Lack of free-running circadian rhythm in LD-entrained animals. Actograms for LD animals 4, 6, 7, and 8 generated with Actogram (Schmid et al. 2011) at default settings. Each row represents two days, shifted by one day forward in relation to the previous row. Grey overlays indicate light-off periods.

 
 
  Part of: Royzenblat S, Kulacic J, Friedrich M (2023) Evidence of ancestral nocturnality, locomotor clock regression, and cave zone-adjusted sleep duration modes in a cave beetle. Subterranean Biology 45: 75-94. https://doi.org/10.3897/subtbiol.45.100717