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Multidimensional niche approach reveals constraints over the elemental content of animals
Descriptive
TitleInfo
Title
Multidimensional niche approach reveals constraints over the elemental content of animals
Name
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Kelly
NamePart
(type = given)
Morgan
NamePart
(type = date)
1991-
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Morgan Kelly
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(authority = RULIB)
author
Name
(type = personal)
NamePart
(type = family)
González
NamePart
(type = given)
Angélica L
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Angélica L González
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Advisory Committee
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chair
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Yakoby
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Nir
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Nir Yakoby
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Advisory Committee
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internal member
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(type = family)
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Jongmin
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Jongmin Nam
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Advisory Committee
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internal member
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Rutgers University
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degree grantor
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Camden Graduate School
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school
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theses
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2019
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2019-05
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2019
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English
Abstract
The wide spectrum of phenotypic diversity found in life on Earth is a result of both environmental and evolutionary drivers. Functional traits are those elements of organismal phenotypes which have an effect on the organism’s performance. Specific trait combinations can reveal ecological strategies that evolved in response to selection pressures. The elemental content of living organisms (carbon (C), nitrogen (N), and phosphorus (P)), represent key functional traits that have a strong influence over organismal form and function. Using a global database of stoichiometric traits of animals from terrestrial, freshwater and marine habitats (n > 5000), I applied hypervolume trait approaches to quantify the overall size and shape of the stoichiometric space of animals to determine differences in stoichiometric niche between animals inhabiting different habitats and animals occupying different trophic guilds. I found that the observed multidimensional trait space of animals was significantly smaller than the potential niche space under null expectations and displayed an elliptical shape due to a significant correlation between C and N contents and independent variation of P content. The stoichiometric trait space of invertebrates and vertebrates occupying different habitats and from trophic guilds varied in their size and shape but displayed significant degrees of overlap suggesting evolutionary constraint over stoichiometric traits. These findings suggest that stoichiometric traits may be evolutionarily conserved in animals because regardless of the habitat in which the animals lived or the trophic guild they occupied, they did not evolve to occupy adjacent space, but overlapped in a large portion of their niche space. We argue that due to these evolutionary constraints, animals converge towards a limited amount of successful stoichiometric trait combinations resulting from trade-offs and covariance.
Subject
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Topic
Stoichiometric niche
Subject
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Topic
Biology
Subject
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Topic
Phenotype
Subject
(authority = ETD-LCSH)
Topic
Evolution
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Rutgers University Electronic Theses and Dissertations
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ETD_10026
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application/pdf
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text/xml
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1 online resource (iii, 28 pages) : illustrations
Note
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M.S.
Note
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Includes bibliographical references
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TitleInfo
Title
Camden Graduate School Electronic Theses and Dissertations
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rucore10005600001
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NjNbRU
Identifier
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doi:10.7282/t3-kcsf-8g40
Genre
(authority = ExL-Esploro)
ETD graduate
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Rights
RightsDeclaration
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The author owns the copyright to this work.
RightsHolder
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Name
FamilyName
Kelly
GivenName
Morgan
Role
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Permission or license
DateTime
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2019-05-09 15:54:05
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Name
Morgan Kelly
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Affiliation
Rutgers University. Camden Graduate School
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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.
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Embargo
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2019-05-31
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2019-11-30
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after November 30th, 2019.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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