[Taxacom] when is a common species critically endangered?

[Stephen Thorpe]

Thanks Ken ... perhaps even just "vulnerable" is the appropriate category? It is not threatened, as such, for as long as Clianthus is widely cultivated in gardens and parks, and there is no indication that this will change ...



________________________________
From: Ken Kinman <kinman at hotmail.com>
To: stephen_thorpe at yahoo.co.nz; fwelter at gwdg.de 
Cc: taxacom at mailman.nhm.ku.edu 
Sent: Wednesday, 27 June 2012 12:05 PM
Subject: RE: [Taxacom] when is a common species critically endangered?


Hi Stephen, 
      I would agree that calling this mite "critically endangered" is excessive.  I would think it would suffice to categorize it as "threatened".              
               -------------Ken
-------------------------------------------------------------------------------------------------------------------------


> Date: Tue, 26 Jun 2012 16:29:30 -0700
> From: stephen_thorpe at yahoo.co.nz
> To: fwelter at gwdg.de
> CC: taxacom at mailman.nhm.ku.edu
> Subject: Re: [Taxacom] when is a common species critically endangered?
> 
> Thanks Francisco ... here is the actual example, with references: http://en.wikipedia.org/wiki/Aceria_clianthi
> 
> 
> 
> ________________________________
> From: Francisco Welter-Schultes <fwelter at gwdg.de>
> To: Stephen Thorpe <stephen_thorpe at yahoo.co.nz> 
> Cc: TAXACOM <taxacom at mailman.nhm.ku.edu> 
> Sent: Wednesday, 27 June 2012 11:24 AM
> Subject: Re: [Taxacom] when is a common species critically endangered?
> 
> Hi Stephen,
> 
> Yes I agree with you. It is currently not necessary to take measures for
> saving this species. It is also inconsistent with the treatment of Homo
> sapiens on the IUCN Red List.
> Homo sapiens was placed on the Red List in 2008, in the Least Concern
> category. We could also say, almost extinct in the wild. There is one
> surviving undisturbed natural population of about 100 individuals on an
> island of the Andaman islands, India, which has, as far as know, no
> protection from a Red List status.
> 
> I have also a critical position to placing clearly not threatened species
> on Red Lists, such as quickly spreading and invasive species, and
> classifying them in the Least Concern category together with species which
> are in serious decline but do not yet qualify for Near Threatened. The Red
> List is broadly understood as a synonym for a list of threatened or near
> threatened species. It is not thought to represent a list of all species
> of the world.
> 
> Francisco
> 
> > For plants, this is easy to answer: when it is critically endangered in
> > the wild, but common in cultivation. More interesting is the case of an
> > insect or mite, host specific to such a plant. I am debating this issue at
> > the moment. A mite has been put on the "Nationally Critical" list just
> > because its only host plant is on the "Nationally Critical" list. But I
> > say this is wrong! The plant is common in cultivation, and the mite is
> > also on cultivated plants! For animals, including mites, you can't make an
> > "in the wild" vs. "in cultivation" distinction. Basically the mite is "in
> > the wild" regardless of whether it is on wild or cultivated plants, in my
> > view. What do others think?
> >
> > Stephen
> > _______________________________________________
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> 
> 
> Francisco Welter-Schultes
> Zoologisches Institut, Berliner Str. 28, D-37073 Goettingen
> Phone +49 551 395536
> http://www.animalbase.org/
> _______________________________________________
> 
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> The Taxacom archive going back to 1992 may be searched with either of these methods:
> 
> (1) by visiting http://taxacom.markmail.org
> 
> (2) a Google search specified as: site:mailman.nhm.ku.edu/pipermail/taxacom your search terms here