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Skip to Search Results- 1Campbell, Erin
- 1Chen, X. Y.
- 1Dupuis, Julian R
- 1Fagua Gonzalez, Giovanny
- 1He, F. L.
- 1Jensen-Fontaine, Madeleine
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Molecular systematics of the greater fritillary butterflies (Nymphalidae: Speyeria): reduced representation sequencing, phylogeny, and incipient speciation
DownloadSpring 2020
Species delimitation and phylogenetic reconstruction are essential for understanding and categorizing lineage divergences, and ultimately species. Yet, because of the complexities underlying speciation, inferring these patterns and characterizing their sources has been a consistent challenge for...
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Fall 2017
Leafrollers moths are one of the most ecologically and economically important groups of herbivorous insects. These Lepidoptera are an ideal model for exploring the drivers that modulate the processes of diversification over time. This thesis analyzes the evolution of Choristoneura Lederer, a well...
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2009
Abstract: Speciation has been considered as a primary process contributing to species diversity, but its contribution to the diversity of local communities has not been fully appreciated. Based on the theory of classic island biogeography, we derived a model for the number of endemic species as a...
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Speciation and hybridization in the Old World swallowtail butterfly (Papilio machaon) species complex
DownloadSpring 2016
Species delimitation is fundamental to evolutionary biology. However the process is far from straightforward in systems with complex evolutionary histories, and the concept of species as taxonomic hypotheses is often overlooked in many biological disciplines. Here I investigate species...
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Spring 2017
A phenylarsenical, 3-nitro-4-hydroxyphenylarsonic acid (Roxarsone®, Rox), has been used extensively as a poultry feed additive for over 60 years. However, little is known about the concentrations of different arsenic species present in chicken meat as a consequence of feeding Rox to chickens....
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Species delimitation in the Choristoneura fumiferana species complex (Lepidoptera: Tortricidae)
DownloadFall 2010
Species identifications have been historically difficult in the economically important spruce budworm (Choristoneura fumiferana) pest complex. Morphological, ecological, behavioural, and genetic characters have been studied to try to understand the taxonomy of this group, but diagnostic character...
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Fall 2019
Temporal isolation contributes to ecological speciation in a diversity of insect taxa. Such prezygotic isolation can reduce or stop hybridization between closely related taxa or populations, leading to speciation. Within the spruce budworm (Choristoneura fumiferana) species complex, hybridization...
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Fall 2012
The most prevalent oxidation states of vanadium in nature are V(IV) and V(V). Toxicity of vanadium increases with increasing oxidation state. A high-performance-liquid-chromatography inductively-coupled-plasma mass-spectrometry method was optimized for the speciation of V(IV) and V(V). It was...