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Skip to Search Results- 7Derocher, A.E.
- 6Auger-Méthé, Marie
- 5Derocher, Andrew E.
- 4Lewis, Mark A.
- 3DeMars, Craig A.
- 3Seale, Linda N.
- 17Biological Sciences, Department of
- 16Graduate and Postdoctoral Studies (GPS), Faculty of
- 16Graduate and Postdoctoral Studies (GPS), Faculty of /Theses and Dissertations
- 12Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 5Canadian Circumpolar Institute
- 5Biological Sciences, Department of/Research Data and Materials (Biological Sciences)
- 16Thesis
- 15Article (Published)
- 5Dataset
- 4Image
- 2Conference/Workshop Presentation
- 1Article (Draft / Submitted)
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1993
If climatic warming occurs, the first impacts on polar bears (Ursus maritirnus) will be felt at the southern limits of their distribution, such as in James and Hudson bays, where the whole population is already forced to fast for approximately four months when the sea ice melts during the summer....
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1996-01-01
Mark Kot, Mark A. Lewis, P. van den Driessch
Models that describe the spread of invading organisms often assume that the dispersal distances of propagules are normally distributed. In contrast, measured dispersal curves are typically leptokurtic, not normal. In this paper, we consider a class of models, integrodifference equations, that...
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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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1999
Two instances of infanticide and cannibalism in polar bears (Ursus maritimus) were observed in SE Svalbard, at Hopen Island. In the first, an adult male killed three young cubs at a den site and consumed one of them. In the second, an adult male actively pursued, killed, and consumed a dependent...
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2000-01-01
Willows, Noreen D., Dewailly, Éric, Gray-Donald, Katherine
The iron status and diet of Inuit infants living in northern Quebec who were part of a prospective cohort study was described. The prevalence of anemia (hemoglobin values >2SD below the reference mean) was 21.1% (23/109), 47.4% (55/116) and 37.7% (46/122) at 2, 6 and 12 months, respectively. The...
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Fatty acid composition of the adipose tissue of polar bears and of their prey: ringed seals, bearded seals and harp seals
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Grahl-Nielsen, O., Lydersen, C., Wiig, Ø., Kovacs, K., Derocher, A.E., Andersen, M.
Polar bears Ursus maritimus are predators of phocid seals, but they also forage opportunistically on a variety of other species. In the Barents Sea—Svalbard area, their diet is thought to consist almost exclusively of ringed seals Phoca hispida, bearded seals Erignathus barbatus and harp seals P....