Abstract
1. Oxygen consumption of the tropical agamid species of lizard,Calotes nemoricola was measured at 15, 20, 25, 30, 35 and 40° C using different sized animals in Warburg’s respirometer. It was found that the metabolism increases with weight and temperature but the rate of increase was different at different temperatures.
2. Studies on the effect of temperature on the cold and warm acclimated lizards revealed that not only oxygen consumption, but temperature response relationships were also influenced by thermal acclimation, thus resulting in the reverse translation (II B) of the R-T curves of acclimated lizards. It was noticed that acclimation by translation was common and the type of acclimation is dependent on the size of the lizard also. Therefore, there was no acclimation in both the sexes of lizards.
3. Weight-regression coefficients (b) in general increased with temperature inC. nemoricola except in few cases. It indicated that there was no pattern of (b) values in this species.
4. R-T curves illustrate that the respiratory activity in the cold and warm smaller lizards of both sexes was significantly higher than that of the larger lizards.
5. Q10 values were calculated at 15–20, 20–25, 25–30, 30–35 and 35–40° C in both sexes and season inC. nemoricola. Comparatively, in majority of the cases, the Q10 in males and females of summer populations were greater than in the winter populations.
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Communicated by Prof. K. Pampapathi Rao,f.a.sc.
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Rao, M.V.S., Rajabai, B.S. Influence of thermal acclimation on oxygen consumption in the agamid garden lizard,Calotes nemoricola jerdon, with reference to size, sex, temperature, season and climatic conditions. Proc. Indian Acad. Sci. 79, 1–15 (1974). https://doi.org/10.1007/BF03045432
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DOI: https://doi.org/10.1007/BF03045432