Browsing by Discipline
Now showing items 61-80 of 297
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Density, depth distribution and richness of emerging insects (Diptera: Chironomidae) before and after experimental watershed deforestation
(1999)The primary objective o f this study was to document changes in Chironomidae density, depth distribution, and taxon richness, associated with experimental upland and riparian deforestation of L42, a small boreal forest ... -
Density-dependent habitat selection alters fitness in a clonal hexapod
(2019)Density-dependent habitat selection shapes the distribution and abundance of organisms and thus informs our understanding of the eco-evolutionary process. When habitat choice is contingent on an individual’s expectation ... -
Detecting trends in walleye (Stizostedion v. vitreum, Mitchill) abundance using catch-effort data
(1995)Three methods of analyzing catch-effort data were investigated regarding their relationship to walleye abundance: mean CUE, Gini coefficient and the relative frequency of zero CUE (RFZ). Walleye recreational fishery ... -
Detection and characterization of DNA damage
(2009)The DNA molecule is constantly subjected to endogenous and exogenous sources of damage which if left unrepaired can lead to genotoxic and cytotoxic outcomes. These lesions have been implicated in the development of numerous ... -
Detection of Campylobacter jejuni in poultry samples using Florescent in situ Hybridization (FISH)
(2004)In this study, a protocol using Fluorescent in situ Hybridization (FISH) for the detection of Campylobacter spp., particularly C. jejuni, in naturally contaminated poultry samples was developed and its application evaluated. ... -
Detection of Deoxyribonucleic Acid Damage Induced by Metal Ion Interactions and Repair of Metal Ion Deoxyribonucleic Acid Cross-links
(2010-08-17)There are many forms of DNA damage. One of these, DNA-metal cross-links are particularly problematic as they not only affect the tautomeric structure of DNA, but can also inhibit enzymatic activity and block amplification ... -
Developing a Multiplex PCR Platform to Determine the Virulence Genes of Escherichia Coli in Boulevard Lake, Thunder Bay, Ontario
Given the evidence that E. coli can establish in the periphytic community and be released back into the water column, it is important to understand the pathogenicity of this group of E. coli by examining the virulence genes ... -
Development and evaluation of inductive and deductive models of elk (Cervus elaphus) summer resource suitability in Northwestern Ontario
(2006)Resource-selection modelling techniques take either a deductive or inductive approach. Deductive methods take a “bottom-up” approach, where individual wildlife-resource relationships are the building blocks that define ... -
Development of a protocol to profile the gonadal steroid intermediates of vitellogenic ovaries from fathead minnows, pimephales promelas
(1996)This research developed a protocol to extract, isolate, detect, and measure the intermediates involved in ovarian steroid biosynthesis by Pimephales promelas to be used in bleached kraft mill effluent chronic toxicity ... -
Development of a toxicity early warning system (TEW)
(2006)Biomonitoring is a practice that has over time developed into a remarkably accurate form of detecting toxicity in the environment. The Toxicity Early Warning system (TEW) is a Real-Time Biomonitoring system developed to ... -
Diagnostic and treatment approaches to fibromyalgia management: quantification of peripheral blood mononuclear cell function and evaluation of radial shockwave therapy
(2019)Fibromyalgia (FM) is a chronic pain disorder that affects many individuals worldwide. The lack of a definitive diagnostic method and highly successful treatment approaches make it an interesting area of research. In the ... -
Diatoms as an indicator of pharmaceutical contamination in a freshwater system
(2018)Historically, microalgae have been used as bio-indicators of aquatic health and this can be seen in several studies across the world. Often at the bottom of the food chain, microalgae constitute the primary producer of ... -
Differential response of two common human papillomavirus 16 E6 variants to small interfering RNA
(2014-01-22)High-risk human papillomaviruses (HPVs), such as HPV16, are implicated in causing virtually all cases of cervical cancer. Molecular therapies capable of targeting HPV16 E6 oncoprotein expression can selectively eliminate ... -
Direct and indirect effects of post-fire conditions on successional pathways and ecological processes in black spruce-Kalmia forests
(2002)The goal of this thesis was to estimate the relative importance of the mechanisms by which forest stands of east-central Newfoundland are replaced by unproductive dwarf-shrub communities following wildfire. Sheep laurel ... -
Distribution of Angiostrongylus vasorum and Crenosoma vulpis in red foxes (Vulpes vulpes) in Newfoundland, Canada
(2002)Angiostrongylus vasorum, the French heartworm, and Crenosoma vulpis, a lungworm, infect the pulmonary arteries and the bronchi and bronchioles, respectively, o f red foxes (Vulpes vulpes). Both are widespread in Europe, ... -
Distribution of fishes in the Thunder Bay area of northwestern Ontario since deglaciation, with special reference to the darters (Genus Etheostoma) and the Sibley Peninsula
(1991)The prevailing theory explaining fish distribution in the western Lake Superior basin states that recolonization was from south to north following the retreating ice margins. Postulated access to post glacial Lake Superior ... -
Does fire severity difference create divergent plant communities in black spruce-Kalmia forests of eastern Canada?
(2009-06-25)After fire, some conifer-ericaceous plant communities in Western Europe and eastern North America have demonstrated divergent succession from traditional conifer stand replacement to Ericaceae-dominated community states. ... -
Dynamics of a polyphagous lake trout, Salvelinus namaycush (Walbaum), population in a Northwestern Ontario lake
(1988)Tagging studies, index gill netting and an experimental winter fishery were used to investigate the dynamics of a polyphagous lake trout (Salvelinus namaycush population in Squeers Lake of northwestern Ontario. The ... -
Ecology and management of riparian zone vegetation along small coldwater streams in Northwestern Ontario
(2002)This thesis synthesizes three papers on the ecology of the riparian zone vegetation found along small coldwater streams in northwestern Ontario. The objectives of this thesis were 1 ) to describe the biodiversity and ... -
Ecology of a northern pike (Esox Iucius) population in a small, oligotrophic Lake : with comparisons to other northwestern Ontario populations
(1988)The life history and population dynamics of the northern pike (Esox lucius) within Squeers Lake, Ontario were studied in order to provide information on pike found within oligotrophic lakes. Results clearly demonstrate ...