Abstract

Radiochemical procedures were used to determine strontium-90 distribution and concentrations in dentary bone samples taken from three positions on the mandibles of female pronghorn antelopes (Antilocapra americana americana) collected in October 1964 in the Newell study area, Alberta. No significant differences in pCi of 90Sr per gram of calcium were found between mandible position means, and females in the same age-classes showed no individual variations in 90Sr burdens. The differences in mean 90Sr concentrations between age-classes were highly significant, with the youngest and oldest animals showing the largest and smallest 90Sr burdens, respectively.

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