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Table 2 Sources of variation in the number of active bouts, the duration of inactive bouts and the total duration of inactivity in relation to humidity and noise (PC1) and temperature and light (PC2, see Table 1). All models control for variation induced by time of night (early and late night) and included random intercepts for nest box and day. We present fixed parameters (β) and random parameters (σ) with their 95% credible intervals (CrIs); effects with credible intervals that do not include zero are considered to be likely important

From: Nocturnal resting behaviour in urban great tits and its relation to anthropogenic disturbance and microclimate

  Number of active bouts Duration of inactive bouts Proportion of night inactive
Fixed effects β [CrIs] β [CrIs] β [CrIs]
 Intercept 0.28 [− 0.34–0.79] − 2.29 [− 22.19–19.73] 0.53 [− 0.10–1.14]
 PC1 0.03 [− 0.19–0.25] − 0.04 [− 0.31–0.22] − 0.06 [− 0.31–0.19]
 PC2 0.00 [− 0.17–0.18] 0.03 [− 0.19–0.24] 0.02 [− 0.18–0.21]
 Time of night 0.14 [− 0.35–0.08] 0.00 [− 0.03–0.04] − 0.36 [− 0.70–-0.04]
Random effects σ [CrIs] σ [CrIs] σ [CrIs]
 Nest box 0.88 [0.58–2.15] 0.05 [0.33–1.23] 0.44 [0.29–1.09]
 Day 0.03 [0.01–0.04] 0.00 [0.00–0.00] 0.00 [0.00–0.00]
 Residual 0.25 [0.20–0.35] 0.66 [0.50–0.89] 0.66 [0.49–0.90]