, Volume 20, Issue 1, pp 40–42 | Cite as

Oxygen uptake rhythms in a cockroach gauged by variance spectra

  • A. G. Richards
  • F. Halberg
Kurze Mitteilungen


Oxygen Oxygen Uptake Variance Spectrum Uptake Rhythm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Der Sauerstoffverbrauch vonPeriplaneta americana (L.) wurde im Dauerlicht und im 24-stündigen Licht-Dunkelwechsel bei 30, 24 oder 18°C alle 20 min bestimmt. Im Varianzspektrum dieser Beobachtungsreihen lassen sich neben der ungefähren Tagesperiodik (Circadian-Periodik) auch höherfrequente, unregelmässigere und weniger prominente Rhythmen nachweisen.


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Copyright information

© Birkhäuser Verlag 1964

Authors and Affiliations

  • A. G. Richards
    • 1
  • F. Halberg
    • 1
  1. 1.Departments of Pathology and EntomologyUniversity of MinnesotaMinneapolisUSA

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