Noise in Chemical Communication

Abstract

Chemical communication is ubiquitous. It is not only employed in interindividual communication, but also used to transfer information within individuals, from cell to cell and from one organ to another within a body with a complicated network of hormones and neurotransmitters. However, how noise affects chemical communication has been largely neglected. Here, we review possible sources of noise and the effects noise has on the behaviour of receivers. We will also discuss variation in chemical cues and signals that may provide information in some contexts, but obscure messages in others. Finally, we attempt to identify strategies that senders and receivers can follow to either reduce the occurrence or mitigate the effects of noise.