Search
Skip to Search Results- 21Derocher, Andrew (Biological Sciences)
- 1Franke, Alastair (Renewable Resources)
- 1Hik, David (Biological Sciences)
- 1Lewis, Mark (Biological Sciences, Mathematical & Statistical Sciences)
- 1Lewis, Mark (Biological Sciences; Mathematical and Statistical Sciences)
- 1Merrill, Evelyn (Biologicial Sciences)
- 1Auger-Méthé, Marie
- 1Barrett, Kimberley G
- 1Biddlecombe, Brooke
- 1Bohart, Alyssa Mary
- 1Boucher, Nicole
- 1Cherry, Seth G.
-
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...
-
Spring 2023
The spatial distributions of animals have fascinated scientists for centuries. Understanding where animals go and why helps ecologists conserve their populations. Technological advances during the 21st century have allowed scientists to record the spatial location of animals over time, motivating...
-
Individual variation in on-ice movement dynamics and site fidelity of western Hudson Bay polar bears
DownloadFall 2023
Individual variation affects fundamental aspects of ecology and behaviour in many species. Individuals vary in sex, age, reproductive status, and personality, which can be compared between individuals (inter-individual) or within individuals (intra-individual). In this dissertation, I tested...
-
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...
-
Using spatial autocorrelation to quantify the effects of sea ice fragmentation on polar bear movement in Hudson Bay
DownloadSpring 2020
Habitat fragmentation occurs when continuous habitat gets broken up as a result of ecosystem change. While commonly studied in terrestrial ecosystems, Arctic sea ice ecosystems also experience fragmentation, but are rarely studied in this context. Most fragmentation analyses are conducted using...
-
Horns and hotspots: detecting change in mountain sheep populations over large spatiotemporal scales
DownloadSpring 2020
Long-term data is essential for addressing questions about how populations change over time in response to environmental variability, and natural and anthropogenic disturbance. Two species of mountain sheep (Ovis spp.) in Canada have been monitored over several decades and provided the data...
-
Spring 2020
Migration is a behavioral response to temporal variation in resources. While migration phenology is often predictable, phenology is expected to shift as climate change alters seasonal resource availability. We used data from satellite-linked telemetry collars on adult female polar bears (Ursus...
-
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...
-
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,...
-
Seasonal patterns of mortality for boreal caribou (Rangifer tarandus caribou) in an intact environment
DownloadSpring 2020
Seasonality is an important component in shaping the dynamics that influence ecosystems, including mortality. Animals experience temporal variation in vulnerability to mortality due to interactions among environmental conditions, nutritional condition, age and life stages, and changes in their...