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Understanding bimaturism: the influence of social conditions, energy intake, and endocrinological status on flange development in Bornean orangutans (Pongo pygmaeus wurmbii)

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TitleInfo
Title
Understanding bimaturism: the influence of social conditions, energy intake, and endocrinological status on flange development in Bornean orangutans (Pongo pygmaeus wurmbii)
Name (type = personal)
NamePart (type = family)
Prasetyo
NamePart (type = given)
Didik
NamePart (type = date)
1978-
DisplayForm
Didik Prasetyo
Role
RoleTerm (authority = RULIB)
author
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)
chair
Name (type = personal)
NamePart (type = family)
John-Alder
NamePart (type = given)
Henry
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Henry John-Alder
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Scott
NamePart (type = given)
Robert S
DisplayForm
Robert S Scott
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Utami-Atmoko
NamePart (type = given)
Sri S
DisplayForm
Sri S Utami-Atmoko
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
outside member
Name (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (type = corporate)
NamePart
School of Graduate Studies
Role
RoleTerm (authority = RULIB)
school
TypeOfResource
Text
Genre (authority = marcgt)
theses
OriginInfo
DateCreated (encoding = w3cdtf); (keyDate = yes); (qualifier = exact)
2019
DateOther (encoding = w3cdtf); (qualifier = exact); (type = degree)
2019-10
CopyrightDate (encoding = w3cdtf); (qualifier = exact)
2019
Language
LanguageTerm (authority = ISO 639-3:2007); (type = text)
English
Abstract (type = abstract)
Bimaturism in orangutans is defined as two different secondary sexual characteristics of a mature male, unflanged and flanged. Bimaturism has been hypothesized to be condition-dependent, which includes how social interactions, energetic status, and physiological status regulate flange development. Yet we still have little understanding of what triggers the development of secondary sexual characteristics in adult males and why there is such of variation in the timing of flanging. This study examined relationships between social behavior, energy intake, and endocrinological hormones to flange development in Bornean orangutans (Pongo pygmaeus wurmbii). By quantifying the orangutans’ flange size from three different male’s developmental stages (unflanged, developing flange, and flanged), I observed that 1) Bimaturism in orangutans is provoked by social interactions. Social interactions were related to the size of the orangutans’ flange such that males with smaller flanges tended to have greater interactions. Moreover, the amount of social interactions was related to the cortisol production in males with greater flange size. 2) Bimaturism in orangutans is not nutrient-dependent. Total energy intake did not differ among developmental stages and by accounting body mass per Kg, flanged males tended to have the lowest energy intake compared to other stages. 3) Bimaturism in orangutans seems to be influenced by endocrinological status. High testosterone levels were correlated to the flange development, and elevated cortisol levels were highest in unflanged males and may have inhibited flange development.
Subject (authority = RUETD)
Topic
Ecology and Evolution
Subject (authority = LCSH)
Topic
Bornean orangutan -- Development -- Endocrine aspects
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
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ETD_10342
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application/pdf
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text/xml
Extent
1 online resource (xv, 147 pages) : illustrations
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references
RelatedItem (type = host)
TitleInfo
Title
School of Graduate Studies Electronic Theses and Dissertations
Identifier (type = local)
rucore10001600001
Location
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NjNbRU
Identifier (type = doi)
doi:10.7282/t3-69nv-7813
Genre (authority = ExL-Esploro)
ETD doctoral
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Rights

RightsDeclaration (ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
Prasetyo
GivenName
Didik
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2019-09-29 22:51:29
AssociatedEntity
Name
Didik Prasetyo
Role
Copyright holder
Affiliation
Rutgers University. School of Graduate Studies
AssociatedObject
Type
License
Name
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
Type
Embargo
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2019-10-31
DateTime (encoding = w3cdtf); (qualifier = exact); (point = end)
2020-10-30
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after October 30th, 2020.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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ETD
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windows xp
DateCreated (point = end); (encoding = w3cdtf); (qualifier = exact)
2019-11-12T11:48:14
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1.7
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