9 record(s) found in the location "Gwich'in Settlement Area" (multi-year projects are grouped):
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Plant diversification facilitated by climate change: evolution of ancient lycopods connected with arctic, post glaciated and boreal regions
Principal Investigator: Ekrt, Libor
Licensed Year(s): 2022
Summary: This licence has been issued for the scientific research application No.5349. The purpose of the project is to study plants surviving in glaciated areas on the example of the most primitive vascular plants: the model genus Huperzia (Lycopodiophyta). The research team will study the distribution of ancestral and derived types of plants in arctic, boreal and alpine zones in context of climate cha...


Treeline Dynamics in Western Canadian Arctic
Principal Investigator: Green, Scott
Licensed Year(s): 2009 2008
Summary: The project will examine past tree growth patterns at the northern treeline in Western Canada as a baseline to predict future growth responses to climate change. Additionally, the researchers will examine tree regeneration and plant associations at the northern treeline. Annual tree rings represent a growth response to local climate. Wide growth rings represent good growing conditions, and nar...


Photosynthetic Efficiency and Water Relations in Boreal Conifers under 24 Hour Environmental Light Conditions
Principal Investigator: Johnston-Schuetz, Cheryl
Licensed Year(s): 2007
Summary: The objective of this project is to examine the environmental thresholds to the successful establishment of a boreal (high latitude) conifer forest by measuring photosynthetic rates in conifer seedlings. Climate change has the potential to shift southern commercial tree species and treelines northward with implications for existing ecosystems and future economic development. The project’s goal ...


Autecology of Green Alder in the Mackenzie Delta
Principal Investigator: Lantz, Trevor C.
Licensed Year(s): 2006 2005 2004
Summary: The objective of this research is to explore the influence of temperature and disturbance on green alder by comparing alder characteristics on sites with different average temperatures and disturbance histories. Understanding of factors that influence alder populations today will assist in predicting the likely consequences of rising temperatures and increased disturbance on tall shrubs. A min...


Reproductive Ecology of Tundra Swans in the Mackenzie Delta Region
Principal Investigator: Swystun, Heather
Licensed Year(s): 2002 2001
Summary: Two individuals from each of the communities of Inuvik, Aklavik, Tsiigehtchic, Fort McPherson, and Tuktoyaktuk will be interviewed about their local knowledge of tundra swan biology. Information collected will educate the researcher about local tundra swan ecology and may help generate questions that are important to communities. Interview methods will follow those used by the Arctic Borderlands E...


Post-glacial treeline change in the Campbell-Dolomite Uplands of the Inuvik area
Principal Investigator: MacDonald, Glen M
Licensed 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 ...


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....


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....


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...


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