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Skip to Search Results- 8Derocher, A.E.
- 6Auger-Méthé, Marie
- 6Myers, Paul G.
- 5Derocher, Andrew E.
- 4Lukovich, Jennifer V.
- 3DeMars, Craig A.
- 28Graduate and Postdoctoral Studies (GPS), Faculty of
- 28Graduate and Postdoctoral Studies (GPS), Faculty of /Theses and Dissertations
- 16Biological Sciences, Department of
- 11Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 6Earth and Atmospheric Sciences, Department of
- 6Earth and Atmospheric Sciences, Department of/Journal Articles (Earth and Atmospheric Sciences)
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A baseline evaluation of oceanographic and sea ice conditions in the Hudson Bay Complex during 2016-2018
Download2021-01-01
Lukovich, Jennifer V., Jafarikhasragh, Shabnam, Tefs, A., Myers, Paul G., Sydor, K., Wong, K., Stroeve, Julienne C., Stadnyk, T. A., Babb, D., Barber, D. G.
In this paper, we examine sea surface temperatures (SSTs) and sea ice conditions in the Hudson Bay Complex as a baseline evaluation for the BaySys 2016-2018 field program time frame. Investigated in particular are spatiotemporal patterns in SST and sea ice state and dynamics, with rankings of the...
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1999
We observed a case of adoption of a single four-month-old polar bear cub (Ursus maritimus) into an existing litter of two cubs on Hopen Island, Svalbard. We believe the high density of maternity dens in the study area may increase the likelihood of natural adoption. Speculation about theoretical...
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Arctic cod (Boreogadus saida) hatching in the Hudson Bay system: Testing of the freshwater winter refuge hypothesis
Download2022-01-01
Schembri, Sarah, Deschepper, Inge, Myers, Paul G., Sirois, Pascal, Fortier, Louis, Bouchard, Caroline, Maps, Frederic
Buoyant Arctic cod (Boreogadus saida) eggs are found at the surface or at the ice-water interface in winter. While winter temperatures in saline waters fall below 0 degrees C, the temperature in areas affected by under-ice river plumes is slightly higher. Under-ice river plumes may therefore...
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Assessing stress in western Hudson Bay polar bears using hair cortisol concentration as a biomarker
DownloadFall 2015
The development of novel biomarkers to help assess whether polar bear (Ursus maritimus) health is impacted by long-term physiological stress associated with climate change represents an emerging area of research. With progressively greater reductions in sea ice cover and a corresponding decrease...
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2022-01-01
Barbedo, Lucas, Belanger, Simon, Lukovich, Jennifer V., Myers, Paul G., Tremblay, Jean-Eric
Pulses of ocean primary productivity during the fall season are frequent in the mid-latitudes when ocean cooling and wind-driven turbulence erode the surface stratification and allow the injection of nutrients into the euphotic zone. This phenomenon is often referred to as a phytoplankton fall...
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2020-01-01
Dmitrenko, Igor A., Myers, Paul G., Kirillov, Sergei A., Babb, David G., Volkov, Denis L., Lukovich, Jennifer V., Tao, Ran, Ehn, Jens K., Sydor, Kevin, Barber, David G.
Hudson Bay of northern Canada receives upward of 700 km3 of river discharge annually. Cyclonic water circulation in Hudson Bay transports this massive volume of riverine water along the coast toward Hudson Strait and into the Labrador Sea. However, synoptic, seasonal and interannual variability...
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Brown Bear (Ursus arctos) Predation of Broad Whitefish (Coregonus nasus) in the Mackenzie Delta Region, Northwest Territories
Download2009
On 2 October 2007, we observed evidence of at least one brown bear (Ursus arctos) predating and caching broad whitefish (Coregonus nasus) at Pete’s Creek, a tributary of the Mackenzie River, Northwest Territories. While predation on whitefish by brown bears has been reported as traditional...
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Caribou Data Set
2016-06-10
DeMars, Craig A., Derocher, Andrew E., Auger-Méthé, Marie
This the data associated with the manuscript: Auger-Méthé, M, AE Derocher, DA DeMars, MJ Plank, EA Codling, MA Lewis. Evaluating random search strategies in three mammals from distinct feeding guilds. Journal of Animal Ecology. In Press. The data is the step lengths and turning angles measured...
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Dall sheep (Ovis dalli dalli), grizzly bear (Ursus arctos) and wolf (Canis lupus) interactions in the Northern Richardson Mountains, Canada
DownloadFall 2012
Lambert Koizumi, Catherine M S
Assessing the impact of predators on a prey population is inherently challenging, a fortiori in remote ecosystems. With this thesis, I studied the interactions between a recently declining Dall sheep (Ovis dalli dalli) population and two predators: grizzly bears (Ursus arctos) and wolves (Canis...
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Differentiating the Lévy walk from a composite correlated random walk - Code
2015
Lewis, Mark A., Auger-Méthé, Marie, Plank, Michael J., Codling, Edward A., Derocher, Andrew E.
Source code for an R package that can be used to simulate and apply various search strategy models to movement data. This is the code used in the manuscript entitled: Differentiating the Lévy walk from a composite correlated random walk. See https://github.com/MarieAugerMethe/CCRWvsLW for any...