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40
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Text
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<a href="http://doi.org/10.1371/journal.pone.0091719" target="_blank" rel="noreferrer noopener">http://doi.org/10.1371/journal.pone.0091719</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
12-12
Issue
3
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
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To 3d Or Not To 3d, That Is The Question: Do 3d Surface Analyses Improve The Ecomorphological Power Of The Distal Femur In Placental Mammals?
Publisher
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Plos One
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
anatomy; behavior; carnivorans; corpus; discriminant function-analysis; evolution; functional-morphology; hindlimb; locomotor; ratios; rodents; Science & Technology - Other Topics
Creator
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Gould F D H
Description
An account of the resource
Improvements in three-dimensional imaging technologies have renewed interest in the study of functional and ecological morphology. Quantitative approaches to shape analysis are used increasingly to study form-function relationships. These methods are computationally intensive, technically demanding, and time-consuming, which may limit sampling potential. There have been few side-by-side comparisons of the effectiveness of such approaches relative to more traditional analyses using linear measurements and ratios. Morphological variation in the distal femur of mammals has been shown to reflect differences in locomotor modes across clades. Thus I tested whether a geometric morphometric analysis of surface shape was superior to a multivariate analysis of ratios for describing ecomorphological patterns in distal femoral variation. A sample of 164 mammalian specimens from 44 genera was assembled. Each genus was assigned to one of six locomotor categories. The same hypotheses were tested using two methods. Six linear measurements of the distal femur were taken with calipers, from which four ratios were calculated. A 3D model was generated with a laser scanner, and analyzed using three dimensional geometric morphometrics. Locomotor category significantly predicted variation in distal femoral morphology in both analyses. Effect size was larger in the geometric morphometric analysis than in the analysis of ratios. Ordination reveals a similar pattern with arboreal and cursorial taxa as extremes on a continuum of morphologies in both analyses. Discriminant functions calculated from the geometric morphometric analysis were more accurate than those calculated from ratios. Both analysis of ratios and geometric morphometric surface analysis reveal similar, biologically meaningful relationships between distal femoral shape and locomotor mode. The functional signal from the morphology is slightly higher in the geometric morphometric analysis. The practical costs of conducting these sorts of analyses should be weighed against potentially slight increases in power when designing protocols for ecomorphological studies.
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<a href="http://doi.org/10.1371/journal.pone.0091719" target="_blank" rel="noreferrer noopener">10.1371/journal.pone.0091719</a>
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The file format, physical medium, or dimensions of the resource
Journal Article or Conference Abstract Publication
2014
anatomy
Behavior
carnivorans
corpus
discriminant function-analysis
Evolution
functional-morphology
Gould F D H
hindlimb
Journal Article or Conference Abstract Publication
locomotor
PloS one
ratios
Rodents
Science & Technology - Other Topics
-
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/B978-0-12-818969-6.00010-8" target="_blank" rel="noreferrer noopener">http://doi.org/10.1016/B978-0-12-818969-6.00010-8</a>
Pages
137-149
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<a href="http://neomed.idm.oclc.org/login?url=http://doi.org/10.1016/B978-0-12-818969-6.00010-8" target="_blank" rel="noreferrer noopener">NEOMED Full-text Holding (if available) - Proxy DOI: 10.1016/B978-0-12-818969-6.00010-8</a>
<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>
Update Year & Number
January 2021 List
NEOMED College
NEOMED College of Medicine
NEOMED Department
Department of Anatomy & Neurobiology
Dublin Core
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Title
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Chapter 10 - Postcranial skeleton and musculature
Publisher
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The Bowhead Whale
Date
A point or period of time associated with an event in the lifecycle of the resource
2021
2021-01-01
Subject
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forelimb; myology; Bowhead whale; muscles; skeleton; Balaena mysticetus; hindlimb;
Creator
An entity primarily responsible for making the resource
Thewissen JGM; Hillmann DJ; George JC; Tarpley RJ; Sheffield Gay; Stimmelmayr R; Suydam RS
Description
An account of the resource
The postcranial skeleton of bowhead whales was described in detail more than 100 years ago. The musculature of bowheads has not been studied in detail but matches that of other mysticetes in general features. In this chapter, we focus on some aspects of the skeleton that differs from that of other cetaceans. First, the skeleton of bowheads changes with ontogenetic age. Some of these changes are gross-morphologically, while others are biochemical and histological. Several are related to the life history of the species. Our discussion focuses on the changes in the morphology of the cervical vertebral column, the ontogenetic variation in carpals, and the variation in the hind limb. Individuals with external hind limbs occur infrequently, but there is a great variation in the size of ox coxae, femur, and tibia.
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<a href="http://doi.org/10.1016/B978-0-12-818969-6.00010-8" target="_blank" rel="noreferrer noopener"></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
2021
Balaena mysticetus
bowhead whale
Department of Anatomy & Neurobiology
Forelimb
George JC
Hillmann DJ
hindlimb
January 2021 List
journalArticle
Muscles
myology
NEOMED College of Medicine
Sheffield Gay
Skeleton
Stimmelmayr R
Suydam RS
Tarpley RJ
The Bowhead Whale
Thewissen JGM
-
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
<table width="91" style="border-collapse:collapse;width:408px;"><colgroup><col width="91" style="width:68pt;" /></colgroup><tbody><tr style="height:15pt;"><td width="91" height="20" class="xl18" style="width:68pt;height:15pt;"><a href="http://doi.org/10.1016/B978-0-12-818969-6.00010-8">http://doi.org/10.1016/B978-0-12-818969-6.00010-8</a></td>
</tr></tbody></table>
Pages
137-149
NEOMED College
NEOMED College of Medicine
NEOMED Department
Department of Anatomy & Neurobiology
Update Year & Number
Jan to Aug list 2021
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
Chapter 10 - Postcranial skeleton and musculature
Creator
An entity primarily responsible for making the resource
Thewissen JGM; Hillmann DJ; George JC; Tarpley RJ; Sheffield Gay; Stimmelmayr R; Suydam RS
Publisher
An entity responsible for making the resource available
The Bowhead Whale
Date
A point or period of time associated with an event in the lifecycle of the resource
2021
Description
An account of the resource
The postcranial skeleton of bowhead whales was described in detail more than 100 years ago. The musculature of bowheads has not been studied in detail but matches that of other mysticetes in general features. In this chapter, we focus on some aspects of the skeleton that differs from that of other cetaceans. First, the skeleton of bowheads changes with ontogenetic age. Some of these changes are gross-morphologically, while others are biochemical and histological. Several are related to the life history of the species. Our discussion focuses on the changes in the morphology of the cervical vertebral column, the ontogenetic variation in carpals, and the variation in the hind limb. Individuals with external hind limbs occur infrequently, but there is a great variation in the size of ox coxae, femur, and tibia.
Identifier
An unambiguous reference to the resource within a given context
<table width="91" style="border-collapse:collapse;width:405px;"><colgroup><col width="91" style="width:68pt;" /></colgroup><tbody><tr style="height:15pt;"><td width="91" height="20" class="xl18" style="width:68pt;height:15pt;"><a href="http://doi.org/10.1016/B978-0-12-818969-6.00010-8">http://doi.org/10.1016/B978-0-12-818969-6.00010-8</a></td>
</tr></tbody></table>
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Format
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Book Chapter
2021
Balaena mysticetus
bowhead whale
Forelimb
hindlimb
Muscles
myology
Skeleton