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Skip to Search Results- 6Pollock, Karen
- 5Derocher, A.E.
- 3Andrew E. Derocher
- 3Mark A. Lewis
- 2Derocher, A. E.
- 2Derocher, Andrew E.
- 15Graduate and Postdoctoral Studies (GPS), Faculty of
- 15Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
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- 12Biological Sciences, Department of/Journal Articles (Biological Sciences)
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A body composition model to estimate mammalian energy stores and metabolic rates from body mass and body length, with application to polar bears
Download2009-01-01
Derocher, Andrew E., Klanjscek, Tin, Molnár, Péter K., Lewis, Mark A., Obbard, Martyn E.
Many species experience large fluctuations in food availability and depend on energy from fat and protein stores for survival, reproduction and growth. Body condition and, more specifically, energy stores thus constitute key variables in the life history of many species. Several indices exist to...
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A multiple case history and systematic review of adoption, diffusion, implementation and impact of provincial daily physical activity policies in Canadian schools
Download2015-01-01
Olstad, D. L., Campbell, E. J., Raine, K. D., Nykiforuk, Candace I.J.
Background: Few children meet physical activity (PA) recommendations, and are therefore at increased risk for overweight/obesity and adverse health outcomes. To increase children’s opportunities for PA, several Canadian provinces have adopted school-based daily PA (DPA) policies. It is not clear...
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Academic Skills of Children Adopted from China: School-age Follow-up
2011-01-13
Pollock, Karen, Gerke, Jenessa, Fleming, Jennifer
This study investigated the academic skills of 68 school-age children adopted from China as infants/toddlers.
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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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Adoption of the Alberta Nutrition Guidelines for Children and Youth: Assessing Organizational Behaviour Change in Childcare Organizations
DownloadSpring 2012
In 2008, the Alberta Government released the Alberta Nutrition Guidelines for Children and Youth as a resource for childcare facilities to translate nutrition recommendations into practical food choices. Using a multiple case study method, early adoption of the guidelines was examined in two...
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2007
A case of polar bear infanticide and cannibalism is reported from Phippsøya, Svalbard. In this instance, a cub of some 7 months was killed by an adult male bear, which was in poor condition, in the close proximity of the mother,which was also in poor condition. It seems probable that the attack...
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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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Assessing stress in western Hudson Bay polar bears using hair cortisol concentration as a biomarker
DownloadFall 2015
The development of novel biomarkers to help assess whether polar bear (Ursus maritimus) health is impacted by long-term physiological stress associated with climate change represents an emerging area of research. With progressively greater reductions in sea ice cover and a corresponding decrease...
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2009
In this article, we use narratives of cultural identity among U.S. parents of children adopted from China to conceptually explore the ideas that underwrite socially intelligible kinship. Although these narratives address the cultural heritage of the child, we find that they also perform a kind of...