Radiolsotopes as metabolic labels forGlossina(Diptera: Glossinidae). I. Laboratory determination of the relationship between radioisotope metabolism, respiration and temperature

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Abstract
The turnover of the radioisotope137Cs is shown to be of a one-component nature and to be positively correlated with temperature for males of bothGlossina morsitansWestw. andG. pallidipesAust. A direct correlation with oxygen consumption is also demonstrated, and the relation for both species may be described by the same regression line. The feasibility of using137Cs as a metabolic label for tsetse is therefore confirmed, and it is suggested that the predictive nature of the relationship between radioisotope turnover and metabolism may extend beyond closely related species.