Convergence of calls as animals form social bonds, active compensation for noisy communication channels, and the evolution of vocal learning in mammals

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98 Citations (Scopus)

Abstract

The classic evidence for vocal production learning involves imitation of novel. often anthropogenic sounds. Among mammals, this has been reported for dolphins, elephants, harbor seals, and humans. A broader taxonomic distribution has been reported for vocal convergence, where the acoustic properties of calls from different individuals converge when they are housed together in captivity or form social bonds in the wild. Vocal convergence has been demonstrated for animals as diverse as songbirds, parakeets. hummingbirds, bats, elephants. cetaceans, and primates. For most species, call convergence is thought to reflect a group-distinctive identifier, with shared calls reflecting and strengthening social bonds. A ubiquitous function for vocal production learning that is starting to receive attention involves modifying signals to improve communication in a noisy channel. Pooling data on vocal imitation, vocal convergence, and compensation for noise suggests a wider taxonomic distribution of vocal production learning among mammals than has been generally appreciated. The wide taxonomic distribution of this evidence for vocal production learning suggests that perhaps more of the neural underpinnings for vocal production learning are in place in mammals than is usually recognized.

Original languageEnglish
Pages (from-to)319-331
Number of pages13
JournalJournal of Comparative Psychology
Volume122
Issue number3
DOIs
Publication statusPublished - Aug 2008

Keywords

  • vocal learning
  • vocal production learning
  • vocal convergence
  • noise compensation
  • RESIDENT KILLER WHALES
  • SPEAR-NOSED BATS
  • BUDGERIGARS MELOPSITTACUS-UNDULATUS
  • DOPPLER-SHIFT COMPENSATION
  • PACIFIC SPERM-WHALES
  • ORCINUS-ORCA
  • TURSIOPS-TRUNCATUS
  • SIGNATURE WHISTLES
  • WILD CHIMPANZEES
  • ELEPHANT SEALS

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