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Tolerance Range - Ecosystem
Organisms are able to survive only within certain maximum and minimum limits with respect to each environmental factor such as water, light and temperature. These are called the tolerance limits and the range in between these limits is the tolerance ranges. Different organisms have different tolerance ranges. Beyond the maximum and minimum limits of this range no member of a particular species can survive. For example, fish generally tolerate a narrow range of water temperature. If the water cools below the range of tolerance they die or move to warmer waters.
Figure: Range of tolerance for a population of organisms of the same species, to an environmental factor in this case temperature. The organisms shown here are scarlet prawns.
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