1
40
2
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Text
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<a href="http://doi.org/10.1002/ajpa.24048" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ajpa.24048</a>
Pages
322-336
Issue
2
Volume
173
ISSN
29483
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Update Year & Number
September 2020 List
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
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Mandibular symphyseal fusion in fossil primates: Insights from correlated patterns of jaw shape and masticatory function in living primates.
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
2020
2020-10
Subject
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fusion; mandible; PRIMATES; geometric morphometrics; symphysis; ELECTROMYOGRAPHY; LEMURS; MANDIBLE; MORPHOMETRICS
Creator
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Knigge RP;Vinyard CJ;McNulty KP
Description
An account of the resource
Objectives: Variation in primate masticatory form and function has been extensively researched through both morphological and experimental studies. As a result, symphyseal fusion in different primate clades has been linked to either the recruitment of vertically directed balancing‐side muscle force, the timing and recruitment of transversely directed forces, or both. This study investigates the relationship between jaw muscle activity patterns and morphology in extant primates to make inferences about masticatory function in extinct primates, with implications for understanding the evolution of symphyseal fusion. Materials and methods: Three‐dimensional mandibular landmark data were collected for 31 extant primates and nine fossil anthropoids and subfossil lemur species. Published electromyography (EMG) data were available for nine of the extant primate species. Partial least squares analysis and phylogenetic partial least squares analysis were used to identify relationships between EMG and jaw shape data and evaluate variation in jaw morphology. Results: Primates with partial and complete symphyseal fusion exhibit shape‐function patterns associated with the wishboning motor pattern and loading regime, in contrast to shape‐function patterns of primates with unfused jaws. All fossil primates examined (except Apidium) exhibit jaw morphologies suggestive of the wishboning motor pattern demonstrated in living anthropoids and indriids. Discussion Partial fusion in Catopithecus, similar to indriids and some subfossil lemurs, may be sufficient to resist, or transfer, some amounts of transversely directed balancing‐side muscle force at the symphysis, representing a transition to greater reliance on transverse jaw movement during mastication. Furthermore, possible functional convergences in physiological patterns during chewing (i.e., Archaeolemur) are identified. [ABSTRACT FROM AUTHOR]
Identifier
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<a href="http://doi.org/10.1002/ajpa.24048" target="_blank" rel="noreferrer noopener">10.1002/ajpa.24048</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).
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journalArticle
2020
American journal of physical anthropology
Department of Anatomy & Neurobiology
Electromyography
fusion
geometric morphometrics
journalArticle
Knigge RP
lemurs
Mandible
McNulty KP
Morphometrics
NEOMED College of Medicine
Primates
September 2020 List
symphysis
Vinyard CJ
-
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/ar.23064" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/ar.23064</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
328-333
Issue
1
Volume
298
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<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
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Morphometry, Geometry, Function, and the Future
Publisher
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Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology
Date
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2015
2015-01
Subject
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Anatomy & Morphology; evolution; morphology; performance; primates; darwins finches; adaptation; selection; form; evolutionary; fitness; shape; biological anthropology; geometric morphometrics
Creator
An entity primarily responsible for making the resource
McNulty K P; Vinyard C J
Description
An account of the resource
The proliferation of geometric morphometrics (GM) in biological anthropology and more broadly throughout the biological sciences has resulted in a multitude of studies that adopt landmark-based approaches for addressing a variety of questions in evolutionary morphology. In some cases, particularly in the realm of systematics, the fit between research question and analytical design is quite good. Functional-adaptive studies, however, do not readily conform to the methods available in the GM toolkit. The symposium organized by Terhune and Cooke entitled Assessing function via shape: What is the place of GM in functional morphology? held at the 2013 meetings of the American Association of Physical Anthropologists was designed specifically to explore this relationship between landmark-based methods and analyses of functional morphology, and the articles in this special issue, which stem in large part from this symposium, provide numerous examples of how the two approaches can complement and contrast each other. Here, we underscore some of the major difficulties in interpreting GM results within a functional regime. In combination with other contributions in this issue, we identify emerging areas of research that will help bridge the gap between multivariate morphometry and functional-adaptive analysis. Ultimately, neither geometric nor functional morphometric approaches is sufficient to elaborate the adaptive pathways that explain morphological evolution through natural selection. These perspectives must be further integrated with research from physiology, developmental biology, genomics, and ecology. Anat Rec, 298:328-333, 2015. (c) 2014 Wiley Periodicals, Inc.
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<a href="http://doi.org/10.1002/ar.23064" target="_blank" rel="noreferrer noopener">10.1002/ar.23064</a>
Format
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Journal Article or Conference Abstract Publication
2015
Adaptation
Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology
Anatomy & Morphology
biological anthropology
darwins finches
Evolution
evolutionary
fitness
form
geometric morphometrics
Journal Article or Conference Abstract Publication
McNulty K P
morphology
Performance
Primates
Selection
shape
Vinyard C J