The Evolution of Predator Resemblance in Avian Brood Parasites
The Evolution of Predator Resemblance in Avian Brood Parasites
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DOI：
10.3389/fevo.2021.725842
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发表时间：
2021-11
期刊：
影响因子：
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通讯作者：
J. York
中科院分区：
文献类型：
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作者：
J. York
捕食者对猎物行为有着深远的影响，一些成年寄生寄生虫利用捕食者的相似性来利用宿主的反捕食者防御。澄清宿主对此类刺激的感知对于理解成虫寄生寄生虫特征的适应性意义以及它们误导宿主的机制非常重要。在这里，我回顾了文献，以探索禽类寄生虫中捕食者相似性的适应性基础，以及宿主对这些刺激反应的自然变化。我还提供了一个关于捕食者相似性的信息生态学框架，该框架基于信号检测理论的原理，并借鉴了普通杜鹃（Cuculus canorus）作为研究最广泛的系统的经验证据。在这个物种中，视觉和听觉上的鹰式刺激可以有效地操纵宿主的防御。总体而言，宿主反应的对比表明，不同形式的信息可以对宿主产生独立的影响，并且捕食者的相似性利用了多种感觉和认知过程。宿主对这些刺激的感知以及它们以综合方式处理的程度，以及调节反应的生理过程，为巢寄生研究提供了新的途径。
Predators have profound effects on prey behavior and some adult brood parasites use predator resemblance to exploit the antipredator defenses of their hosts. Clarifying host perception of such stimuli is important for understanding the adaptive significance of adult brood parasite characteristics, and the mechanisms by which they misdirect hosts. Here I review the literature to explore the adaptive basis of predator resemblance in avian brood parasites, and natural variation in host responses to these stimuli. I also provide a framework for the information ecology of predator resemblance, which is based on the principles of signal detection theory and draws from empirical evidence from the common cuckoo, Cuculus canorus, as the most widely studied system. In this species, visual and acoustic hawk-like stimuli are effective in manipulating host defenses. Overall, contrasts across host responses suggest that different modalities of information can have independent effects on hosts, and that predator resemblance takes advantage of multiple sensory and cognitive processes. Host perception of these stimuli and the degree to which they are processed in an integrated manner, and the physiological processes underlying regulation of the responses, present new avenues for brood parasitism research.