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2010 IUCN Red List (1 Viewer)

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I don't understand where they extract their sources from. For example the lumping of Yellow-breasted Tit as Turkestan Tit? Any-one an idea?
 
Yellow-breasted & Turkestan Tits

JustinJansen said:
I don't understand where they extract their sources from. For example the lumping of Yellow-breasted Tit as Turkestan Tit? Any-one an idea?
Click to expand...
Well, I expect that the 2010 BLI checklist update (V3?, presumably to be published soon) will include references to support the latest taxonomic decisions.

But Parus/Cyanistes flavipectus Yellow-breasted Tit is lumped with P/C cyanus Azure Tit by Eck & Martens 2006, Gosler & Clement 2007 (HBW12) and IOC;
and P bokharensis Turkestan Tit is lumped with P major Great Tit by Eck & Martens 2006 and IOC.
http://www.repository.naturalis.nl/document/41716

Richard
 
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Yellow-breasted & Turkestan Tits

Richard Klim said:
Well, I expect that the 2010 BLI checklist update (V3?, presumably to be published soon) will include references to support the latest taxonomic decisions.
But Parus/Cyanistes flavipectus Yellow-breasted Tit is lumped with P/C cyanus Azure Tit by Eck & Martens 2006, Gosler & Clement 2007 (HBW12) and IOC;
and P bokharensis Turkestan Tit is lumped with P major Great Tit by Eck & Martens 2006 and IOC.
http://www.repository.naturalis.nl/document/41716
Click to expand...
Actually, although the revised BLI checklist has not yet been published, the species factsheets have already been updated. The lumps follow Eck & Martens 2006 and Päckert et al 2005 respectively:
http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=32614&m=0
http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=32615&m=0
http://www3.interscience.wiley.com/journal/118646742/abstract
http://www2.mnhn.fr/crbpo/IMG/pdf/tits_Ibis_150_4_.pdf

Richard
 
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BLI taxonomic decisions

Although the 2010 version of the BLI checklist hasn't yet been published for download, the Data Zone / Search Species facility is evidently already using a new version of the database. So, a general search including taxa that are either not recognised or under review by the BLI Taxonomic Working Group reveals [in addition to the changes listed in 'IUCN Red List: What's new (2010)']:

  • taxa 'under review' in V2/2009, but now downgraded to 'not recognised' by BLI-TWG;
  • new taxa (proposed splits or newly described) added to the checklist since V2/2009, now 'under review' by BLI-TWG.
http://www.birdlife.org/datazone/sp...nName=&cboRegion=-2&cboCountry=-2&chkIncTax=1

Richard
 
Richard Klim said:
Although the 2010 version of the BLI checklist hasn't yet been published for download, the Data Zone / Search Species facility is evidently already using a new version of the database. So, a general search including taxa that are either not recognised or under review by the BLI Taxonomic Working Group reveals [in addition to the changes listed in 'IUCN Red List: What's new (2010)']:

  • taxa 'under review' in V2/2009, but now downgraded to 'not recognised' by BLI-TWG;
  • new taxa (proposed splits or newly described) added to the checklist since V2/2009, now 'under review' by BLI-TWG.
Click to expand...

In comparison with BirdLife - Taxonomic 2010 decisions file there are some differences, maybe still a work in progress. :-C
 
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Interesting paper about DD category of the IUCN Red List
Butchard & Bird 2010. Data Deficient birds on the IUCN Red List: What don’t we know and why does it matter? Biological Conservation Volume 143, Issue 1, January 2010, Pages 239-247.
It's free to download by now
link here
 
Is there any reason why the Hawaiian NKP birds (e.g. Ou) have not been declared extinct? IUCN criteria? They have clearly gone.

a
 
Hawaiian extinctions

lewis20126 said:
Is there any reason why the Hawaiian NKP birds (e.g. Ou) have not been declared extinct? IUCN criteria? They have clearly gone.
a
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Don't know anything about Hawaiian birds, but this might be of interest:

Richard
 
Platysteira hormophora

Richard Klim said:
Now posted:
http://www.birdlife.info/docs/SpcChecklist/Checklist_v3_June10.zip

Richard
Click to expand...

Platysteira hormophora in the BLI Checklist v3 as one of the Under review species, presumably as a result of Njabo et al 2008, Phylogeny, biogeography and taxonomy of the African wattle-eyes (Mol. Phyl & Ev.). Full paper here.
Platysteira hormophora as a phylogenetic species split from biological species already by Dillon and Fjeldså, 2005. The implications of different species concepts for describing biodiversity patterns and assessing conservation needs for African birds. Ecography, Vol. 28, Issue 5, pp 682-692. Appendix of this work - List of splits is available to download from here.
 
BirdLife Checklist v3 2010 - some possible incorrect gender of scientific specific epithets:
Aquila fasciatus (v2 as Hieraaetus fasciatus) - correct Aquila fasciata (?)
Aquila africanus (v2 as Spizaetus africanus) - Aquila africana (?)
Oreolais pulchra (v2 as Apalis pulchra) - Oreolais pulcher (?)
Eremopsaltria mongolicus (v2 as Rhodopechys mongolicus) - Eremopsaltria mongolica (?)
 
njlarsen said:
This story, linked to in posts 2 and 3, mention the 50 year limit as a minimum number.

Niels
Click to expand...

Niels - I don't see that there? The last records of the Aloatra Grebe were in the 1980s I think (e.g. "Birds to Watch 3"). I see a parallel with the Hawaiian birds but a strange reluctance to make the inevitable announcement.

a
 
Clements has it last reported in 1950. However, I cannot now find the mention of the year limit in the article any longer. I remember I went back to the link to check that the age limit was there before posting, so either I am getting Alzheimer, or the story was edited (I thought it was longer than what it shows now).

Niels
 
Aloatra Grebe

Whatever the actual extinction date (almost certainly very long ago, but we'll never know for sure), I just found it strange that BLI has chosen this particular belated announcement (essentially a species long considered to be extinct, at last being 'officially' classified as extinct) to be a major conservation headline right now.

Richard
 
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