They found their answer in the model of allopatricspeciation.
2
Rather, it is probable that most new brachiopod species of this age originated by allopatricspeciation.
3
I then made my usual linkage to ordinary allopatricspeciation, not to any novel or controversial mechanism of microevolution.
4
Our theory holds, as a defining statement, that ordinary allopatricspeciation, unfolding gradually at microevolutionary scales, translates to punctuation in geological time.
5
The two accounts invoke entirely different principles of saltational vs. allopatricspeciation, but the two arguments still employ an isomorphic logic).
Uso de sympatric speciation en inglés
1
We hypothesize that this pattern originated by an adaptive expansion accompanied by ecotypic divergence, followed by sympatricspeciation.