4 record(s) found for principle investigator "Pearce, Cheryl" (multi-year projects are grouped):
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An Evaluation of Satellite Data to Detect and Monitor Vegetation Responses to Climate Warming at Treeline
Principal Investigator: Pearce, Cheryl M.
Licenced Year(s): 1993 1992 1991 1990
Summary: The Researcher will continue to determine what density of trees is necessary for detection by the satellite sensors. To determine what are the densities of shrubs and herbs or dwarf shrubs and lichens that change the reflectance patterns from the understory. To determine if the thresholds in density will be sensitive enough to monitor vegetation responses to climate change in the forest to tundra ...


Spatial and Temporal Variation of Vegetation on Raised Beaches, Devon Island
Principal Investigator: Pearce, Cheryl M.
Licenced Year(s): 1988 1987
Summary: Dr. Pearce and her associate are returning to Truelove Lowland to evaluate an idea that plant associations growing on raised beaches of different ages are a result of the type of soil and water conditions they are growing on rather than the amount of time that they have had to live there....


The relationships between modern pollen sedimentation and present vegetation distribution on Truelove Lowland, Devon Island.
Principal Investigator: Pearce, Cheryl M.
Licenced Year(s): 1987
Summary: To 1) collect and analyze present-day pollen sedimentation from major plant communities on several high arctic site types, 2) to correlate this production with actual plant cover, and 3) to compare the modern pollen rain to historical pollen deposits analyzed in the Department of Geography, University of Western Ontario (R. King) and during the I.B.P. Project (Jankovska and Bliss)....


Vegetation Dynamics on Shorelines of Mackenzie Delta, N.W.T.
Principal Investigator: Pearce, Cheryl M.
Licenced Year(s): 1987
Summary: To analyze the environmental processes that control plant distribution and succession on shorelines of the Mackenzie Delta. Specific objectives of the research are to examine (1) the colonization and establishment on exposed mudflats and other newly-available sites, (2) the responses of the shoreline plants to fluctuations in the biophysical environment, and (3) the chemical and physical properti...


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