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<div style="">Thank you so <span>much Rob! </span></div>
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<div dir="ltr" style=""><span>I am still unsure if I will be able to join this week's meeting (I am attending a workshop). But it would be great if you can discuss Rob's additional text and some of the doubts we had on principle 3 (i added comments to the text). </span><span style="font-size: inherit;">Hopefully,
John can join and is able to provide some context.</span></div>
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<div dir="ltr" style=""><span style="font-size: inherit;">Thanks again and i hope to see you later today!<span></span></span></div>
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<div style="caret-color:rgb(225, 225, 225)"><span style="font-size: small; font-family: Arial, Helvetica, sans-serif; margin: 0px; line-height: 1.5; color: rgb(34, 34, 34); background-color: white;"><font color="#444444" size="1" style="">Yanina V. Sica, PhD<br>
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<font color="#444444" size="1" style="">Lead Data Team</font></div>
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<span style="font-size: x-small; margin: 0px; color: rgb(68, 68, 68);"><a href="https://mol.org/" data-auth="NotApplicable" title="https://mol.org/" style="margin: 0px;">Map of Life</a><span> </span>| <a href="https://bgc.yale.edu/" data-auth="NotApplicable" title="https://bgc.yale.edu/" style="margin: 0px;">Center
for Biodiversity and Global Change</a></span></div>
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<font color="#444444" size="1" style="">Yale University<br>
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<span style="caret-color:rgb(225, 225, 225)"><font color="#444444" size="1" style="font-family: Arial, Helvetica, sans-serif; line-height: 1.5; background-color: white;">pronouns: she/her/hers</font></span>
<div><span style="caret-color:rgb(225, 225, 225)"><font color="#444444" size="1" style="font-family: Arial, Helvetica, sans-serif; line-height: 1.5; background-color: white;"><span style="background-color: white; color: rgb(68, 68, 68);">If </span><span style="font-style: italic; font-size: 7.5pt; background-color: white; color: rgb(68, 68, 68);">you
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> tdwg-humboldt <tdwg-humboldt-bounces@lists.tdwg.org> on behalf of Rob Stevenson <rdstevenson10@gmail.com><br>
<b>Sent:</b> Tuesday, July 11, 2023 10:06:18 PM<br>
<b>To:</b> Humboldt Core TG <tdwg-humboldt@lists.tdwg.org><br>
<b>Cc:</b> tuco@berkeley.edu <tuco@berkeley.edu>; wmh6@cornell.edu <wmh6@cornell.edu><br>
<b>Subject:</b> Re: [tdwg-humboldt] meeting this week</font>
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<div dir="ltr">Dear All,
<div>I wrote up some ideas. It proved more difficult than I thought and I am not sure I captured the issue at the core of the discussion -</div>
<div>How to deal with the lowest level of the event hierarchy</div>
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<div>Below is the text but it is also at the bottom of our document here</div>
<div><a href="https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit" originalsrc="https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit" shash="g5d+hp3jBxIByK+Iad51esUsWinseYdDMKwMBbrANA1hJtGo2qZTY6x1SWLHxI1ugf70LQAH2jpuaLKw+psmgyAjSu5zg3ZIPhvbTV60H4cHLVBmax9iTyyZrwoxlAY/onZX0m4EVebEkrwLQO0zt15+3Fl9QC9ZJzJYK1ht8HI=">https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit</a><br>
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Currently the vast majority of records in the GBIF archive contain an observation of one or more individuals of a single taxon. Many additional fields in the record, based on the Darwin Core, provide context for the observation including the observation type,
the time and place of observation, the observer, etc. At the present time, however, the metadata do not provide context about whether or not an observation is part of a systematic set of observations, herein called a survey. A survey is an approach based
on the idea of statistical sampling, whereby an observer is unable to measure an entire population but instead focuses on a subset of the population to make inferences about the entire population.</p>
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The added scientific value of the survey framework, over just a collection of unrelate observations indicating present only, is that a scientist can make inferences about how common or rare a taxon might be (its status) and over time, measure trends. The basic
idea of a survey is intuitive: the more you look, the more you will find. In the fisheries literature this idea is called “catch per unit effort”.</p>
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The goal of the Humboldt extension is to accurately describe a survey and its often hierarchical nature. Whereas an observation record is characterized by general sense of the observation approach (Basis of Record), a time and a location, a survey has a much
more detailed description of the observation technique(s), and also includes the number of sampling units employed, a time or time interval (start time and duration), and a measure of the spatial extent over which the survey was conducted.
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A sampling unit, the finest measurement resolution of a survey, encompasses a variety of ways of looking for species. It might include:
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A physical sample such as a leaf or a water sample containing molecules of DNA</p>
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One or several sweeps of a net containing a collection of insects</p>
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Camera trap – collection of images of mammals</p>
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Quadrat – estimating the percentage of space or numbers of space occupying organisms such as plants or clams</p>
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Bird checklist – list of species of birds observed from a fixed-point </p>
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Special considerations arise at the sampling unit level. First a measurement can detect no individuals or space occupied. In these cases the data need to reflect this fact with recording 0 for the observation. Second a measurement might be more than just a
number or percentage. It might a be compound structure that includes the flowering stage of each plant in a quadrat or the length and body mass of each insect in the sweep net sample or the location of each bird along a transect. </p>
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<div dir="ltr" class="x_gmail_attr">On Wed, Jul 5, 2023 at 8:08 AM Dmitry Schigel <<a href="mailto:dschigel@gbif.org">dschigel@gbif.org</a>> wrote:<br>
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<p class="x_MsoNormal">Stuck in a GBIF meeting, not joining today<u></u><u></u></p>
<p class="x_MsoNormal">DS<u></u><u></u></p>
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<p class="x_MsoNormal"><b>From:</b> tdwg-humboldt <<a href="mailto:tdwg-humboldt-bounces@lists.tdwg.org" target="_blank">tdwg-humboldt-bounces@lists.tdwg.org</a>>
<b>On Behalf Of </b>John Wieczorek<br>
<b>Sent:</b> Tuesday, 4 July, 2023 21:30<br>
<b>To:</b> Humboldt Core TG <<a href="mailto:tdwg-humboldt@lists.tdwg.org" target="_blank">tdwg-humboldt@lists.tdwg.org</a>><br>
<b>Cc:</b> <a href="mailto:wmh6@cornell.edu" target="_blank">wmh6@cornell.edu</a><br>
<b>Subject:</b> Re: [tdwg-humboldt] meeting this week<u></u><u></u></p>
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<p class="x_MsoNormal">Hi folks,<u></u><u></u></p>
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<p class="x_MsoNormal">I am giving the second module of a course on georeferencing tomorrow throughout the time of the Task Group call. I haven't mastered the two places at once thing, unfortunately.<u></u><u></u></p>
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<p class="x_MsoNormal">Cheers,<u></u><u></u></p>
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<p class="x_MsoNormal">John<u></u><u></u></p>
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<p class="x_MsoNormal">On Tue, Jul 4, 2023 at 4:27 PM ys628 <<a href="mailto:yanina.sica@yale.edu" target="_blank">yanina.sica@yale.edu</a>> wrote:<u></u><u></u></p>
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<p class="x_MsoNormal"><span style="font-size:12pt; color:black">Hi all,<u></u><u></u></span></p>
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<p class="x_MsoNormal"><span style="font-size:12pt; color:black">Lets discuss the<a href="https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit" originalsrc="https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit" shash="g5d+hp3jBxIByK+Iad51esUsWinseYdDMKwMBbrANA1hJtGo2qZTY6x1SWLHxI1ugf70LQAH2jpuaLKw+psmgyAjSu5zg3ZIPhvbTV60H4cHLVBmax9iTyyZrwoxlAY/onZX0m4EVebEkrwLQO0zt15+3Fl9QC9ZJzJYK1ht8HI=" title="https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit" target="_blank">
Hierarchical Document </a>this week!<u></u><u></u></span></p>
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<p class="x_MsoNormal"><span style="font-size:12pt; color:black">With the TDWG 2023 rush, people might not have had time to review or work on it. If that is the case, we can have a rather short meeting to agree on the next steps.<u></u><u></u></span></p>
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<p class="x_MsoNormal"><span style="font-size:12pt; color:black"><u></u> <u></u></span></p>
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<p class="x_MsoNormal"><span style="font-size:12pt; color:black">See you!<u></u><u></u></span></p>
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<p class="x_MsoNormal"><span style="font-size:12pt; color:black">Yani<u></u><u></u></span></p>
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<p class="x_MsoNormal"><a href="https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit" originalsrc="https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit" shash="g5d+hp3jBxIByK+Iad51esUsWinseYdDMKwMBbrANA1hJtGo2qZTY6x1SWLHxI1ugf70LQAH2jpuaLKw+psmgyAjSu5zg3ZIPhvbTV60H4cHLVBmax9iTyyZrwoxlAY/onZX0m4EVebEkrwLQO0zt15+3Fl9QC9ZJzJYK1ht8HI=" target="_blank"><span style="text-decoration:none"><img border="0" width="240" height="126" id="x_m_-5711228756550278214_x0000_i1025" src="https://lh3.googleusercontent.com/docs/ADP-6oHMdd4mw25hw7lvSXn4ZCiwspb9cc28UTsyFyihNFS6S59uu9rmVwTYgSg5aGvPEZyQo0fqEladdZ4o63Oh0mCa2zF5ZABb59fPXQzqpB8n=w1200-h630-p" style="width:2.5in; height:1.3166in"></span></a><u></u><u></u></p>
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<p class="x_MsoNormal"><span style="font-size:16pt; font-family:"Segoe UI Light",sans-serif"><a href="https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit" originalsrc="https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit" shash="g5d+hp3jBxIByK+Iad51esUsWinseYdDMKwMBbrANA1hJtGo2qZTY6x1SWLHxI1ugf70LQAH2jpuaLKw+psmgyAjSu5zg3ZIPhvbTV60H4cHLVBmax9iTyyZrwoxlAY/onZX0m4EVebEkrwLQO0zt15+3Fl9QC9ZJzJYK1ht8HI=" target="_blank"><span style="text-decoration:none">Hierarchical
Events in Humboldt Extension for ecological inventories</span></a><u></u><u></u></span></p>
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<p class="x_MsoNormal"><span style="font-size:10.5pt; font-family:"Segoe UI",sans-serif; color:rgb(102,102,102)">Properties of hierarchical Events in Humboldt Extension for ecological inventories Title: Properties of hierarchical Events in Humboldt Extension
for ecological inventories Date version issued: 2023-xx-xx Date created: 2023-xx-xx Part of TDWG Standard:
<a href="http://www.tdwg.org/standards/450" originalsrc="http://www.tdwg.org/standards/450" shash="a562JEHf4HxUGUDr8Y+JptlKg3hcdC7l0kLxnywXmHK8nM7jvHmMPPti5bSsj3IyLr7SMm0mnRyjxvBMiAajIjatr2S2f65OoeCzuPvQI4Y66cQsVXMD0DN+JPbowdFnwMK4lOz2J81GcGFkwdLTe0VqhPiOqY5lVqH2lxcRWLA=" target="_blank">
http://www.tdwg.org/standards/450</a> This ...<u></u><u></u></span></p>
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<p class="x_MsoNormal"><span style="font-size:10.5pt; font-family:"Segoe UI",sans-serif; color:rgb(166,166,166)"><a href="http://docs.google.com/" originalsrc="http://docs.google.com/" shash="YGK3n02D+WLpuoHCIC8dEBh6biA2QWZ2mg69olfpJm3oahzbE9W6/P+56e4pS7FwbM8irkOM3H7XM4xXJLl++wqrQQ+O1DXo2GGTVDKh+v+fYOg/5MLxTzgR8uvUV1QtF82pba9JVWwRpzR3FMczhpkkR0RCs5sCGUMyEL8VLIQ=" target="_blank">docs.google.com</a><u></u><u></u></span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:7.5pt; font-family:Arial,sans-serif; color:rgb(68,68,68); background:white">Yanina V. Sica, PhD</span><span style="font-size:11.5pt; color:rgb(32,31,30)"><u></u><u></u></span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:7.5pt; font-family:Arial,sans-serif; color:rgb(68,68,68)">Lead Data Team</span><span style="font-size:12pt; font-family:Arial,sans-serif; color:rgb(34,34,34)"><u></u><u></u></span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:10pt; font-family:Arial,sans-serif; color:rgb(68,68,68)"><a href="https://mol.org/" originalsrc="https://mol.org/" shash="GTfrPd8l/xwuP9RjGjG4OAqXJ7FKH2bdWnSos8zR4RIIBGk0r0i6V91w2o1teGUql9ZlY0Un2dLUEC3IxD093fmNAc/NEj5Su9EEaWKMRITVNl7bQcLH9f32M5VxwkR/JlBLVMY3NXMpoHqztZ64f24t6uujIkwU6dhycRrRiUU=" title="https://mol.org/" target="_blank">Map
of Life</a> | <a href="https://bgc.yale.edu/" title="https://bgc.yale.edu/" target="_blank">Center for Biodiversity and Global Change</a></span><span style="font-size:12pt; font-family:Arial,sans-serif; color:rgb(34,34,34)"><u></u><u></u></span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:7.5pt; font-family:Arial,sans-serif; color:rgb(68,68,68)">Yale University</span><span style="font-size:12pt; font-family:Arial,sans-serif; color:rgb(34,34,34)"><u></u><u></u></span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:7.5pt; font-family:Arial,sans-serif; color:rgb(68,68,68); background:white">pronouns: she/her/hers</span><span style="font-size:11.5pt; color:rgb(32,31,30)"><u></u><u></u></span></p>
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<p class="x_MsoNormal"><i><span style="font-size:7.5pt; font-family:Arial,sans-serif; color:rgb(68,68,68); background:white">If you are receiving this email outside of your working hours, I am not expecting you to read or respond.</span></i><span style="font-size:12pt; color:black"><u></u><u></u></span></p>
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<span class="x_gmail_signature_prefix">-- </span><br>
<div dir="ltr" class="x_gmail_signature">
<div dir="ltr">Robert D Stevenson<br>
Associate Professor
<div>Department of Biology<br>
UMass Boston</div>
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