AP BIOLOGY

Detailed explanation-1: -Examples of temporal isolation include differences in mating behaviors or fertility due to the time of day, time of year, or varied mating cycles. Two species which are temporally isolated long enough may eventually accrue enough genetic differences that they will no longer be able to interbreed.

Detailed explanation-2: -For example, a peculiar form of temporal isolation has been observed between two closely related species of cicadas of the genus Magicicada in the United States. Sexually mature adults of Magicicada tredecim emerge every 13 years, whereas those of M. septendecim emerge every 17 years.

Detailed explanation-3: -“Species of fish living in different areas of a pond due to differential salt concentrations” is not an example of behavioral isolation because there is not difference in mating behaviors that reproductively isolates the two species of fish.

Detailed explanation-4: -There are two main categories of reproductive isolation barriers: Prezygotic isolation – occurs before fertilisation can occur (no offspring are produced) Postzygotic isolation – occurs after fertilisation (offspring are either not viable or infertile)