Startle displays: a new route to resolving the aposematism paradox

惊吓展示：解决警戒悖论的新途径

• 批准号: DE180100026
• 负责人: Dr Kate Umbers
• 金额: $ 24.47万
• 依托单位: Western Sydney University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-11-04 至 2023-06-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE180100026
• 关键词: Startle; displays; new; route; resolving

This project aims to propose an empirical evaluation of startle displays as the ‘missing link’ in antipredator defences. The evolutionary origin of warning colouration is considered paradoxical in that conspicuous mutant prey should be attacked and killed as they evolve, denying predators any chance to learn to avoid them. Startle displays, however, are antipredator defences that exploit predator reflexes through a sudden transition from camouflage to warning colouration. This work merges theory on antipredator defences, deepens knowledge of their fitness costs and benefits, and provides a new resolution to a classic evolutionary paradox.

该项目旨在提出对惊吓显示的经验评估，作为反植物防御中的“缺失链接”。警告颜色的进化起源被认为是自相矛盾的，因为显着的突变猎物应随着进化而受到攻击和杀死，否认掠食者有任何学会避免它们的机会。然而，惊叹的表现是抗腹部防御能力，通过从伪装到警告颜色的突然过渡来利用捕食者的反射。这项工作将理论融合了抗逆客防御，加深了对其健身成本和收益的了解，并为经典的进化悖论提供了新的解决方案。