Exactly my point, and why I mentioned the paper wasn't perfect. I agree, a study would need more sampling with respect to nuclear markers, individuals, and wild populations to do justice to the questions brought up in this thread...or construct a more robust phylogeny and examine species (or subspecific) boundaries. Gene flow and "hybridization" is a whole different can of worms, and none of that stuff was the aim of their paper.

I posted those figures just to show some work out there. It's great to see a map and tree and someone looking at the historical biogeography/phylogeography of Boa constrictors. Will be even better to see it built upon

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