Search

Spring 2011

Dombroskie, Jason

The economically important tribe Archipini (Lepidoptera: Tortricidae) has posed many taxonomic challenges, ranging from species and generic boundaries to their overall phylogeny. In Chapter 2, the species Clepsis anderslaneyii Dombroskie & Brown 2009, is described based upon material from...

Fall 2022

Wingert, Brittany Denee

Species delimitation can be challenging, especially in taxonomic groups that exhibit little morphological divergence. Many techniques and concepts have been developed for detecting species boundaries, and molecular methods are becoming increasingly common. Next generation sequencing techniques...

Fall 2012

Leo, Sarah S. T.

Dermacentor albipictus (Packard) is an obligate, hematophagous ectoparasite commonly found on large ungulates in North America. At high infestation levels, the winter tick is known to cause severe pathology and may transmit diseases to its hosts. Knowledge of the genetic diversity in this...

Fall 2014

Brunet, Bryan TM

The spruce budworm (Choristoneura fumiferana) species complex is a destructive group of insect defoliators of North American conifers that have a remarkable propensity to hybridize ex situ despite little evidence for hybridization in nature. Introgression between species is increasingly...

Fall 2015

McDonald, Christianne M

Speciation can be an elaborate process. Delimiting species and reconstructing evolutionary relationships may be similarly complex, revealing gene tree discordance, cryptic species, geographic structuring or hybridization. In order to solve such systematic problems, a careful balance should be...

Spring 2020

Campbell, Erin

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...

Fall 2020

Shegelski, Victor A

Dispersal by flight is a complex life history phase in many insects that is essential to gene flow and range expansion. Many elements contribute to realized dispersal, including biotic and abiotic environmental conditions, as well as intrinsic factors such as morphology, physiology and behavior....

Fall 2013

Bird, Heather M

The phylogenetic relationships of the destructive spruce budworm group of forest pests (Choristoneura fumiferana species complex) have previously been explored using allozymes, microsatellites, mitochondrial genes and a nuclear gene, but remain poorly resolved with conflicting topologies. I used...

Fall 2010

Lumley, Lisa Margaret

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...

Fall 2013

Schwarzfeld, Marla Dahlie

Ichneumonidae are the most species-rich family of parasitic Hymenoptera and are important for regulating populations of other arthropods. However, with an estimated 75% of species undescribed, we lack fundamental information about their taxonomy, ecology, and distributions. Using two different...