NWT RESEARCH DATABASE

Principal Investigator: Wein, Ross
Licensed Year(s): 1993
Summary: Forestry researchers tend to study in detail their local forests yet for major issues such as global warming, it is necessary to conduct research over larger areas to understand impacts on Canadian forests and industry. This study attempts to better describe rates of decomposition and nutrient mineralization across Canadian forests in order to understand how forests are supplied with nutrients fo...

Principal Investigator: Johnson, Jim
Licensed Year(s): 1992
Summary: Mackenzie River basin broad whitefish represent a mixed-stock population which utilizes different geographical areas for different stages of its life history. The study will examine the role of outer delta lakes and lakes/rivers of the Tuktoyaktuk Peninsula in the life history of the Mackenzie River population....

Principal Investigator: Freeman, Milton M.R.
Licensed Year(s): 1994 1993 1992
Summary: Under the direction of the Aklavik and Inuvik HTA's, the research team will carry out interviews with Inuvialuit that are knowledgable about the broad whitefish and its fishery in the local waters. Data to be obtained include information on the traditional fishery, changes to this fishery, knowledge about the breeding and feeding habits, migrations, parasites and diseases, and effects of local en...

Principal Investigator: Taylor, John S.
Licensed Year(s): 1992
Summary: The researcher and his team will collect specimens of bees that belong to the subgenus Evylaeus (Family Halictid), which are small "ant-like" bees sometimes called "sweat bees." The researcher would like to determine how they are related to the European species, which, unlike the Evylaeus, are social in their behaviour. This study may shed some light on the evolution of social behaviour in bees....

Principal Investigator: Crease, Teresa
Licensed Year(s): 1992
Summary: The researcher and her team will collect Daphnia pulex (water flea) samples and maintain them in culture to obtain sufficient material for genetic analysis....

Principal Investigator: Patenaude, Nathalie
Licensed Year(s): 1992
Summary: The researcher will use a crossbow to fire an arrow with a stainless steel biopsy tip into landed beluga whales. Different tip designs will be tested to evaluate biopsy tip length and diameter required for effective sample retrieval, strength of bow string, and effective distance. Tissue surrounding the sample site will also be tested for tissue damage, and wounds will be photographed after each...

Principal Investigator: Sandstrom, Stephen J.
Licensed Year(s): 1992
Summary: This project addresses questions pertaining to the energy composition and habitat utilization of female sea-run Dolly Varden char (Salvelinus malma) of the Yukon Slope. The direct consequences of energy partitioning to fucundity (spawning success) and stored energy reserves (overwintering success) have significant effects on population abundance....

Principal Investigator: Olsen, Sue K.
Licensed Year(s): 1992
Summary: The experiment will determine the interacting effects of fire severity, soil moisture and air temperature treatments on the emergence, winter survival and initial growth of treeline and near treeline tree species. The availability and viability of tree seed for successful regeneration of the treeline and near-treeline tree species will also be determined....

Principal Investigator: Landhaeusser, Simon M.
Licensed Year(s): 1992 1991 1990
Summary: To determine the maximum size of treeline tree species in a burned and unburned valley in the Caribou Hills, the mass of standing trees on different slopes and aspects will be estimated and related to the energy input. In 1992 the plots prepared in 1990 and planted and seeded in 1991, will be revisited and measurement of growth for the second growing season will be taken....

Principal Investigator: Nicholson, Barbara
Licensed Year(s): 1992
Summary: The Researcher will map the present distribution of boreal and subarctic wetlands in the Mackenzie River Basin. Wetland vegetation and water chemistry will be described for areas immediately surrounding permanent weather stations. The ecological relationships between climate, wetland water chemistry and wetland species distribution will be analyzed. A predictive indicator model will be built to pr...