Table 2. Effects of light treatment on fecundity and offspring size.

Models	0 lux at night	20 lux at night	Statistic	P-value
(a) Eggsacs per female (count)
Light treatment	5.18 ± 0.47	5.40 ± 0.46	χ2 = 0.11, df = 1	0.74
(b) Spiderlings per female (count)
Light treatment	4,367.92 ± 361.61	1,471.27 ± 234.37	χ2 = 43.06, df = 1	<0.0001
(c) Spiderlings per eggsac (count)
Light treatment	895.07 ± 35.01	311.23 ± 22.33	χ2 = 183.34, df = 1	<0.0001
(d) Individual spiderling mass (mg)
Light treatment	2.36 ± 0.05	2.33 ± 0.05	F(1,45) = 0.16	0.70

Note:

Measures (mean ± SE) of fecundity and offspring size for spiders in the dark at night (0 lux) and light at night (20 lux) treatments.

Significant P-values (P < 0.05) are shown in bold.