Question

Describe the factors responsible for reproductive isolation

Answer 1

Barriers to Reproduction. Reproductive isolation can be caused by pre-zygotic and post-zygotic barriers. Pre-zygotic barriers: barriers that prevent animals from mating. These include temporal isolation, ecological isolation, behavioral isolation, and mechanical isolation.

Answer 2

a) Temporal isolation. Individuals of different species do not mate because they are active at different times of day or in different seasons.
b) Ecological isolation. Individuals mate in their preferred habitat, and therefore do not meet individuals of other species with different ecological preferences.
c) Behavioral isolation. Potential mates meet, but choose members of their own species.
d) Mechanical isolation. Copulation is attempted, but transfer of sperm does not take