27 record(s) found in the location "" (multi-year projects are grouped):
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Establishment of Permanent Monitoring Plots in the NWT
Principal Investigator: Smith, Lisa
Licensed Year(s): 2005
Summary: The Permanent Monitoring Plots will provide experimental data on forest growth and progression, cumulative impact monitoring, and will provide data for territorial and national reporting requirements. Most plots will be accessed only by helicopter. At each site, a 400 square metre plot (11.28 m radius) will be established with rebar as a centre post. All trees, shrubs and other vegetation will...


Trace Contaminant Transformation and Fate in Northern Ecosystems
Principal Investigator: Siciliano, Steven D
Licensed Year(s): 2003
Summary: This study will: (1) assess sulfate-reducing bacterial diversity and mercury transformations; and (2) analyze the toxicity of contaminants deposited on vegetation and soil to wildlife that may digest it. Little is known about transformations of mercury...


Snow Accumulation/Runoff in High Latitude Permafrost Basins
Principal Investigator: Marsh, Philip
Licensed Year(s): 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1990
Summary: The primary objective of this project is to develop improved understanding of the fluxes of water and energy in northern regions, and to develop improved computer models of these processes. The Trail Valley Creek site will be accessed by helicopter and s...


Active layer monitoring network in the Mackenzie Valley
Principal Investigator: Nixon, Mark
Licensed Year(s): 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990
Summary: This season, a party of two will survey tubes between North Richards Island and Tsiigehtchic during April and from Fort Simpson to the Arctic Coast in July and August. Travel will be by road, small boat on the river and helicopter from Norman Wells and Tutoyaktuk. Access to the sites is always on foot. This year is the seventh annual survey of a network of thaw depth measuring devices (thaw tub...


Hybridization and genetic variation in arctic grasses: molecular, morphological and ecological evidence
Principal Investigator: Gillespie, Lynn J.
Licensed Year(s): 1997 1995 1994
Summary: The researcher will collect living plants (Arctic grasses), 6 - 10 species from each collection site. In addition, several plants of each species will be pressed and dried as voucher specimens to be used to check the identification. Photographs of the plants and their habitats will be made. In Ottawa, variations in DNA among different populations and species will be analyzed to study species re...


Palynology (Mackenzie Valley Global Change), study of the climatic change along the Mackenzie River and on the Arctic Islands.
Principal Investigator: Jette, Helene
Licensed Year(s): 1995 1993 1992
Summary: The researcher will sample a variety of lakes (some 50 lakes altogether) around Inuvik. A hole, approximately 8 inches in diameter, will be bored through the ice in each lake. Using an Ekman sampler, lake bottom sediments (mud) will be collected for analysis in the lab. The researchers will get to each of the lakes bt helicopter and spend approximately 15 to 20 minutes at each lake....


Prescribed Fire and Wildlife Habitat Enhancement
Principal Investigator: De Groot, Bill
Licensed Year(s): 1994
Summary: Plant samples will be collected in the field by the researcher after they become dormat for treatment in a lab experiment. Burning treatments will be conducted in the lab where environmental growing conditions and the plant physiological state at the time of the treatment can be better controled. This will be done in order to model the effects of fire on two types of shrubs....


Long-term forest-tundra disturbance research
Principal Investigator: Wein, Ross
Licensed Year(s): 1993 1992 1989 1988 1987
Summary: In previous research in the 1970's, experiments and surveys provided information on the recovery rates of vegetation in response to disturbances from human activities. Several predictions about the long-term recovery of vegetation were made at that time. We are now collecting data to determine if these predictions reflect what is actually occurring. This information provides information about l...


Grasses of the NWT
Principal Investigator: Aiken, Susan
Licensed Year(s): 1993 1992 1991
Summary: The researcher will continue her study on NWT grasses. She will collect living plants in order to conduct chemical analyses on the plant tissue. These tests will help to identify different species of grasses (especially those that look very similar) and also help to determine where these species originated from. In addition, the researcher has small experiments on grass being conducted by staff...


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....


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