Please use this identifier to cite or link to this item:
http://acervodigital.unesp.br/handle/11449/33496
- Title:
- CIRCADIAN OSCILLATORY PATTERNS OF OXYGEN-UPTAKE IN INDIVIDUAL WORKERS OF THE ANT CAMPONOTUS-RUFIPES
- Universidade de São Paulo (USP)
- Universidade Estadual Paulista (UNESP)
- 0307-6962
- Respiratory rates of individual workers of Camponotus rufipes Fabricius (Hymenoptera: Formicidae) were measured at 25-degrees-C and LD 12:12 h (lights on 06.00 hours), DL 12:12 h (lights on 18.00 hours), LL (850 lux) and DD (red light, 20-30 lux), using the micro-Warburg technique. Worker ants were collected from natural nest during the winter of 1987 in a woodland park in the region of Rio Claro, São Paulo, Brazil. The respiration of ants showed a circadian rhythm with acrophase ranging from 20 h 41 min to 01 h 18 min and from 10 h 32 min to 12 h 22 min at LD and DD, respectively. In constant darkness the rhythmometric variables were similar to those presented by ants kept at LD 12:12 h. Under constant light no circadian rhythm in the respiration rates was found. A reduction in the amplitude was observed, indicating an inhibitory effect of this light regime on the respiration process.
- 1-Dec-1992
- Physiological Entomology. Oxford: Blackwell Science Ltd, v. 17, n. 4, p. 377-383, 1992.
- 377-383
- Blackwell Science
- CIRCADIAN RHYTHM
- PHOTOPERIOD
- RESPIRATION
- ANT
- CAMPONOTUS-RUFIPES
- http://dx.doi.org/10.1111/j.1365-3032.1992.tb01035.x
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/33496
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