10 record(s) found with the tag "lichen" (multi-year projects are grouped):
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Bryophytes of southwest Northwest Territories waterfall areas
Principal Investigator: Doubt, Jennifer
Licensed Year(s): 2018
Summary: The objective is to increase knowledge of bryophytes (e.g., mosses, liverworts) and (incidentally, where possible) lichens in the Northwest Territories. Waterfall areas can offer a wide diversity of microhabitats (featuring a large variety of substrates, moisture and light levels, and exposures) within a relatively small area. Bryophyte species and communities are often associated with specific...


Lichens as indicators of trace-element air pollution in the environment and environmental controls on plant species richness and composition along an arctic river
Principal Investigator: Gould, William
Licensed Year(s): 1994 1993 1992 1991 1990
Summary: Project 1: Small samples of lichens will be collected from approximately 20 sites located along the Hood River and analyzed for contaminants. Lichens are good indicators of the types of air-borne contaminants that have been carried north to the arctic since they absorb their nutrients from the air. Project 2: The researcher will examine plant communities along the Hood River in order to study th...


Establishment of Lichens in Glacial Recession Zones
Principal Investigator: Fahselt, D.
Licensed Year(s): 1992 1991 1990
Summary: Samples of all colonizing lichen species will be collected, identified and examined for apothecal and spore production. Photographic records will be taken. Samples of umbilicate lichens will be collected and later analyzed for genetic variability. Temperature gradients will be established and distances from first establishment to ice mass will be measured....


Ecological investigations of Sverdrup Pass, Ellesmere Island
Principal Investigator: Svoboda, Josef
Licensed Year(s): 1994 1993 1992 1991 1988 1987
Summary: To study plant communities and conduct vegetation mapping; to study primary producers - herbivore (muskox) interactions (impact of grazing on vegetation); to document lichen diversity and growth; to document the history and age of the vegetation at Sverdrup Pass....


Licence #5055
Principal Investigator: Svoboda, Josef
Licensed Year(s): 1985
Summary: To study productivity of high Arctic meadows; continue measurements of the Alexandra Fiord glacier; to remeasure marked colonies of saxicolous lichens....


Licence #2569
Principal Investigator: Brassard, Guy R.
Licensed Year(s): 1980
Summary: To collect specimens and study the habitat of mosses and lichen in the field....


Licence #2477
Principal Investigator: Lewis, M.C.
Licensed Year(s): 1979
Summary: 1. general vegetation surveys. 2. plant and growth reproduction. 3. diet and food preferences of lemmings. 4. effect of lemming grazing on plant growth and reproduction. 5. mineralnutrition of lichens. 6. atmospheric sampling....


Licence #2338
Principal Investigator: Lewis, M.C.
Licensed Year(s): 1978
Summary: Studies to include: (1) general vegetation surveys (2) plant growth and reproduction (3) diet and food preferences of lemmings (4) effect of lemming grazing on plant growth and reproduction (5) determination of mineral nutrition of lichens (6) atmospheric sampling...


Licence #2195
Principal Investigator: Bird, Charles D.
Licensed Year(s): 1977
Summary: To collect samples of and conduct research on bryophytes, lichens and lepidoptera....


Licence #1722
Principal Investigator: Isherwood, Dana
Licensed Year(s): 1974
Summary: Weathering and the growth of mosses and lichens, as related to geochemical processes....


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