Thermal optimum
http://dbpedia.org/resource/Thermal_optimum
A thermal optimum is either a portion of a specified geological time span in which the average temperature was above that of the average temperature for the entire specified time or the optimum range within which a biological process may take place or the ambient optimal range for a species' niche.
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Thermal optimum
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A thermal optimum is either a portion of a specified geological time span in which the average temperature was above that of the average temperature for the entire specified time or the optimum range within which a biological process may take place or the ambient optimal range for a species' niche. In geology, scientists speak of a Holocene thermal optimum or maximum, for example, when referring to the warm period from 7000 to 2500 BC, in which an overall rise in average temperature is seen in evidence from ice cores and from stable isotope data. Scientists are interested in these periods because they may be clues to evolutionary pressures experienced by species during large spans of time.
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