How minute sooglossid frogs hear without a middle ear

Boistel R.; Aubin T.; Cloetens P.Peyrin F.Scotti T.Herzog P.Gerlach J.Pollet N.Aubry J.-F.

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How minute sooglossid frogs hear without a middle ear

机译：How minute sooglossid frogs hear without a middle ear

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Acoustic communication is widespread in animals. According to the sensory drive hypothesis Endler JA (1993) Philos Trans R Soc Lond B Biol Sci 340(1292):215-225, communication signals and perceptual systems have coevolved. A clear illustration of this is the evolution of the tetrapod middle ear, adapted to life on land. Here we report the discovery of a bone conduction-mediated stimulation of the ear by wave propagation in Sechellophryne gardineri, one of the world's smallest terrestrial tetrapods, which lacks a middle ear yet produces acoustic signals. Based on X-ray synchrotron holotomography, we measured the biomechanical properties of the otic tissues and modeled the acoustic propagation. Our models show how bone conduction enhanced by the resonating role of the mouth allows these seemingly deaf frogs to communicate effectively without a middle ear.

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《Proceedings of the National Academy of Sciences of the United States of America》 |2013年第38期|15360-15364|共5页
作者
Boistel R.; Aubin T.; Cloetens P.Peyrin F.Scotti T.Herzog P.Gerlach J.Pollet N.Aubry J.-F.;
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作者单位

Centre de Neurosciences Paris-Sud (CNPS), Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Recherche (UMR) 8195, Université Paris XI, 91405 Orsay, France;

European Synchrotron Radiation Facility, 38043 Grenoble, France;

Laboratoire de Mécanique et d'Acoustique (LMA), CNRS UPR 7051, 13402 Marseille, FranceNature Protection Trust of Seychelles, VIC, Mahé, SeychellesInstitute of Systems and Synthetic Biology, Genopole, Université d'Evry Val d'Essonne, F-91058 Evry, FranceInstitut Langevin, CNRS UMR 7587, école Supérieure de Physique et de Chimie Industrielles de la Ville de Paris ParisTech, 75005 Paris, France;

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收录信息美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类自然科学总论;
关键词
Audition; Earless frog; Extra-tympanic pathways; X-ray imaging;

How minute sooglossid frogs hear without a middle ear

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