Rapid evolution of the primate larynx?

Bowling, Daniel L. and Dunn, Jacob and Smaers, Jeroen B. and Garcia, Maxime and Sato, Asha and Hantke, Georg and Handschuh, Stephan and Dengg, Sabine and Kerney, Max and Kitchener, Andrew C. and Gumpenberger, Michaela and Fitch, W. Tecumseh (2020) Rapid evolution of the primate larynx? PLOS Biology, 18 (8). e3000764. ISSN 1545-7885

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Official URL: https://doi.org/10.1371/journal.pbio.3000764

Abstract

Tissue vibrations in the larynx produce most sounds that comprise vocal communication in mammals. Larynx morphology is thus predicted to be a key target for selection, particularly in species with highly developed vocal communication systems. Here, we present a novel database of digitally modeled scanned larynges from 55 different mammalian species, representing a wide range of body sizes in the primate and carnivoran orders. Using phylogenetic comparative methods, we demonstrate that the primate larynx has evolved more rapidly than the carnivoran larynx, resulting in a pattern of larger size and increased deviation from expected allometry with body size. These results imply fundamental differences between primates and carnivorans in the balance of selective forces that constrain larynx size and highlight an evolutionary flexibility in primates that may help explain why we have developed complex and diverse uses of the vocal organ for communication.

Item Type: Journal Article
Keywords: Larynx, Primates, Carnivora, Animal phylogenetics, Physiological parameters, Cartilage, Evolutionary rate, Vocalization
Faculty: Faculty of Science & Engineering
SWORD Depositor: Symplectic User
Depositing User: Symplectic User
Date Deposited: 13 Aug 2020 14:34
Last Modified: 11 Jun 2021 13:56
URI: https://arro.anglia.ac.uk/id/eprint/705742

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