Difference between the vocalizations of two sister species of pigeons explained in dynamical terms
Vocal communication is an unique example, where the nonlinear nature of the periphery can give rise to complex sounds even when driven by simple neural instructions. In this work we studied the case of two close-related bird species, Patagioenasmaculosa and Patagioenaspicazuro, whose vocalizations d...
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2016
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v202_n5_p361_Alonso http://hdl.handle.net/20.500.12110/paper_03407594_v202_n5_p361_Alonso |
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paper:paper_03407594_v202_n5_p361_Alonso2025-07-30T18:11:37Z Difference between the vocalizations of two sister species of pigeons explained in dynamical terms Kopuchian, Cecilia Amador, Ana Tubaro, Pablo Luis Asymmetry Biomechanics Birdsong Nonlinear dynamics Vocal control anatomy and histology animal biomechanics computer simulation male nonlinear system physiology pigeons and doves sound detection species difference theoretical model vibration vocalization Animals Biomechanical Phenomena Columbidae Computer Simulation Male Models, Theoretical Nonlinear Dynamics Sound Spectrography Species Specificity Vibration Vocalization, Animal Vocal communication is an unique example, where the nonlinear nature of the periphery can give rise to complex sounds even when driven by simple neural instructions. In this work we studied the case of two close-related bird species, Patagioenasmaculosa and Patagioenaspicazuro, whose vocalizations differ only in the timbre. The temporal modulation of the fundamental frequency is similar in both cases, differing only in the existence of sidebands around the fundamental frequency in the P. maculosa. We tested the hypothesis that the qualitative difference between these vocalizations lies in the nonlinear nature of the syrinx. In particular, we propose that the roughness of maculosa’s vocalizations is due to an asymmetry between the right and left vibratory membranes, whose nonlinear dynamics generate the sound. To test the hypothesis, we generated a biomechanical model for vocal production with an asymmetric parameter Q with which we can control the level of asymmetry between these membranes. Using this model we generated synthetic vocalizations with the principal acoustic features of both species. In addition, we confirmed the anatomical predictions by making post mortem inspection of the syrinxes, showing that the species with tonal song (picazuro) has a more symmetrical pair of membranes compared to maculosa. © 2016, Springer-Verlag Berlin Heidelberg. Fil:Kopuchian, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Amador, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tubaro, P.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v202_n5_p361_Alonso http://hdl.handle.net/20.500.12110/paper_03407594_v202_n5_p361_Alonso |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Asymmetry Biomechanics Birdsong Nonlinear dynamics Vocal control anatomy and histology animal biomechanics computer simulation male nonlinear system physiology pigeons and doves sound detection species difference theoretical model vibration vocalization Animals Biomechanical Phenomena Columbidae Computer Simulation Male Models, Theoretical Nonlinear Dynamics Sound Spectrography Species Specificity Vibration Vocalization, Animal |
| spellingShingle |
Asymmetry Biomechanics Birdsong Nonlinear dynamics Vocal control anatomy and histology animal biomechanics computer simulation male nonlinear system physiology pigeons and doves sound detection species difference theoretical model vibration vocalization Animals Biomechanical Phenomena Columbidae Computer Simulation Male Models, Theoretical Nonlinear Dynamics Sound Spectrography Species Specificity Vibration Vocalization, Animal Kopuchian, Cecilia Amador, Ana Tubaro, Pablo Luis Difference between the vocalizations of two sister species of pigeons explained in dynamical terms |
| topic_facet |
Asymmetry Biomechanics Birdsong Nonlinear dynamics Vocal control anatomy and histology animal biomechanics computer simulation male nonlinear system physiology pigeons and doves sound detection species difference theoretical model vibration vocalization Animals Biomechanical Phenomena Columbidae Computer Simulation Male Models, Theoretical Nonlinear Dynamics Sound Spectrography Species Specificity Vibration Vocalization, Animal |
| description |
Vocal communication is an unique example, where the nonlinear nature of the periphery can give rise to complex sounds even when driven by simple neural instructions. In this work we studied the case of two close-related bird species, Patagioenasmaculosa and Patagioenaspicazuro, whose vocalizations differ only in the timbre. The temporal modulation of the fundamental frequency is similar in both cases, differing only in the existence of sidebands around the fundamental frequency in the P. maculosa. We tested the hypothesis that the qualitative difference between these vocalizations lies in the nonlinear nature of the syrinx. In particular, we propose that the roughness of maculosa’s vocalizations is due to an asymmetry between the right and left vibratory membranes, whose nonlinear dynamics generate the sound. To test the hypothesis, we generated a biomechanical model for vocal production with an asymmetric parameter Q with which we can control the level of asymmetry between these membranes. Using this model we generated synthetic vocalizations with the principal acoustic features of both species. In addition, we confirmed the anatomical predictions by making post mortem inspection of the syrinxes, showing that the species with tonal song (picazuro) has a more symmetrical pair of membranes compared to maculosa. © 2016, Springer-Verlag Berlin Heidelberg. |
| author |
Kopuchian, Cecilia Amador, Ana Tubaro, Pablo Luis |
| author_facet |
Kopuchian, Cecilia Amador, Ana Tubaro, Pablo Luis |
| author_sort |
Kopuchian, Cecilia |
| title |
Difference between the vocalizations of two sister species of pigeons explained in dynamical terms |
| title_short |
Difference between the vocalizations of two sister species of pigeons explained in dynamical terms |
| title_full |
Difference between the vocalizations of two sister species of pigeons explained in dynamical terms |
| title_fullStr |
Difference between the vocalizations of two sister species of pigeons explained in dynamical terms |
| title_full_unstemmed |
Difference between the vocalizations of two sister species of pigeons explained in dynamical terms |
| title_sort |
difference between the vocalizations of two sister species of pigeons explained in dynamical terms |
| publishDate |
2016 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v202_n5_p361_Alonso http://hdl.handle.net/20.500.12110/paper_03407594_v202_n5_p361_Alonso |
| work_keys_str_mv |
AT kopuchiancecilia differencebetweenthevocalizationsoftwosisterspeciesofpigeonsexplainedindynamicalterms AT amadorana differencebetweenthevocalizationsoftwosisterspeciesofpigeonsexplainedindynamicalterms AT tubaropabloluis differencebetweenthevocalizationsoftwosisterspeciesofpigeonsexplainedindynamicalterms |
| _version_ |
1840323594281811968 |