laws and rules

Question 1

Liebig’s Law of the Minimum

Answer 1

Org’s growth limited by resource in
least supply

Question 1

Blackman’s Law of Limiting Factors

Answer 1

sim to Liebig’s Law of Minimum

Question 2

Paracelsus’s “Principle of Toxicity”

Answer 2

all things are poisons; dose or concentration determines toxicity

Question 3

Shelford’s Law of Tolerance

Answer 3

Organisms live w/in range of
deficiency and excess of resource or physical environ condition

Question 4

Bergmann’s Rule

Answer 4

body size increases with increase in latitude

Question 5

Allen’s Rule

Answer 5

endotherms with similar volumes may have diffrent surface area
–impacts thermal regulation

Question 6

Jordan’s Rule

Answer 6

N vertebrae in marine fish ↑ along gradient
from tropics to cooler waters at higher lat’s

Question 7

The Island Rule

Answer 7

1) Large animals from the mainland tend to shrink on islands
2) Small animals from the mainland tend to grow

Question 8

The Principle of Allocation

Answer 8

Adaptations to one challenge may
preclude or reduce adaptations to others