1. Why is a realized niche usually narrower, or more restricted, than a fundamental niche? 2. What portion of humans’ fundamental niche are we occupying today? Do you think our realized niche has...

1. Why is a realized niche usually narrower, or more restricted, than a fundamental niche?

2. What portion of humans’ fundamental niche are we occupying today? Do you think our realized niche has changed over the past 200 years? Why or why not?