Table 1.
Pearson correlations and associated p-values between egg mass and components of the first laid eggs.
Figure 1.
Egg mass decreased in relation to breeding group size.
The line indicates the predicted values.
Table 2.
Factors affecting egg mass.
Figure 2.
Relationship between fresh yolk mass of first laid eggs (corrected for egg mass) and breeding group size.
Dashed line indicates predicted values from the linear mixed-effects model.
Table 3.
Factors affecting yolk mass.
Figure 3.
First eggs yolk androgen levels were lower for clutches raised with helpers than for clutches raised in pairs (means and SE are shown).
This was significant for testosterone but only marginally for androstenedione (A4).
Table 4.
Factors affecting yolk testosterone concentrations.
Figure 4.
There was a significant decrease in first eggs yolk corticosterone levels (means and SE are shown) between clutches raised in pairs and clutches raised with helpers.
Table 5.
Factors affecting yolk androstenedione concentrations.
Table 6.
Factors affecting yolk corticosterone concentrations.
Figure 5.
Fledging mass significantly increased in relation to egg mass.
Table 7.
Factors affecting fledgling mass.