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Charadriiformes

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Old Thursday 5th December 2019, 14:29   #126
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That must be close to being the last nail in that coffin ...

Niels
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Old Friday 6th December 2019, 00:44   #127
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That must be close to being the last nail in that coffin ...

Niels
Isn't it the opposite of that? The 'last nail in the coffin' [the death of peoples' hopes for an armchair tick] would be very strong evidence that Old and New World Whimbrels can't be split
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Old Friday 6th December 2019, 01:03   #128
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Isn't it the opposite of that? The 'last nail in the coffin' [the death of peoples' hopes for an armchair tick] would be very strong evidence that Old and New World Whimbrels can't be split
The last nail in the coffin containing the belief that these are the same species ...

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Old Friday 6th December 2019, 08:00   #129
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A potential rollercoaster ride for British birders then, from one to two to one to two species all within a decade!
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Old Friday 6th December 2019, 09:57   #130
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Yes this is pretty conclusive. I don't see what additional information can reasonably be required by any taxonomic authorities now.
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Old Sunday 8th December 2019, 14:04   #131
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NACC uses the biological species concept: to support the split, a lot of the members are going to want to see some sort of display/call differences, or evidence of both forms breeding in close contact with no interbreeding or only the most minor amounts.
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Old Sunday 8th December 2019, 20:00   #132
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Numenius hudsonicus

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IOC Updates Diary Dec 7

Post proposed split of Hudsonian Whimbrel on Updates/PS

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Genomic phylogeography documents separation of Nearctic whimbrels as a deep monophyletic clade (Tan et al. 2019)
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Old Tuesday 10th December 2019, 00:29   #133
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IOC Updates Diary Dec 7

Post proposed split of Hudsonian Whimbrel on Updates/PS
Sorry, haven't read the refs. Where are we with the other whimbrel "subspecies" now?
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Old Tuesday 10th December 2019, 02:10   #134
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Sorry, haven't read the refs. Where are we with the other whimbrel "subspecies" now?
*Hudsonian - all the New World subspp;

*Eurasian - the rest (no mention of any split for variegatus despite it looking so distinct)
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Old Tuesday 10th December 2019, 02:40   #135
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*Hudsonian - all the New World subspp;

*Eurasian - the rest (no mention of any split for variegatus despite it looking so distinct)
According to Tan et al (as linked above) there is very little among Palearctic populations, suggesting extensive gene flow. Differences among Palearctic population appear to be mostly clinal. There is some genetic structuring on each side of the Urals, but nothing unique to variegatus.
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Old Thursday 2nd January 2020, 09:15   #136
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Numenius hudsonicus

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IOC Updates Diary Dec 7

Post proposed split of Hudsonian Whimbrel on Updates/PS
IOC Updates Diary Jan 1 Accept proposed split of Hudsonian Whimbrel
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