1
40
85
-
Text
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n/a
Pages
S101–S101
Volume
280
ISSN
0362-2525
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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
Structural Changes in Collagen Fiber Orientation Within the Forelimb Bones of Long-Lived Big Brown Bats (Eptesicus fuscus, Mammalia: Vespertilionidae) Relative to Mice (C57BL/6)
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
2019
2019-06
Subject
The topic of the resource
Anatomy & Morphology
Creator
An entity primarily responsible for making the resource
Cooper L N; Waugh D A; Vinyard C J; Galazyuk A V; Hieronymus T L
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n/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).
2019
Anatomy & Morphology
Cooper L N
Department of Anatomy & Neurobiology
Galazyuk A V
Hieronymus T L
Journal of morphology
June 2019 Update
NEOMED College of Medicine
Vinyard C J
Waugh D A
-
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.21178" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ajpa.21178</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
583-593
Issue
4
Volume
141
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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
Trabecular Bone Structure in the Mandibular Condyles of Gouging and Nongouging Platyrrhine Primates
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American Journal of Physical Anthropology
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
Anthropology; architecture; biomechanics; bone; callithrix-jacchus; callitrichids; cancellous; cortical bone; elastic principal directions; Evolutionary Biology; femoral-head; fossil record; iterative selection method; jaw functional morphology; marmosets; mechanical properties; tamarins; temporomandibular-joint
Creator
An entity primarily responsible for making the resource
Ryan T M; Colbert M; Ketcham R A; Vinyard C J
Description
An account of the resource
The relationship between mandibular form and biomechanical function is a topic of significant interest to morphologists and paleontologists alike. Several previous studies have examined the morphology of the mandible in gouging and nongouging primates as a means of understanding the anatomical correlates of this feeding behavior. The goal of the current study was to quantify the trabecular bone structure of the mandibular condyle of gouging and nongouging primates to assess the functional morphology of the jaw in these animals. High-resolution computed tomography scan data were collected from the mandibles of five adult common marmosets (Callithrix jacchus), saddle-back tamarins (Saguinus fuscicollis), and squirrel monkeys (Saimiri sciureus), respectively, and various three-dimensional morphometric parameters were measured from the condylar trabecular bone. No significant differences were found among the taxa for most trabecular bone structural features. Importantly, no mechanically significant parameters, such as bone volume fraction and degree of anisotropy, were found to vary significantly between gouging and nongouging primates. The lack of significant differences in mechanically relevant structural parameters among these three platyrrhine taxa may suggest that gouging as a habitual dietary behavior does not involve significantly higher loads on the mandibular condyle than other masticatory behaviors. Alternatively, the similarities in trabecular architecture across these three taxa may indicate that trabecular bone is relatively unimportant mechanically in the condyle of these primates and therefore is functionally uninformative. Am J Phys Anthropol 141:583-593, 2010. (C) 2009 Wiley-Liss, Inc.
Identifier
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<a href="http://doi.org/10.1002/ajpa.21178" target="_blank" rel="noreferrer noopener">10.1002/ajpa.21178</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2010
American journal of physical anthropology
Anthropology
architecture
biomechanics
Bone
callithrix-jacchus
callitrichids
cancellous
Colbert M
cortical bone
elastic principal directions
Evolutionary Biology
femoral-head
fossil record
iterative selection method
jaw functional morphology
Journal Article
Ketcham R A
marmosets
mechanical properties
Ryan T M
tamarins
temporomandibular-joint
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/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
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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
-
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
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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
An unambiguous reference to the resource within a given context
<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/10.1016/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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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.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/10.1111/jzo.12164" target="_blank" rel="noreferrer noopener">http://doi.org/10.1111/jzo.12164</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
161-169
Issue
3
Volume
294
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Dublin Core
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Title
A name given to the resource
Accessing foods can exert multiple distinct, and potentially competing, selective pressures on feeding in common marmoset monkeys
Publisher
An entity responsible for making the resource available
Journal of Zoology
Date
A point or period of time associated with an event in the lifecycle of the resource
2014
2014-11
Subject
The topic of the resource
apparatus; behavior; Callithrix; callithrix-jacchus-jacchus; enamel thickness; evolution; feeding adaptations; food; food choice; Food mechanical properties; food selection; hardness; masticatory; mechanical defenses; morphology; prey size; processing; red deer; resource acquisition; tree gouging; Zoology
Creator
An entity primarily responsible for making the resource
Thompson C L; Valenca-Montenegro M M; Melo Lcdo; Valle Y B M; Oliveira Mabd; Lucas P W; Vinyard C J
Description
An account of the resource
Animals must overcome the physical properties protecting foods to obtain nutrition. While animals can experience selection for traits that facilitate resource exploitation, specific feeding behaviors may entail multiple, different mechanical challenges with each potentially eliciting distinct selection pressures. Tree gouging by common marmosets (Primates: Callithrix jacchus) provides an illustrative case for studying these distinct mechanical challenges and their correlated behaviors and morphologies. We test the hypothesis that marmosets respond differently to three sequential mechanical stages of bark removal: (1) indentation; (2) crack initiation; (3) crack propagation. By surveying trees gouged by free-ranging marmosets in Pernambuco, Brazil, we found that mechanical variables related to crack initiation (fracture toughness, critical strain energy release rate and elastic modulus) were inversely correlated with measures of gouging intensity, with less mechanically challenging trees being gouged more intensely. Because crack initiation is likely the most mechanically challenging aspect of tree gouging, behavioral preference for less challenging resources likely allows marmosets to reduce costs and potential risks associated with accessing exudates. Variables related to bark indentation (hardness and friction) showed no relationship to the intensity of gouging behavior. Contrary to our prediction, trees with greater mechanical challenges for crack propagation (work to peel) were gouged more intensely. We attribute this pattern of gouging trees requiring greater effort in crack propagation to an inverse correlation between work to peel and fracture toughness in our tree sample. Importantly, marmosets exhibit morphological specializations of the feeding apparatus that facilitate indentation and crack propagation, potentially mitigating the need for behavioral choice. Here we show that extracting a single food resource can exert a series of distinct, potentially competing, selective forces during resource acquisition. This study illustrates how animals combine behaviors and morphological specializations to competently overcome distinct mechanical challenges, emphasizing the need for holistic approaches in understanding feeding adaptations.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1111/jzo.12164" target="_blank" rel="noreferrer noopener">10.1111/jzo.12164</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2014
apparatus
Behavior
Callithrix
callithrix-jacchus-jacchus
enamel thickness
Evolution
feeding adaptations
Food
food choice
Food mechanical properties
food selection
hardness
Journal Article
Journal of Zoology
Lucas P W
masticatory
mechanical defenses
Melo Lcdo
morphology
Oliveira Mabd
prey size
processing
red deer
resource acquisition
Thompson C L
tree gouging
Valenca-Montenegro M M
Valle Y B M
Vinyard C J
Zoology
-
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.22505" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ajpa.22505</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
1-10
Issue
1
Volume
154
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
Body temperature and thermal environment in a generalized arboreal anthropoid, wild mantled howling monkeys (Alouatta palliata)
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
2014-05
Subject
The topic of the resource
ambient-temperature; Anthropology; aotus-trivirgatus; circadian-rhythms; cold stress; costa-rica; daily torpor; Evolutionary Biology; food availability; heat stress; heat stress; human adaptations; mouse lemurs microcebus; papio-hamadryas-ursinus; squirrel-monkey; temperature variability; thermoregulation
Creator
An entity primarily responsible for making the resource
Thompson C L; Williams S H; Glander K E; Teaford M F; Vinyard C J
Description
An account of the resource
Free-ranging primates are confronted with the challenge of maintaining an optimal range of body temperatures within a thermally dynamic environment that changes daily, seasonally, and annually. While many laboratory studies have been conducted on primate thermoregulation, we know comparatively little about the thermal pressures primates face in their natural, evolutionarily relevant environment. Such knowledge is critical to understanding the evolution of thermal adaptations in primates and for comparative evaluation of humans' unique thermal adaptations. We examined temperature and thermal environment in free-ranging, mantled howling monkeys (Alouatta palliata) in a tropical dry forest in Guanacaste, Costa Rica. We recorded subcutaneous (T-sc) and near-animal ambient temperatures (T-a) from 11 animals over 1586.5 sample hours during wet and dry seasons. Howlers displayed considerable variation in T-sc, which was largely attributable to circadian effects. Despite significant seasonal changes in the ambient thermal environment, howlers showed relatively little evidence for seasonal changes in T-sc. Howlers experienced warm thermal conditions which led to body cooling relative to the environment, and plateaus in T-sc at increasingly warm T-a. They also frequently faced cool thermal conditions (T-a < T-sc) in which T-sc was markedly elevated compared with T-a. These data add to a growing body of evidence that non-human primates have more labile body temperatures than humans. Our data additionally support a hypothesis that, despite inhabiting a dry tropical environment, howling monkeys experience both warm and cool thermal pressures. This suggests that thermal challenges may be more prevalent for primates than previously thought, even for species living in nonextreme thermal environments. Am J Phys Anthropol 154:1-10, 2014. (c) 2014 Wiley Periodicals, Inc.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1002/ajpa.22505" target="_blank" rel="noreferrer noopener">10.1002/ajpa.22505</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2014
ambient-temperature
American journal of physical anthropology
Anthropology
aotus-trivirgatus
circadian-rhythms
cold stress
costa-rica
daily torpor
Evolutionary Biology
food availability
Glander K E
heat stress
human adaptations
Journal Article
mouse lemurs microcebus
papio-hamadryas-ursinus
squirrel-monkey
Teaford M F
temperature variability
thermoregulation
Thompson C L
Vinyard C J
Williams S H
-
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.21514" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ajpa.21514</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
402-414
Issue
3
Volume
145
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Title
A name given to the resource
The Influence of Experimental Manipulations on Chewing Speed During In Vivo Laboratory Research in Tufted Capuchins (Cebus apella)
Publisher
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American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2011
2011-07
Subject
The topic of the resource
anthropoid primates; Anthropology; bone strain; elastic model foods; Evolutionary Biology; experimental conditions; human mastication; jaw-muscle electromyography; lemurs lemur-catta; macaca-fascicularis; mandibular corpus; mastication; national-park; platyrrhine; symphyseal fusion
Creator
An entity primarily responsible for making the resource
Thompson C L; Donley E M; Stimpson C D; Horne W I; Vinyard C J
Description
An account of the resource
Even though in vivo studies of mastication in living primates are often used to test functional and adaptive hypotheses explaining primate masticatory behavior, we currently have little data addressing how experimental procedures performed in the laboratory influence mastication. The obvious logistical issue in assessing how animal manipulation impacts feeding physiology reflects the difficulty in quantifying mechanical parameters without handling the animal. In this study, we measured chewing cycle duration as a mechanical variable that can be collected remotely to: 1) assess how experimental manipulations affect chewing speed in Cebus apella, 2) compare captive chewing cycle durations to that of wild conspecifics, and 3) document sources of variation (beyond experimental manipulation) impacting captive chewing cycle durations. We find that experimental manipulations do increase chewing cycle durations in C. apella by as much as 152 milliseconds (ms) on average. These slower chewing speeds are mainly an effect of anesthesia (and/or restraint), rather than electrode implantation or more invasive surgical procedures. Comparison of captive and wild C. apella suggest there is no novel effect of captivity on chewing speed, although this cannot unequivocally demonstrate that masticatory mechanics are similar in captive and wild individuals. Furthermore, we document significant differences in cycle durations due to inter-individual variation and food type, although duration did not always significantly correlate with mechanical properties of foods. We advocate that the significant reduction in chewing speed be considered as an appropriate qualification when applying the results of laboratory-based feeding studies to adaptive explanations of primate feeding behaviors. Am J Phys Anthropol 145: 402-414, 2011. (C) 2011 Wiley-Liss, Inc.
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<a href="http://doi.org/10.1002/ajpa.21514" target="_blank" rel="noreferrer noopener">10.1002/ajpa.21514</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2011
American journal of physical anthropology
anthropoid primates
Anthropology
bone strain
Donley E M
elastic model foods
Evolutionary Biology
experimental conditions
Horne W I
human mastication
jaw-muscle electromyography
Journal Article
lemurs lemur-catta
macaca-fascicularis
mandibular corpus
Mastication
national-park
platyrrhine
Stimpson C D
symphyseal fusion
Thompson C L
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/10.1007/s10764-016-9917-x" target="_blank" rel="noreferrer noopener">http://doi.org/10.1007/s10764-016-9917-x</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
495-517
Issue
4
Volume
37
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Title
A name given to the resource
Measuring Microhabitat Temperature in Arboreal Primates: A Comparison of On-Animal and Stationary Approaches
Publisher
An entity responsible for making the resource available
International Journal of Primatology
Date
A point or period of time associated with an event in the lifecycle of the resource
2016
2016-10
Subject
The topic of the resource
Behavioral thermoregulation; Behavioral thermoregulation; body-temperature; Climate; costa-rica; environment; japanese macaques; measurement; Microclimate; national-park; neotropical primate; pan-troglodytes-verus; temperature; thermal; Thermal environment; thermoregulation; tropical forest; vervet monkeys; Zoology
Creator
An entity primarily responsible for making the resource
Thompson C L; Williams S H; Glander K E; Vinyard C J
Description
An account of the resource
Arboreal primates actively navigate a complex thermal environment that exhibits spatial, daily, and seasonal temperature changes. Thus, temperature measurements from stationary recording devices in or near a forest likely do not reflect the thermal microenvironments that primates actually experience. To better understand the thermal variation primates encounter, we attached automated temperature loggers to anklets worn by free-ranging mantled howling monkeys (Alouatta palliata) to record near-animal ambient temperatures. We compared these measures to conventional, stationary temperature measurements taken from within the forest, in nearby open fields, and at a remote weather station 38.6 km from the field site. We also measured temperatures across vertical forest heights and assessed the effects of wind speed, solar radiation, rain, and vapor pressure on primate subcutaneous temperatures (collected via implanted loggers). Ambient temperatures at measurement sites commonly used by researchers differed from those experienced by animals. Moreover, these differences changed between seasons, indicating dynamic shifts in thermal environment occur through space and time. Temperatures increased with height in the forest, with statistically significant, albeit low magnitude, differences between vertical distances of one meter. Near-animal temperatures showed that monkeys selected relatively warmer microhabitats during nighttime temperature lows and relatively cooler microhabitats during the day. Lastly, the thermal variables wind speed, solar radiation, vapor pressure, and rain were statistically associated with primate subcutaneous temperatures. Our data indicate that the temperatures arboreal primates experience are not well reflected by stationary devices. Attaching automated temperature loggers to animals provides a useful tool for more directly assessing primate microhabitat use.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1007/s10764-016-9917-x" target="_blank" rel="noreferrer noopener">10.1007/s10764-016-9917-x</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2016
Behavioral thermoregulation
body-temperature
Climate
costa-rica
Environment
Glander K E
international journal of primatology
japanese macaques
Journal Article
measurement
Microclimate
national-park
neotropical primate
pan-troglodytes-verus
Temperature
thermal
thermal environment
thermoregulation
Thompson C L
tropical forest
vervet monkeys
Vinyard C J
Williams S H
Zoology
-
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/10.1007/s10764-012-9647-7" target="_blank" rel="noreferrer noopener">http://doi.org/10.1007/s10764-012-9647-7</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
65-85
Issue
1
Volume
34
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Title
A name given to the resource
Spatial Distribution and Exploitation of Trees Gouged by Common Marmosets (Callithrix jacchus)
Publisher
An entity responsible for making the resource available
International Journal of Primatology
Date
A point or period of time associated with an event in the lifecycle of the resource
2013
2013-02
Subject
The topic of the resource
alouatta-palliata; callitrichids; Exudativory; food resource distribution; GIS; group-size; home-range use; howler monkeys; Intergroup competition; japanese macaques; monkeys erythrocebus-patas; patch size; Renewable; Resource distribution; resources; social-organization; territorial defense; Zoology
Creator
An entity primarily responsible for making the resource
Thompson C L; Robl N J; Melo L C; Valena-Montenegro M M; Valle Y B M; de Oliveira M A B; Vinyard C J
Description
An account of the resource
Resource distribution shapes many aspects of primate behavioral ecology. Though the spatial patterning of fruits, leaves, and insects has been explored among primate foods, comparatively less is known about exudate distributions. Tree exudates are a renewable resource, provide long-term evidence of exploitation, and may be selectively exploited to manipulate spatial distribution. We assessed the spatial patterning of trees gouged by common marmosets (Callithrix jacchus) to determine if they exhibit a uniform, random, or clumped distribution. We also asked whether marmosets selectively gouge trees in home range centers, which may afford them exclusive access to exudates. We explored whether spatial or physical characteristics of trees predict how intensely gouged trees were exploited. The mean nearest neighbor distance of gouged trees was significantly closer than expected for a random distribution and Ripley's K-function showed that gouged trees were clumped across all spatial scales in our study area. Clumping may enable marmosets to reduce day and home ranges and facilitate repeated gouging of trees. Gouged trees were not closer to marmosets' home range centers than peripheries, nor were centrally located trees more intensely gouged. Increased gouging intensity was associated with larger tree circumferences, although this effect was primarily driven by interspecific differences in circumference. Although marmosets may benefit from exploiting clumped exudates, they do not concentrate gouging in areas where they are more likely to gain exclusive access. Species-specific tree characteristics such as exudate quality and/or bark properties may play a larger role in determining gouging patterns than intergroup feeding competition.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1007/s10764-012-9647-7" target="_blank" rel="noreferrer noopener">10.1007/s10764-012-9647-7</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2013
alouatta-palliata
callitrichids
de Oliveira M A B
Exudativory
food resource distribution
GIS
group-size
home-range use
howler monkeys
Intergroup competition
international journal of primatology
japanese macaques
Journal Article
Melo L C
monkeys erythrocebus-patas
patch size
Renewable
Resource distribution
resources
Robl N J
social-organization
territorial defense
Thompson C L
Valena-Montenegro M M
Valle Y B M
Vinyard C J
Zoology
-
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/10.11607/ijp.3931" target="_blank" rel="noreferrer noopener">http://doi.org/10.11607/ijp.3931</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
79-92
Issue
1
Volume
28
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Title
A name given to the resource
Electromyographic Evaluation of Masticatory Muscles in Dentate Patients Versus Conventional and Implant-Supported Fixed and Removable Denture Wearers- A Preliminary Report Comparing Model Foods
Publisher
An entity responsible for making the resource available
International Journal of Prosthodontics
Date
A point or period of time associated with an event in the lifecycle of the resource
2015
2015-01
Subject
The topic of the resource
bridges; chewing patterns; Dentistry; fluids; force; Oral Surgery & Medicine; performance; reflex; size; swallowing threshold; texture-perception; young
Creator
An entity primarily responsible for making the resource
Uram-Tuculescu S; Cooper L F; Foegeding E A; Vinyard C J; De Kok I J; Essick G
Description
An account of the resource
Purpose: To evaluate differences in masticatory muscle function during chewing of model foods designed to differ in fracture strength between dentate subjects (n = 5, ages 59 to 68 years) versus patients treated with a maxillary conventional complete denture opposing natural dentition or one of the following types of mandibular complete dentures: conventional, implant-supported overdenture, implant-supported fixed denture (n = 20, ages 45 to 83 years). The authors hypothesized that denture wearers would differ in duration of chewing, frequency of chewing, and masticatory muscle activity while preparing a bolus for swallowing. Materials and Methods: Surface electromyography was recorded bilaterally from the masseter, anterior temporalis, and anterior digastric. Masticatory muscle activity was evaluated using scaled values of the area under the electromyographic curve, while subjects chewed agar-based model foods with different fracture strengths. Chewing duration and frequency also were calculated from electromyographic recordings. Mixed model analysis of variance with "subject" as a random factor was used during statistical analysis. Logarithmic transformation was required to achieve normalization of residuals for the duration of chewing and the relative masticatory muscles activity, but not for the chewing frequency. Results: Relative masticatory muscle activity was 2.57 times higher for the denture wearers than for the dentate subjects during chewing of model foods (P < .0001). The reduction in masticatory muscle activity from the 1st to the 10th chewing cycle was proportionally less in magnitude and occurred more gradually for denture wearers compared to dentate subjects. While chewing sequence duration increased with food fracture strength, it did not differ significantly in treatment versus dentate groups. Chewing cycle frequency did not differ between groups or with food fracture strength. Conclusions: The observed increases in relative masticatory muscle activity for denture wearers compared to the dentate subjects during oral food processing likely reflect supplemental mechanical efforts to accommodate the use of dentures for preparing a bolus for swallowing.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.11607/ijp.3931" target="_blank" rel="noreferrer noopener">10.11607/ijp.3931</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2015
bridges
chewing patterns
Cooper L F
De Kok I J
Dentistry
Essick G
fluids
Foegeding E A
force
International Journal of Prosthodontics
Journal Article
Oral Surgery & Medicine
Performance
Reflex
size
swallowing threshold
texture-perception
Uram-Tuculescu S
Vinyard C J
young
-
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/10.1007/s10764-006-9083-7" target="_blank" rel="noreferrer noopener">http://doi.org/10.1007/s10764-006-9083-7</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
1461-1490
Issue
5
Volume
27
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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
Cross-sectional bone distribution in the mandibles of gouging and non-gouging platyrrhini
Publisher
An entity responsible for making the resource available
International Journal of Primatology
Date
A point or period of time associated with an event in the lifecycle of the resource
2006
2006-10
Subject
The topic of the resource
bone biomechanics; callithrix-jacchus; cross-sectional geometry; form; functional-significance; iterative selection method; jaw functional morphology; load resistance; macaca-fascicularis; mandibular corpus; morphology; new-world monkeys; primates; stress; tree gouging; Zoology
Creator
An entity primarily responsible for making the resource
Vinyard C J; Ryan T M
Description
An account of the resource
Recent morphometric analyses have led to dissimilar conclusions about whether the jaws of tree-gouging primates are designed to resist the purportedly large forces generated during this biting behavior. We further address this question by comparing the cross-sectional geometry of the mandibular corpus and symphysis in tree-gouging common marmosets (Callithrix jacchus) to nongouging saddleback tamarins (Saguinus fuscicollis) and squirrel monkeys (Saimiri sciureus). As might be expected, based on size, squirrel monkeys tend to have absolutely larger cross-sectional areas at each tooth location sampled, while saddleback tamarins are intermediate, followed by the smaller common marmosets. Similarly, the amount and distribution of cortical bone in squirrel monkey jaws provides them with increased ability to resist sagittal bending (I (xx) ) and torsion (K) in the corpus as well as coronal bending (I (xx) ) and shearing in the symphysis. However, when the biomechanical parameters are scaled to respective load arm estimates, there are few significant differences in relative resistance abilities among the 3 species. A power analysis indicates that we cannot statistically rule out subtle changes in marmoset jaw form linked to resisting loads during gouging. Nevertheless, our results correspond to studies in vivo of jaw loading, field data, and other comparative analyses suggesting that common marmosets do not generate relatively large bite forces during tree gouging. The 3 species are like most other anthropoids in having thinner bone on the lingual than on the buccal side of the mandibular corpus at M-1. The similarity in corporal shape across anthropoids supports a hypothesized stereotypical pattern of jaw loading during chewing and may indicate a conserved pattern of mandibular growth for the suborder. Despite the overall similarity, platyrrhines may differ slightly from catarrhines in the details of their cortical bone distribution.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1007/s10764-006-9083-7" target="_blank" rel="noreferrer noopener">10.1007/s10764-006-9083-7</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2006
bone biomechanics
callithrix-jacchus
cross-sectional geometry
form
functional-significance
international journal of primatology
iterative selection method
jaw functional morphology
Journal Article
load resistance
macaca-fascicularis
mandibular corpus
morphology
new-world monkeys
Primates
Ryan T M
Stress
tree gouging
Vinyard C J
Zoology
-
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/10.1007/s10764-012-9579-2" target="_blank" rel="noreferrer noopener">http://doi.org/10.1007/s10764-012-9579-2</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
611-631
Issue
3
Volume
33
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Title
A name given to the resource
Methods for Studying the Ecological Physiology of Feeding in Free-Ranging Howlers (Alouatta palliata) at La Pacifica, Costa Rica
Publisher
An entity responsible for making the resource available
International Journal of Primatology
Date
A point or period of time associated with an event in the lifecycle of the resource
2012
2012-06
Subject
The topic of the resource
adductor muscle force; fecal cortisol-levels; Feeding ecology; in-vivo; Jaw-muscle physiology; lemurs lemur-catta; macaca-fascicularis; mandibular function; mastication; mechanical defenses; postorbital septum; Research methods; symphyseal fusion; telemetry system; Zoology
Creator
An entity primarily responsible for making the resource
Vinyard C J; Glander K E; Teaford M F; Thompson C L; Deffenbaugh M; Williams S H
Description
An account of the resource
We lack a general understanding of how primates perform physiologically during feeding to cope with the challenges of their natural environments. We here discuss several methods for studying the ecological physiology of feeding in mantled howlers (Alouatta palliata) at La Pacifica, Costa Rica. Our initial physiological effort focuses on recording electromyographic activity (EMG) from the jaw muscles in free-ranging howlers while they feed in their natural forest habitat. We integrate these EMG data with measurements of food material properties, dental wear rates, as well as spatial analyses of resource use and food distribution. Future work will focus on incorporating physiological measures of bone deformation, i.e., bone strain; temperatures; food nutritional data; and hormonal analyses. Collectively, these efforts will help us to better understand the challenges that howlers face in their environment and the physiological mechanisms they employ during feeding. Our initial efforts provide a proof of concept demonstrating the methodological feasibility of studying the physiology of feeding in free-ranging primates. Although howlers offer certain advantages to in vivo field research, many of the approaches described here can be applied to other primates in natural habitats. By collecting physiological data simultaneously with ecological and behavioral data, we will promote a more synthetic understanding of primate feeding and its evolutionary history.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1007/s10764-012-9579-2" target="_blank" rel="noreferrer noopener">10.1007/s10764-012-9579-2</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2012
adductor muscle force
Deffenbaugh M
fecal cortisol-levels
Feeding ecology
Glander K E
in-vivo
international journal of primatology
Jaw-muscle physiology
Journal Article
lemurs lemur-catta
macaca-fascicularis
mandibular function
Mastication
mechanical defenses
postorbital septum
Research methods
symphyseal fusion
Teaford M F
telemetry system
Thompson C L
Vinyard C J
Williams S H
Zoology
-
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.2016.07.001" target="_blank" rel="noreferrer noopener">http://doi.org/10.1016/j.jhevol.2016.07.001</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
27-35
Volume
98
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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
Preference and consequences: A preliminary look at whether preference impacts oral processing in non-human primates
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
2016
2016-09
Subject
The topic of the resource
Anthropology; bitter taste; cebus-apella; chewing behavior; electromyography; Evolutionary Biology; fallback foods; Feeding; Food mechanical properties; Food preference; hardness; mastication; mechanical properties; model foods; muscle; patterns; texture
Creator
An entity primarily responsible for making the resource
Vinyard C J; Thompson C L; Doherty A; Robl N
Description
An account of the resource
Non-human primates demonstrate food preferences much like humans. We have little insight, however, into how those preferences impact oral processing in primates. To begin describing this relationship, we conducted a preliminary analysis measuring food preference in two tufted capuchins (Cebus apella) and comparing ranked preference to physiological variables during chewing of these foods. Food preference was assessed for each monkey across 12 foods, including monkey biscuits and 11 foods consumed by humans (e.g., various fruits and nuts). Animals chose from randomized pairs of foods to generate a ranked scale across the 12 foods. Contemporaneous with preference testing, electromyographic (EMG) activity was measured for the jaw-closing muscles to assess oral physiology during chewing of these foods. As expected, these capuchins exhibited clear preferences among these 12 foods. Based on their preferences, we identified sets of preferred and non-preferred brittle (i.e., almond versus monkey chow) and ductile (i.e., dates and prunes versus apricots) foods for physiological comparisons that broadly control variation in food mechanical properties (FMPs). As expected, oral physiology varied with FMPs in each animal. Within brittle and ductile groupings, we observed several significant differences in chewing cycle length and relative muscle activation levels that are likely related to food preference. These differences tended to be complex and individual specific. The two capuchins chewed non-preferred apricots significantly faster than preferred dates and prunes. Effect sizes for preference were smaller than those for FMPs, supporting the previous focus on FMPs in primate dietary research. Although preliminary, these results suggest that food preference may influence oral physiology in non-human primates. The prospect that this relationship exists in monkeys raises the possibility that a link between food preference and oral processing in humans may be based on shared tendencies with non-human primates, such as aversion to bitter items or preference for sweet foods. (C) 2016 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.2016.07.001" target="_blank" rel="noreferrer noopener">10.1016/j.jhevol.2016.07.001</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2016
Anthropology
bitter taste
cebus-apella
chewing behavior
Doherty A
Electromyography
Evolutionary Biology
fallback foods
Feeding
Food mechanical properties
Food preference
hardness
Journal Article
Journal of human evolution
Mastication
mechanical properties
model foods
Muscle
patterns
Robl N
texture
Thompson C L
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.cofs.2016.06.003" target="_blank" rel="noreferrer noopener">http://doi.org/10.1016/j.cofs.2016.06.003</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
50-55
Volume
9
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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
Using electromyography as a research tool in food science
Publisher
An entity responsible for making the resource available
Current Opinion in Food Science
Date
A point or period of time associated with an event in the lifecycle of the resource
2016
2016-06
Subject
The topic of the resource
chewing behavior; emg; Food Science & Technology; force; mastication; muscle; normalization; patterns; release; surface electromyography; texture-perception
Creator
An entity primarily responsible for making the resource
Vinyard C J; Fiszman S
Description
An account of the resource
The jaw muscles play key functional roles during feeding. During contraction, a bioelectrical signal propagates along the muscle cell helping to coordinate muscle contraction. This signal can be measured via electromyography (EMG). Food scientists have increasingly adopted EMG as a tool for studying the relationships among food textures and oral processing. Specifically, food scientists have used EMG from the feeding muscles as (1) a general measure of food texture, (2) a measure of oral physiology, (3) an estimate of absolute force and (4) a measure of muscle work. Unfortunately, physiological research indicates that estimates of absolute force and mechanical work are not reliably indicated from EMG as it is best considered an indicator of muscle activity and relative recruitment levels.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1016/j.cofs.2016.06.003" target="_blank" rel="noreferrer noopener">10.1016/j.cofs.2016.06.003</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2016
chewing behavior
Current Opinion in Food Science
emg
Fiszman S
Food Science & Technology
force
Journal Article
Mastication
Muscle
normalization
patterns
release
surface electromyography
texture-perception
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/10.1093/icb/icr047" target="_blank" rel="noreferrer noopener">http://doi.org/10.1093/icb/icr047</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
215-223
Issue
2
Volume
51
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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
Overview of FEED, the Feeding Experiments End-user Database
Publisher
An entity responsible for making the resource available
Integrative and Comparative Biology
Date
A point or period of time associated with an event in the lifecycle of the resource
2011
2011-08
Subject
The topic of the resource
Biology; coordination; evolution; fishes; infant; jaw; motor control; muscle; patterns; vertebrates; Zoology
Creator
An entity primarily responsible for making the resource
Wall C E; Vinyard C J; Williams S H; Gapeyev V; Liu X H; Lapp H; German R Z
Description
An account of the resource
The Feeding Experiments End-user Database (FEED) is a research tool developed by the Mammalian Feeding Working Group at the National Evolutionary Synthesis Center that permits synthetic, evolutionary analyses of the physiology of mammalian feeding. The tasks of the Working Group are to compile physiologic data sets into a uniform digital format stored at a central source, develop a standardized terminology for describing and organizing the data, and carry out a set of novel analyses using FEED. FEED contains raw physiologic data linked to extensive metadata. It serves as an archive for a large number of existing data sets and a repository for future data sets. The metadata are stored as text and images that describe experimental protocols, research subjects, and anatomical information. The metadata incorporate controlled vocabularies to allow consistent use of the terms used to describe and organize the physiologic data. The planned analyses address long-standing questions concerning the phylogenetic distribution of phenotypes involving muscle anatomy and feeding physiology among mammals, the presence and nature of motor pattern conservation in the mammalian feeding muscles, and the extent to which suckling constrains the evolution of feeding behavior in adult mammals. We expect FEED to be a growing digital archive that will facilitate new research into understanding the evolution of feeding anatomy.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1093/icb/icr047" target="_blank" rel="noreferrer noopener">10.1093/icb/icr047</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2011
Biology
coordination
Evolution
Fishes
Gapeyev V
German R Z
Infant
Integrative and comparative biology
jaw
Journal Article
Lapp H
Liu X H
motor control
Muscle
patterns
Vertebrates
Vinyard C J
Wall C E
Williams S H
Zoology
-
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.20290" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ajpa.20290</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
215-224
Issue
2
Volume
129
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Title
A name given to the resource
Phase II jaw movements and masseter muscle activity during chewing in Papio anubis
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
2006-02
Subject
The topic of the resource
adaptations; Anthropology; bone strain; dentition; emg; evolution; Evolutionary Biology; jaw muscles; loading patterns; macaca-fascicularis; macaques; mastication; power stroke; primates; teeth
Creator
An entity primarily responsible for making the resource
Wall C E; Vinyard C J; Johnson K R; Williams S H; Hylander W L
Description
An account of the resource
It was proposed that the power stroke in primates has two distinct periods of occlusal contact, each with a characteristic motion of the mandibular molars relative to the maxillary molars. The two movements are called phase I and phase IT, and they occur sequentially in that order (Kay and Hiiemae [1974] Am J. Phys. Anthropol. 40:227-256, Kay and Hiiemae [1974] Prosimian Biology, Pittsburgh: University of Pittsburgh Press, p. 501-530). Phase I movement is said to be associated with shearing along a series of crests, producing planar phase I facets and crushing on surfaces on the basins of the molars. Phase I terminates in centric occlusion. Phase II movement is said to be associated with grinding along the same surfaces that were used for crushing at the termination of phase I. Hylander et al. ([1987] Am J. Phys. Anthropol. 72:287-312; see also Hiiemae [1984] Food Acquisition and Processing, London: Academic Press, p. 257-281; Hylander and Crompton [1980] Am J. Phys. Anthropol. 52:239-251, [1986] Arch. Oral. Biol. 31:841-848) analyzed data on macaques and suggested that phase IT movement may not be nearly as significant for food breakdown as phase I movement simply because, based on the magnitude of mandibular bone strain patterns, adductor muscle and occlusal forces are likely negligible during movement out of centric occlusion. Our goal is to better understand the functional significance of phase IT movement within the broader context of masticatory kinematics during the power stroke. We analyze vertical and transverse mandibular motion and relative activity of the masseter and temporalis muscles during phase I and II movements in Papio anubis. We test whether significant muscle activity and, by inference, occlusal force occurs during phase IT movement. We find that during phase IT movement, there is negligible force developed in the superficial and deep masseter and the anterior and posterior temporalis muscles. Furthermore, mandibular movements are small during phase II compared to phase I. These results suggest that grinding during phase IT movement is of minimal importance for food breakdown, and that most food breakdown on phase IT facets occurs primarily at the end of phase I movement (i.e., crushing during phase I movement). We note, however, that depending on the orientation of phase I facets, significant grinding also occurs along phase I facets during phase I. (c) 2005 Wiley-Liss, Inc.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1002/ajpa.20290" target="_blank" rel="noreferrer noopener">10.1002/ajpa.20290</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2006
adaptations
American journal of physical anthropology
Anthropology
bone strain
Dentition
emg
Evolution
Evolutionary Biology
Hylander W L
jaw muscles
Johnson K R
Journal Article
loading patterns
macaca-fascicularis
macaques
Mastication
power stroke
Primates
Teeth
Vinyard C J
Wall C E
Williams S H
-
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/10.1111/j.1469-7580.2008.01008.x" target="_blank" rel="noreferrer noopener">http://doi.org/10.1111/j.1469-7580.2008.01008.x</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
65-78
Issue
1
Volume
214
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Dublin Core
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Title
A name given to the resource
Mandibular corpus bone strain in goats and alpacas: Implications for understanding the biomechanics of mandibular form in selenodont artiodactyls
Publisher
An entity responsible for making the resource available
Journal of Anatomy
Date
A point or period of time associated with an event in the lifecycle of the resource
2009
2009-01
Subject
The topic of the resource
adductor muscle force; Anatomy & Morphology; bone strain; functional-significance; jaw; macaca-fascicularis; mandibles; mandibular corpus; mastication; masticatory biomechanics; morphology; movements; stress; symphyseal fusion
Creator
An entity primarily responsible for making the resource
Williams S H; Vinyard C J; Wall C E; Hylander W L
Description
An account of the resource
The goal of this study is to clarify the functional and biomechanical relationship between jaw morphology and in vivo masticatory loading in selenodont artiodactyls. We compare in vivo strains from the mandibular corpus of goats and alpacas to predicted strain patterns derived from biomechanical models for mandibular corpus loading during mastication. Peak shear strains in both species average 600-700 mu epsilon on the working side and approximately 450 mu epsilon on the balancing side. Maximum principal tension in goats and alpacas is directed at approximately 30 degrees dorsocaudally relative to the long axis of the corpus on the working side and approximately perpendicular to the long axis on the balancing side. Strain patterns in both species indicate primarily torsion of the working-side corpus about the long axis and parasagittal bending and/or lateral transverse bending of the balancing-side corpus. Interpretation of the strain patterns is consistent with comparative biomechanical analyses of jaw morphology suggesting that in goats, the balancing-side mandibular corpus is parasagittally bent whereas in alpacas it experiences lateral transverse bending. However, in light of higher working-side corpus strains, biomechanical explanations of mandibular form also need to consider that torsion influences relative corpus size and shape. Furthermore, the complex combination of loads that occur along the selenodont artiodactyl mandibular corpus during the power stroke has two implications. First, added clarification of these loading patterns requires in vivo approaches for elucidating biomechanical links between mandibular corpus morphology and masticatory loading. Second, morphometric approaches may be limited in their ability to accurately infer masticatory loading regimes of selenodont artiodactyl jaws.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1111/j.1469-7580.2008.01008.x" target="_blank" rel="noreferrer noopener">10.1111/j.1469-7580.2008.01008.x</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2009
adductor muscle force
Anatomy & Morphology
bone strain
functional-significance
Hylander W L
jaw
Journal Article
Journal of anatomy
macaca-fascicularis
mandibles
mandibular corpus
Mastication
masticatory biomechanics
morphology
movements
Stress
symphyseal fusion
Vinyard C J
Wall C E
Williams S H
-
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/jez.a.362" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/jez.a.362</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
226-240
Issue
4
Volume
307A
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Dublin Core
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Title
A name given to the resource
Masticatory motor patterns in ungulates: A quantitative assessment of jaw-muscle coordination in goats, alpacas and horses
Publisher
An entity responsible for making the resource available
Journal of Experimental Zoology Part a-Ecological Genetics and Physiology
Date
A point or period of time associated with an event in the lifecycle of the resource
2007
2007-04
Subject
The topic of the resource
electromyography; emg; force; fusion; mandibular symphysis; masseter muscle; movements; pigs; Zoology
Creator
An entity primarily responsible for making the resource
Williams S H; Vinyard C J; Wall C E; Hylander W L
Description
An account of the resource
We investigated patterns of jaw-muscle coordination during rhythmic mastication in three species of ungulates displaying the marked transverse jaw movements typical of many large mammalian herbivores. In order to quantify consistent motor patterns during chewing, electromyograms were recorded from the superficial masseter, deep masseter, posterior temporalis and medial pterygoid muscles of goats, alpacas and horses. Timing differences between muscle pairs were evaluated in the context of an evolutionary model of jaw-muscle function. In this model, the closing and food reduction phases of mastication are primarily controlled by two distinct muscle groups, triplet I (balancing-side superficial masseter and medial pterygoid and working-side posterior temporalis) and triplet II (working-side superficial masseter and medial pterygoid and balancing-side posterior temporalis), and the asynchronous activity of the working- and balancing-side deep masseters. The three species differ in the extent to which the jaw muscles are coordinated as triplet I and triplet II. Alpacas, And to a lesser extent, goats, exhibit the triplet pattern whereas horses do not. In contrast, all three species show marked asynchrony of the working-side and balancing-side deep masseters, with jaw closing initiated by the working-side muscle and the balancing-side muscle firing much later during closing. However, goats differ from alpacas and horses in the timing of the balancing-side deep masseter relative to the triplet II muscles. This study highlights interspecific differences in the coordination of jaw muscles to influence transverse jaw movements and the production of bite force in herbivorous ungulates.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1002/jez.a.362" target="_blank" rel="noreferrer noopener">10.1002/jez.a.362</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2007
Electromyography
emg
force
fusion
Hylander W L
Journal Article
Journal of Experimental Zoology Part a-Ecological Genetics and Physiology
mandibular symphysis
masseter muscle
movements
pigs
Vinyard C J
Wall C E
Williams S H
Zoology
-
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/ajp.20189" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ajp.20189</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
329-346
Issue
3
Volume
67
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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
Mechanical properties of foods used in experimental studies of primate masticatory function
Publisher
An entity responsible for making the resource available
American Journal of Primatology
Date
A point or period of time associated with an event in the lifecycle of the resource
2005
2005-11
Subject
The topic of the resource
biomechanical analysis; elastic modulus; etectromyography; fracture-toughness; fracture-toughness; genus cebus; jaw; lateral pterygoid muscle; macaca-fascicularis; mandibular symphysis; masseter force; mechanical properties; movement; old-world monkeys; periodontal mechanoreceptive afferents; Zoology
Creator
An entity primarily responsible for making the resource
Williams S H; Wright B W; Den Truong V; Daubert C R; Vinyard C J
Description
An account of the resource
In vivo studies, of jaw-muscle behavior have been integral factors in the development of our current understanding of the primate masticatory apparatus. However, even though it has been shown that food textures and mechanical properties influence jaw-muscle activity during mastication, very little effort has been made to quantify the relationship between the elicited masticatory responses of the subject and the mechanical proper-ties of the foods that are eaten. Recent work on human mastication highlights the importance of two mechanical properties-toughness and elastic modulus (i.e., stiffness)-for food breakdown during mastication. Here we provide data on the toughness and elastic modulus of the majority of foods used in experimental studies of the nonhuman primate masticatory apparatus. Food toughness ranges from approximately 56.97Jm(-2) (apple pulp) to 4355.45 Jm(-2) (prune pit). The elastic modulus of the experimental foods ranges from 0.07 MPa for gummy bears to 346 MPa for popcorn kernels. These data can help researchers studying primate mastication select among several potential foods with broadly similar mechanical properties. Moreover, they provide a framework for understanding how jaw-muscle activity varies with food mechanical properties in these studies.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1002/ajp.20189" target="_blank" rel="noreferrer noopener">10.1002/ajp.20189</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2005
American journal of primatology
biomechanical analysis
Daubert C R
Den Truong V
Elastic Modulus
etectromyography
fracture-toughness
genus cebus
jaw
Journal Article
lateral pterygoid muscle
macaca-fascicularis
mandibular symphysis
masseter force
mechanical properties
Movement
old-world monkeys
periodontal mechanoreceptive afferents
Vinyard C J
Williams S H
Wright B W
Zoology
-
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/10.1093/icb/icr068" target="_blank" rel="noreferrer noopener">http://doi.org/10.1093/icb/icr068</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
247-259
Issue
2
Volume
51
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Title
A name given to the resource
A Preliminary Analysis of Correlated Evolution in Mammalian Chewing Motor Patterns
Publisher
An entity responsible for making the resource available
Integrative and Comparative Biology
Date
A point or period of time associated with an event in the lifecycle of the resource
2011
2011-08
Subject
The topic of the resource
alpacas; discrete characters; electromyography; emg; fusion; jaw movements; masseter; masticatory muscles; mechanics; morphology; symphyseal; Zoology
Creator
An entity primarily responsible for making the resource
Williams S H; Vinyard C J; Wall C E; Doherty A H; Crompton A W; Hylander W L
Description
An account of the resource
Descriptive and quantitative analyses of electromyograms (EMG) from the jaw adductors during feeding in mammals have demonstrated both similarities and differences among species in chewing motor patterns. These observations have led to a number of hypotheses of the evolution of motor patterns, the most comprehensive of which was proposed by Weijs in 1994. Since then, new data have been collected and additional hypotheses for the evolution of motor patterns have been proposed. Here, we take advantage of these new data and a well-resolved species-level phylogeny for mammals to test for the correlated evolution of specific components of mammalian chewing motor patterns. We focus on the evolution of the coordination of working-side (WS) and balancing-side (BS) jaw adductors (i.e., Weijs' Triplets I and II), the evolution of WS and BS muscle recruitment levels, and the evolution of asynchrony between pairs of muscles. We converted existing chewing EMG data into binary traits to incorporate as much data as possible and facilitate robust phylogenetic analyses. We then tested hypotheses of correlated evolution of these traits across our phylogeny using a maximum likelihood method and the Bayesian Markov Chain Monte Carlo method. Both sets of analyses yielded similar results highlighting the evolutionary changes that have occurred across mammals in chewing motor patterns. We find support for the correlated evolution of (1) Triplets I and II, (2) BS deep masseter asynchrony and Triplets I and II, (3) a relative delay in the activity of the BS deep masseter and a decrease in the ratio of WS to BS muscle recruitment levels, and (4) a relative delay in the activity of the BS deep masseter and a delay in the activity of the BS posterior temporalis. In contrast, changes in relative WS and BS activity levels across mammals are not correlated with Triplets I and II. Results from this work can be integrated with dietary and morphological data to better understand how feeding and the masticatory apparatus have evolved across mammals in the context of new masticatory demands.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1093/icb/icr068" target="_blank" rel="noreferrer noopener">10.1093/icb/icr068</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2011
alpacas
Crompton A W
discrete characters
Doherty A H
Electromyography
emg
fusion
Hylander W L
Integrative and comparative biology
jaw movements
Journal Article
Masseter
masticatory muscles
mechanics
morphology
symphyseal
Vinyard C J
Wall C E
Williams S H
Zoology
-
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.20992" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ajpa.20992</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
368-381
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
Food Mechanical Properties in Three Sympatric Species of Hapalemur in Ranomafana National Park, Madagascar
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; bamboo lemur; diet; evolution; Evolutionary Biology; fracture-toughness; genus cebus; hardness; macaca-fascicularis; mechanical properties; morphology; patterns; primates
Creator
An entity primarily responsible for making the resource
Yamashita N; Vinyard C J; Tan C L
Description
An account of the resource
We investigated mechanical dietary properties of sympatric bamboo lemurs, Hapalemur g. griseus, H. aureus, and H. (Prolemur) simus, in Ranomafana National Park, Madagascar. Each lemur species relies on bamboo, though previous behavioral observations found that they specialize on different parts of a common resource (Tan: Int J Primatol 20 [1999] 547-566; Tan: PhD dissertation [2000] State University of New York, Stony Brook). On the basis of these earlier behavioral ecology studies, we hypothesized that specialization on bamboo is related to differences in mechanical properties of specific parts. We quantified mechanical properties of individual plant parts from the diets of the bamboo lemur species using a portable tester. The diets of the Hapalemur spp. exhibited high levels of mechanical heterogeneity. The lemurs, however, could be segregated based on the most challenging (i.e., mechanically demanding) foods. Giant bamboo culm pith was the toughest and stiffest food eaten, and its sole lemur consumer, H. simus, had the most challenging diet. However, the mechanical dietary properties of H. simus and H. aureus overlapped considerably. In the cases where lemur species converged on the same bamboo part, the size of the part eaten increased with body size. Plant parts that were harvested orally but not necessarily masticated were the most demanding, indicating that food preparation may place significant loads on the masticatory apparatus. Finally, we describe how mechanical properties can influence feeding behavior. The elaborate procurement processes of H. simus feeding on culm pith and H. griseus and H. aureus feeding on young leaf bases are related to the toughnesses of protective coverings and the lemurs' exploitation of mechanical vulnerabilities in these plants. Am J Phys Anthropol 139:368-381, 2009. (C) 2008 Wiley-Liss, Inc.
Identifier
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<a href="http://doi.org/10.1002/ajpa.20992" target="_blank" rel="noreferrer noopener">10.1002/ajpa.20992</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2009
American journal of physical anthropology
Anthropology
bamboo lemur
Diet
Evolution
Evolutionary Biology
fracture-toughness
genus cebus
hardness
Journal Article
macaca-fascicularis
mechanical properties
morphology
patterns
Primates
Tan C L
Vinyard C J
Yamashita N
-
Text
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<a href="http://doi.org/10.1002/ajp.20751" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ajp.20751</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
56-61
Issue
1
Volume
72
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Semi-Quantitative Tests of Cyanide in Foods and Excreta of Three Hapalemur Species in Madagascar
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American Journal of Primatology
Date
A point or period of time associated with an event in the lifecycle of the resource
2010
2010-01
Subject
The topic of the resource
bamboo; bamboo lemur; cyanide; Cyantesmo test strips; diet; lemurs; plants; ranomafana national-park; secondary compounds; Zoology
Creator
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Yamashita N; Tan C L; Vinyard C J; Williams C
Description
An account of the resource
Three sympatric Hapalemur species (H. g. griseus, H. aureus, and H. (Prolemur) simus) in Ranomafana National Park, Madagascar are known to eat bamboo food parts that contain cyanide. How these lemurs avoid cyanide poisoning remains unknown. In this study, we tested for the presence/absence of cyanide in bamboo lemur foods and excreta to (1) document patterns of cyanide consumption among species with respect to diet, (2) identify routes of elimination of cyanide from the gastrointestinal tract, and (3) determine whether cyanide is absorbed from the diet. We tested 102 food, urine, and fecal samples for hydrogen cyanide (HCN) during two "pre-dry" seasons (April 2006, May 2007) using commercially available Cyantesmo test strips. The test strips changed color in the presence of HCN and we recorded color change on a scale of 0 (no change) to 5 (cobalt) at preset intervals with a final score taken at 24 hr. We detected cyanide in bamboo food parts and urine of all three Hapalemur species. Time to color change of the test strips ranged from almost instantaneous to > 12 hr incubation. Of the foods tested, only bamboo contained cyanide, but results differed among bamboo species and plant parts of the same species. Specifically, branch shoot and culm pith of the giant bamboo produced strong, immediate reactions to the test paper, whereas parts of liana bamboos produced either weak or no color change. Cyanide was present in almost all urine samples but rarely in fecal samples. This suggests that dietary cyanide is absorbed in the gastrointestinal tract of the Hapalemur species and excreted, at least in part, by the kidneys. Samples from H. griseus exhibited lower, though still detectable, cyanide levels compared with H. simus and H. aureus. Differences among lemur species appear to be related to the specific bamboo parts consumed. Am. J. Primatol. 72:56-61, 2010. (C) 2009 Wiley-Liss, Inc.
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<a href="http://doi.org/10.1002/ajp.20751" target="_blank" rel="noreferrer noopener">10.1002/ajp.20751</a>
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Journal Article
2010
American journal of primatology
bamboo
bamboo lemur
cyanide
Cyantesmo test strips
Diet
Journal Article
lemurs
Plants
ranomafana national-park
secondary compounds
Tan C L
Vinyard C J
Williams C
Yamashita N
Zoology
-
Text
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<a href="http://doi.org/10.1111/j.1600-0846.2009.00351.x" target="_blank" rel="noreferrer noopener">http://doi.org/10.1111/j.1600-0846.2009.00351.x</a>
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Pages
271-282
Issue
3
Volume
15
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In vivo skin elastography with high-definition optical videos
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Skin Research and Technology
Date
A point or period of time associated with an event in the lifecycle of the resource
2009
2009-08
Subject
The topic of the resource
biomechanical properties; Dermatology; Dermatology; mechanical properties; optical flow; skin elastography; strain image; suction cup; tissue; tissue abnormality; visualization
Creator
An entity primarily responsible for making the resource
Zhang Y; Brodell R T; Mostow E N; Vinyard C J; Marie H
Description
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Background/aims Continuous measurements of biomechanical properties of skin provide potentially valuable information to dermatologists for both clinical diagnosis and quantitative assessment of therapy. This paper presents an experimental study on in vivo imaging of skin elastic properties using high-definition optical videos. The objective is to (i) investigate whether skin property abnormalities can be detected in the computed strain elastograms, (ii) quantify property abnormalities with a Relative Strain Index (RSI), so that an objective rating system can be established, (iii) determine whether certain skin diseases are more amenable to optical elastography and (iv) identify factors that may have an adverse impact on the quality of strain elastograms. Methods There are three steps in optical skin elastography: (i) skin deformations are recorded in a video sequence using a high-definition camcorder, (ii) a dense motion field between two adjacent video frames is obtained using a robust optical flow algorithm, with which a cumulative motion field between two frames of a larger interval is derived and (iii) a strain elastogram is computed by applying two weighted gradient filters to the cumulative motion data. Results Experiments were carried out using videos of 25 patients. In the three cases presented in this article (hypertrophic lichen planus, seborrheic keratosis and psoriasis vulgaris), abnormal tissues associated with the skin diseases were successfully identified in the elastograms. There exists a good correspondence between the shape of property abnormalities and the area of diseased skin. The computed RSI gives a quantitative measure of the magnitude of property abnormalities that is consistent with the skin stiffness observed on clinical examinations. Conclusions Optical elastography is a promising imaging modality that is capable of capturing disease-induced property changes. Its main advantage is that an elastogram presents a continuous description of the spatial variation of skin properties on the pixel level that would otherwise be impossible with other sensors. Its value will be further enhanced when used with a point-wise measuring device such as a cutometer that yields absolute elasticity values.
Identifier
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<a href="http://doi.org/10.1111/j.1600-0846.2009.00351.x" target="_blank" rel="noreferrer noopener">10.1111/j.1600-0846.2009.00351.x</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article
2009
biomechanical properties
Brodell R T
Dermatology
Journal Article
Marie H
mechanical properties
Mostow E N
optical flow
skin elastography
Skin Research and Technology
strain image
suction cup
tissue
tissue abnormality
Vinyard C J
visualization
Zhang Y
-
Text
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n/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
1-1
Volume
26
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Title
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Comparative analysis of masticatory apparatus features in neonatal common marmosets (Callithrix jacchus) and cotton-top tamarins (Saguinus oedipus)
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Faseb Journal
Date
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2012
2012-04
Subject
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Biochemistry & Molecular Biology; Cell Biology; Life Sciences & Biomedicine - Other; Topics
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Mork A L; Taylor A B; Vinyard C J
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n/a
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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
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n/a
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Pages
194-194
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Title
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Heterochrony of cranial features associated with wide jaw gapes in common marmosets (Callithrix jacchus)
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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
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Mork A L; Vinyard C J
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n/a
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The file format, physical medium, or dimensions of the resource
Journal Article
2009
American journal of physical anthropology
Anthropology
Evolutionary Biology
Journal Article
Mork A L
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.
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n/a
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Pages
287-287
Volume
156
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Title
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Functional scaling trends in the trabecular architecture of the mandibular condyle of Strepsirrhine primates
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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
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The topic of the resource
Anthropology; Evolutionary Biology
Creator
An entity primarily responsible for making the resource
Siegel N D; Ravosa M J; Vinyard C J
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n/a
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Journal Article
2015
American journal of physical anthropology
Anthropology
Evolutionary Biology
Journal Article
Ravosa M J
Siegel N D
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.
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n/a
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Pages
228-228
Volume
168
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NEOMED College
NEOMED College of Medicine
NEOMED Department
NEOMED Student Publications; Department of Anatomy & Neurobiology
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Title
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Trabecular ontogeny of the mandibular condyle in callitrichids
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American Journal of Physical Anthropology
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2019
2019-03
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The topic of the resource
Anthropology; Evolutionary Biology
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An entity primarily responsible for making the resource
Siegel N D; Vinyard C J
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n/a
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Journal Article
Description
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Several bony and soft tissue structures of the callitrichid masticatory apparatus have been studied to understand how gouging behavior in marmosets is facilitated by specific morphologies. While marmoset craniofacial anatomy indicates features that likely enable relatively wider gapes compared to non-gouging tamarins, these studies have largely failed to demonstrate morphologies that assist in generating or resisting relatively large bite forces. A previous comparison of condylar trabeculae between adult gouging and non-gouging platyrrhines found that marmoset condylar trabeculae may be less robust than non-gougers. We extend this work by comparing the ontogeny of condylar trabecular morphology in gouging marmosets versus non-gouging tamarins.
We collected µCT images of the mandibular condyles of 13 adult and 7 neonatal common marmosets (Callithrix jacchus) and 9 adult and 6 neonatal cotton-top tamarins (Saguinus oedipus) at a voxel resolution of 20.5 µm. We processed the entire condylar trabecular volume in Avizo 8.0 and measured several trabecular metrics in BoneJ. We compared trabecular features across ontogeny and between species.
We found that C. jacchus undergoes a marked decrease in bone volume fraction during ontogeny, while S. oedipus experiences a slight increase. Both species lose connectivity with age; C. jacchus more markedly than S. oedipus. While trabeculae in both species are more spaced in adults, this change is more marked in C. jacchus. Collectively, we see little evidence in marmosets for age-related increases in load-resistance abilities in the condylar trabeculae further supporting the argument that marmosets are not adapted for generating relatively large bite forces during gouging.
NSF BCS-0959438, BCS-0412153
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
NEOMED College of Medicine
NEOMED College of Medicine Student
NEOMED Student Publications
Siegel N D
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.
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n/a
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Pages
296-296
Volume
159
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Title
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Relative tooth size at birth in primates: Life history and dietary correlates
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American Journal of Physical Anthropology
Date
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2016
2016-03
Subject
The topic of the resource
Anthropology; Evolutionary Biology
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Smith T D; Muchlinski M N; Bonar C J; Evans S; Williams L; Vinyard C J; DeLeon V B
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n/a
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Journal Article
2016
American journal of physical anthropology
Anthropology
Bonar C J
DeLeon V B
Evans S
Evolutionary Biology
Journal Article
Muchlinski M N
Smith T D
Vinyard C J
Williams L
-
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.
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n/a
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Pages
258-258
Volume
165
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Tooth crown volume of subadult primates: a methodology for measuring age-related changes
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American Journal of Physical Anthropology
Date
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2018
2018-04
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The topic of the resource
Anthropology; Evolutionary Biology
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An entity primarily responsible for making the resource
Smith T D; Paddock K A; Zeigler L M; Hogg R T; Vinyard C J; DeLeon V B
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n/a
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Journal Article
2018
American journal of physical anthropology
Anthropology
DeLeon V B
Evolutionary Biology
Hogg R T
Journal Article
Paddock K A
Smith T D
Vinyard C J
Zeigler L M
-
Text
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n/a
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Pages
271-271
Volume
165
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Can we extend Kay's observation on the distinctiveness of bilophodonty among primates to include cercopithecine skull form, jaw-muscle fiber architecture and microwear?
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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
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An entity primarily responsible for making the resource
Taylor A B; Teaford M F; Vinyard C J
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n/a
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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.
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n/a
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Pages
1-1
Volume
24
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A name given to the resource
The functional correlates of jaw-muscle fiber architecture in primates
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Faseb Journal
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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
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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.
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n/a
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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
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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
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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.
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n/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
193-193
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A name given to the resource
Masseter muscle fiber architecture in tree-gouging (Callithrix jacchus) and non-gouging (Saguinus oedipus) callitrichids
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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
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An unambiguous reference to the resource within a given context
n/a
Format
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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
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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
269-269
Volume
150
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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 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
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
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
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
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
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
302-302
Volume
156
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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
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