Haplodiploidy has important consequences that seem to affect social behavior. Here's a nice description form an online Animal Behavior textbook:
- If a queen mates only once, her daughters are highly related to each other (called supersisters), because the father's sperm are all identical.
- A female is more related to her sisters (on average, 75% similar) than she is to her own daughters (on average 50% similar).
- A female is more related to her son (50 % similar) than she is to a brother (on average, 25% similar).
- That all workers will be female (males have no special pattern of relatedness in a haplodiploid system that would make working advantageous to them
- That workers will help their mother to lay and rear females, but
- That workers would prefer to lay their own male offspring, rather than rear brothers