5. Metabolism and Adverse Conditions - Surviving Adverse Conditions Flashcards
What must an organism do if environment varies beyond tolerable control?
It must be able to survive or avoid the cyclic or unpredictable fluctuations
How does dormancy allow survival?
It reduces metabolic rate during a period when costs of maintaining metabolism would be too high
What is predictive dormancy?
when the onset of dormancy occurs before adverse conditions - evolves in response to cyclic adversity
What is consequential dormancy?
When onset dormancy occurs after onset of adverse conditions - evolves in response to unpredictable fluctuations
When does hibernation happen?
In mammals in cold environments when food in unavailable
What is aestivation?
Survival in periods of high temperature or drought
What is daily torpor?
Reduced activity in organisms with high metabolic rates
