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首页> 外文期刊>Behavioral Ecology and Sociobiology >Risk level of chemical cues determines retention of recognition of new predators in Iberian green frog tadpoles
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Risk level of chemical cues determines retention of recognition of new predators in Iberian green frog tadpoles

机译：化学提示的风险水平决定了伊比利亚绿蛙t中新捕食者的识别能力

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摘要

In aquatic environments, many prey rely on chemosensory information from injured (alarm cues) or stressed conspecifics (disturbance cues) to assess predation risk. Alarm cues are considered as a sign of higher risk than disturbance cues. These cues could be used by prey to learn potential new predators. In this study, we tested whether Iberian green frog tadpoles (Pelophylax perezi) exhibited antipredator responses to alarm and disturbance cues of conspecifics and whether tadpoles could associate new predators with alarm or disturbance cues. Tadpoles reduced their activity in the presence of disturbance cues, but only weakly when compared with their response to alarm cues. Also, tadpoles learned to recognize new predators from association with alarm or disturbance cues. However, the period of retention of the learned association was shorter for disturbance than alarm cues. Our results indicate that tadpoles are able to modify their antipredatory behavior according to (1) the degree of risk implied by the experimental cues (2) their previous experience of chemical cues of the predator.
机译：在水生环境中，许多猎物依靠来自受伤（警报线索）或压力过大的物种（干扰线索）的化学感应信息来评估捕食风险。警报提示被认为比干扰提示具有更高的风险迹象。猎物可以使用这些提示来学习潜在的新捕食者。在这项研究中，我们测试了伊比利亚绿蛙t（Pelophylax perezi）是否对特定物种的警报和干扰线索表现出反捕食者反应，以及t是否可以将新的捕食者与警报或干扰线索联系起来。 of在有干扰提示的情况下会降低其活动能力，但与警报提示的响应相比，only的作用很小。而且，t学会了通过与警报或干扰提示相关联来识别新的捕食者。但是，对于干扰而言，学习到的联想的保留时间短于警报提示。我们的结果表明，t能够根据（1）实验提示所隐含的风险程度（2）先前对捕食者的化学提示的经验来改变t的抗掠食行为。

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