsoNormal>&nbsp;&nbsp;<o:p></o:p></p></div></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p>&nbsp;</o:p></p><div><p class=MsoNormal>On Thu, Sep 26, 2013 at 8:01 AM, Donald Hobern [GBIF] &lt;<a href="mailto:dhobern@gbif.org" target="_blank">dhobern@gbif.org</a>&gt; wrote:<o:p></o:p></p><p class=MsoNormal>Thanks, John.<br><br>You are correct. &nbsp;I think though that abundance is such a commonly needed<br>property that it would be a mistake not to make it work easily even in<br>Simple Darwin Core.<o:p></o:p></p><div><p class=MsoNormal><br>Donald<br><br>----------------------------------------------------------------------<br>Donald Hobern - GBIF Director - <a href="mailto:dhobern@gbif.org">dhobern@gbif.org</a><br>Global Biodiversity Information Facility <a href="http://www.gbif.org/" target="_blank">http://www.gbif.org/</a><br>GBIF Secretariat, Universitetsparken 15, DK-2100 Copenhagen , Denmark<br>Tel: <a href="tel:%2B45%203532%201471">+45 3532 1471</a> &nbsp;Mob: <a href="tel:%2B45%202875%201471">+45 2875 1471</a> &nbsp;Fax: <a href="tel:%2B45%202875%201480">+45 2875 1480</a><br>----------------------------------------------------------------------<br><br><br>-----Original Message-----<o:p></o:p></p></div><div><div><p class=MsoNormal>From: <a href="mailto:gtuco.btuco@gmail.com">gtuco.btuco@gmail.com</a> [mailto:<a href="mailto:gtuco.btuco@gmail.com">gtuco.btuco@gmail.com</a>] On Behalf Of John<br>Wieczorek<br>Sent: Thursday, September 26, 2013 3:48 PM<br>To: Donald Hobern [GBIF]<br>Cc: <a href="mailto:aaike.dewever@naturalsciences.be">aaike.dewever@naturalsciences.be</a>; TDWG Content Mailing List<br>Subject: Re: [tdwg-content] Proposed new Darwin Core terms - abundance,<br>abundanceAsPercent<br><br>Could every concept of abundance be captured in a combination of abundance,<br>abundanceUnit, abundanceMethod?<br><br>If so, is there justification for creating new terms at all if the concepts<br>can be captured in MeasurentsOrFacts<br>(<a href="http://rs.tdwg.org/dwc/terms/index.htm#measureindex" target="_blank">http://rs.tdwg.org/dwc/terms/index.htm#measureindex</a>), which have the<br>following properties?<br><br>measurementType<br>measurementValue<br>measurementAccuracy<br>measurementUnit<br>measurementDeterminedDate<br>measurementDeterminedBy<br>measurementMethod<br>measurementRemarks<br><br>The only drawback I can see is that with MeasurementOrFacts you could not<br>share the abunance information in Simple Darwin Core. To understand why, see<br><a href="http://rs.tdwg.org/dwc/terms/simple/index.htm#rules" target="_blank">http://rs.tdwg.org/dwc/terms/simple/index.htm#rules</a>.<br><br><br>On Thu, Sep 26, 2013 at 10:50 AM, Donald Hobern [GBIF] &lt;<a href="mailto:dhobern@gbif.org">dhobern@gbif.org</a>&gt;<br>wrote:<br>&gt; Thanks - I think I too have missed something. &nbsp;If we want to make<br>&gt; these terms usable, there needs to be a simple way to get numbers out<br>&gt; of records that can be compared with one another where sampling<br>&gt; methods allow such comparisons. &nbsp;The suggested plain text examples for<br>&gt; Abundance don't make this possible. &nbsp;Forcing normalisation into<br>&gt; percentages seems an unnecessary hurdle and risks encouraging the<br>&gt; impression that number of ducks on a reservoir is somehow comparable<br>&gt; with percentage dry mass, proportional expression of CO1 for a<br>&gt; particular species in an ecogenomics sample, or whatever.<br>&gt;<br>&gt; I would much rather we ensured we had a standard, preferred field<br>&gt; which the data publisher can populate directly with whatever number is<br>&gt; the most appropriate expression of the relative abundance in the<br>&gt; sample. &nbsp;That gives consumers a clear expectation of how to interpret and<br>handle it.<br>&gt;<br>&gt; Donald<br>&gt;<br>&gt; ----------------------------------------------------------------------<br>&gt; Donald Hobern - GBIF Director - <a href="mailto:dhobern@gbif.org">dhobern@gbif.org</a> Global Biodiversity<br>&gt; Information Facility <a href="http://www.gbif.org/" target="_blank">http://www.gbif.org/</a> GBIF Secretariat,<br>&gt; Universitetsparken 15, DK-2100 Copenhagen , Denmark<br>&gt; Tel: <a href="tel:%2B45%203532%201471">+45 3532 1471</a> &nbsp;Mob: <a href="tel:%2B45%202875%201471">+45 2875 1471</a> &nbsp;Fax: <a href="tel:%2B45%202875%201480">+45 2875 1480</a><br>&gt; ----------------------------------------------------------------------<br>&gt;<br>&gt;<br>&gt; -----Original Message-----<br>&gt; From: <a href="mailto:tdwg-content-bounces@lists.tdwg.org">tdwg-content-bounces@lists.tdwg.org</a><br>&gt; [mailto:<a href="mailto:tdwg-content-bounces@lists.tdwg.org">tdwg-content-bounces@lists.tdwg.org</a>] On Behalf Of Aaike De<br>&gt; Wever<br>&gt; Sent: Thursday, September 26, 2013 8:44 AM<br>&gt; To: <a href="mailto:tuco@berkeley.edu">tuco@berkeley.edu</a>; TDWG Content Mailing List<br>&gt; Subject: Re: [tdwg-content] Proposed new Darwin Core terms -<br>&gt; abundance, abundanceAsPercent<br>&gt;<br>&gt; Dear all,<br>&gt;<br>&gt; As somewhat of an outsider I have another question with regards to the<br>&gt; proposed terms abundance and abundanceAsPercent.<br>&gt;<br>&gt; Is there a specific reason for not adopting:<br>&gt; * the abundance field as a field to store only the value and<br>&gt; * a field abundanceUnit/abundanceType to specify whether the value is<br>&gt; in % of species, % of biovolume, % of biomass, individuals/l,<br>&gt; ind./m^2, ind/m^3, ind./sampling effort,...(instead of having a field<br>specific for %)?<br>&gt;<br>&gt; Maybe this has been discussed during the hackathon and I missed it in<br>&gt; the report?<br>&gt;<br>&gt; Thanks for considering this question.<br>&gt;<br>&gt; With best regards,<br>&gt; Aaike<br>&gt;<br>&gt; John Wieczorek wrote:<br>&gt;&gt; Dear all,<br>&gt;&gt;<br>&gt;&gt; GBIF has just published &quot;Meeting Report: GBIF hackathon-workshop on<br>&gt;&gt; Darwin Core and sample data (22-24 May 2013)&quot; at<br>&gt;&gt; <a href="http://www.gbif.org/orc/?doc_id=5424" target="_blank">http://www.gbif.org/orc/?doc_id=5424</a>. Now that this document is<br>&gt;&gt; available for public reference, I would like to formally open the<br>&gt;&gt; minimum 30-day comment period on two related new terms proposed<br>&gt;&gt; during the workshop and defined in the referenced document.<br>&gt;&gt;<br>&gt;&gt; The formal proposal would add the following new terms:<br>&gt;&gt;<br>&gt;&gt; Term Name: abundance<br>&gt;&gt; Identifier: <a href="http://rs.tdwg.org/dwc/terms/abundance" target="_blank">http://rs.tdwg.org/dwc/terms/abundance</a><br>&gt;&gt; Namespace: http:/<a href="http://rs.tdwg.org/dwc/terms/" target="_blank">rs.tdwg.org/dwc/terms/</a><br>&gt;&gt; Label: Abundance<br>&gt;&gt; Definition: The number of individuals of a taxon found in a sample.<br>&gt;&gt; This is typically expressed as number per unit of area or volume. In<br>&gt;&gt; the case of vegetation and colonial/encrusting species, percent cover<br>&gt;&gt; can be used.<br>&gt;&gt; Comment: Examples: &quot;4 per square meter&quot;, &quot;0.32 per cubic meter&quot;,<br>&gt;&gt; &quot;24%&quot;. For discussion see<br>&gt;&gt; <a href="http://code.google.com/p/darwincore/wiki/Occurrence" target="_blank">http://code.google.com/p/darwincore/wiki/Occurrence</a> (there will be no<br>&gt;&gt; further documentation here until the term is ratified) Type of Term:<br>&gt;&gt; <a href="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property" target="_blank">http://www.w3.org/1999/02/22-rdf-syntax-ns#Property</a><br>&gt;&gt; Refines:<br>&gt;&gt; Status: proposed<br>&gt;&gt; Date Issued: 2012-03-01<br>&gt;&gt; Date Modified: 2013-09-25<br>&gt;&gt; Has Domain:<br>&gt;&gt; Has Range:<br>&gt;&gt; Refines:<br>&gt;&gt; Version: abundance-2013-09-25<br>&gt;&gt; Replaces:<br>&gt;&gt; IsReplaceBy:<br>&gt;&gt; Class: <a href="http://rs.tdwg.org/dwc/terms/Occurrence" target="_blank">http://rs.tdwg.org/dwc/terms/Occurrence</a><br>&gt;&gt; ABCD 2.0.6: not in ABCD (someone please confirm or deny this)<br>&gt;&gt;<br>&gt;&gt; Term Name: abundanceAsPercent<br>&gt;&gt; Identifier: <a href="http://rs.tdwg.org/dwc/terms/abundanceAsPercent" target="_blank">http://rs.tdwg.org/dwc/terms/abundanceAsPercent</a><br>&gt;&gt; Namespace: http:/<a href="http://rs.tdwg.org/dwc/terms/" target="_blank">rs.tdwg.org/dwc/terms/</a><br>&gt;&gt; Label: Abundance as Percent<br>&gt;&gt; Definition: 100 times the number of individuals of a taxon found in a<br>&gt;&gt; sample divided by the total number of individuals of all taxa in the<br>&gt;&gt; sample.<br>&gt;&gt; Comment: Examples: &quot;2.4%&quot;. For discussion see<br>&gt;&gt; <a href="http://code.google.com/p/darwincore/wiki/Occurrence" target="_blank">http://code.google.com/p/darwincore/wiki/Occurrence</a> (there will be no<br>&gt;&gt; further documentation here until the term is ratified) Type of Term:<br>&gt;&gt; <a href="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property" target="_blank">http://www.w3.org/1999/02/22-rdf-syntax-ns#Property</a><br>&gt;&gt; Refines:<br>&gt;&gt; Status: proposed<br>&gt;&gt; Date Issued: 2012-08-01<br>&gt;&gt; Date Modified: 2013-09-25<br>&gt;&gt; Has Domain:<br>&gt;&gt; Has Range:<br>&gt;&gt; Refines:<br>&gt;&gt; Version: abundanceAsPercent-2013-09-25<br>&gt;&gt; Replaces:<br>&gt;&gt; IsReplaceBy:<br>&gt;&gt; Class: <a href="http://rs.tdwg.org/dwc/terms/Occurrence" target="_blank">http://rs.tdwg.org/dwc/terms/Occurrence</a><br>&gt;&gt; ABCD 2.0.6: not in ABCD (someone please confirm or deny this)<br>&gt;&gt;<br>&gt;&gt; The related issues in the Darwin Core issue tracker are<br>&gt;&gt; <a href="https://code.google.com/p/darwincore/issues/detail?id=142" target="_blank">https://code.google.com/p/darwincore/issues/detail?id=142</a><br>&gt;&gt; and<br>&gt;&gt; <a href="https://code.google.com/p/darwincore/issues/detail?id=187" target="_blank">https://code.google.com/p/darwincore/issues/detail?id=187</a><br>&gt;&gt;<br>&gt;&gt; If there are any objections to the changes proposed for these new<br>&gt;&gt; terms, or comments about their definitions, please respond to this<br>&gt;&gt; message. If there are no objections or if consensus can be reached on<br>&gt;&gt; any amendments put forward, the proposal will go before the Executive<br>&gt;&gt; Committee for authorization to put these additions into effect after<br>&gt;&gt; the public commentary period.<br>&gt;&gt;<br>&gt;&gt; Cheers,<br>&gt;&gt;<br>&gt;&gt; John<br>&gt;&gt; _______________________________________________<br>&gt;&gt; tdwg-content mailing list<br>&gt;&gt; <a href="mailto:tdwg-content@lists.tdwg.org">tdwg-content@lists.tdwg.org</a><br>&gt;&gt; <a href="http://lists.tdwg.org/mailman/listinfo/tdwg-content" target="_blank">http://lists.tdwg.org/mailman/listinfo/tdwg-content</a><br>&gt;<br>&gt; --<br>&gt; Aaike De Wever<br>&gt; BioFresh Science Officer<br>&gt; Freshwater Laboratory, Royal Belgian Institute of Natural Sciences<br>&gt; Vautierstraat 29, 1000 Brussels Belgium<br>&gt; tel.: <a href="tel:%2B32%280%292%20627%2043%2090">+32(0)2 627 43 90</a><br>&gt; mobile.: <a href="tel:%2B32%280%29486%2028%2005%2093">+32(0)486 28 05 93</a><br>&gt; email: &lt;<a href="mailto:aaike.dewever@naturalsciences.be">aaike.dewever@naturalsciences.be</a>&gt;<br>&gt; skype: aaikew<br>&gt; LinkedIn: &lt;<a href="http://be.linkedin.com/in/aaikedewever" target="_blank">http://be.linkedin.com/in/aaikedewever</a>&gt;<br>&gt; BioFresh: &lt;<a href="http://www.freshwaterbiodiversity.eu/" target="_blank">http://www.freshwaterbiodiversity.eu/</a>&gt; and<br>&gt; &lt;<a href="http://data.freshwaterbiodiversity.eu/" target="_blank">http://data.freshwaterbiodiversity.eu/</a>&gt;<br>&gt; Belgian Biodiversity Platform: &lt;<a href="http://www.biodiversity.be" target="_blank">http://www.biodiversity.be</a>&gt;<br>&gt; _______________________________________________<br>&gt; tdwg-content mailing list<br>&gt; <a href="mailto:tdwg-content@lists.tdwg.org">tdwg-content@lists.tdwg.org</a><br>&gt; <a href="http://lists.tdwg.org/mailman/listinfo/tdwg-content" target="_blank">http://lists.tdwg.org/mailman/listinfo/tdwg-content</a><br>&gt;<br>&gt;<br><br><br>_______________________________________________<br>tdwg-content mailing list<br><a href="mailto:tdwg-content@lists.tdwg.org">tdwg-content@lists.tdwg.org</a><br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