Section 3.1 Summary – pages
65-69
Ranges of tolerance
•The ability of an
organism to withstand fluctuations in
biotic and abiotic environmental factors is known as tolerance.
Limits
of Tolerance
Organisms absent
Organisms infrequent
Greatest number of organisms
Organisms infrequent
Organisms absent
Zone of intolerance
Zone of Physiological stress
Optimum range
Lower limit
Upper limit
Range of tolerance
Zone of Physiological stress
Zone of intolerance