Sender and receiver experience alters the response of fish to disturbance cues
Sender and receiver experience alters the response of fish to disturbance cues
复制标题
发送者和接收者的经验改变了鱼对干扰信号的反应
作者：
Jack A. Goldman;Laurence E A Feyten;I. Ramnarine;Grant E. Brown
摘要捕食是一种普遍存在的选择压力，它塑造了被捕食物种的形态、生理和行为表型。最近的研究已经开始研究如何个人经验的影响与捕食风险形状的使用公开的风险评估线索。在这里，我们调查了干扰线索生产和使用特立尼达孔雀鱼Poecilia reticulata在实验室条件下，先前的捕食风险经验的影响。在我们的第一个实验中，我们证明了孔雀鱼从高捕食人口（Lopinot河）的反应是依赖于干扰线索的来源（高与低捕食人口）。然而，孔雀鱼收集低捕食网站（上阿里波河）表现出类似的反应，干扰线索，无论发送人口。在我们的第二个实验中，我们使用实验室品系孔雀鱼暴露于高与低背景风险条件。我们的结果显示了与第一个实验类似的反应模式。暴露于高背景风险条件下的孔雀鱼表现出更强的反应，从暴露于高（与低）风险条件下的孔雀鱼收集的干扰线索，暴露于低风险条件下的孔雀鱼不受发送者的经验。结合，我们的研究结果表明，背景捕食风险的经验显着影响孔雀鱼的生产和干扰线索的反应。
Abstract Predation is a pervasive selection pressure, shaping morphological, physiological, and behavioral phenotypes of prey species. Recent studies have begun to examine how the effects of individual experience with predation risk shapes the use of publicly available risk assessment cues. Here, we investigated the effects of prior predation risk experience on disturbance cue production and use by Trinidadian guppies Poecilia reticulata under laboratory conditions. In our first experiment, we demonstrate that the response of guppies from a high predation population (Lopinot River) was dependent upon the source of disturbance cue senders (high vs. low predation populations). However, guppies collected from a low predation site (Upper Aripo River) exhibited similar responses to disturbance cues, regardless of the sender population. In our second experiment, we used laboratory strain guppies exposed to high versus low background risk conditions. Our results show an analogous response patterns as shown for our first experiment. Guppies exposed to high background risk conditions exhibited stronger responses to the disturbance cues collected from senders exposed to high (vs. low) risk conditions and guppies exposed to low risk conditions were not influenced by sender experience. Combined, our results suggest that experience with background predation risk significantly impacts both the production of and response to disturbance cues in guppies.