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Re: Cope's Rule in the Pterosauria - Hone & Benton 2007
>...I am personally a bit perplexed how pervasive the "competitive >exclusion
>by other flying vertebrates" concept is. It's not a bad >concept, per se, but
>it is a little vague.
Yes...and if we are borrowing ecology principles, we might want to look at
"character displacement"--interclade character displacement might be a good way
of thinking about the _avoidance_ of competition driving directional
selection...in this case, possible size increase in pterosaurs.