| They better understand the process of speciation, adaptation, and extinction. |
| In the classic case of allopatric speciation, gene flow is eliminated completely because of a geographic barrier. |
| Such barriers are some kind of geographic feature which isolates parts of populations, and leads to allopatric speciation. |
| If most speciation is allopatric, what would we expect to see in terms of the fossil record? |
| Over the long-term, appearance of new species may result from speciation and adaptive radiation. |
| Besides researching thrips, he studies speciation and asexuality in walking sticks and the phylogenetics of Galapagos Islands snails. |
