Table 2:

Statistical output of the model reduction, effect of artificial light at night on oxalate.

	NumDF	DenDF	F-value	elim.num	P-value
Weight	1	83	0.0503	1	0.8231
Sex	1	84	0.4542	kept	0.5022
Treatment	1	84	1.4112	kept	0.2382
Sex:Treatment	1	84	4.9941	kept	0.0281

A linear mixed model with ‘nest’ as random factor was used. Stepwise model reduction was performed (lmerTest package Kuznetsova et al., 2016). In bold the significant P-value (P < 0.05) is indicated, N = 88 individuals. NumDF is nominator degrees of freedom, DenDF is denominator degrees of freedom, elim.num is the order in which a variable is removed from the model.