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Ecology and Evolutionary Biology

Dissertations, Theses, and Masters Projects

Articles 1 - 9 of 9

Full-Text Articles in Cell and Developmental Biology

Speciation Dynamics Of Diverging Allopolyploid Monkeyflower (Mimulus), Caroline Victoria Schlutius Jan 2020

Speciation Dynamics Of Diverging Allopolyploid Monkeyflower (Mimulus), Caroline Victoria Schlutius

Dissertations, Theses, and Masters Projects

Our understanding of speciation has been greatly improved with advances in genomic technology, but most of our knowledge of speciation is still built on research of diploid systems. Polyploids, however, are found in many lineages across the tree of life and exhibit considerably different evolutionary dynamics than diploids. Here, we investigate patterns of population structure and divergence in a system of two allopolyploid species of Mimulus (monkeyflower) that occur sympatrically in Chile: M. luteus and M. cupreus. We find that while the two species have consistent phenotypic differences across the range, they are genetically clustered into a northern and southern …


Phylogeny, Ontogeny And Distribution Of The Ribbonfishes (Lampridiformes: Trachipteridae), Jennifer M. Martin Jan 2015

Phylogeny, Ontogeny And Distribution Of The Ribbonfishes (Lampridiformes: Trachipteridae), Jennifer M. Martin

Dissertations, Theses, and Masters Projects

The ribbonfish family Trachipteridae (Lampridiformes) includes three well-defined genera (Trachipterus, Desmodema, and Zu), which are distributed worldwide throughout the pelagic marine environment as with most families of Lampridiformes, drastic changes in morphology occur throughout ontogeny due to extreme allometric growth. Combined with the rarity of specimens, this has led to the description of different life history stages as different species, rather than as part of the ontogenetic continuum of a single species. There is significant uncertainty concerning the ontogeny, distribution, nomenclature, number and phylogenetic affinity of trachipterid and other lampridiform genera.;The first chapter of my dissertation is a taxonomic review …


Understanding The Origins, Dispersal, And Evolution Of Bonamia Species (Phylum Haplosporidia) Based On Genetic Analyses Of Ribosomal Rna Gene Regions, Kristina M. Hill Jan 2011

Understanding The Origins, Dispersal, And Evolution Of Bonamia Species (Phylum Haplosporidia) Based On Genetic Analyses Of Ribosomal Rna Gene Regions, Kristina M. Hill

Dissertations, Theses, and Masters Projects

No abstract provided.


Evolutionary Analysis Of The Glutamic Acid Decarboxylase 67 Immediate Upstream Region In African Clawed Frogs, Jonathan Lomax Boyd Jan 2009

Evolutionary Analysis Of The Glutamic Acid Decarboxylase 67 Immediate Upstream Region In African Clawed Frogs, Jonathan Lomax Boyd

Dissertations, Theses, and Masters Projects

No abstract provided.


A Molecular Phylogeny Of The Genus Bonamia Based On Sequence Data Of The Ribosomal Rna (Rrna) Gene Complex, Delonna M. White Jan 2008

A Molecular Phylogeny Of The Genus Bonamia Based On Sequence Data Of The Ribosomal Rna (Rrna) Gene Complex, Delonna M. White

Dissertations, Theses, and Masters Projects

No abstract provided.


Population Genetic Structure Of Escolar (Lepidocybium Flavobrunneum) And A Molecular Phylogeny Of The Trichiuroidea, Kirsten Brendtro Jan 2006

Population Genetic Structure Of Escolar (Lepidocybium Flavobrunneum) And A Molecular Phylogeny Of The Trichiuroidea, Kirsten Brendtro

Dissertations, Theses, and Masters Projects

No abstract provided.


Phylogenetic Implications Of Sporangial Ultrastructure In The Subfamily Lithophylloideae (Corallinales, Rhodophyta), Mark T. Bedell Jan 1999

Phylogenetic Implications Of Sporangial Ultrastructure In The Subfamily Lithophylloideae (Corallinales, Rhodophyta), Mark T. Bedell

Dissertations, Theses, and Masters Projects

No abstract provided.


Phylogeny Of The Haplosporidia (Eukaryota: Alveolata) Based On Small Subunit Ribosomal Rna Gene Sequence, Brenda Sandy Flores Jan 1996

Phylogeny Of The Haplosporidia (Eukaryota: Alveolata) Based On Small Subunit Ribosomal Rna Gene Sequence, Brenda Sandy Flores

Dissertations, Theses, and Masters Projects

No abstract provided.


The Evolutionary And Ecological Significance Of The Clutch Size Of The Osprey (Pandion Haliaetus), Christopher Hall Stinson Jan 1976

The Evolutionary And Ecological Significance Of The Clutch Size Of The Osprey (Pandion Haliaetus), Christopher Hall Stinson

Dissertations, Theses, and Masters Projects

No abstract provided.