Furthermore, predators adjusted their swimming direction more often when hunting larger whitefish compared to smaller whitefish. A multivariate logistic regression identified that slow average speed and acceleration of the prey in the initial stages of the hunt increased the probability of stickleback success. whitefish larvae, were hunted using a direct but stealthy approach ending in a lunge, while the behaviourally more complex roach and perch larvae were hunted with a faster approach. Prey with less complex predator escape responses, i. 3D track analysis indicated that sticklebacks applied different strategies. ![]() 75 predator-prey interactions including both failed and successful hunts were subject to the analysis. Trials were carried out for each prey species at four different size classes in a standardised laboratory setup and were recorded using a slow motion, stereo camera setup. ![]() The purpose of the current study was to identify the behavioural predator-prey interactions explaining the success or failure of sticklebacks hunting larvae of three potential prey species in a 3D environment. It has recently been shown that the hunting success of sticklebacks ( Gasterosteus aculeatus) targeting fish larvae is dependent on both the size of the prey and the prior exposure of its species to stickleback predation. Predator-prey interactions play a key life history role, as animals cope with changing predation risk and opportunities to hunt prey.
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