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38 dossier(s) trouvé(s) portant l’étiquette "human disturbance" (les projets pluriannuels sont regroupés):
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Long-term forest-tundra disturbance research
chercheur principal: Wein, Ross
Année(s) de permis: 1993 1992 1989 1988 1987
Résumé: 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...
Année(s) de permis: 1993 1992 1989 1988 1987
Résumé: 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...
Studies of the environmental effects of disturbances in the subarctic (SEEDS)
chercheur principal: Kershaw, G. Peter
Année(s) de permis: 2000 1999 1998 1997 1996 1995 1994 1993 1992 1990
Résumé: The research will continue to monitor the effects of disturbance to a site 10 km north of Fort Norman. Trees were cleared and the soil was trenched in 1985 and 1986, and crude oil was spilled in 1988. The researchers are monitoring air and soil temperatures, wind speed, moisture, water movement, permafrost and snow characteristics, plants and animals in order to understand how the ecosystem resp...
Année(s) de permis: 2000 1999 1998 1997 1996 1995 1994 1993 1992 1990
Résumé: The research will continue to monitor the effects of disturbance to a site 10 km north of Fort Norman. Trees were cleared and the soil was trenched in 1985 and 1986, and crude oil was spilled in 1988. The researchers are monitoring air and soil temperatures, wind speed, moisture, water movement, permafrost and snow characteristics, plants and animals in order to understand how the ecosystem resp...
Responses of marine mammals to vessel noise
chercheur principal: Cosens, Susan
Année(s) de permis: 1993 1992
Résumé: In this final year of the study, the researcher will be testing the responses of beluga whales to previously recorded underwater (background) and boat noise. The whales' behaviour to the recorded noises will be measured as a way to determine if belugas alter their behaviour to boat traffic....
Année(s) de permis: 1993 1992
Résumé: In this final year of the study, the researcher will be testing the responses of beluga whales to previously recorded underwater (background) and boat noise. The whales' behaviour to the recorded noises will be measured as a way to determine if belugas alter their behaviour to boat traffic....
Assessment of potential masking of marine mammal sounds by ship noise
chercheur principal: Cosens, Susan
Année(s) de permis: 1993 1992 1991 1990
Résumé: In this final year of study, the researcher will be recording whale sounds as well as `normal' underwater sounds (background noise) and underwater sounds that boats make. The purpose of this research is to determine whether the sounds of boats interfere with the communication that occurs between beluga. The field crew will camp at Cape Lambton and make day trips to the recording sites out on the...
Année(s) de permis: 1993 1992 1991 1990
Résumé: In this final year of study, the researcher will be recording whale sounds as well as `normal' underwater sounds (background noise) and underwater sounds that boats make. The purpose of this research is to determine whether the sounds of boats interfere with the communication that occurs between beluga. The field crew will camp at Cape Lambton and make day trips to the recording sites out on the...
Man's Impact on a Marine Ecosystem
chercheur principal: Reimer, K.J.
Année(s) de permis: 1992 1991
Résumé: The Researchers will collect sediments, algae and molluscs from the waters of Cambridge Bay. Three locations will be sampled: an area receiving drainage from the radar site, an area similarly affected by the hamlet and a reference site located away from the influence of both. Samples will be evaluated in terms of occurance, population and distribution. They will be analyzed for substances arising ...
Année(s) de permis: 1992 1991
Résumé: The Researchers will collect sediments, algae and molluscs from the waters of Cambridge Bay. Three locations will be sampled: an area receiving drainage from the radar site, an area similarly affected by the hamlet and a reference site located away from the influence of both. Samples will be evaluated in terms of occurance, population and distribution. They will be analyzed for substances arising ...
Mass Balance Measurements of White and Baby Glaciers, Axel Heiberg Island. Limnology of Colour Lake and Impact of Human Activity on Colour Lake Wetland
chercheur principal: Adams, Peter
Année(s) de permis: 1993 1991 1990 1988 1987
Résumé: The project will continue to take measurements of the accumulation of snow on the glaciers and try to ascertain how much snow and ice has been lost or gained since it was measured in 1990. Limnology experiments will be conducted on Colour Lake. Ice regimes will be monitored....
Année(s) de permis: 1993 1991 1990 1988 1987
Résumé: The project will continue to take measurements of the accumulation of snow on the glaciers and try to ascertain how much snow and ice has been lost or gained since it was measured in 1990. Limnology experiments will be conducted on Colour Lake. Ice regimes will be monitored....
An Examination of Disturbance to Plant Communities on Truelove Lowland, Devon Island, N.W.T.
chercheur principal: Hewitt, Nina
Année(s) de permis: 1991
Résumé: The Researcher will carry out field work in association with Dr. Cheryl M. Pearce. The research will measure the nature and extent of human disturbance within the dominant plant communities on Truelove Lowland and attempt to correlate the disturbance with species composition, surficial materials, and the type of disturbance....
Année(s) de permis: 1991
Résumé: The Researcher will carry out field work in association with Dr. Cheryl M. Pearce. The research will measure the nature and extent of human disturbance within the dominant plant communities on Truelove Lowland and attempt to correlate the disturbance with species composition, surficial materials, and the type of disturbance....
Site Tenacity of Bowhead Whales and their Vulnerability to Displacement by Disturbance
chercheur principal: Cosens, Susan
Année(s) de permis: 1990
Résumé: The Researcher and team will apply new tag technology and DNA analysis to a study of site tenacity and industrial disturbance of bowhead whales. They will test the feasibility of using sonic tags to track bowheads underwater and will be testing sampling methods for collecting skin from live whales for DNA analysis....
Année(s) de permis: 1990
Résumé: The Researcher and team will apply new tag technology and DNA analysis to a study of site tenacity and industrial disturbance of bowhead whales. They will test the feasibility of using sonic tags to track bowheads underwater and will be testing sampling methods for collecting skin from live whales for DNA analysis....
Expedition Fiord: sedimentary environment since the Ice Ages
chercheur principal: Gilbert, Robert
Année(s) de permis: 1993 1992 1991 1990 1988
Résumé: The researcher and his team will: measure the water flowing into the fiord and the water in the fiord; examine the sediments using an echo sounder that shows that water depths and the layers of sediment down to bedrock; photograph the sea floor; collect samples of the sea floor. Small animals (shells, worms etc) will be preserved for later study. Sediment samples will be studied in detail....
Année(s) de permis: 1993 1992 1991 1990 1988
Résumé: The researcher and his team will: measure the water flowing into the fiord and the water in the fiord; examine the sediments using an echo sounder that shows that water depths and the layers of sediment down to bedrock; photograph the sea floor; collect samples of the sea floor. Small animals (shells, worms etc) will be preserved for later study. Sediment samples will be studied in detail....
Recovery of High Arctic Vegetation from Disturbance by Human Occupation
chercheur principal: Forbes, Bruce C.
Année(s) de permis: 1990 1988
Résumé: Bruce Forbes is looking at how quickly plants are invading the old settlement of Clyde River where the ground was cleared for buildings and roads. This site will be compared to undisturbed ground and similar disburbances at other human occupancy sites within the High Arctic....
Année(s) de permis: 1990 1988
Résumé: Bruce Forbes is looking at how quickly plants are invading the old settlement of Clyde River where the ground was cleared for buildings and roads. This site will be compared to undisturbed ground and similar disburbances at other human occupancy sites within the High Arctic....
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