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Feeding ecology and the trabecular structure of the mandibular condyle in extant primates
Descriptive
TitleInfo
Title
Feeding ecology and the trabecular structure of the mandibular condyle in extant primates
Name
(type = personal)
NamePart
(type = family)
Coiner-Collier
NamePart
(type = given)
Susan F.
NamePart
(type = date)
1985-
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Susan F. Coiner-Collier
Role
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(authority = RULIB)
author
Name
(type = personal)
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(type = family)
Scott
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(type = given)
Robert S
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Robert S Scott
Affiliation
Advisory Committee
Role
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(authority = RULIB)
chair
Name
(type = personal)
NamePart
(type = family)
Cachel
NamePart
(type = given)
Susan M
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Susan M Cachel
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Vogel
NamePart
(type = given)
Erin R
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Erin R Vogel
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Ryan
NamePart
(type = given)
Timothy M
DisplayForm
Timothy M Ryan
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
outside member
Name
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NamePart
Rutgers University
Role
RoleTerm
(authority = RULIB)
degree grantor
Name
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NamePart
Graduate School - New Brunswick
Role
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(authority = RULIB)
school
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Text
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theses
OriginInfo
DateCreated
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2015
DateOther
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(type = degree)
2015-10
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2015
Place
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xx
Language
LanguageTerm
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(type = code)
eng
Abstract
(type = abstract)
No straightforward functional relationship has been established between jaw morphology and diet in extant primates despite much research devoted to this issue. Food preparation and ingestion serve to load the mandible, and because of known remodeling responses to increased mandibular strain, the expectation is that higher mechanical loads generated by mechanically challenging foods and/or repetitive loading cycles should produce changes in mandibular morphology. This dissertation examines the relationship between primate mandibular morphology—specifically, the internal trabecular structure of the mandibular condyle—and two aspects of feeding ecology: food mechanical properties (FMPs) and time spent feeding. Because dietary FMPs influence chewing behavior, more mechanically challenging foods and/or increased repetitive loading cycles are expected to produce denser and/or more anisotropic trabecular bone within the mandibular condyle. I used high-resolution X-ray computed tomography (HRXCT) to image 28 anthropoid primate mandibles, and compared the results of trabecular analyses to data on FMPs and feeding time. My results demonstrated a strong relationship between dietary toughness and trabecular anisotropy. As toughness increases, trabecular bone within the mandibular condyle becomes more anisotropic. Toughness is associated with fiber content, and fiber requires greater durations of oral processing; tougher foods may thus require a greater total number of chewing cycles, and this increased overall load appears to be associated with a functional response within the condyle. Similarly, average daily time spent feeding is associated with trabecular thickness and trabecular number, although these relationships are not as strong as that between anisotropy and toughness and are modulated by changes in body size. In accordance with previous studies of the mammalian mandibular condyle, my results showed that trabecular bone within the mandibular condyle is oriented to maximally resist the compressive forces associated with mastication. Taken together, these results support a functional dietary signal in the trabecular structure of the primate mandibular condyle. FMPs and feeding time are associated with changes in trabecular orientation and volume fraction.
Subject
(authority = RUETD)
Topic
Anthropology
Subject
(authority = ETD-LCSH)
Topic
Mandibular condyle
Subject
(authority = ETD-LCSH)
Topic
Food--Analysis
RelatedItem
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
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ETD
Identifier
ETD_6704
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electronic resource
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application/pdf
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text/xml
Extent
1 online resource (xii, 202 p. : ill.)
Note
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Ph.D.
Note
(type = bibliography)
Includes bibliographical references
Note
(type = statement of responsibility)
by Susan F. Coiner-Collier
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TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
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rucore19991600001
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(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier
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doi:10.7282/T3HD7XKB
Genre
(authority = ExL-Esploro)
ETD doctoral
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Rights
RightsDeclaration
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The author owns the copyright to this work.
RightsHolder
(type = personal)
Name
FamilyName
Coiner-Collier
GivenName
Susan
MiddleName
F.
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
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2015-09-04 12:08:40
AssociatedEntity
Name
Susan Coiner-Collier
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
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Type
License
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Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
RightsEvent
DateTime
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(qualifier = exact);
(point = start)
2015-10-31
DateTime
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2016-10-30
Type
Embargo
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after October 30th, 2016.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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ContentModel
ETD
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windows xp
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