Semiochemical
Biological signaling substance / From Wikipedia, the free encyclopedia
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A semiochemical, from the Greek σημεῖον (semeion), meaning "signal", is a chemical substance or mixture released by an organism that affects the behaviors of other individuals.[1] Semiochemical communication can be divided into two broad classes: communication between individuals of the same species (intraspecific) or communication between different species (interspecific).[2]
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It is usually used in the field of chemical ecology to encompass pheromones, allomones, kairomones, attractants and repellents.[1][3]
Many insects, including parasitic insects, use semiochemicals. Pheromones are intraspecific signals that aid in finding mates, food and habitat resources, warning of enemies, and avoiding competition. Interspecific signals known as allomones and kairomones have similar functions.[4]