title: Biological Controls on Coral Sr/Ca and dgr18O Reconstructions of Sea Surface Temperatures.
abstract: Coral strontium/calcium ratios have been used to infer that the tropical sea surface temperature (SST) cooled by as much as 6 degrees C during the last glacial maximum. In contrast, little or no change has been inferred from other marine-based proxy records. Experimental studies of the effect of growth rate and the magnitude of intraspecific differences indicate that biological controls on coral skeletal strontium/calcium uptake have been underestimated. These results call into question the reliability of strontium/calcium-based SST reconstructions.
authors.forename: S
authors.initials: S
authors.lastname: de Villiers
authors.forename: B K
authors.initials: BK
authors.lastname: Nelson
authors.forename: A R
authors.initials: AR
authors.lastname: Chivas