Ecological speciation that occurs through pollinator isolation. Here, a species population of pink petal flowers becomes isolated in allopatry or parapatry. Novel pollinators drive the selection of new traits (purple petals) in the isolated populations eventually leading to speciation of the flower populations. It is possible for the same pollinator to drive the selection of new flower traits as long as the proportions of pollinators differ enough.
<a href="//commons.wikimedia.org/wiki/User:Azcolvin429" title="User:Azcolvin429">Andrew Z. Colvin</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>