Something smells fishy: predator-na´ve salmon use diet cues, not kairomones, to recognize a sympatric mammalian predator

Publication year: 2011
Source: Animal Behaviour, In Press, Corrected Proof, Available online 31 July 2011</br>
Laura Jayne, Roberts , Carlos, Garcia de Leaniz</br>
The ability to recognize predators is one of the most important lines of defence in a preyĺs arsenal, but the detection of novel predators poses a particular challenge. Novel predators provide few or no visual cues to inexperienced prey, which may have to rely on complementary chemical mechanisms to identify predators and survive the first encounters. We examined the role of diet-released chemical cues in facilitating predator recognition and promoting antipredator responses in predator-na´ve juvenile Atlantic salmon, Salmo salar, presented with blank water or with diet cues from a common sympatric predator (the Eurasian otter, Lutra lutra) fed either salmon...</br>

31st July 2011 21:24

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