Discontinuous ventilation in the rhinoceros beetle Oryctes Nasicornis: Direct and indirect calorimetry
2009
Lamprecht, I. | Seymour, R. | White, C. | Matthews, P. | Wadso, L.
Discontinuous gas exchange cycles (DGCs) are frequently observed with insects, i.e. oxygen take up and carbon dioxide release occur interrupted by periods of a few minutes up to many hours. The paper presents direct and indirect calorimetric experiments on DGCs of the scarabid rhinoceros beetle Oryctes nasicornis. A direct/indirect calorimetric experiment is presented. Total and specific heat production rates amount to 0.56mWand 0.42mWg –1 in the first period without DGCs and to 0.43 mW (0.32 mW g –1 ) in the second phase, resp. The mean DGC amplitude is 0.184 mW and thus between 33 and 66% of the total turnover.
Mostrar más [+] Menos [-]I. Lamprecht, R. S. Seymour, C. R. White, P. G. D. Matthews and L. Wadsö
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