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The Genetic Architecture of Life History in Drosophila
An organism’s entire life history - the timing of development, reproduction, senescence and death - can depend on the nature of selection for reproductive age. The outcome of selection will depend both on the particular ...
Linking courtship behaviour, colour perception and mate choice decisions in peafowl
Despite a long history of study showing that male courtship signals influence female mate choice in many species, we lack a good understanding of how females choose. What are the mechanisms of mate choice, and how do these ...
The evolutionary consequences of sperm senescence in Drosophila melanogaster
Sperm senescence, a decline in sperm quality caused by male ageing and by sperm ageing before or after copulation, may have fitness costs manifested as infertility or lowered genetic quality of offspring. This thesis tested ...
Changes in Scaled-Chrsyophyte Assemblages in Response to Recent Climate Change in Northwestern Ontario
A two-part paleolimnological study was conducted to: i) understand the important factors that are related to the present-day distribution of scaled-chrysophytes; ii) investigate changes in the scaled-chrysophyte assemblages ...
Mercury and Stable Isotopes in Common Terns (Sterna Hirundo) from the St. Lawrence River: A Comparison Between Breeding and Winter Habitats
The Common tern (Sterna hirundo) is considered a sentinel wildlife species for monitoring mercury (Hg) and other contaminants within the St. Lawrence River Cornwall/Massena Areas of Concern (AOC). Here, I investigate the ...
Srk1 kinase suppresses mitosis in response to heat stress in fission yeast
Fission yeast Srk1 kinase is essential for cellular responses to extracellular stimuli. It is activated downstream of the MAPK Spc1 and participates in controlling mitotic entry by directly phosphorylating and inhibiting ...
Evolution of floral and mating system variation in Camissoniopsis cheiranthifolia (Onagraceae): An evaluation of patterns and processes
Understanding how floral traits covary with one another and with mating patterns is an important step in understanding how and why mating systems evolve. I examined the evolution of floral and mating system variation in ...
Migratory timing, fitness, and behaviour in a Neotropical migrant songbird: insights from long-term data and experiments
Migratory birds face the distinct challenge of travelling between widely separated and environmentally distinct areas for their breeding and non-breeding periods. They may be faced with different pressures at different ...
Functional Characterization of Teleost Intrinsic Photosensitive Dermal Chromatophores
Mammalians process their photoreceptions through lateral eyes; however, non-mammalian vertebrates and invertebrates possess additional extraretinal photoreceptors over their bodies to detect light stimuli. Chromatophores, ...