Rapoport’s Rule

Question 1

What is Rapoport’s Rule (1975)

Answer 1

geographic range size for mammals decreased as one moved from polar to equatorial regions

Question 2

examples of Rapoport’s Rule

Answer 2

North American Mammals - for 523 species very large ranges are rare.
- ex. range sizes decrease as latitude decreases.
- plus, average Canadian mammal species have ranges 25 times larger than Mexican mammal species.