Multimodal mother–offspring recognition

the relative importance of sensory cues in a colonial mammal

Kaja Wierucka*, Benjamin J. Pitcher, Robert Harcourt, Isabelle Charrier

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Animals often employ multiple sensory modalities for communication and recognition; however, the combination of sensory cues used by individuals in given contexts will vary. Although mother–offspring recognition has been widely investigated and is known to be a multimodal process in gregarious mammal species, there is a dearth of information about the interactions between various sensory cues. Here we show how acoustic, olfactory and visual cues are used in a synergistic way in Australian sea lion, Neophoca cinerea, mother–offspring recognition. We interpret the results using a cost–benefit perspective to disentangle the evolutionary pressures on each component of this communication system. Although olfactory cues can convey individual identity information it was their presence, not their congruency, that prompted female sniffs. We found that calls needed to be from the female's own pup for the identification process to be successful, with the information encoded in acoustic cues overriding that of olfactory cues. Despite each sensory cue accurately conveying identity information when presented in isolation, in a multimodal setting their importance, function or role may change and seems to be driven by the costs and benefits of obtaining information resulting from the constraints imposed by the active space of cues.

Original languageEnglish
Pages (from-to)135-142
Number of pages8
JournalAnimal Behaviour
Volume146
DOIs
Publication statusPublished - Dec 2018

Keywords

  • individual recognition
  • maternal behaviour
  • mother–offspring cues
  • multimodal communication
  • pinniped
  • sensory channels

Fingerprint Dive into the research topics of 'Multimodal mother–offspring recognition: the relative importance of sensory cues in a colonial mammal'. Together they form a unique fingerprint.

  • Cite this