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Title: Nasalization by Nasalis larvatus: Larger noses audiovisually advertise conspecifics in proboscis monkeys
Authors: Koda, Hiroki  kyouindb  KAKEN_id
Murai, Tadahiro
Tuuga, Augustine
Goossens, Benoit
Nathan, Senthilvel K.S.S.
Stark, Danica J.
Ramirez, Diana A. R.
Sha, John C. M.
Osman, Ismon
Sipangkui, Rosa
Seino, Satoru
Matsuda, Ikki
Author's alias: 香田, 啓貴
松田, 一希
Issue Date: 21-Feb-2018
Publisher: American Association for the Advancement of Science (AAAS)
Journal title: Science Advances
Volume: 4
Issue: 2
Thesis number: eaaq0250
Abstract: Male proboscis monkeys have uniquely enlarged noses that are prominent adornments, which may have evolved through their sexually competitive harem group social system. Nevertheless, the ecological roles of the signals encoded by enlarged noses remain unclear. We found significant correlations among nose, body, and testis sizes and a clear link between nose size and number of harem females. Therefore, there is evidence supporting both male-male competition and female choice as causal factors in the evolution of enlarged male noses. We also observed that nasal enlargement systematically modifies the resonance properties of male vocalizations, which probably encode male quality. Our results indicate that the audiovisual contributions of enlarged male noses serve as advertisements to females in their mate selection. This is the first primate research to evaluate the evolutionary processes involved in linking morphology, acoustics, and socioecology with unique masculine characteristics.
Description: 大きな鼻が男前? なぜテングザルの鼻は長いのか --生態・形態データからその進化のシナリオを初解明--. 京都大学プレスリリース. 2018-02-22.
Rights: © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
URI: http://hdl.handle.net/2433/229414
DOI(Published Version): 10.1126/sciadv.aaq0250
PubMed ID: 29507881
Related Link: http://www.kyoto-u.ac.jp/ja/research/research_results/2017/180222_2.html
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