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- 2Cortini, Francesco
- 2Najar, Ahmed
- 1Abele, Suzanne E
- 1Abou Rizk, Jenna S
- 1Aftergood, Olivia SR
- 1Aguilar Rojas, Jaime
Ecological Response of Atmospheric Nitrogen Deposition on Reconstructed Soils in the Athabasca Oil Sands RegionDownload
Oil and gas extraction in the Athabasca oil sands region has increased anthropogenic nitrogen (N) emissions over the past two decades. This study quantified atmospheric N deposition and assessed the potential implications of increased N deposition in aspen (Populus tremuloides Michx.) and jack...
Habitat use by fluvial Arctic Grayling (Thymallus arcticus) in mountain streams of the Little Nahanni watershed, Northwest TerritoriesDownload
Northern aquatic ecosystems face increasing pressures from climate change and natural resource development, raising conservation concerns for species in these vast and remote regions. Arctic Grayling (Thymallus arcticus) have a Holarctic distribution and are a sensitive freshwater fish that...
Star Creek is a snowmelt-dominated, steep mountain watershed with shallow soils, deep glacial till, and fractured sedimentary bedrock in the eastern slopes of Alberta’s Rocky Mountains. Measurements of streamflow quantity and chemistry at variable scales, water table dynamics, and precipitation...
Pine sawdust biochars produced at 300 and 550 °C with and without steam activation were assessed for its sorption capacity for phosphate and copper (Cu (II)) in aqueous solutions using batch sorption experiments, including isotherm and kinetic studies. This study implied that pine sawdust...
PLANT FATTY ACIDS INFLUENCE BROOD DEVELOPMENT OF MOUNTAIN PINE BEETLE AND GROWTH OF ITS SYMBIOTIC FUNGUS: IMPLICATIONS TO HOST-RANGE EXPANSION OF AN HERBIVOROUS INSECTDownload
Nutritional composition of plants can affect the performance of insect herbivores and their associated microbial symbionts. Mountain pine beetle (Dendroctonus ponderosae) is an important bark beetle species that colonizes many species of Pinus within its historical range and encounter host...
Chemotypic variations of lodgepole pine affect mountain pine beetle behaviour and growth of its symbiotic fungusDownload
Plants generally show large chemotypic variations in susceptibility to phytophagous insects and pathogens. Plant chemical defenses, or secondary compounds, are important components of plant resistance to pest organisms. Among plants, coniferous trees produce complex oleoresins that contain toxic...
On the origin of virtual wetlands by means of computer aided selection or the preservation of favoured places in the struggle for functional wetlandsDownload
To aid in reclamation planning for the Genesee Coal Mine in Alberta, I qualified the pre-mined state of wetlands and measured land use and land cover (LULC) change between 1982 and 2007. A generalized linear model (GLM) was developed to explain the presence of wetlands on the pre-mined...
Water is a resource crucial for the survival and growth of trees. Understanding water relations and how changes in water availability may affect the growth and survival of trees across spatial and temporal scales is critical to gain insights in the future of forests. Sap flow sensors allow...
Effects of clear-cutting and wildfires on succession of ground beetle (Coleoptera: Carabidae) assemblages in western AlbertaDownload
I studied how carabid beetle assemblages in lodgepole pine stands have responded after clear- cut harvest and wildfires on an actively managed landscape ~20 km south of Hinton, Alberta. This work builds on and expands the focus of a previous study (Niemelä et al. 1993) conducted 23-24 years...