Signals

Definition

Signals are behaviors or physical traits that convey information to other organisms, often influencing their actions. In biology, signals play a crucial role in communication within and between species.

5 Must Know Facts For Your Next Test

1. Signals can be visual, auditory, chemical, or tactile.
2. They are essential for mating rituals, territory defense, and coordinating group activities.
3. Honest signaling theory suggests that signals are generally reliable indicators of an individual's fitness.
4. Some organisms use deceptive signals to mislead others for survival or reproductive advantages.
5. Signal reception and interpretation depend on the sensory capabilities of the receiving organism.

Review Questions

• What are the four main types of signals used by organisms?
• How does honest signaling theory relate to the reliability of signals?
• Why might an organism use deceptive signals?

Related terms

Communication: The process by which one organism conveys information to another through signals or behaviors

Mating Rituals: Behaviors performed by individuals to attract mates and facilitate reproduction

Sensory Capabilities: The ability of an organism's sensory organs to detect and interpret various types of environmental stimuli