All statistical analyses were performed with Statistica 9.1.
The data were arcsine square root-transformed (proportion
hatch/dead) or log-transformed (days to hatch/death), whenever
was necessary for homogenizing variance, but non-transformed
values are shown in the figures. The tests used were one-way
ANOVA (proportion of hatch/dead) and the generalized linear
model (GLM) nested ANOVA (day to hatch/death; nested in treatment).
When a significant treatment effect was found, the Tukey’s
HSD post hoc test (proportion of hatch/dead) or the unequal N HSD
post hoc test (day to hatch/death) was applied to distinguish differences.
A probability level of p
≤
0.05 was considered significant
for all tests.