Complex signal function: developing a framework of testable hypotheses

  title={Complex signal function: developing a framework of testable hypotheses},
  author={Eileen A. Hebets and Daniel R. Papaj},
  journal={Behavioral Ecology and Sociobiology},
The basic building blocks of communication are signals, assembled in various sequences and combinations, and used in virtually all inter- and intra-specific interactions. While signal evolution has long been a focus of study, there has been a recent resurgence of interest and research in the complexity of animal displays. Much past research on signal evolution has focused on sensory specialists, or on single signals in isolation, but many animal displays involve complex signaling, or the… 
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