Circadian Rhythm of Feeding by Adult White-Fringed Beetles, Graphognathus spp. (Coleoptera: Curculionidae)1
- 16 July 1973
- journal article
- Published by Oxford University Press (OUP) in Annals of the Entomological Society of America
- Vol. 66 (4) , 719-722
- https://doi.org/10.1093/aesa/66.4.719
Abstract
Time-of-day feeding preference studies with Graphognathus leucoloma striatus (Buchanan) and G. peregrinus (Buchanan) showed a definite preference for night feeding. Light inhibited feeding under normal and reversed light-dark cycles and under continuous light. Results of respirometer studies of G. leucoloma indicated that oxygen consumption is greater during light hours than during the hours of darkness, indicating a degree of general inactivity during feeding, and greater activity when not feeding.Keywords
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