Charisse L Davidson

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The HPO 4 2− and CO 3 2− content was determined in sound enamel and in material collected from artificially produced carious lesions. The method described shows that the HPO 4 2− content can be determined from the 875 cm−1 infrared absorption band if correction for the CO 3 2− contribution are made. The I. R. spectra show that the HPO 4 2− content in sound(More)
We used the doubly labeled water technique to measure daily energy expenditure (DEE) during the incubation and feeding nestling stages in two populations of white-crowned sparrows (Zonotrichia leucophrys) - one montane and migratory, the other coastal and sedentary - that differ in thermal environment and clutch size. We assessed the birds' thermal(More)
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