Topic 5: Metabolism and Adverse Conditions Flashcards
How can animals tolerate and survive adverse conditions?
By adapting or avoiding them
What are examples that animals do which causes survival in adverse conditions?
Hibernating, going into aestivation or daily torpor
What is the definition of dormancy?
Part of an organisms life-cycle to allow survival during a period when the cost of continued normal metabolic activity would be too high
During dormancy there is a decrease in what?
Metabolic rate, heart rate, breathing rate and body temperature
During dormancy, the metabolic rate can be reduced to what?
To save energy
What are the two types of dormancy?
Predictive and consequential dormancy
What is predictive dormancy?
Occurs before the onset of adverse conditions - in response to cyclic adversity i.e. seasonal changes
What is consequential dormancy?
Occurs after the onset of adverse conditions - in response to unpredicted, sudden weather changes
How can some mammals survive during winter/low temperatures?
By hibernating
Aestivation allows for survival in periods of what?
High temperature or drought
Daily torpor is a period of what?
Reduced activity in organisms with high metabolic
How does migration avoid metabolic activity?
By expending energy to relocate to a more suitable environment
Migrate through behaviour can be two things, what are they?
innate and learned
Long-distance migration is studied using what?
Specialised techniques such as satellite tracking and leg rings (which involves re-capture)
What species take part in long-distance migratory behaviour?
Vertebrates i.e. Wales; invertebrates i.e. butterflies
