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Estimating acclimation temperatures at the assemblage level in the marine environment: towards macrophysiology

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If you have a question about this talk, please contact Sophie Fielding .

Defining ecologically relevant upper temperature limits of species is important in the context of environmental change. The approach used here is to draw the relationship between rates of temperature change and upper temperature limits in order to evaluate the maximum acclimation temperature and to calculate a new index: the excess acclimatory capacity (EAC). This index is defined as the maximum environmental temperature increase which organisms in a given environment can cope with. It provides a measure of how close a species/ assemblage/ fauna are to their limits and hence their vulnerability to environmental warming. The method applied here, relating temperature limits to rate of experimental warming, has potential for wide application in the identification of faunas with little excess acclimatory capacity to survive environmental warming.

This talk is part of the British Antarctic Survey series.

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