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196 record(s) found with the tag "vegetation" (multi-year projects are grouped):
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1. Hierarchy of stress tolerance for flowering plants in extreme polar desert. 2. Initial phase of primary succession following glacial retreat. 3. Life of plants in extreme environments. 4. Baker Lake experiment.
Principal Investigator: Svoboda, Josef
Licensed Year(s): 1994 1993 1992 1991 1988 1987
Summary: The aim of projects 1 and 2 is to learn how plants returned to the arctic following the retreat of the ice sheet that covered Ellesmere Island some 8000 years ago. This research will also help to determine what effect climate warming will have for the plant communities of the high arctic. Project 3 will involve the filming of plant life in the high arctic. Project 4 is part of an on-going study...
Licensed Year(s): 1994 1993 1992 1991 1988 1987
Summary: The aim of projects 1 and 2 is to learn how plants returned to the arctic following the retreat of the ice sheet that covered Ellesmere Island some 8000 years ago. This research will also help to determine what effect climate warming will have for the plant communities of the high arctic. Project 3 will involve the filming of plant life in the high arctic. Project 4 is part of an on-going study...
Implications of climatic change on water-based recreational activities in Nahanni and Jasper National Parks
Principal Investigator: Staple, Tamara
Licensed Year(s): 1993
Summary: The research in Nahanni National Park includes the setting up of programs to monitor water depth and vegetational changes along the river. Changes in water depth influence the ability of navigating the river, especially in areas of rapids, and has implications on the level of expertise required by visitors travelling the river. Monitoring vegetation along the river will provide information about...
Licensed Year(s): 1993
Summary: The research in Nahanni National Park includes the setting up of programs to monitor water depth and vegetational changes along the river. Changes in water depth influence the ability of navigating the river, especially in areas of rapids, and has implications on the level of expertise required by visitors travelling the river. Monitoring vegetation along the river will provide information about...
Testing the Allometric Theory of the Self-Thinning Rule
Principal Investigator: Osawa, Akira
Licensed Year(s): 1992 1991 1987
Summary: The researcher and his team will estimate the number of trees and monitor individual growth in flagged and tagged stands, as well as estimating foliage weight of individual trees. They will measure light conditions in various jack pine stands, as well as collect stem cores to be analyzed and compared with stem cores from other parts of the northern hemisphere for the possibility of accelerated gr...
Licensed Year(s): 1992 1991 1987
Summary: The researcher and his team will estimate the number of trees and monitor individual growth in flagged and tagged stands, as well as estimating foliage weight of individual trees. They will measure light conditions in various jack pine stands, as well as collect stem cores to be analyzed and compared with stem cores from other parts of the northern hemisphere for the possibility of accelerated gr...
Evolution of High Latitude Floras
Principal Investigator: Basinger, James F.
Licensed Year(s): 1994 1993 1992 1991 1990 1989 1988 1987
Summary: The researcher and his team will continue the study of the evolution of plants and climate in the very high latitudes, and will continue to assemble an extensive collection of fossil plants from northern Canada....
Licensed Year(s): 1994 1993 1992 1991 1990 1989 1988 1987
Summary: The researcher and his team will continue the study of the evolution of plants and climate in the very high latitudes, and will continue to assemble an extensive collection of fossil plants from northern Canada....
Geographic Distribution, Physiological Adaptations, Systematics and Ecology of Stream Macroalgae in North America
Principal Investigator: Sheath, Robert
Licensed Year(s): 1994 1992
Summary: The researcher and his team will survey streams for macroscopic algae, and relate their distribution to various physical and chemical characteristics, biomes and drainage basins. They will also set up a seasonal study of the physiological adaptations of macroalgae to the harsh conditions of tundra streams. As well, a widespread seaweed will be collected for comparison with other populations to d...
Licensed Year(s): 1994 1992
Summary: The researcher and his team will survey streams for macroscopic algae, and relate their distribution to various physical and chemical characteristics, biomes and drainage basins. They will also set up a seasonal study of the physiological adaptations of macroalgae to the harsh conditions of tundra streams. As well, a widespread seaweed will be collected for comparison with other populations to d...
Fire Severity and Growth of Treeline Tree Species: Climate Change Implications
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....
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....
Arctic Fieldwork, 1992
Principal Investigator: Beyens, L.
Licensed Year(s): 1992 1987
Summary: In the vicinity of Cambridge Bay the researcher hopes to gain more insight in the biogeography and ecology of unicellulars, i.e. diatoms and testate amoebae. A small collection of samples of terrestrial and aquatic material will be undertaken....
Licensed Year(s): 1992 1987
Summary: In the vicinity of Cambridge Bay the researcher hopes to gain more insight in the biogeography and ecology of unicellulars, i.e. diatoms and testate amoebae. A small collection of samples of terrestrial and aquatic material will be undertaken....
Climatic Change at the Forest-Tundra Boundary
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....
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....
Vegetation Response to Global Warming in the Mackenzie River Basin: Interations Between Northern Boreal Forests, Wetlands and Regional Hydrology
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...
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...
The Impacts of Muskoxen on a Hygric Sedge Meadow Plant Community, Northern Banks Island, N.W.T.
Principal Investigator: Romo, J.T.
Licensed Year(s): 1992
Summary: The project examines the effects of a high-density muskoxen populations on a sedge meadow plant community. Two fences exist at the study site to exclude muskoxen and thus provide an ungrazed area used for comparison with the grazed area. Plant species abundance, plant height, grazing use of plant species and weight of plants are some of the data that will be compared among grazed and ungrazed are...
Licensed Year(s): 1992
Summary: The project examines the effects of a high-density muskoxen populations on a sedge meadow plant community. Two fences exist at the study site to exclude muskoxen and thus provide an ungrazed area used for comparison with the grazed area. Plant species abundance, plant height, grazing use of plant species and weight of plants are some of the data that will be compared among grazed and ungrazed are...
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