Amplitude of circadian rhythms becomes weaker in the north, but there is no cline in the period of rhythm in a beetle
M. S. Abe, K. Matsumura, T. Yoshii, T. Miyatake
The study examines circadian rhythm traits in red flour beetles across Japan, finding weaker rhythms in northern areas but no variation in period.
bioRxiv · Aug 28, 2020Animal Behavior & Cognition