2.4 ecological tolerance

ecological range of tolerance

the range of conditions in which this species can survive. Some species of plants and animals are able to survive in a wide range of conditions, while others may only tolerate a specific narrow range of temperature, humidity, or other environmental conditions.

optimal range

Range in which a species will thrive.

zone of physiological stress

when the range of environmental conditions is not comfortable for an organism

zone of intolerance

Outermost regions in which organisms cannot survive 

periodic disruption

occurring at repeated intervals ( dry and wet seasons )

episodic disruptions

 occurring occasionally and at irregular intervals ( hurricanes, droughts, fires etc.)

Random disruptions

no regular frequency ( volcanoes, earth quakes)