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Circadian oscillatory patterns of oxygen uptake in individual workers of the ant Camponotus rufipes
Author(s) -
TAKAHASHIDELBIANCO M.,
BENEDITOSILVA A. A.,
HEBLING M. J. A.,
MARQUES N.,
MARQUES M. D.
Publication year - 1992
Publication title -
physiological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 57
eISSN - 1365-3032
pISSN - 0307-6962
DOI - 10.1111/j.1365-3032.1992.tb01035.x
Subject(s) - biology , circadian rhythm , hymenoptera , respiration , nest (protein structural motif) , darkness , rhythm , woodland , ant , ecology , botany , zoology , medicine , biochemistry , endocrinology
. Respiratory rates of individual workers of Camponotus rufipes Fabricius (Hymenoptera: Formicidae) were measured at 25d̀C and LD 12:12 h (lights on 06.00 hours), DL 12:12h (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, Sāo Paulo, Brazil. The respiration of ants showed a circadian rhythm with acrophase ranging from 20 h 41 min to O1 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.