Nonlinear pressure depended frequency-body mass scaling rule for animal communication

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Journal of Nanjing University(Natural Sciences) ›› 2015, Vol. 51 ›› Issue (7) : 112.

Yang Shuai¹, Zhang Yu¹*，Wang Ruiqing²

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Abstract

Natural selection and evolution make different animals employ widely different frequencies for their sound communication, animals choose the optimal frequency according to their own conditions and the best sound propagation distance. In this paper, considering the nonlinear relationship between the frequency and subglottal pressure, adopting excised larynx experimental and passive biosonar theory to optimize the phonation frequency scaling rule. Both the linear fitting method and nonlinear fitting method, respectively, are used to fit the fundamental frequency f under subglottal pressure P from 10 cmH₂O to 31cmH₂O (R²=0.98), and from 10cmH₂O to 49cmH₂O (R²=0.99). The optimal frequency is inversely proportional to 0.67 power of the animal’s body mass.

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Yang Shuai¹, Zhang Yu¹*，Wang Ruiqing². Nonlinear pressure depended frequency-body mass scaling rule for animal communication[J]. Journal of Nanjing University(Natural Sciences), 2015, 51(7): 112

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