1
40
3
-
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.10951" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/jmor.10951</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
833-849
Issue
7
Volume
272
Search for Full-text
Locate full-text within NEOMED Library's e-journal collections
<p>Users with a NEOMED Library login can search for full-text journal articles at the following url: <a href="https://libraryguides.neomed.edu/home">https://libraryguides.neomed.edu/home</a></p>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
The Functional Morphology Of The Anterior Masticatory Apparatus In Tree-gouging Marmosets (cebidae, Primates)
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
2011
2011-07
Subject
The topic of the resource
adductor muscle force; Anatomy & Morphology; bone; callithrix-jacchus; callitrichines; decussation; dental enamel; dietary; distribution; exudativory; fiber architecture; iterative selection method; mandible; mandibular form; stress; symphyseal fusion; teeth; thickness
Creator
An entity primarily responsible for making the resource
Hogg R T; Ravosa M J; Ryan T M; Vinyard C J
Description
An account of the resource
Although all genera of Callitrichinae feed on tree exudates, marmosets (Callithrix and Cebuella) use specialized anterior teeth to gouge holes in trees and actively stimulate exudate flow. Behavioral studies demonstrate that marmosets use large jaw gapes but do not appear to generate large bite forces (relative to maximal ability) during gouging. Nonetheless, the anterior teeth of marmosets likely experience different loads during gouging compared to nongouging platyrrhines. We use histological data from sectioned teeth, mu CTs of jaws and teeth, and in vitro tests of symphyseal strength to compare the anterior masticatory apparatus in Callithrix to nongouging tamarins (Saguinus) and other cebids. We test the hypotheses that (1) marmoset anterior teeth are adapted to accommodate relatively high stresses linked to dissipating gouging forces and (2) the mandibular symphysis does not provide increased load resistance ability compared with closely related nongouging platyrrhines. Differences in decussation between Callithrix and Saguinus are greatest in the anterior teeth, suggesting an increased load resistance ability specifically in incisor and canine enamel of Callithrix. Callithrix lower incisor crowns are labiolingually thicker suggesting increased bending resistance in this plane and improved wedging ability compared with Saguinus. Anterior tooth roots are larger relative to symphyseal bone volume in Callithrix. Anterior tooth root surface areas also are larger in marmosets for their symphyseal volume, but it remains unclear whether this relative increase is an adaptation for dissipating dental stresses versus a growth-related byproduct of relatively elongated incisors. Finally, simulated jaw loading suggests a reduced ability to withstand external forces in the Callithrix symphysis. The contrast between increased load resistance ability in the anterior dentition versus relatively reduced symphyseal strength (1) suggests a complex loading environment during gouging, (2) highlights the possibility of distinct loading patterns in the anterior teeth versus the symphysis, and (3) points to a potential mosaic pattern of dentofacial adaptations to tree gouging. J. Morphol. 272:833-849, 2011. (C) 2011 Wiley-Liss, Inc.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1002/jmor.10951" target="_blank" rel="noreferrer noopener">10.1002/jmor.10951</a>
Format
The file format, physical medium, or dimensions of the resource
Journal Article or Conference Abstract Publication
2011
adductor muscle force
Anatomy & Morphology
Bone
callithrix-jacchus
callitrichines
decussation
dental enamel
Dietary
distribution
Exudativory
fiber architecture
Hogg R T
iterative selection method
Journal Article or Conference Abstract Publication
Journal of morphology
Mandible
mandibular form
Ravosa M J
Ryan T M
Stress
symphyseal fusion
Teeth
thickness
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/s10764-012-9647-7" 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
Search for Full-text
Locate full-text within NEOMED Library's e-journal collections
<p>Users with a NEOMED Library login can search for full-text journal articles at the following url: <a href="https://libraryguides.neomed.edu/home">https://libraryguides.neomed.edu/home</a></p>
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
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/10.1002/ajpa.20991" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ajpa.20991</a>
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
353-367
Issue
3
Volume
139
Search for Full-text
Locate full-text within NEOMED Library's e-journal collections
<p>Users with a NEOMED Library login can search for full-text journal articles at the following url: <a href="https://libraryguides.neomed.edu/home">https://libraryguides.neomed.edu/home</a></p>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
The Functional Correlates of Jaw-Muscle Fiber Architecture in Tree-Gouging and Nongouging Callitrichid Monkeys
Publisher
An entity responsible for making the resource available
American Journal of Physical Anthropology
Date
A point or period of time associated with an event in the lifecycle of the resource
2009
2009-07
Subject
The topic of the resource
Anthropology; arboreal guenons; bite force; callitrichids; cross-sectional area; Evolutionary Biology; Exudativory; Fiber length; gape; internal architecture; jaw; marmosets; masseter muscle; morphology; physiologic cross-sectional area; rabbit oryctolagus-cuniculus; sarcomere-length; skeletal-muscle; tamarins; temporalis muscle; world monkeys
Creator
An entity primarily responsible for making the resource
Taylor A B; Eng C M; Anapol F C; Vinyard C J
Description
An account of the resource
Common (Callithrix jacchus) and pygmy (Cebuella pygmaea) marmosets and cotton-top tamarins (Saguinus oedipus) share broadly similar diets of fruits, insects, and tree exudates. Marmosets, however, differ from tamarins in actively gouging trees with their anterior dentition to elicit tree exudates flow. Tree gouging in common marmosets involves the generation of relatively wide jaw gapes, but not necessarily relatively large bite forces. We compared fiber architecture of the masseter and temporalis muscles in C. jacchus (N = 18), C. pygmaea (N = 5), and S. oedipus (N = 13). We tested the hypothesis that tree-gouging marmosets would exhibit relatively longer fibers and other architectural variables that facilitate muscle stretch, As an architectural trade-off between maximizing muscle excursion/contraction velocity and muscle force, we also tested the hypothesis that marmosets would exhibit relatively less pinnate fibers, smaller physiologic cross-sectional areas (PCSA), and lower priority indices (I) for force. As predicted, marmosets display relatively longer-fibered muscles, a higher ratio of fiber length to muscle mass, and a relatively greater potential excursion of the distal tendon attachments, all of which favor muscle stretch. Marmosets further display relatively smaller PCSAs and other features that reflect a reduced capacity for force generation. The longer fibers and attendant higher contraction velocities likely facilitate the production of relatively wide jaw gapes and the capacity to generate more power from their jaw muscles during gouging. The observed functional trade-off between muscle excursion/contraction velocity and muscle force suggests that primate jaw-muscle architecture reflects evolutionary changes related to jaw movements as one of a number of functional demands imposed on the masticatory apparatus. Am J Phys Anthropol 139:353-367, 2009. (C) 2009 Wiley-Liss, Inc.
Identifier
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