courtship displays

Definition

Ritualized, species-specific behaviors, visual signals, acoustic emissions, or chemical releases performed by one sex (typically males) to attract, stimulate, and evaluate potential mates. In arthropods, displays often involve coordinated movements of antennae, wings, legs, or specialized appendages; substrate-borne vibrations; pheromonal trails; or bioluminescent flashes. Displays function in mate recognition, quality advertisement, and prezygotic isolation, with form and intensity shaped by sexual selection and predator avoidance trade-offs.

Etymology

courtship (behavioral pursuit of a mate) + display (exhibition of signals), early 20th century adoption into ethology

Example

Male jumping spiders (Salticidae) perform elaborate visual displays combining leg-waving, palp movements, and abdominal postures directed at females; in some species, failure to execute the correct sequence triggers immediate predatory attack rather than mating.

Synonyms

• mating displays
• nuptial displays

Related Terms

• Lek
• Sexual selection
• mate choice
• Spermatophore
• stridulation
• Bioluminescence
• agonistic behavior
• precopulatory behavior

Usage Notes

Distinguish from copulatory behavior (post-acceptance) and from general aggregation or territorial signaling; 'display' implies receiver-directed advertisement rather than broadcast signaling. Some authors restrict 'courtship' to pre-acceptance phases, while others include mate-guarding and post-copulatory rituals. In acoustically communicating insects (e.g., crickets, cicadas), 'calling' and 'courtship song' are often distinguished by context and structure.