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Mechanical vibrations from tadpoles' flapping tails transform salamander's carnivorous morphology

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Title: Mechanical vibrations from tadpoles' flapping tails transform salamander's carnivorous morphology
Authors: Michimae, Hirofumi Browse this author →KAKEN DB
Nishimura, Kinya Browse this author
Wakahara, Masami Browse this author
Keywords: broad-headed morph
chemical cue
hydraulic vibration
phenotypic plasticity
sonic cue
Issue Date: Mar-2005
Publisher: Royal Society Publishing
Journal Title: Biology Letters
Volume: 1
Issue: 1
Start Page: 75
End Page: 77
Publisher DOI: 10.1098/rsbl.2004.0242
Abstract: Some prey or predator organisms exhibit striking rapid morphological plastic changes with distinct morphology under the condition of predator or prey presence. Remote chemicals propagating from the inducing agents are the prevalent induction cues for most examples of induction of distinct morphs. Sonic and visual cues, as well as chemical cues, are known as triggers for induction of behavioural plasticity. Here we show that hydraulic vibration originating from flapping tails of anuran tadpoles is a key cue in relation to induction of a distinct carnivorous morphology, a broad-headed morph, in larval salamander Hynobius retardatus, which is able to efficiently capture and handle prey. This result was further supported by the fact that simple mechanical vibrations of tail-like vinyl fins were able to induce the morph without any biological cues. Induction of the morph triggered by hydraulic vibration provides a novel concept for understanding the proximate mechanisms of induction of morphological changes.
Type: article (author version)
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 道前 洋史

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