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Canarian Black Oystercatcher (1 Viewer)

Valledor's book is from 2013 and he refers to Phil Hockey (cf The taxonomic status of the Canary Islands Oystercatcher Haematopus (niger) meadewaldoi, BBOC v. 102, 1982) who regarded the Canary Island Oystercatcher as valid species and so did the IUCN Red List.
 
Tereza Senfeld, Thomas J. Shannon, Hein Van Grouw, Dane M. Paijmans, Erika S. Tavares, Allan J. Baker, Alexander C. Lees & J.Martin Collinson. Taxonomic status of the extinct Canary Islands Oystercatcher Haematopus meadewaldoi. Ibis, First published: 26 August 2019 https://doi.org/10.1111/ibi.12778

Abstract:

Mitochondrial genes were sequenced from four specimens of the extinct Canary Islands Oystercatcher Haematopus meadewaldoi and compared to African Oystercatcher H. moquini, Eurasian Oystercatcher H. ostralegus, and an old unidentified extralimital ‘black’ oystercatcher specimen from The Gambia. At these loci, H. meadewaldoi was approximately 99.65% identical to multiple Eurasian Oystercatcher samples and in phylogenetic trees fell within the range of genetic variation observed in that species. The mystery Gambian bird was resolved as an extralimital H. moquini. We conclude that H. meadewaldoi was most likely a recently diverged melanistic morph or subspecies of H. ostralegus, though further genomic studies will be required to determine if there has been a period of isolation followed by introgression.
 
The supplemental material has some nice pictures of a Gambian oyster catcher. Brilliant Laurent analysis in link provided by Andy Adcock just above 18 December 2018.
 
Haematopus meadewaldoi

Peter Kovalik said:
Tereza Senfeld, Thomas J. Shannon, Hein Van Grouw, Dane M. Paijmans, Erika S. Tavares, Allan J. Baker, Alexander C. Lees & J.Martin Collinson. Taxonomic status of the extinct Canary Islands Oystercatcher Haematopus meadewaldoi. Ibis, First published: 26 August 2019 https://doi.org/10.1111/ibi.12778

Abstract:

Mitochondrial genes were sequenced from four specimens of the extinct Canary Islands Oystercatcher Haematopus meadewaldoi and compared to African Oystercatcher H. moquini, Eurasian Oystercatcher H. ostralegus, and an old unidentified extralimital ‘black’ oystercatcher specimen from The Gambia. At these loci, H. meadewaldoi was approximately 99.65% identical to multiple Eurasian Oystercatcher samples and in phylogenetic trees fell within the range of genetic variation observed in that species. The mystery Gambian bird was resolved as an extralimital H. moquini. We conclude that H. meadewaldoi was most likely a recently diverged melanistic morph or subspecies of H. ostralegus, though further genomic studies will be required to determine if there has been a period of isolation followed by introgression.
Click to expand...

IOC Updates Diary Feb 25

Post proposed lump of Canary Islands Oystercatcher with Eurasian Oystercatcher as a distinctive subspecies of the latter.
 
In July 2020 Ibis Short Communication
Taxonomic status of the extinct Canary Islands Oystercatcher Haematopus meadewaldoi.
Tereza Senfeld et al.
If anyone has access is there any difference from the 2019 paper?
 
mb1848 said:
In July 2020 Ibis Short Communication
Taxonomic status of the extinct Canary Islands Oystercatcher Haematopus meadewaldoi.
Tereza Senfeld et al.
If anyone has access is there any difference from the 2019 paper?
Click to expand...
Can't find anything about this, but I don't have a time machine to hand to look at next month's issue 3:)

Since the title is the same as the 2019 paper, I'd guess it is an addenum or correction to it?
 
Thank you tern. This process you discribe as come into print . What exactly is that? Kidding. I hope that despite the pandemic "further genomic studies will be required" are being done.
 
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