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  Analysis of sea almond (Terminalia catappa) cracking sites used by wild Burmese long-tailed macaques (Macaca fascicularis aurea)

Falótico, T., Spagnoletti, N., Haslam, M., Luncz, L. V., Malaivijitnond, S., & Gumert, M. (2017). Analysis of sea almond (Terminalia catappa) cracking sites used by wild Burmese long-tailed macaques (Macaca fascicularis aurea). American Journal of Primatology, 79(5): e22629. doi:10.1002/ajp.22629.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-A5D5-E Version Permalink: http://hdl.handle.net/21.11116/0000-0007-A5D6-D
Genre: Journal Article

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 Creators:
Falótico, Tiago, Author
Spagnoletti, Noemi, Author
Haslam, Michael, Author
Luncz, Lydia V.1, Author              
Malaivijitnond, Suchinda, Author
Gumert, Michael, Author
Affiliations:
1External Organizations, ou_persistent22              

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Free keywords: long-tailed macaque, nut-cracking, stone hammer, stone tool use
 Abstract: Nut-cracking is shared by all non-human primate taxa that are known to habitually use percussive stone tools in the wild: robust capuchins (Sapajus spp.), western chimpanzees (Pan troglodytes verus), and Burmese long-tailed macaques (Macaca fascicularis aurea). Despite opportunistically processing nuts, Burmese long-tailed macaques predominantly use stone tools to process mollusks in coastal environments. Here, we present the first comprehensive survey of sea almond (Terminalia catappa) nut-cracking sites created by macaques. We mapped T. catappa trees and nut-cracking sites that we encountered along the intertidal zone and forest border on the coasts of Piak Nam Yai Island, Thailand. For each nut-cracking site, we measured the physical properties (i.e., size, weight, use-wear) of hammer stones and anvils. We found that T. catappa trees and nut-cracking sites primarily occurred on the western coast facing the open sea, and cracking sites clusters around the trees. We confirmed previous results that nut cracking tools are among the heaviest tools used by long-tailed macaques; however, we found our sample of T. catappa stone tools lighter than a previously collected sea almond sample that, unlike our sample, was collected immediately after use within the intertidal zone. The difference was likely the result of tidal influences on tool-use sites. We also found that tool accumulations above the intertidal region do not resemble those within them, possibly leading to incomplete assessments of macaque stone tools through archaeological techniques that would use these durable sites.

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Language(s): eng - English
 Dates: 2017-05
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/ajp.22629
 Degree: -

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Title: American Journal of Primatology
Source Genre: Journal
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Publ. Info: John Wiley & Sons, Ltd
Pages: - Volume / Issue: 79 (5) Sequence Number: e22629 Start / End Page: - Identifier: ISBN: 0275-2565