Pheromones

Definition

Pheromones are chemical substances produced and released by animals to communicate with others of the same species. They play crucial roles in behaviors such as mating, foraging, and social organization.

5 Must Know Facts For Your Next Test

1. Pheromones are essential for communication among many arthropods, including insects like ants and bees.
2. There are different types of pheromones including alarm pheromones, sex pheromones, and trail pheromones.
3. Pheromone reception is often mediated by specialized sensory organs such as antennae in insects.
4. They can influence a wide range of behaviors from attracting mates to marking territory.
5. In some species, pheromones can even trigger developmental changes or physiological responses.

Review Questions

• What are the primary functions of pheromones in arthropods?
• Name three types of pheromones and their specific roles.
• How do arthropods typically detect pheromones?

Related terms

Ecdysis: The process of molting or shedding an outer layer, commonly seen in arthropods.

Sensilla: Tiny sensory organs found on the exoskeletons of arthropods used to detect environmental stimuli.

Exoskeleton: A rigid external covering that provides both support and protection to arthropods.