Table 1.

The variances and covariances of parental effects on larval survival within and across thermal environments: a) nonadditive genetic effects, b) maternal effects (reported as 0 when the dam variance was less than the corresponding sire variance; see text for details), and c) additive genetic effects. Within‐environment variances are in bold on the diagonal and cross‐environment covariances are in italics below the diagonal (*p < .05)

	17°C	21°C	25°C
a) Nonadditive genetic effects
17°C	0.007788*
21°C	0.004776*	0.004912*
25°C	−0.00096	0.010694*	0.037544*
b) Maternal effects
17°C	0
21°C	0	0.000727
25°C	0	0.001029	0.019622*
c) Additive genetic effectsa
17°C	0.005536*
21°C	0.005016*	0.007056*
25°C	0.008088*	0.002244	0.002352

^aReproduced from table 2 in Chirgwin et al., 2015, converted to causal components (see text for details).