"Effects of Environmental Factors on Circadian Activity in the Flesh Fl" by Karl H. Joplin and Darrell Moore
 

Effects of Environmental Factors on Circadian Activity in the Flesh Fly, Sarcophaga Crassipalpis

Document Type

Article

Publication Date

3-1-1999

Description

The diel locomotor activity patterns of wandering larvae in the flesh fly, Sarcophaga crassipalpis Macquart (Diptera: Sarcophagidae), were examined using a novel apparatus and shown to be primarily diurnal, but with a minority (37%) showing nocturnal activity. In response to the environmental stress of heat shock, a significantly larger proportion (72%) of the larvae became nocturnal. In comparison, adult circadian activity also was predominantly diurnal, but not correlated with the larval activity patterns. In addition, adult patterns showed age-related changes in entrainment and free running period. Finally, the phase of circadian-gated adult eclosion was shown to be entrained by a 3-day exposure to light-dark cycles delivered prior to pupariation, with the phase maintained throughout pupal-adult metamorphosis under constant dark conditions. These results demonstrate that environmental changes may have profound effects on the expression of 24-h activity patterns and circadian rhythms during different life stages throughout development.

Plum Print visual indicator of research metrics
PlumX Metrics
  • Citations
    • Citation Indexes: 15
  • Usage
    • Abstract Views: 2
  • Captures
    • Readers: 20
see details

Share

COinS