Takahashi-Del-Bianco, M.Hebling, MJABueno, O. C.2014-05-202014-05-201998-02-01Comparative Biochemistry and Physiology A-molecular and Integrative Physiology. New York: Elsevier B.V., v. 119, n. 2, p. 529-532, 1998.1095-6433http://hdl.handle.net/11449/696The respiratory metabolism of immature forms (eggs, larvae, prepupae and pupae) of Camponotus rufipes (Hymenoptera: Formicidae) was studied at 25 degrees C, using a Warburg respirometer. Mean respiratory rates (mu l O gamma mg(-1) live weight.hr(-1)) for eggs, first instars, second instars, third instars, fourth instars, prepupae, and pupae were respectively: 2.53, 5.07, 1.23, 0.32, 0.22, 0.19 and 0.13. Adult workers with body mass between 20 and 30 mg had a mean respiratory rate of 0.43. The high respiratory rate in first instars probably reflects, besides the size influence, the metabolic costs of differentiation that occurs in this phase. (C) 1998 Published by Elsevier B.V.529-532engantsCamponotus rufipeseggsHymenopteralarvaepupaerespiratory metabolismArtigo10.1016/S1095-6433(97)00462-5WOS:000073154700012Acesso restrito