12 record(s) found with the tag "food chain" (multi-year projects are grouped):
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Bioaccumulation of Brominated Flame Retardants, Currently Used Pesticides, and emerging metal trends in the Vegetation-Caribou-Wolf Food Chain
Principal Investigator: Katz, Sharon
Licenced Year(s): 2009
Summary: The objectives of this study are: (a) To determine whether brominated flame retardants (BFRs), current use pesticides (CUPs), perfluorinated compounds (PFCs), and mercury bioaccumulate using the vegetation-caribou-wolf food chain and the Bathurst caribou herd as a model; (b) To explore possible sources of lead contamination in the Bathurst herd caribou; (c) To elucidate the pathway of lead uptake ...


Bioaccumulation of Perfluorinated Compounds in the Vegetation-Caribou-Wolf Food Chain - Traditional Knowledge
Principal Investigator: Katz, Sharon
Licenced Year(s): 2008
Summary: The objective of this research is to obtain traditional knowledge (TK) about: the feeding and preying habits of wolves; the relative importance of caribou in wolves' diet; the composition and seasonality of wolves diet; wolves’ prey preference; the composition and seasonality of caribou diet; caribou and wolf and oral history information, and compare TK from different regions. The Gwich'in Soci...


Temporal Variability of Stable Carbon and Nitrogen within the Food Webs of Wood Buffalo National Park
Principal Investigator: Sotiropoulos, Maria
Licenced Year(s): 2000
Summary: The extensive wetland complex in Wood Buffalo National Park (WBNP) is composed of a mosaic of shallow ponds that are unique in Canada. They are also the nesting grounds of the last migratory population of Whooping Cranes. Water, organic matter, aquatic plants and small aquatic life forms will be sampled from ponds just outside the nesting area and 0.5 km from the highway. The research team will ...


Productivity of Marine Mammal Food Chains in the Northwest Passage
Principal Investigator: Welch, Harold
Licenced Year(s): 1993 1992 1991 1990 1988 1987
Summary: The researcher and his team will continue their marine research at Resolute. They will continue their work on the trophic dynamics of the arctic marine food chain as it pertains to marine mammal and seabird production. The main goal is to obtain data on seasonal cycles of energy flow. The team will also be examining organochlorine and heavy metal contaminants in the marine system....


Toxaphene in the Arctic: Atmospheric Delivery and Transformation in the Food Chain
Principal Investigator: Bidleman, Terry F.
Licenced Year(s): 1992
Summary: The researcher will collect air and water samples for analysis of toxaphene and other organochlorine compounds, as well as examining differences in toxaphene patterns in air, water and biological samples....


A Study of Polonium 210 and Lead 210 in Food Chains, Lichen-Caribou-Man and Lichen-Caribou-Wolf in Northern Saskatchewan and the Northwest Territories
Principal Investigator: Thomas, Patricia
Licenced Year(s): 1991
Summary: The study will compare two arctic food chains, namely, lichen-caribou- wolf and lichen-caribou-human to investigate the accumulation and transfer of Polonium-210 and Lead-210. Background levels of radiation will be measured by collecting samples of lichen, caribou, wolf and human placenta....


Nutrition and Distribution of Arctic Marine Zooplankton in Relation to the Physical Environment
Principal Investigator: Gustavson, Kent
Licenced Year(s): 1991 1990
Summary: The Researcher will continue to study the distribution of phytoplankton and zooplankton in the Barrow Strait area. The herbivourous plankton species which feed on the marine algae and phytoplankton is the first step in the arctic food chain. It is the herbivorous plankton which is the source of food for other animals which ultimately provides food for all other higher arctic animals....


Trophic Relationships and Energetics of Arctic Cod in High-Arctic Marine Food Chains
Principal Investigator: Hop, Haakon
Licenced Year(s): 1991 1990 1988
Summary: The Researcher and his assistant will collect Arctic cod. Samples of these will be taken and studied to investigate the feeding ecology of Arctic cod and the energy flow through Arctic cod from zooplankon to marine mammals and sea birds....


Joint Services Expedition to Borup Fiord, Ellesmere Island
Principal Investigator: Hankinson, Flt. LT. K.W.
Licenced Year(s): 1991 1988
Summary: to classify breeding and feeding habitats of snow buntings, wading birds and Arctic hares; use pitfall traps to collect insects; study growth, reproduction and diet of Arctic char; collect bryophytes; map igneous rocks of Esayoo formation; record and map any archaeological sites; record weather observations; collect animal and plant material for carbon isotope ratio analysis and assessment of food...


Licence #5134
Principal Investigator: Davis, Ph.D., Rolph A.
Licenced Year(s): 1985
Summary: To employ recently developed photogrammetric techniques to determine reproductive parameters of the bowhead whale and the status of the Western Arctic bowhead population; and the sampling of zooplakton to determine the availability of bowhead food in the Canadian Beaufort Sea....


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