Fig. 1
From: Temperature and CO2 concentration in honey bee hives exhibit circadian rhythms
Proportion sums of squares (average ± s.e.), calculated as the spectral density divided by the product of the variance and the degrees of freedom, for periods ≥ 8 h for detrended temperature and CO2 concentration data (calculated using a 48 h moving average). Shown are periodogram results for each of six consecutive 3-d data subsets. (A) Temperature in Fall 2020 experiment; (B) Temperature in Fall 2021 experiment; (C) CO2 concentration in Fall 2020 experiment; (D) CO2 concentration in Fall 2021 experiment.
