7 record(s) found for principle investigator "MacDonald, Glen" (multi-year projects are grouped):
Not seeing the results you want? Try advanced search.

2000 Years of Climate Change at Treeline North of Yellowknife
Principal Investigator: MacDonald, Glen M
Licenced Year(s): 2005
Summary: The researchers believe that the treeline zone is one of the most sensitive areas on earth to temperature changes, both natural and caused by global warming. They would like to take a small core (5 cm diameter) from the mud at the bottom of two small lakes close to Back Lake, northeast of Yellowknife. In the laboratory, they will analyze the cores for temperature-sensitive aquatic insect remains...


Post-glacial treeline change in the Campbell-Dolomite Uplands of the Inuvik area
Principal Investigator: MacDonald, Glen M
Licenced Year(s): 1993
Summary: As part of an on-going study, this research will involve collecting cores from trees located in the Campbell-Dolomite Uplands (near Campbell Lake). This data will be added to data collected in other locations (past studies) in order to determine how past climate has influenced the growth of trees (as indicated by tree rings within the tree trunk). The research is helpful in trying to understand ...


Postglacial Treeline Change in the Mackenzie-Selwyn Mountains
Principal Investigator: MacDonald, Glen M
Licenced Year(s): 1992 1990
Summary: The research party will continue to study past climatic variation and will continue to examine the relationship between climatic change and vegetation response. They will continue lake sediment coring and will collect tree increment cores....


The postglacial history of the northern treeline in the Kazan River region
Principal Investigator: MacDonald, Glen M
Licenced Year(s): 1988
Summary: to obtain lake sediment cores, peat samples, and tree-ring cores in the Kazan river region to examine the postglacial history of the northern treeline in this region...


The relationship between postglacial history and the modern genetic and morphologic diversity of jackpine (Pinus banksiana) in the Mackenzie River valley
Principal Investigator: MacDonald, Glen M
Licenced Year(s): 1989 1988
Summary: to obtain lake sediment cores, samples of pine needles, cones and seeds, and tree-ring cores from 10 sites along the Mackenzie River between Norman Wells and Fort Simpson in order to document the chronology of pine migration into the Mackenzie Valley following the last ice-age and to test hypotheses regarding postglacial history of northern plants and distributions of genetic diversity...


Treeline plant population response to postglacial climatic change in North Central Canada.
Principal Investigator: MacDonald, Glen M
Licenced Year(s): 1987
Summary: To use fossil pollen and plant macrofossils from small lakes to reconstruct the response of plant populations in the treeline zone to climatic change. Modern pollen surface samples from small lakes in the treeline zone will be collected to aoid in the interpretation of the fossil pollen samples. The study area will include the boreal forest, forest-tundra and tundra zones near Yellowknife (115 W...


Licence #5070
Principal Investigator: MacDonald, Glen M
Licenced Year(s): 1985
Summary: To collect surface samples from small lakes to reconstruct the response of plant populations in the treeline zone to climatic change....


TOTAL PAGES: 1