TABLE 3.

Results of likelihood ratio tests evaluating species and treatment (air or water rearing environment) effects on three hatchling variables: age, stage, and mass at hatching.

Variable	χ 2	p
Age at hatching a
Species	13.02	.0003
Treatment	439.79	<1.0 × 10−15
Species × treatment	15.30	9.17 × 10−5
Stage at hatching
Species	5.40	.020
Treatment	231.70	<1.0 × 10−15
Species × treatment	165.03	<1.0 × 10−15
Mass at hatching
Species	5.96	.015
Treatment	20.17	7.1 × 10−6
Species × treatment	0.076	.78

Note: The likelihood ratio test statistic approximates a χ ² distribution with one degree of freedom, so χ ² and associated probabilities are reported here.

^a Full model took the form y = species + treatment + species × treatment + (1|clutch) + (1|site).