CONICET | Buscador de Institutos y Recursos Humanos

In insects, olfaction plays a crucial role in many behavioral contexts, suchas locating food, sexual partners, and oviposition sites. To successfully performsuch behaviors, insects must respond to chemical stimuli at the rightmoment. Insects modulate their olfactory system according to their physiologicalstate upon interaction with their environment. Here, we reviewthe plasticity of behavioral responses to different odor types according toage, feeding state, circadian rhythm, and mating status. We also summarizewhat is known about the underlying neural and endocrinological mechanisms,from peripheral detection to central nervous integration, and coverneuromodulation from the molecular to the behavioral level. We describeforms of olfactory plasticity that have contributed to the evolutionary successof insects and have provided them with remarkable tools to adapt to theirever-changing environment.