Taxacom: replacing un-sequenceable types (was Re: Minimalist revision of Mesochorus)

[Richard Pyle]

> I disagree with Marko that species delimitation is “arbitrary” — it’s not — it’s
> just very difficult as you need a lot of genetic (and morphological) data to
> demonstrate (or refute) gene flow and thus not objectively feasible for the vast
> majority of species at this point.

It's still arbitrary.  Even with perfect knowledge of rates of gene flow, it's still arbitrary how much gene flow (and over what time scale) represents the minimum necessary to represent conspecificity.

Aloha,
Rich


Richard L. Pyle, PhD
Senior Curator of Ichthyology | Director of XCoRE
Bernice Pauahi Bishop Museum
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