That's an endearingly paranoid way of trying to ignore the fact that "subspecies" implies a bar that is in no way met by y-chromosome haplogroups.
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Replying to @ElSandifer @homunculette
It doesn't imply any kind of "bar". It's a flexible taxonomic heuristic.
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The Humpty Dumpty Gambit.
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Unless you're both arguing that all taxonomic order breaks off completely at the level of the species, this is nonsense.
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Haplogroups don't map to subspecies, and calling it a "flexible taxonomic heuristic" is just hand-waving.
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Haplogroups are subspecies, period.
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I'm no expert, but no, they're not.
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And the difference is ...?
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As I said, I'm not an expert, but the difference appears to be that they are different things.
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A haplogroup is a genetically-identifiable sub-population within a species, so how that is not exactly a subspecies defies me completely. ...
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... Also not a population genetics expert, of course, but I would expect the category of a 'subspecies' to be broader.
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You 3 hrs ago: "Haplogroups are subspecies, period." Also you, now: "... I would expect the category of a 'subspecies' to be broader."
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Consistent, if ambiguously expressed. Haplogroups are subspecies (period) in the same way that beetles are insects. It doesn't mean the concepts are interchangeable.
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End of conversation
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