Metabolism and Adverse Conditions 2.5 Flashcards
What do many environments vary beyond the tolerable limits of?
Many environments vary beyond the tolerable limits for normal metabolic activity for any particular organism. Some animals have adapted to survive these adverse conditions while others avoid them.
What is Dormancy?
Dormancy is part of some organisms’ life cycle to allow survival during a period
when the costs of continued normal metabolic activity would be too high.
During Dormancy, What is there a decrease in?
During dormancy there is a decrease in:
Metabolic Rate
Heart Rate
Breathing Rate
Body Temperature
What can be reduced during dormancy to save energy?
The metabolic rate can be reduced during dormancy to save energy.
What two things can dormancy be?
Dormancy can be predictive or consequential.
When does predictive dormancy occur?
Predictive dormancy occurs before the onset of adverse conditions.
When does consequential dormancy occur?
Consequential dormancy occurs after the onset of adverse conditions.
What is the definition of hibernation?
Hibernation - Some mammals survive winter/low temperatures by hibernating.
What is the definition of aestivation?
Aestivation allows survival in periods of high temperature or drought.
What happens during Daily Torpor?
Daily Torpor is a period of reduced activity in some animals with high metabolic
rates.
What is migration?
Migration avoids metabolic adversity by expending energy to relocate to a more
suitable environment.
What are the two types of behaviour can migratory behaviour be?
Migratory behaviour can be innate and learned.
What is used to study long distance migration?
Specialised techniques are used to study long-distance migration, e.g. satellite tracking and leg rings.
