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- W3043075560 endingPage "451" @default.
- W3043075560 startingPage "440" @default.
- W3043075560 abstract "Abstract Migration is predicted to change both spatially and temporally as climate change alters seasonal resource availability. Species in extreme environments are especially susceptible to climate change; hence, it is important to determine environmental and biological variables that influence their migration. Polar bears (Ursus maritimus) are an Arctic apex carnivore whose migration phenology has been affected by climate change and is vulnerable to future changes. Here, we used satellite-linked telemetry collar data from adult female polar bears in western Hudson Bay from 2004 to 2016 and multivariate response regression models to demonstrate that 1) spatial and temporal migration metrics are correlated, 2) ice concentration and wind are important environmental variables that influence polar bear migration in seasonal ice areas, and 3) migration did not vary across the years of our study, highlighting the importance of continued monitoring. Specifically, we found that ice concentration, wind speed, and wind direction affected polar bear migration onto ice during freeze-up and ice concentration and wind direction affected migration onto land during breakup. Bears departed from land earlier with increased wind speed and the effect of wind direction on migration may be linked to prey searching and ice drift. Low ice concentration was associated with higher movement during freeze-up and breakup. Our findings suggest that migration movement may increase in response to climate change as ice concentration and access to prey declines, potentially increasing nutritional stress on bears." @default.
- W3043075560 created "2020-07-23" @default.
- W3043075560 creator A5013054319 @default.
- W3043075560 creator A5014669013 @default.
- W3043075560 creator A5067251707 @default.
- W3043075560 creator A5068538650 @default.
- W3043075560 date "2021-03-09" @default.
- W3043075560 modified "2023-10-14" @default.
- W3043075560 title "Migration dynamics of polar bears (<i>Ursus maritimus</i>) in western Hudson Bay" @default.
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- W3043075560 doi "https://doi.org/10.1093/beheco/araa140" @default.
- W3043075560 hasPublicationYear "2021" @default.
- W3043075560 type Work @default.