长期以来,科学界普遍认为鸟类主要是通过视觉和听觉来进行交流的,在嗅觉社交功能方面就被忽视了。然而,有科学家对小型海鸟凤头海雀的研究,彻底打破了这一偏见!这种生活在北太平洋、拥有夸张冠羽和荧光鸟喙的海鸟,身上会散发出奇特的柑橘香味,而且这种气味在繁殖季会浓度激增。它们还有独特的“翎颌嗅”行为:求偶时,它们会将喙深埋伴侣后颈——气味最浓郁处,形成一场独特的“闻香识伴侣”仪式。科学家通过精密的化学分析确定了气味成分,并用巧妙的“T型迷宫”实验证实:凤头海雀不仅喜欢同类自身的气味和人工合成的同款“香水”,还能避开不喜欢的味道(如麝香),首次为鸟类中存在真正的社交气味信号提供了强有力证据。这并非孤例。戴胜用恶臭粘液防御天敌和护蛋,麝雉因独特的发酵消化系统被称为“会飞的牛”并散发牛粪味,鸮面鹦鹉也有明显独特气味。这些发现揭示了一个被长期忽视的感官世界。嗅觉通讯在鸟类社会行为(如配偶选择、亲缘识别、巢区标记)中的作用远超想象。加拿大专家伊恩·琼斯感叹:“自然界总是比我们想象的更奇妙。”凤头海雀等“香水鸟”的发现,也正在引领我们重新认识鸟类如何感知和沟通这个世界。凤头海雀 - 冠羽,荧光喙板和珠光白色虹膜凤头海雀在闻香T型迷宫实验褐头牛鹂成年麝雉麝雉幼鸟翅膀上的小爪子鸮面鹦鹉参考文献:Hagelin, J.C. The citrus-like scent of crested auklets: reviewing the evidence for an avian olfactory ornament. J Ornithol 148 (Suppl 2), 195–201 (2007).| DOI:10.1007/s10336-007-0185-6A tangerine-scented social odour in a monogamous seabirdJulie C. Hagelin, Ian L. Jones and L. E. L. Rasmussen Published:07 July 2003 |DOI:10.1098/rspb.2003.2379Crested Auklets Current Biology Volume33 Issue 22 Ian L. Jones1 ∙ Bruce E. Lyon| DOI: 10.1016/j.cub.2023.10.004
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