AP Bio: 7.10 - Speciation

What does speciation start with?

reproductive isolation

Name two post-zygotic barriers to reproduction.

1. decreased hybrid viability

2. decreased hybrid fertility

3. hybrid breakdown

Name three pre-zygotic barriers to reproduction.

1. habitat isolation

2. mechanical isolation

3. temporal isolation

4. behavioral isolation

5. gametic isolation

selection and variation that occur in small increments

gradualism

What term refers to radical change occurring in a short period of time, then followed by periods of stability?

punctuated equilibrium