A hypothetical graph of flower visitation frequency by various pollinators. Some overlap is exhibited; however some species exclusively pollinate certain species illustrating how pollinator isolation can be detected in natural or laboratory settings.
<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>