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Prevalence of tool behaviour is associated with pelage phenotype in intraspecific hybrid long-tailed macaques (Macaca fascicularis aurea × M. f. fascicularis).

Gumert, Michael D. and Tan, Amanda Wei Yi and Luncz, Lydia V. and Chua, Constance Ting and Kulik, Lars and Switzer, Adam D. and Haslam, Michael and Iriki, Atsushi and Malaivijitnond, Suchinda (2019) 'Prevalence of tool behaviour is associated with pelage phenotype in intraspecific hybrid long-tailed macaques (Macaca fascicularis aurea × M. f. fascicularis).', Behaviour, 156 (11). pp. 1083-1125.

Abstract

Stone-hammering behaviour customarily occurs in Burmese long-tailed macaques, Macaca fascicularis aurea, and in some Burmese-common longtail hybrids, M. f. aurea × M. f. fascicularis; however, it is not observed in common longtails. Facial pelage discriminates these subspecies, and hybrids express variable patterns. It was tested if stone hammering related to facial pelage in 48 hybrid longtails, across two phenotypes — hybrid-like (N=19 ) and common-like (N=29 ). In both phenotypes, tool users showed similar frequency and proficiency of stone hammering; however, common-like phenotypes showed significantly fewer tool users (42%) than hybrid-like phenotypes (76%). 111 Burmese longtails showed the highest prevalence of tool users (88%). Hybrid longtails living together in a shared social and ecological environment showed a significant difference in tool user prevalence based on facial pelage phenotype. This is consistent with inherited factors accounting for the difference, and thus could indicate Burmese longtails carry developmental biases for their tool behaviour.

Item Type:Article
Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution Non-commercial.
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Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution Non-commercial.
Download PDF
(2437Kb)
Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1163/1568539X-00003557
Publisher statement:© The authors, 2019. DOI 10.1163/1568539X-00003557 This is an open access article distributed under the terms of the prevailing CC-BY-NC license at the time of publication.
Date accepted:28 March 2019
Date deposited:22 May 2019
Date of first online publication:04 July 2019
Date first made open access:No date available

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