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Now showing items 51-60 of 62
Testing local adaptation in five populations of Hyalella azteca in northern Alberta’s oil sands region
(2015)
Canada’s oil sands hold the third largest petroleum reserves worldwide. Rapid
economic growth has led to increased exploitation of the surrounding boreal forest
despite limited understanding of the environmental effects ...
Managing for Emerald Ash Borer in the urban forest
(2015)
Urban forestry is a concept applied to many cities, municipalities, and communities around the world. It is the practice of managing the interface between urban infrastructure and environmental green spaces. An invasive ...
Assessment of fuel quality changes during storage of biofibre and its effect on cost
(2010)
Bioenergy, energy produced from renewable biomass, can potentially replace fossil fuels and create employment in northwestern Ontario. However, the procurement of biomass for energy production can be uneconomical due to ...
An assessment of juvenile lake sturgeon movement and habitat use in the Namakan River of Northwestern Ontario
(2013)
The Namakan River of Northwestern Ontario is home to a recovering population of lake sturgeon (Acipenser fulvescens). Although the adult portion of this population has been well studied in recent years, very little information ...
Predator mediated indirect effects of livestock on native prey
(2012-11-10)
Livestock are common in many protected areas and due to their negative effects pose a considerable challenge to protected area managers attempting to conserve native ecosystems. Negative effects include resource competition ...
Climate change-associated temporal increase of tree mortality and its consequences in central and western Canadian boreal forests
(2014-01-22)
Tree mortality influences forest structure, composition and ecosystem functions. To assess how recent climate changes affected tree mortality, observational studies conducted in old-growth forests have shown that tree ...
The antifeedant action of climacodon septentrionalis and two species of sphaerobolus to hyphal grazing by the fungus-feeding nematode aphelenchoides sp.
(2012-11-10)
Fungi are ubiquitous in forest ecosystems and are, collectively, a major force in driving nutrient and organic matter availability and cycling. Some saprotrophic and mycorrhizal fungi are characterized by a perennial ...
Effects of KNO3 and NaH2PO4 on lipid synthesis and CaCO3 accumulation in pleurochrysis carterae and newly identified algal shell coccolith structure
(2019)
Due to the limited energy reserves and the increasing demand for energy, a large number of greenhouse gases such as CO2 have been released to the air. Therefore, there is an urgent need to find new sources of energy and ...
Foliar nutrient resorption and litterfall production with stand age, overstory composition, and disturbance origin in boreal forests
(2015-01-13)
Nutrient resorption (NuR) prior to developmental senescence allows for nutrient conservation in plants, driven primarily by genetics, development stage, climate and soil fertility, and litterfall is the vector for the ...
Characterization of rooting patterns in mixedwood forests of white spruce and trembling aspen: Is competition reduced belowground?
(2012-11-10)
This study examined the rooting patterns of white spruce (Sw, Picea glauca (Moench) Voss) and trembling aspen (Pt, Populus tremuloides Michx.), and the effect of stand type upon such patterns. Specifically, contrasts were ...