[tdwg-humboldt] meeting this week

Wed Jul 12 10:25:51 UTC 2023

Hi folks,

This is the second week of three giving a georeferencing workshop that
surrounds the time of the Humboldt meeting, so I will not be able to attend
again. Sorry.

John

On Wed, Jul 12, 2023 at 5:45 AM Brenton, Peter (NCMI, Black Mountain) <
Peter.Brenton at csiro.au> wrote:

> Hi all,
>
>
>
> Sorry, I have been very late on doing my bit for this too. I am hoping to
> get something together before our meeting tonight though.
>
>
>
> Peter
>
>
>
> *From:* tdwg-humboldt <tdwg-humboldt-bounces at lists.tdwg.org> *On Behalf
> Of *ys628
> *Sent:* Wednesday, 12 July 2023 5:46 PM
> *To:* Humboldt Core TG <tdwg-humboldt at lists.tdwg.org>
> *Cc:* tuco at berkeley.edu; wmh6 at cornell.edu
> *Subject:* Re: [tdwg-humboldt] meeting this week
>
>
>
> Thank you so much Rob!
>
>
>
> 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). Hopefully, John can join and is able to provide some
> context.
>
>
>
> Thanks again and i hope to see you later today!
>
>
>
> Yanina V. Sica, PhD
>
> Lead Data Team
>
> Map of Life <https://mol.org/> | Center for Biodiversity and Global Change
> <https://bgc.yale.edu/>
>
> Yale University
>
> pronouns: she/her/hers
>
> If *you are receiving this email outside of your working hours, **I am
> not expecting you to read or respond*
> ------------------------------
>
> *From:* tdwg-humboldt <tdwg-humboldt-bounces at lists.tdwg.org> on behalf of
> Rob Stevenson <rdstevenson10 at gmail.com>
> *Sent:* Tuesday, July 11, 2023 10:06:18 PM
> *To:* Humboldt Core TG <tdwg-humboldt at lists.tdwg.org>
> *Cc:* tuco at berkeley.edu <tuco at berkeley.edu>; wmh6 at cornell.edu <
> wmh6 at cornell.edu>
> *Subject:* Re: [tdwg-humboldt] meeting this week
>
>
>
> Dear All,
>
> 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 -
>
> How to deal with the lowest level of the event hierarchy
>
>
>
> Below is the text but it is also at the bottom of our document here
>
>
> https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit
>
>
>
>
>
> 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.
>
>
>
> 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”.
>
>
>
> 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.
>
>
>
> A sampling unit, the finest measurement resolution of a survey,
> encompasses a variety of ways of looking for species.  It might include:
>
>
>
> A physical sample such as a leaf or a water sample containing molecules of
> DNA
>
> One or several sweeps of a net containing a collection of insects
>
> Camera trap – collection of images of mammals
>
> Quadrat  – estimating the percentage of space or numbers of space
> occupying organisms such as plants or clams
>
> Bird checklist – list of species of birds observed from a fixed-point
>
>
>
> 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.
>
>
>
>
>
>
>
>
>
>
>
> On Wed, Jul 5, 2023 at 8:08 AM Dmitry Schigel <dschigel at gbif.org> wrote:
>
> Stuck in a GBIF meeting, not joining today
>
> DS
>
>
>
> *From:* tdwg-humboldt <tdwg-humboldt-bounces at lists.tdwg.org> *On Behalf
> Of *John Wieczorek
> *Sent:* Tuesday, 4 July, 2023 21:30
> *To:* Humboldt Core TG <tdwg-humboldt at lists.tdwg.org>
> *Cc:* wmh6 at cornell.edu
> *Subject:* Re: [tdwg-humboldt] meeting this week
>
>
>
> Hi folks,
>
>
>
> 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.
>
>
>
> Cheers,
>
>
>
> John
>
>
>
> On Tue, Jul 4, 2023 at 4:27 PM ys628 <yanina.sica at yale.edu> wrote:
>
> Hi all,
>
>
>
> Lets discuss the Hierarchical Document
> <https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit>this
> week!
>
>
>
> 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.
>
>
>
> See you!
>
>
>
> Yani
>
>
> <https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit>
>
> Hierarchical Events in Humboldt Extension for ecological inventories
> <https://docs.google.com/document/d/1r_XMEgB7p7OI7a5Ouq6G9oa7LmQFPcFhZZCLD9gWOIE/edit>
>
> 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: http://www.tdwg.org/standards/450 This
> ...
>
> docs.google.com
>
>
>
>
>
> Yanina V. Sica, PhD
>
> Lead Data Team
>
> Map of Life <https://mol.org/> | Center for Biodiversity and Global Change
> <https://bgc.yale.edu/>
>
> Yale University
>
> pronouns: she/her/hers
>
> *If you are receiving this email outside of your working hours, I am not
> expecting you to read or respond.*
>
> _______________________________________________
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>
> _______________________________________________
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> tdwg-humboldt at lists.tdwg.org
> https://lists.tdwg.org/mailman/listinfo/tdwg-humboldt
>
>
>
>
> --
>
> Robert D Stevenson
> Associate Professor
>
> Department of Biology
> UMass Boston
>
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