出典:Wikipedia
出典:『Wikipedia』 (2011/06/28 16:47 UTC 版)
A dominance hierarchy (in humans: social hierarchy) is the organization of individuals in a group that occurs when competition for resources leads to aggression. Schjelderup-Ebbe, who studied the often-cited example of the pecking order in chickens, found that such social structures lead to more stable flocks with reduced aggression among individuals.