From the greek “to bear”
secreted or excreted chemical factor that triggers a social response in members of the same species.
capable of acting outside the body of the secreting individual to impact the behavior of the receiving individual
Types of pheromones:
- aggregation – pheromones released by certain animals or insects that function in defense against predators, mate selection, and overcoming host resistance by mass attack.
- alarm – pheromones released by certain species as volatile substances during attack or aggression
- signal – pheromones triggering short-term change in neurotransmitter release
- primer – pheromones trigger a change in developmental stage of an animal or insect
- trail – pheromones used to mark a path, common in social insects such as ants (see picture above)
- information – pheromones indicative an animal’s identity or territory.
- sex – pheromones used in attraction of a mate