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Fall 2012

Williams, Bronwyn W.

Geographical limits of a species’ range are determined in part by the environmental tolerances of that species, and also by its past and current ability to colonize new areas. Range shifts are a common occurrence in the evolutionary history of almost all taxa; however, anthropogenically-mediated...

Fall 2016

Uherek, Christiane B

As resource exploitation and development expands in northern Canada, threats to the ecological integrity of freshwater systems increase. In Canada, developments that could negatively affect aquatic ecosystems require offsetting or compensation measures. As a result of diamond mine development, a...

Fall 2020

Grossi, Alexandra A.

All multicellular organisms host one or more species of symbiont. Endosymbionts of homeotherms experience relatively constant environments whereas those of ectotherms and all ectosymbionts experience variation in external environment. For ectosymbionts, both the presence of a host and a...

Fall 2013

Byers, Kaylee A.

Sexual dimorphism is prominent across animals. In addition to differences in size and colouration, the sexes may also differ in non-genitalic contact traits whereby the grasping morphologies of males are matched by either cooperative or resistant corresponding structures in females. Resistance...

Fall 2009

Boeckner, Matthew J.

Meiofauna are an abundant, diverse and important component of the marine biota, however, much of their ecology has been neglected. Despite their high densities, meiofaunal abundance is often patchy. Meiofauna present in high numbers at one site will often be less abundant in seemingly similar...

Fall 2022

Cook, Andrew

Feather mites (Acariformes: Sarcoptiformes: Analgoidea and Pterolichoidea) are a group of small arachnids that inhabit the feathers of nearly every species of bird. Life as ectosymbionts has shaped the morphology and ecology of feather mites, whose entire life cycles (from egg to adult) are...

Spring 2013

Wilson, Lindsey R

This mesocosm study investigates changes in aquatic invertebrate assemblages in response to iron application, a remediation treatment that inhibits internal phosphorus loading in culturally-eutrophied freshwaters. To determine the effects of ferric chloride application on aquatic invertebrates, I...

Fall 2024

Stormer, Hannah G

Terrestrial isopods (Isopoda: Oniscidea), also known as sowbugs or woodlice, are one of the few groups of crustaceans that include members fully adapted to a terrestrial lifestyle. Sowbugs are readily transported by human activity, and many species have been introduced worldwide. Potential...

Fall 2023

Franzova, Veronika A

Members of the genus Chaetogaster (Annelida: Clitellata: Naididae) are small oligochaete worms found in freshwater habitats around the world. Most are free living predators or omnivores, but members of one species group are symbionts of molluscs, particularly snails. Despite being a common...