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Skip to Search Results- 1ANDREW E. DEROCHER
- 1Biddlecombe, Brooke
- 1Castro de la Guardia, Laura
- 1HAL CASWELL
- 1Hamilton, Stephen
- 1JODY R. REIMER
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Anthropogenic influence on the autumn migration of polar bears (Ursus maritimus) in Hudson Bay
DownloadSpring 2022
Migratory species may shift established spatiotemporal patterns in response to anthropogenic impacts, so understanding the energetic consequences of behavioural plasticity may provide insight into how effectively migratory species respond to climate change. I used satellite telemetry to examine...
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Fall 2018
The Arctic and the North Atlantic Oceans are experiencing multiple stresses such as loss of sea ice, changing atmospheric patterns, increasing wind energy at the ocean surface and larger freshwater discharge to coastal regions. To address how the marine system may respond to these stresses I...
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Fall 2012
The Canadian Arctic Archipelago (CAA) is a complex network of straits and basins connecting the Arctic Ocean and the Atlantic Ocean. It is one of the main pathways for freshwater outflow from the Arctic Ocean to the Atlantic Ocean. Circulation and associated variability in the CAA are examined in...
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Spring 2023
Polar bear conservation faces significant challenges under Arctic warming, especially with respect to habitat loss and the resulting impacts on their seasonal energetic uptake and maintenance. Polar bears rely on sea ice for hunting, mating, denning, and rearing of offspring, and the availability...
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2019-01-01
JODY R. REIMER, HAL CASWELL, ANDREW E. DEROCHER, MARK A. LEWIS
Climate change is affecting species’ distributions and abundances worldwide. Baseline population estimates, against which future observations may be compared, are necessary if we are to detect ecological change. Arctic sea ice ecosystems are changing rapidly and we lack baseline population...
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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...