1
40
17
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1242/jeb.029983" target="_blank" rel="noreferrer noopener">http://doi.org/10.1242/jeb.029983</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).
Pages
4040-4055
Issue
24
Volume
212
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
The Morphology Of The Masticatory Apparatus Facilitates Muscle Force Production At Wide Jaw Gapes In Tree-gouging Common Marmosets (callithrix Jacchus)
Publisher
An entity responsible for making the resource available
Journal of Experimental Biology
Date
A point or period of time associated with an event in the lifecycle of the resource
2009
2009-12
Subject
The topic of the resource
3-dimensional mathematical-model; bite forces; biting; common marmosets; cross-sectional area; efficiency; fiber architecture; fiber length; jaw gape; Life Sciences & Biomedicine - Other Topics; masseter; masseter muscle; masticatory mechanics; muscle architecture; opening index; physiological; range; rhesus-monkey; sarcomere length operating; sarcomere-length; skeletal-muscle; superficial masseter; temporalis; tree gouging
Creator
An entity primarily responsible for making the resource
Eng C M; Ward S R; Vinyard C J; Taylor A B
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1242/jeb.029983" target="_blank" rel="noreferrer noopener">10.1242/jeb.029983</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article or Conference Abstract Publication
2009
3-dimensional mathematical-model
bite forces
biting
common marmosets
cross-sectional area
Efficiency
Eng C M
fiber architecture
fiber length
jaw gape
Journal of Experimental Biology
Life Sciences & Biomedicine - Other Topics
Masseter
masseter muscle
masticatory mechanics
muscle architecture
opening index
Physiological
range
rhesus-monkey
sarcomere length operating
sarcomere-length
skeletal-muscle
superficial masseter
Taylor A B
Temporalis
tree gouging
Vinyard C J
Ward S R
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
187-187
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Functional architecture of the brainstem trigeminal complex in two callitrichid species with divergent feeding behaviors (Callithrix jacchus and Saguinus oedipus)
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2006
2006
Subject
The topic of the resource
Anthropology; Evolutionary Biology
Creator
An entity primarily responsible for making the resource
White L E; Jones K E; Vinyard C J; Taylor A B
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2006
American journal of physical anthropology
Anthropology
Evolutionary Biology
Jones K E
Journal Article
Taylor A B
Vinyard C J
White L E
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
279-280
Volume
150
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Comparative analysis of covariance structure in the skull and postcranial skeletons of living apes
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2013
2013
Subject
The topic of the resource
Anthropology; Evolutionary Biology
Creator
An entity primarily responsible for making the resource
Vinyard P S; Taylor A B; Vinyard C J
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2013
American journal of physical anthropology
Anthropology
Evolutionary Biology
Journal Article
Taylor A B
Vinyard C J
Vinyard P S
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
302-302
Volume
156
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Title
A name given to the resource
Rates of dental microwear in laboratory primates track changes in food items consumed
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2015
2015-03
Subject
The topic of the resource
Anthropology; Evolutionary Biology
Creator
An entity primarily responsible for making the resource
Teaford M F; Taylor A B; Iriarte-Diaz J; Ross C F; Vinyard C J
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2015
American journal of physical anthropology
Anthropology
Evolutionary Biology
Iriarte-Diaz J
Journal Article
Ross C F
Taylor A B
Teaford M F
Vinyard C J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
245-245
Volume
168
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NEOMED College
NEOMED College of Medicine
NEOMED Department
Department of Anatomy & Neurobiology
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Dental microwear in laboratory primates: Insights into the complexity of dental microwear formation
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
2019-03
Subject
The topic of the resource
Anthropology; Evolutionary Biology
Creator
An entity primarily responsible for making the resource
Teaford M F; Laird M F; Ross C F; Taylor A B; Ungar P S; Vinyard C J
Identifier
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n/a
Format
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Journal Article
Description
An account of the resource
Dental microwear analysis has been employed in studies of a wide range of modern and fossil animals, yielding many insights into the biology/ecology of those taxa. Paleoanthropological studies have produced both expected and unexpected results (e.g., comparisons of South and East African robust australopithecines). Some critics have suggested that, because exogenous grit is harder than organic materials in food, grit should have an overwhelming impact on dental microwear patterns.
To shed light on this issue, feeding experiments were conducted on laboratory capuchin monkeys [Sapajus apella] with dental impressions taken before and after each feeding session. The food was an confectionary gelatin (“Jell-O”) prepared with less water to make it stiffer, and it was laced with specific amounts of aluminum silicate pumice to simulate the presence of grit. Resultant casts were analyzed by SEM and confocal microscopy. We asked two main questions: (1) would new microwear features be formed in the course of single feeding bouts, and (2) would there be any changes in dental microwear texture as a result of the presence of the grit in these feeding experiments?
Initial results showed that no new features and no changes in dental microwear texture were detected. These findings suggest that the impact of exogenous grit on dental microwear is the result of dynamic, complex interactions among many factors including the material properties of both the food and the grit, grit load and amount of time spent feeding.
Funding was provided by National Science Foundation (NSF-BCS-1440542) and the American Association of Physical Anthropologists Cobb Professional Development Program.
2019
88th Annual Meeting of the American Association of Physical Anthropologists (2019)
American journal of physical anthropology
Anthropology
Department of Anatomy & Neurobiology
Evolutionary Biology
Journal Article
Laird M F
NEOMED College of Medicine
Ross C F
Taylor A B
Teaford M F
Ungar P S
Vinyard C J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
204-205
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Variation in masseter muscle fiber architecture in five strains of inbred mice: implications for heritability of fiber architecture
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2008
2008
Subject
The topic of the resource
Anthropology; Evolutionary Biology
Creator
An entity primarily responsible for making the resource
Taylor A B; Vinyard C J; Payseur B A
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2008
American journal of physical anthropology
Anthropology
Evolutionary Biology
Journal Article
Payseur B A
Taylor A B
Vinyard C J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
252-252
Volume
153
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Validation of a model for estimating sarcomere length operating range of the superficial masseter muscle in primates
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2014
2014-03
Subject
The topic of the resource
Anthropology; Evolutionary Biology
Creator
An entity primarily responsible for making the resource
Taylor K C; Vinyard C J; Taylor A B
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2014
American journal of physical anthropology
Anthropology
Evolutionary Biology
Journal Article
Taylor A B
Taylor K C
Vinyard C J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
269-269
Volume
150
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Title
A name given to the resource
The scaling of jaw-muscle fiber architecture in anthropoid primates
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2013
2013
Subject
The topic of the resource
Anthropology; Evolutionary Biology
Creator
An entity primarily responsible for making the resource
Taylor A B; Yuan T; Ross C F; Vinyard C J
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2013
American journal of physical anthropology
Anthropology
Evolutionary Biology
Journal Article
Ross C F
Taylor A B
Vinyard C J
Yuan T
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
193-193
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Masseter muscle fiber architecture in tree-gouging (Callithrix jacchus) and non-gouging (Saguinus oedipus) callitrichids
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2004
2004
Subject
The topic of the resource
Anthropology; Evolutionary Biology
Creator
An entity primarily responsible for making the resource
Taylor A B; Vinyard C J
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2004
American journal of physical anthropology
Anthropology
Evolutionary Biology
Journal Article
Taylor A B
Vinyard C J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
253-253
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Title
A name given to the resource
Jaw-muscle fiber architecture in great apes: a preliminary analysis of fiber length and physiologic cross-sectional area
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2009
2009
Subject
The topic of the resource
Anthropology; Evolutionary Biology
Creator
An entity primarily responsible for making the resource
Taylor A B; Swaniker J R; Vinyard C J
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2009
American journal of physical anthropology
Anthropology
Evolutionary Biology
Journal Article
Swaniker J R
Taylor A B
Vinyard C J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
1-1
Volume
24
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Title
A name given to the resource
The functional correlates of jaw-muscle fiber architecture in primates
Publisher
An entity responsible for making the resource available
Faseb Journal
Date
A point or period of time associated with an event in the lifecycle of the resource
2010
2010-04
Subject
The topic of the resource
Biochemistry & Molecular Biology; Cell Biology; Life Sciences & Biomedicine - Other; Topics
Creator
An entity primarily responsible for making the resource
Taylor A B; Vinyard C J
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2010
Biochemistry & Molecular Biology
Cell Biology
Faseb Journal
Journal Article
Life Sciences & Biomedicine - Other
Taylor A B
Topics
Vinyard C J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
271-271
Volume
165
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Title
A name given to the resource
Can we extend Kay's observation on the distinctiveness of bilophodonty among primates to include cercopithecine skull form, jaw-muscle fiber architecture and microwear?
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2018
2018-04
Subject
The topic of the resource
Anthropology; Evolutionary Biology
Creator
An entity primarily responsible for making the resource
Taylor A B; Teaford M F; Vinyard C J
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2018
American journal of physical anthropology
Anthropology
Evolutionary Biology
Journal Article
Taylor A B
Teaford M F
Vinyard C J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
n/a
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
1-1
Volume
26
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Dublin Core
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Title
A name given to the resource
Comparative analysis of masticatory apparatus features in neonatal common marmosets (Callithrix jacchus) and cotton-top tamarins (Saguinus oedipus)
Publisher
An entity responsible for making the resource available
Faseb Journal
Date
A point or period of time associated with an event in the lifecycle of the resource
2012
2012-04
Subject
The topic of the resource
Biochemistry & Molecular Biology; Cell Biology; Life Sciences & Biomedicine - Other; Topics
Creator
An entity primarily responsible for making the resource
Mork A L; Taylor A B; Vinyard C J
Identifier
An unambiguous reference to the resource within a given context
n/a
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2012
Biochemistry & Molecular Biology
Cell Biology
Faseb Journal
Journal Article
Life Sciences & Biomedicine - Other
Mork A L
Taylor A B
Topics
Vinyard C J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1002/ajpa.22260" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ajpa.22260</a>
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
120-134
Issue
1
Volume
151
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Title
A name given to the resource
The Relationships Among Jaw-Muscle Fiber Architecture, Jaw Morphology, and Feeding Behavior in Extant Apes and Modern Humans
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2013
2013-05
Subject
The topic of the resource
african apes; anthropoid primates; Anthropology; consequences; cross-sectional area; diet; evolution; Evolutionary Biology; finite-element-analysis; functional; hominoids; internal architecture; macaca-fascicularis; mandibular symphysis; masseter; mountain gorilla; pan-troglodytes; Temporalis
Creator
An entity primarily responsible for making the resource
Taylor A B; Vinyard C J
Description
An account of the resource
The jaw-closing muscles are responsible for generating many of the forces and movements associated with feeding. Muscle physiologic cross-sectional area (PCSA) and fiber length are two architectural parameters that heavily influence muscle function. While there have been numerous comparative studies of hominoid and hominin craniodental and mandibular morphology, little is known about hominoid jaw-muscle fiber architecture. We present novel data on masseter and temporalis internal muscle architecture for small-and large-bodied hominoids. Hominoid scaling patterns are evaluated and compared with representative New- (Cebus) and Old-World (Macaca) monkeys. Variation in hominoid jaw-muscle fiber architecture is related to both absolute size and allometry. PCSAs scale close to isometry relative to jaw length in anthropoids, but likely with positive allometry in hominoids. Thus, large-bodied apes may be capable of generating both absolutely and relatively greater muscle forces compared with smaller-bodied apes and monkeys. Compared with extant apes, modern humans exhibit a reduction in masseter PCSA relative to condyle-M-1 length but retain relatively long fibers, suggesting humans may have sacrificed relative masseter muscle force during chewing without appreciably altering muscle excursion/contraction velocity. Lastly, craniometric estimates of PCSAs underestimate hominoid masseter and temporalis PCSAs by more than 50% in gorillas, and overestimate masseter PCSA by as much as 30% in humans. These findings underscore the difficulty of accurately estimating jaw-muscle fiber architecture from craniometric measures and suggest models of fossil hominin and hominoid bite forces will be improved by incorporating architectural data in estimating jaw-muscle forces. Am J Phys Anthropol 151:120-134, 2013. (C) 2013 Wiley Periodicals, Inc.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1002/ajpa.22260" target="_blank" rel="noreferrer noopener">10.1002/ajpa.22260</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2013
african apes
American journal of physical anthropology
anthropoid primates
Anthropology
consequences
cross-sectional area
Diet
Evolution
Evolutionary Biology
finite-element-analysis
Functional
hominoids
internal architecture
Journal Article
macaca-fascicularis
mandibular symphysis
Masseter
mountain gorilla
pan-troglodytes
Taylor A B
Temporalis
Vinyard C J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1016/j.jhevol.2009.06.001" target="_blank" rel="noreferrer noopener">http://doi.org/10.1016/j.jhevol.2009.06.001</a>
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
710-720
Issue
6
Volume
57
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Dublin Core
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Title
A name given to the resource
Jaw-muscle fiber architecture in tufted capuchins favors generating relatively large muscle forces without compromising jaw gape
Publisher
An entity responsible for making the resource available
Journal of Human Evolution
Date
A point or period of time associated with an event in the lifecycle of the resource
2009
2009-12
Subject
The topic of the resource
Anthropology; Cebus; cross-sectional area; dental microwear; Early; enamel thickness; Evolutionary Biology; feeding-behavior; Fiber length; genus cebus; hominin diet; mandibular morphology; masseter; masseter muscle; maximal bite force; myofibrillar atpase activity; PCSA; sarcomere-length; skeletal-muscle; Temporalis
Creator
An entity primarily responsible for making the resource
Taylor A B; Vinyard C J
Description
An account of the resource
Tufted capuchins (sensu lato) are renowned for their dietary flexibility and capacity to exploit hard and tough objects. Cebus apella differs from other capuchins in displaying a suite of craniodental features that have been functionally and adaptively linked to their feeding behavior, particularly the generation and dissipation of relatively large jaw forces. We compared fiber architecture of the masseter and temporalis muscles between C. apella (n = 12) and two "untufted" capuchins (C. capucinus, n = 3; C. albifrons, n = 5). These three species share broadly similar diets, but tufted capuchins occasionally exploit mechanically challenging tissues. We tested the hypothesis that tufted capuchins exhibit architectural properties of their jaw muscles that facilitate relatively large forces including relatively greater physiologic cross-sectional areas (PCSA), more pinnate fibers, and lower ratios of mass to tetanic tension (Mass/P-0). Results show some evidence supporting these predictions, as C. apella has relatively greater superficial masseter and temporalis PCSAs, significantly so only for the temporalis following Bonferroni adjustment. Capuchins did not differ in pinnation angle or Mass/P-0. As an architectural trade-off between maximizing muscle force and muscle excursion/contraction velocity, we also tested the hypothesis that C. apella exhibits relatively shorter muscle fibers. Contrary to our prediction, there are no significant differences in relative fiber lengths between tufted and untufted capuchins. Therefore, we attribute the relatively greater PCSAs in tufted capuchins primarily to their larger muscle masses. These findings suggest that relatively large jaw-muscle PCSAs can be added to the suite of masticatory features that have been functionally linked to the exploitation of a more resistant diet by C. apella. By enlarging jaw-muscle mass to increase PCSA, rather than reducing fiber lengths and increasing pinnation, tufted capuchins appear to have increased jaw-muscle and bite forces without markedly compromising muscle excursion and contraction velocity. One performance advantage of this morphology is that it promotes relatively large bite forces at wide jaw gapes, which may be useful for processing large food items along the posterior dentition. We further hypothesize that this morphological pattern may have the ecological benefit of facilitating the dietary diversity seen in tufted capuchins. Lastly, the observed feeding on large objects, coupled with a jaw-muscle architecture that facilitates this behavior, raises concerns about utilizing C. apella as an extant behavioral model for hominins that might have specialized on small objects in their diets. (C) 2009 Elsevier Ltd. All rights reserved.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1016/j.jhevol.2009.06.001" target="_blank" rel="noreferrer noopener">10.1016/j.jhevol.2009.06.001</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2009
Anthropology
Cebus
cross-sectional area
dental microwear
Early
enamel thickness
Evolutionary Biology
feeding-behavior
fiber length
genus cebus
hominin diet
Journal Article
Journal of human evolution
mandibular morphology
Masseter
masseter muscle
maximal bite force
myofibrillar atpase activity
PCSA
sarcomere-length
skeletal-muscle
Taylor A B
Temporalis
Vinyard C J
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1002/ajpa.20991" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ajpa.20991</a>
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
353-367
Issue
3
Volume
139
Search for Full-text
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
The Functional Correlates of Jaw-Muscle Fiber Architecture in Tree-Gouging and Nongouging Callitrichid Monkeys
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2009
2009-07
Subject
The topic of the resource
Anthropology; arboreal guenons; bite force; callitrichids; cross-sectional area; Evolutionary Biology; Exudativory; Fiber length; gape; internal architecture; jaw; marmosets; masseter muscle; morphology; physiologic cross-sectional area; rabbit oryctolagus-cuniculus; sarcomere-length; skeletal-muscle; tamarins; temporalis muscle; world monkeys
Creator
An entity primarily responsible for making the resource
Taylor A B; Eng C M; Anapol F C; Vinyard C J
Description
An account of the resource
Common (Callithrix jacchus) and pygmy (Cebuella pygmaea) marmosets and cotton-top tamarins (Saguinus oedipus) share broadly similar diets of fruits, insects, and tree exudates. Marmosets, however, differ from tamarins in actively gouging trees with their anterior dentition to elicit tree exudates flow. Tree gouging in common marmosets involves the generation of relatively wide jaw gapes, but not necessarily relatively large bite forces. We compared fiber architecture of the masseter and temporalis muscles in C. jacchus (N = 18), C. pygmaea (N = 5), and S. oedipus (N = 13). We tested the hypothesis that tree-gouging marmosets would exhibit relatively longer fibers and other architectural variables that facilitate muscle stretch, As an architectural trade-off between maximizing muscle excursion/contraction velocity and muscle force, we also tested the hypothesis that marmosets would exhibit relatively less pinnate fibers, smaller physiologic cross-sectional areas (PCSA), and lower priority indices (I) for force. As predicted, marmosets display relatively longer-fibered muscles, a higher ratio of fiber length to muscle mass, and a relatively greater potential excursion of the distal tendon attachments, all of which favor muscle stretch. Marmosets further display relatively smaller PCSAs and other features that reflect a reduced capacity for force generation. The longer fibers and attendant higher contraction velocities likely facilitate the production of relatively wide jaw gapes and the capacity to generate more power from their jaw muscles during gouging. The observed functional trade-off between muscle excursion/contraction velocity and muscle force suggests that primate jaw-muscle architecture reflects evolutionary changes related to jaw movements as one of a number of functional demands imposed on the masticatory apparatus. Am J Phys Anthropol 139:353-367, 2009. (C) 2009 Wiley-Liss, Inc.
Identifier
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<a href="http://doi.org/10.1002/ajpa.20991" target="_blank" rel="noreferrer noopener">10.1002/ajpa.20991</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2009
American journal of physical anthropology
Anapol F C
Anthropology
arboreal guenons
Bite Force
callitrichids
cross-sectional area
Eng C M
Evolutionary Biology
Exudativory
fiber length
gape
internal architecture
jaw
Journal Article
marmosets
masseter muscle
morphology
Physiologic cross-sectional area
rabbit oryctolagus-cuniculus
sarcomere-length
skeletal-muscle
tamarins
Taylor A B
temporalis muscle
Vinyard C J
world monkeys
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1002/jmor.10249" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/jmor.10249</a>
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
276-285
Issue
3
Volume
261
Search for Full-text
Locate full-text within NEOMED Library's e-journal collections
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Comparative analysis of masseter fiber architecture in tree-gouging (Callithrix jacchus) and nongouging (Saguinus oedipus) callitrichids
Publisher
An entity responsible for making the resource available
Journal of Morphology
Date
A point or period of time associated with an event in the lifecycle of the resource
2004
2004-09
Subject
The topic of the resource
Anatomy & Morphology; arboreal guenons; bite force; cross-sectional area; dental; elastic energy-storage; functional-significance; internal architecture; masticatory apparatus; microwear; occlusal force; rhesus-monkeys
Creator
An entity primarily responsible for making the resource
Taylor A B; Vinyard C J
Description
An account of the resource
Common marmosets (Callithrix jacchus) and cotton-top tamarins (Saguinus oedipus) (Callitrichidae, Primates) share a broadly similar diet of fruits, insects, and tree exudates. Common marmosets, however, differ from tamarins by actively gouging trees with their anterior teeth to elicit tree exudate flow. During tree gouging, marmosets produce relatively large jaw gapes, but do not necessarily produce relatively large bite forces at the anterior teeth. We compared the fiber architecture of the masseter muscle in tree-gouging Callithrix jacchus (n = 10) to riongouging Saguinus oedipus (n = 8) to determine whether the marmoset masseter facilitates producing these large gapes during tree gouging. We predict that the marmoset masseter has relatively longer fibers and, hence, greater potential muscle excursion (i.e., a greater range of motion through increased muscle stretch). Conversely, because of the expected trade-off between excursion and force production in muscle architecture, we predict that the cotton-top tamarin masseter has more pinnate fibers and increased physiological cross-sectional area (PCSA) as compared to common marmosets. Likewise, the S. oedipus masseter is predicted to have a greater proportion of tendon relative to muscle fiber as compared to the common marmoset masseter. Common marmosets have absolutely and relatively longer masseter fibers than cotton-top tamarins. Given that fiber length is directly proportional to muscle excursion and by extension contraction velocity, this result suggests that marmosets have masseters designed for relatively greater stretching and, hence, larger gapes. Conversely, the cotton-top tamarin masseter has a greater angle of pinnation (but not significantly so), larger PCSA, and higher proportion of tendon. The significantly larger PCSA in the tamarin masseter suggests that their masseter has relatively greater force production capabilities as compared to marmosets. Collectively, these results suggest that the fiber architecture of the common marmoset masseter is part of a suite of features of the masticatory apparatus that facilitates the production of relatively large gapes during tree gouging. (C) 2004 Wiley-Liss, Inc.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1002/jmor.10249" target="_blank" rel="noreferrer noopener">10.1002/jmor.10249</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2004
Anatomy & Morphology
arboreal guenons
Bite Force
cross-sectional area
dental
elastic energy-storage
functional-significance
internal architecture
Journal Article
Journal of morphology
masticatory apparatus
microwear
occlusal force
rhesus-monkeys
Taylor A B
Vinyard C J