Aggressive displays
Definition
Aggressive displays are visual or auditory signals used by individuals to assert dominance, deter rivals, or establish territory. These behaviors can include physical postures, vocalizations, or other actions intended to intimidate.
5 Must Know Facts For Your Next Test
- Aggressive displays often serve to reduce actual physical confrontations by establishing social hierarchies without direct conflict.
- They can be influenced by both genetic and environmental factors, demonstrating the proximate and ultimate causes of behavior.
- In many species, males commonly use aggressive displays during mating seasons to compete for access to females.
- The effectiveness of an aggressive display can depend on the context and the receiver’s perception of the signaler's size, strength, or fitness.
- Examples of aggressive displays include the peacock's tail fanning, gorilla chest-beating, and bird song duels.
Review Questions
- How do aggressive displays contribute to reducing actual physical confrontations in animal populations?
- What are some examples of aggressive displays in different species?
- How do proximate and ultimate causes influence aggressive displays?
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Related terms
Dominance Hierarchy: A system of organization within a group where individuals are ranked relative to one another based on status or power
Territoriality: The defense of a bounded physical space against encroachment by other individuals
Mating Rituals: Behaviors exhibited by animals aimed at attracting mates and facilitating reproduction
