Answer:
Temporal separation
Explanation:
A form of prezygotic reproductive barrier is temporal separation or temporal Isolation. Temporal isolation stands for 'isolated in time,' that is to say, species mates at different times probably the time of the day, season or different years, even though they are closely related or live in the same habitat.
Another example is the American toad and the Fowler's toad. Both are closely related species with distinct copulation peridods. The American toad copulates during early summer and the other at lat summer.