In the southwestern desert of the united states there are temporary ponds that form only after heavy summer rains. as a naturalist, you visit these ponds and notice that female frogs mate with males of their own species based only on their calls. the lack of mating between species would be an example of and

This is an example of post-zygotic isolation and behavioral isolation. Behavioral isolation is defined as a mechanism allowing members of a species to only identify one another as correct mates. Post-zygotic isolation, however, is when two members of different species mate and create a hybrid, infertile offspring, which is, of course, not desirable and rarely happens without human intervention.