Posted by Kenney Krysko on January 12, 1999 at 16:56:19:
In Reply to: Re: Species is only Taxonomic level that is "real" posted by Rick Staub on January 12, 1999 at 15:51:52:
Rick,
you wrote "Grismer found that disjunct tree frog populations in Baja could be distinguished by DNA but were
unidentifiable using morphological characters. He chose to leave them as one species and just said
they each have there own evolutionary coarses. No boats rocked. By the evolutionary species
concept he could have made each population a species."
you are correct here, but we would look at the level of genetic divergence between the populations. And calibrate
this divergence with a close relative of these frog taxa. one could then decide if the populations are genetically
distinct enough to warrant new species or management units.
kenney krysko
