How do dominance hierarchies affect the benefits of group living?

Dominance hierarchies significantly influence the cost-benefit balance of group living by regulating how individuals compete for resources and mates.12

Benefits of Hierarchies

The primary advantage of a clear dominance hierarchy is the reduction of frequent, dangerous, and energetically costly physical fighting. By establishing rank, groups can resolve conflicts through displays or submissive behaviors rather than direct aggression, allowing for smoother social interactions. For dominant individuals, these hierarchies provide prioritized access to high-quality resources, breeding spaces, and mating opportunities, which can enhance their reproductive success and survival.1

Impact on Subordinates

For subordinates, the benefits of group living are often diminished because dominant members monopolize resources more effectively. However, subordinates may still derive value from remaining in the group if the alternatives—such as becoming solitary or attempting to join a new group—are more costly or less likely to succeed. Subordinates often employ alternative strategies, such as "sneaky" mating tactics or mimicking dominant individuals, to circumvent status constraints and achieve fitness benefits. Ultimately, for social behavior to persist, even low-ranking individuals must gain more from group membership than they would by attempting to survive independently.21