Result interpretation

[Utpal Smart]

Hi Nick,

I was hoping you could clarify my doubts regarding interpretation of the following DIVALIKE+J result (figure attached)  :

When you go from range A to B or A to C or A to D, it represents a founder event, since a dispersal event is anagenetic and would consist of the retention of the ancestral area (e.g. A to AB). Am I on the right track?

Thanks,

[Nick Matzke]

Hi!  Yep, that's the basic interpretation, since you estimated j > 0.

Always look at the pie charts also, and for more complex cases, you have to keep in mind some other points when interpreting these plots:

http://phylo.wikidot.com/biogeobears-mistakes-to-avoid#Most_prob_states_not_joint

======================

Ancestral range estimation, not ancestral area reconstruction

The plot of most-probable states is not the same thing as the best joint history

How do I get the best joint history

The plot of most-probable states is not the same thing as an estimate of event counts

======================

Cheers!

Nick

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