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URL Address
<a href="http://doi.org/10.1016/j.jhevol.2016.07.005" target="_blank" rel="noreferrer noopener">http://doi.org/10.1016/j.jhevol.2016.07.005</a>
Pages
103–118
Volume
98
Dublin Core
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Title
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Primate dietary ecology in the context of food mechanical properties.
Publisher
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Journal of human evolution
Date
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2016
2016-09
Subject
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*Diet; *Feeding behavior; *Feeding Behavior; *Food Analysis; *Food mechanical properties; *Mastication; *Primate diet; *Toughness; *Young's modulus; Animals; Biomechanical Phenomena; Elastic Modulus; Female; Male; Primates/*physiology
Creator
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Coiner-Collier Susan; Scott Robert S; Chalk-Wilayto Janine; Cheyne Susan M; Constantino Paul; Dominy Nathaniel J; Elgart Alison A; Glowacka Halszka; Loyola Laura C; Ossi-Lupo Kerry; Raguet-Schofield Melissa; Talebi Mauricio G; Sala Enrico A; Sieradzy Pawel; Taylor Andrea B; Vinyard Christopher J; Wright Barth W; Yamashita Nayuta; Lucas Peter W; Vogel Erin R
Description
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Substantial variation exists in the mechanical properties of foods consumed by primate species. This variation is known to influence food selection and ingestion among non-human primates, yet no large-scale comparative study has examined the relationships between food mechanical properties and feeding strategies. Here, we present comparative data on the Young's modulus and fracture toughness of natural foods in the diets of 31 primate species. We use these data to examine the relationships between food mechanical properties and dietary quality, body mass, and feeding time. We also examine the relationship between food mechanical properties and categorical concepts of diet that are often used to infer food mechanical properties. We found that traditional dietary categories, such as folivory and frugivory, did not faithfully track food mechanical properties. Additionally, our estimate of dietary quality was not significantly correlated with either toughness or Young's modulus. We found a complex relationship among food mechanical properties, body mass, and feeding time, with a potential interaction between median toughness and body mass. The relationship between mean toughness and feeding time is straightforward: feeding time increases as toughness increases. However, when considering median toughness, the relationship with feeding time may depend upon body mass, such that smaller primates increase their feeding time in response to an increase in median dietary toughness, whereas larger primates may feed for shorter periods of time as toughness increases. Our results emphasize the need for additional studies quantifying the mechanical and chemical properties of primate diets so that they may be meaningfully compared to research on feeding behavior and jaw morphology.
Identifier
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<a href="http://doi.org/10.1016/j.jhevol.2016.07.005" target="_blank" rel="noreferrer noopener">10.1016/j.jhevol.2016.07.005</a>
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
*Diet
*Feeding behavior
*Food Analysis
*Food mechanical properties
*Mastication
*Primate diet
*Toughness
*Young's modulus
2016
Animals
Biomechanical Phenomena
Chalk-Wilayto Janine
Cheyne Susan M
Coiner-Collier Susan
Constantino Paul
Department of Family & Community Medicine
Dominy Nathaniel J
Elastic Modulus
Elgart Alison A
Female
Glowacka Halszka
Journal of human evolution
Loyola Laura C
Lucas Peter W
Male
NEOMED College of Medicine
Ossi-Lupo Kerry
Primates/*physiology
Raguet-Schofield Melissa
Sala Enrico A
Scott Robert S
Sieradzy Pawel
Talebi Mauricio G
Taylor Andrea B
Vinyard Christopher J
Vogel Erin R
Wright Barth W
Yamashita Nayuta