Fig. 2.

Log transformed estimated variance components (±SE) for characteristics of pollen masses provided to male (dark bars) and female (light bars) eggs in solitary and social nests (a dry weight, b volume, c sugar content, and d protein content). In part (b), the standard error bars have been truncated for visual ease. The actual values are SE = −745.47 for both solitary and social males. Asterisk indicates significant differences in variance