Taxacom: Minimalist revision of Mesochorus Gravenhorst, 1829
Stephen Thorpe
stephen_thorpe at yahoo.co.nz
Thu Aug 31 03:32:45 CDT 2023
Hi Marco,A very good point indeed. It highlights the practical ambiguities of the Code. I would say that it is completely justified to consider Sharkey et al.'s new species as having been conditionally proposed, but, unfortunately, one could also be justified in interpreting things differently. This leads to division in interpretation of the Code. My personal view on this situation is to simply chose a justifiable interpretation of the Code and run with it. Different people will run with different interpretations, but I can live with that.Cheers, Stephen
On Thursday, 31 August 2023 at 07:56:00 pm NZST, Marco Uliana <marco.uliana.1 at gmail.com> wrote:
Unless I missed some of your messages, I think the following perspective was not yet explored:
Are names introduced by Sharkey are compliant with the following?
ICZN 15.1. Conditional proposal
A new name or nomenclatural act proposed conditionally and published after 1960 is not thereby made available. [...]
Saying "few synonyms will be generated in our current effort which does not attempt to match his names with Costa Rican specimens" (other similar arguments are found in the text) isn't quite the same as saying
"we don't really know if any of these taxa is new*, or which ones are. But, based on statistics, we believe that at least some are new, and for those that will be verified new, this is how they should be called".
*note that 900 species of Mesochorus are described.
If not, what is the difference? i.e., isn't this a conditional proposal, similar to "A" being accepted as a "word" for adenine (and I agree with this)?Hopefully we don't expect conditional proposals to be introduced like "This is a conditional proposal of a new taxon", "We conditionally propose this name", or similar.
Marco
ᐧ
Il giorno gio 31 ago 2023 alle ore 01:17 Stephen Thorpe <stephen_thorpe at yahoo.co.nz> ha scritto:
I suggest that we take a step back and remind ourselves of the basics:
Diagnosis versus description:
A diagnosis is supposed to allow us to distinguish the new species from *known* relatives.
A description is supposed to also allow us to distinguish the new species from any yet to be discovered new species, which may also equally fit the diagnosis.
Example: Suppose genus Aus is currently monotypic. The species Aus bus has green legs. Then a new species is discovered, Auc cus, which has brown legs. The diagnosis for Aus cus need only mention that it has brown legs, but, further down the track, Aus dus might be discovered, also with brown legs, but with other differences. So, the description (but not the diagnosis) for Aus cus should try to mention all characters which might be relevant down the track.
Comparison with previously described species:
The proposal of a new species should exclude the possibility that it has already been described. This is not crucial, since we can just synonymise to fix it, but it is very bad taxonomic practice to disregard this guideline!
One potential problem with DNA only descriptions is that it fails to rule out whether the species has already been described morphologically, unless you can check the DNA of all previously described relatives. In practice, this is very hard to achieve.
One potential big advantage of DNA only descriptions is that it theoretically provides an easy full description for the species, to the point where you don't need diagnoses any more. You just compare the sequences and if the difference is above a certain threshold, then they are deemed to be different species. However, I'm not convinced that it really works out so neatly in practice and it does have some disadvantages. You've got the comparison problem to earlier morphologically described species that I mentioned above. You also need the facilities to do sequence analysis and it doesn't help for recognising species in the field in order to observe their natural history in a nondestructive way.
Stephen
On Thursday, 31 August 2023 at 12:09:41 am NZST, Carlos Alberto Martínez Muñoz via Taxacom <taxacom at lists.ku.edu> wrote:
I am glad that the logical fallacies in that paper are already being
pointed out. Thank you, Marco. You will definitely find more.
On Wed, Aug 30, 2023 at 2:02 PM Marco Uliana <marco.uliana.1 at gmail.com>
wrote:
> Dear all, I have been reading this group for a long time, but I think this
> is my first message.
> Greetings to everyone.
>
> The new Sharkey paper is available from here
> https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Frevistas.ucr.ac.cr%2Findex.php%2Frbt%2Fissue%2Fview%2F3352&data=05%7C01%7Ctaxacom%40lists.ku.edu%7C06a7602db9d341b54fc008dba9fcdb8b%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C638290675710767515%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=rCHbtUaHsECoqocS5E8Pm03EqE%2BzpFMZmsYSvIcPu4w%3D&reserved=0
>
> A decent proxy for their working method could perhaps be:
> *As it was really hard for us to cope with the 245 species of neotropical
> Nesochorus already described/treated by Dasch (1974), we decided it would
> have been easier for us to go our own way and start again from zero*.
> In the same way I suppose that, shall one find some problems with these
> COI-based diagnosis (e.g.: ambiguous, mismatching morphology, out of reach,
> obsolete against genomic based diagnosis, just too boring...), he can as
> well ignore Sharkey et al. 2023, and restart taxonomy and nomenclature once
> more.
>
> Also, I think that arguments like this are difficult to comment on:
> *Many of the characters in Dasch’s key use jargon that only a few
> entomologists know. *
> *For example, few of the general population understand the terms
> postpetiole and frons (Fig. 3). *
> *The key is almost impossible for professional taxonomists, and it is in
> an alien language for the vast majority of potential users.*
>
> I'm not sure if this is the right way to proceed...
>
> Marco Uliana
> Museo di Storia Naturale di Venezia, Italy
> ᐧ
> ᐧ
>
> Il giorno mer 30 ago 2023 alle ore 11:38 Roderic Page via Taxacom <
> taxacom at lists.ku.edu> ha scritto:
>
>> Hi Carlos,
>>
>> I’m reminded of Charles Godfrey’s wonderful essay "Taxonomy as
>> Information Science” https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbiostor.org%2Freference%2F250587&data=05%7C01%7Ctaxacom%40lists.ku.edu%7C06a7602db9d341b54fc008dba9fcdb8b%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C638290675710767515%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Kr69N8v5v1xLKyPpv1leQMTId3tF%2F8AQHzIgHrqoWIg%3D&reserved=0 where he
>> writes (p. 174):
>> A depressing amount of entomological taxonomy, especially in Europe,
>> consists of long and lengthy discussions of this type of taxonomic
>> book-keeping (to avoid this, some of the best taxonomists I know work only
>> in the tropics where they can be biologists rather than archivists).
>> I think the paper "Minimalist revision of Mesochorus Gravenhorst...”
>> https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Frevistas.ucr.ac.cr%2Findex.php%2Frbt%2Farticle%2Fview%2F56316&data=05%7C01%7Ctaxacom%40lists.ku.edu%7C06a7602db9d341b54fc008dba9fcdb8b%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C638290675710767515%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=1fwDBeQeyWUJJU6%2F1T%2FcfsUIaRZwHxtpQ%2F1M6bm3vfk%3D&reserved=0 (the DOI
>> doesn’t seem to be registered yet) makes a reasoned case for “ignoring"
>> earlier work.
>>
>> By my reading the authors are simply saying that creating 2-3 synonyms
>> for 10 existing names is a small price to pay for being able to document
>> the other species in the large genus in a biologically rich region.
>>
>> It is a long time since I’ve done actual taxonomy, but I’m sure many
>> researchers are faced with names they can’t place, descriptions that are
>> nearly useless, specimens that are missing (or type series that comprise
>> multiple taxa). At some point we make a judgement call about whether we
>> invest time in resolving this, or put them to one side in the hope that
>> perhaps we can resolve it later (do we want to be biologists or
>> archivists?).
>>
>> The authors point out that sequencing the Dasch types (if feasible) would
>> be one way to discover whether there are synonyms.
>>
>> Your statement that “all is set to completely overwrite the current
>> morphological system and names” seems hyperbolic at best. We are in an
>> interesting time where new technologies present new opportunities (and
>> challenges), and we are figuring out how best to proceed (as we do every
>> time new technologies come along and force us to rethink things).
>>
>> Personally I’m going to re-read Charles’ essay, and ponder how this
>> debate (and others in our field) address his assessment (p. 172) that:
>> What matters is not only how interesting the question is, the potential
>> extra science that the research may leverage, but how capable the subject
>> is of delivering useful output. I think taxonomy is suffering not because
>> it is any less interesting or important than it was fifty years, but
>> because it is largely failing to deliver.
>> Regards,
>>
>> Rod
>>
>> ---------------------------------------------------------
>> Roderic Page
>> Professor of Taxonomy
>> School of Biodiversity, One Health, & Veterinary Medicine
>> College of Medical, Veterinary and Life Sciences
>> Graham Kerr Building
>> University of Glasgow
>> Glasgow G12 8QQ, UK
>>
>> Email: Roderic.Page at glasgow.ac.uk<mailto:Roderic.Page at glasgow.ac.uk>
>> LinkedIn: https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fuk.linkedin.com%2Fin%2Frdmpage&data=05%7C01%7Ctaxacom%40lists.ku.edu%7C06a7602db9d341b54fc008dba9fcdb8b%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C638290675710767515%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Ene%2BDKj83VKldG%2BXzNz%2FOvCKjIK0Jx4JeZTpZ7AMER8%3D&reserved=0
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>> ResearchGate https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.researchgate.net%2Fprofile%2FRoderic_Page&data=05%7C01%7Ctaxacom%40lists.ku.edu%7C06a7602db9d341b54fc008dba9fcdb8b%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C638290675710767515%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=%2BKPtEiLazFCB9frZ0sckiaNnn%2Br5pVk8zvyw9KBw%2FEE%3D&reserved=0
>> On 30 Aug 2023 at 09:11 +0100, Carlos Alberto Martínez Muñoz via Taxacom <
>> taxacom at lists.ku.edu>, wrote:
>> Dear Taxacomers,
>> For your enjoyment, here is the latest episode of the Meierotto *et al.*
>> (2019) saga, published six days ago, on August 24, 2023:
>> Sharkey *et al*. (2023): Minimalist revision of *Mesochorus* Gravenhorst,
>> 1829 (Hymenoptera: Ichneumonidae: Mesochorinae) from Área de Conservación
>> Guanacaste, Costa Rica, with 158 new species and host records for 129
>> species. *Revista de Biología Tropical*, 71 (S2): 1-174.
>> https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoi.org%2F10.15517%2Frev.biol.trop..v71iS2.2023&data=05%7C01%7Ctaxacom%40lists.ku.edu%7C06a7602db9d341b54fc008dba9fcdb8b%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C638290675710767515%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=kVLRELu6MLiP13q%2FKQt4FQtfehu48s6vH7KTUeT3hHs%3D&reserved=0
>>
>> You will enjoy reading through the logical fallacies in the introduction.
>> But more importantly, this paper contains what I told you and warned you
>> would happen, since the Meierotto *et al.* (2019) paper, if you failed to
>> act swiftly and properly. Now it is here. Read:
>> "Dasch (1974) treated a very small proportion of ACG *Mesochorus* species,
>> therefore few synonyms will be generated in our current effort which does
>> not attempt to match his names with Costa Rican specimens."
>> There you have a primarily morphological system finally openly hijacked by
>> a parallel taxonomic system which wants to use the naming rules of the
>> current system for convenience.
>> "In other words, it is likely that we are generating two or three synonyms
>> (0.23 x 10) of these Dasch species."
>> So, a complete disregard for priority and open acceptance of synonym
>> creation, as I warned four years ago. When things like this can go through
>> and get published, even when they threaten universality and stability,
>> then
>> you realize that we don't need a ZooCode anymore. Given that the authors,
>> reviewers, and editor accepted 23% synonym creation as good, then all is
>> set to completely overwrite the current morphological system and names, as
>> the 2 million species described versus 10 million species estimate is just
>> 20%. If we estimate a total of 80 or 100 million species, then creating 2
>> million synonyms for the existing names goes down to a "negligible" 2%
>> synonymy threshold. Completely acceptable, isn't it?
>>
>> To the commissioners who have tolerated this, because of their conflict of
>> values (not of interest) based on the incorrect assumption that species
>> need scientific names to be assessed and protected: anyone that has read
>> through the IUCN Red List methodology knows that this is not true, and
>> there are countries with legislation in place to protect species even if
>> they don't have scientific names. You better update yourselves.
>>
>> By the way, at least one of the species has two original spellings,
>> *Mesochorus
>> dotres* (which should be declared an incorrect original spelling) and
>> *Mesochorus
>> dostres* (the supposedly correct spelling).
>>
>> Now I will just sit here and contemplate the devastation.
>>
>> Am I forgetting to emphasise something? Ah, yes: "I told you".
>>
>> Yours in horror,
>> Carlos Martínez
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