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Skip to Search Results- 22Derocher, Andrew (Biological Sciences)
- 1Foote, Lee (Renewable Resources)
- 1Franke, Alastair (Biological Sciences)
- 1Franke, Alastair (Renewable Resources)
- 1Hik, David (Biological Sciences)
- 1Lewis, Mark (Biological Sciences, Mathematical & Statistical Sciences)
- 1Auger-Méthé, Marie
- 1Barrett, Kimberley G
- 1Biddlecombe, Brooke
- 1Bohart, Alyssa Mary
- 1Boucher, Nicole
- 1Cherry, Seth G.
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Fall 2015
Specialist predators with a limited diet may be less adaptable to environmental change than generalists, which consume a diversity of prey. As the climate changes, ecological homogenization is occurring, where generalist species outcompete specialists, reducing ecosystem complexity. In Arctic...
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Fall 2021
Species interactions are thought to underlie the stability of ecosystems, and nowhere is studying such interactions more important than the rapidly changing Arctic. The foraging behaviour of generalist consumers is influenced by the abundance of multiple resources, and generalists are thought to...
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Spring 2011
Recent research indicates climate change will be amplified in Polar Regions, which will cause decreases to sea ice thickness and extent throughout the Arctic. Polar bears (Ursus maritimus) will be directly affected by changes to Arctic sea ice conditions because they rely on the ice substrate...
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Monitoring Ecosystem Dynamics in the Beaufort Sea using Stable Isotopes in Polar Bears (Ursus maritimus) and Ringed Seals (Pusa hispida)
DownloadSpring 2019
Extensive declines in sea ice extent and thickness are occurring within the Arctic and are projected to continue in the future due to amplified polar warming. As a result, community composition and structure are changing within Arctic ecosystems. Animal diets are influenced by accessibility and...
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Spring 2020
The choices animals make such as what habitat to use or where to live are influenced by individual behavior and life history traits. Gaining insight on space use patterns and habitat selection of a species can help wildlife managers in understanding social dynamics, population size and density,...
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Spring 2020
Polynyas and leads are recurrent areas of open water within sea ice that are important to many Arctic species, including marine mammals; however, the importance to polar bears (Ursus maritimus) has not been examined. The western Hudson Bay flaw lead (hereafter lead) is a major, predictable...
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Genetic structure of a large recolonizing carnivore: the case of the northern cougars (Puma concolor)
DownloadFall 2023
Anthropogenic activities have pressured and altered landscapes resulting in extinctions and extirpations. However, increased conservation efforts and changing management strategies in some large carnivores have resulted in population and range expansion. Population growth and range expansion are...
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Intrapopulation variability in wolf diet revealed using a combined stable isotope and fatty acid approach
DownloadSpring 2018
Naturally occurring stable isotope ratios and fatty acids are two types of chemical biomarkers frequently used to quantitatively estimate consumer diets. Stable isotope values in animal tissues and diets have been evaluated using Bayesian mixing models to provide dietary estimates of consumers in...
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Energy Selection Functions: Modelling the Energetic Drivers of Animal Movement and Habitat Use
DownloadSpring 2021
Energetics are a key driver of animal decision-making, as survival depends on the balance between foraging benefits and movement costs. However, this fundamental perspective is often missing from habitat selection studies, which mainly describe correlations between observed space use and...
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Diet composition and prey selectivity of gray wolves (Canis lupus) in Prince Albert National Park, Saskatchewan
DownloadSpring 2019
Plains bison (Bison bison bison) were nearly driven to extinction in the late 19th century due to overhunting and habitat loss, and populations occurring within their historic range and co-existing with natural predators are exceedingly rare. Studies examining gray wolf (Canis lupus) predation on...