Now showing items 1-10 of 24
Paleolimnological assessment of environmental changes occurring on Pim Island, Nunavut, High Arctic Canada
Despite the documented sensitivity of polar environments, long-term monitoring data are especially sparse in these regions. Diatom-based paleolimnology has contributed significantly to understanding the response of Arctic ...
A diatom-based paleolimnological study of water-quality changes related to multiple anthropogenic stressors in Lake Simcoe
Freshwater systems in Canada are affected by a multitude of environmental stressors, including cultural eutrophication, introduction of non‐native species, and climate change. Multiple stressors can interact in unpredictable ...
Tracking Long-Term Holocene Climate Trends in Lake 239 (Experimental Lakes Area, NW Ontario) Using Diatoms, Pollen, and Charcoal
The boreal forest region of Canada is climatically sensitive and may be impacted by anthropogenic-induced climatic changes. The results of this multi-proxy paleolimnological study contribute detailed information on changes ...
Evidence for Local Adaptation in Birds
Phenotypic traits that vary geographically within species are commonly assumed to represent local adaptations to different environments. In order for local adaptation to evolve by natural selection, three conditions must ...
A diatom-based paleolimnological investigation of historical water-quality and ecological changes in the Lake of the Woods, Ontario
A two-part paleolimnological study was conducted to examine changes in historical and modern water-quality in Lake of the Woods (LoW) in response to multiple stressors, such as climate change and shoreline residential ...
The influence of nutritional phosphate deprivation on the secreted proteome of Arabidopsis thaliana
This thesis examines the influence of nutritional phosphate (Pi) deprivation on extracellular proteins secreted by the model plant Arabidopsis thaliana. Initial studies compared the secretome of Pi-sufficient (+Pi) versus ...
Bacterial low temperature survival, ice nucleation proteins and ice-associating polymers
Microorganisms have developed ways to preserve cellular functions under low temperature conditions using a variety of biochemical adaptations including the modification of ice formation. In order to conduct a limited survey ...
A Duality in Mammalian Glucocorticoid Signaling
I tested a prevalent assumption in glucocorticoid research that states that each species has a dominant glucocorticoid, and cortisol and corticosterone are interchangeable steroids. A comprehensive analysis of historical ...
Reliability, Accuracy, and Tracking Techniques of Inuit Hunters in Estimating Polar Bear Characteristics From Tracks
Inuit estimates of polar bear characteristics from tracks could complement ongoing capture-mark-recapture methods to frequently monitor polar bear populations in response to climate-induced habitat changes. Before the ...