Effects of reward magnitude and training frequency on the learning rates and memory retention of the Port Jackson shark Heterodontus portusjacksoni

  title={Effects of reward magnitude and training frequency on the learning rates and memory retention of the Port Jackson shark Heterodontus portusjacksoni},
  author={Dennis D. U. Heinrich and Catarina Vila Pouca and Culum Brown and Charlie Huveneers},
  journal={Animal Cognition},
  pages={939 - 949}
The development of adaptive responses to novel situations via learning has been demonstrated in a wide variety of animal taxa. However, knowledge on the learning abilities of one of the oldest extant vertebrate groups, Chondrichthyes, remains limited. With the increasing interest in global wildlife tourism and shark feeding operations, it is important to understand the capacities of these animals to form associations between human activities and food. We used an operant conditioning regime with… Expand
Effects of Food Provisioning on the Daily Ration and Dive Site Use of Great Hammerhead Sharks, Sphyrna mokarran
Wildlife provisioning is popular, economically valuable, and a rapidly growing part of marine tourism, with great potential to benefit conservation. However, it remains controversial due to limitedExpand
Social learning in solitary juvenile sharks
Social learning can be a shortcut for acquiring locally adaptive information. Animals that live in social groups have better access to social information, but gregarious and nonsocial species areExpand


Emerging challenges to shark-diving tourism
Abstract Shark-diving tourism has become a global phenomenon and is widely promoted to contribute to pro-conservation attitudes by dispelling myths and exposing tourists to sharks in their naturalExpand
Emerging challenges to sharkdiving tourism
  • Mar Policy
  • 2018
R: A language and environment for statistical computing.
Copyright (©) 1999–2012 R Foundation for Statistical Computing. Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission noticeExpand
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AbstractSharks have a key position in the ocean food chain and their removal could have far-reaching implications beyond the species themselves. Yet since the 1980s the harvesting of sharks,Expand
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Costs of group-living for a normally solitary forager: effects of provisioning tourism on southern stingrays Dasyatis americana
It is suggested that novel grouping poses costs to the stingrays; the tourist site represents a riskier habitat with regards to injury and predation; and there may be long-term fitness consequences. Expand
Homing ability of young lemon sharks, Negaprion brevirostris
SynopsisWe carried out the first experimental study testing an elasmobranch’s ability to return home. We displaced juvenile lemon sharks,Negaprion brevirostris, 4–16 km from their observed homeExpand
Effect of schedule and magnitude of reinforcement on instrumental learning in the toad, Bufo arenarum
Abstract Extinction after training with continuous (CR) or 50% partial (PR) reinforcement, and with different magnitudes of reward, was studied in the amphibian Bufo arenarum , in a runway situation.Expand