Stone tools differences across three capuchin monkey populations: food’s physical properties, ecology, and culture

Abstract Robust capuchin monkeys (Sapajus) are known for processing mechanically challenging foods, having morphological adaptations to do so. However, several populations go beyond body limitations by using stone tools to expand their food range. Those populations use stones in a variety of ways, g...

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Main Authors: Tiago Falótico, Tatiane Valença, Michele P. Verderane, Mariana D. Fogaça
Format: Article
Language:English
Published: Nature Portfolio 2022-08-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-18661-3
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author Tiago Falótico
Tatiane Valença
Michele P. Verderane
Mariana D. Fogaça
author_facet Tiago Falótico
Tatiane Valença
Michele P. Verderane
Mariana D. Fogaça
author_sort Tiago Falótico
collection DOAJ
description Abstract Robust capuchin monkeys (Sapajus) are known for processing mechanically challenging foods, having morphological adaptations to do so. However, several populations go beyond body limitations by using stone tools to expand their food range. Those populations use stones in a variety of ways, goals, and with different frequencies. Stone tool size correlates with the food’s resistance within some populations. However, we have no detailed comparisons to identify if this correlation is the same across populations. This study described and compared stone raw material availability, food’s physical properties (hardness and elasticity), and stone tool weight in three populations of bearded capuchin monkeys (Sapajus libidinosus), including a newly described site (Chapada dos Veadeiros National Park, CVNP). The differences we observed regarding stone tool weight selection among sites were not correlated to the food’s physical properties we analyzed. Lithic resource availability could partly explain some differences in the stone tools used. However, the tool weight differences are larger than the raw material variance across sites, meaning some distinctions are possible behavioral traditions, such as the same fruit (Hymenaea) being processed with bigger than needed tools in CVNP than in the other two sites. Capuchin monkey behavioral variability in stone tool use can be caused by several interacting factors, from ecological to cultural.
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spelling doaj.art-9ae6b3856a7947cebb7b7afc8ae250b92022-12-22T02:15:59ZengNature PortfolioScientific Reports2045-23222022-08-0112111410.1038/s41598-022-18661-3Stone tools differences across three capuchin monkey populations: food’s physical properties, ecology, and cultureTiago Falótico0Tatiane Valença1Michele P. Verderane2Mariana D. Fogaça3School of Arts, Sciences and Humanities, University of São PauloSchool of Arts, Sciences and Humanities, University of São PauloNeotropical Primates Research GroupNeotropical Primates Research GroupAbstract Robust capuchin monkeys (Sapajus) are known for processing mechanically challenging foods, having morphological adaptations to do so. However, several populations go beyond body limitations by using stone tools to expand their food range. Those populations use stones in a variety of ways, goals, and with different frequencies. Stone tool size correlates with the food’s resistance within some populations. However, we have no detailed comparisons to identify if this correlation is the same across populations. This study described and compared stone raw material availability, food’s physical properties (hardness and elasticity), and stone tool weight in three populations of bearded capuchin monkeys (Sapajus libidinosus), including a newly described site (Chapada dos Veadeiros National Park, CVNP). The differences we observed regarding stone tool weight selection among sites were not correlated to the food’s physical properties we analyzed. Lithic resource availability could partly explain some differences in the stone tools used. However, the tool weight differences are larger than the raw material variance across sites, meaning some distinctions are possible behavioral traditions, such as the same fruit (Hymenaea) being processed with bigger than needed tools in CVNP than in the other two sites. Capuchin monkey behavioral variability in stone tool use can be caused by several interacting factors, from ecological to cultural.https://doi.org/10.1038/s41598-022-18661-3
spellingShingle Tiago Falótico
Tatiane Valença
Michele P. Verderane
Mariana D. Fogaça
Stone tools differences across three capuchin monkey populations: food’s physical properties, ecology, and culture
Scientific Reports
title Stone tools differences across three capuchin monkey populations: food’s physical properties, ecology, and culture
title_full Stone tools differences across three capuchin monkey populations: food’s physical properties, ecology, and culture
title_fullStr Stone tools differences across three capuchin monkey populations: food’s physical properties, ecology, and culture
title_full_unstemmed Stone tools differences across three capuchin monkey populations: food’s physical properties, ecology, and culture
title_short Stone tools differences across three capuchin monkey populations: food’s physical properties, ecology, and culture
title_sort stone tools differences across three capuchin monkey populations food s physical properties ecology and culture
url https://doi.org/10.1038/s41598-022-18661-3
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