Animal Cognition

, Volume 16, Issue 1, pp 55–64 | Cite as

Social learning in juvenile lemon sharks, Negaprion brevirostris

  • Tristan L. Guttridge
  • Sander van Dijk
  • Eize J. Stamhuis
  • Jens Krause
  • Samuel H. Gruber
  • Culum Brown
Original Paper

Abstract

Social learning is taxonomically widespread and can provide distinct behavioural advantages, such as in finding food or avoiding predators more efficiently. Although extensively studied in bony fishes, no such empirical evidence exists for cartilaginous fishes. Our aim in this study was to experimentally investigate the social learning capabilities of juvenile lemon sharks, Negaprion brevirostris. We designed a novel food task, where sharks were required to enter a start zone and subsequently make physical contact with a target in order to receive a food reward. Naive sharks were then able to interact with and observe (a) pre-trained sharks, that is, ‘demonstrators’, or (b) sharks with no previous experience, that is, ‘sham demonstrators’. On completion, observer sharks were then isolated and tested individually in a similar task. During the exposure phase observers paired with ‘demonstrator’ sharks performed a greater number of task-related behaviours and made significantly more transitions from the start zone to the target, than observers paired with ‘sham demonstrators’. When tested in isolation, observers previously paired with ‘demonstrator’ sharks completed a greater number of trials and made contact with the target significantly more often than observers previously paired with ‘sham demonstrators’. Such experience also tended to result in faster overall task performance. These results indicate that juvenile lemon sharks, like numerous other animals, are capable of using socially derived information to learn about novel features in their environment. The results likely have important implications for behavioural processes, ecotourism and fisheries.

Keywords

Local and stimulus enhancement Group living Social facilitation Social information use Elasmobranchs 

Supplementary material

Supplementary material 1 (MPG 4684 kb)

Supplementary material 2 (MPG 9300 kb)

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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Tristan L. Guttridge
    • 1
    • 2
  • Sander van Dijk
    • 3
  • Eize J. Stamhuis
    • 3
  • Jens Krause
    • 4
  • Samuel H. Gruber
    • 5
    • 6
  • Culum Brown
    • 2
  1. 1.Institute for Integrative and Comparative BiologyUniversity of LeedsLeedsUK
  2. 2.Department of Biological SciencesMacquarie UniversitySydneyAustralia
  3. 3.Ocean EcosystemsUniversity of GroningenGroningenThe Netherlands
  4. 4.Department of Biology and Ecology of FishesLeibniz-Institute of Freshwater Ecology and Inland FisheriesBerlinGermany
  5. 5.Bimini Biological Field StationSouth BiminiBahamas
  6. 6.Division of Marine Biology and FisheriesRosenstiel School of Marine and Atmospheric ScienceMiamiUSA

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