Different mating times, either seasonal or diurnal versus nocturnal, are examples of what type of a. a. isolation?
b. temporal isolation
c. geographic isolation
d. habitat isolation
e. depression isolation
f. mechanical isolation

Temporal isolation

Explanation:

Temporal isolation is one of the pre-zygotic reproductive isolation mechanisms that prevent the formation of a zygote by interbreeding between two individuals of different species. Temporal isolation occurs when individuals of two species present in the same habitat differ in their timing of reproductive maturity or mating. They reproduce at a different time of day or in different seasons.

For example, Drosophila pseudoobscura reproduces in the afternoon while D. persimilis mates in the morning only. Due to different timings of mating, fruit files of these two species do not interbreed and maintain reproductive isolation.