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Skip to Search Results- 16Graduate and Postdoctoral Studies (GPS), Faculty of
- 16Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 8Oil Sands Research and Information Network (OSRIN)
- 7Oil Sands Research and Information Network (OSRIN)/AOSERP Reports
- 6Biological Sciences, Department of
- 5Biological Sciences, Department of/Journal Articles (Biological Sciences)
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Wolves Influence Elk Movements: Behavior Shapes a Trophic Cascade in Yellowstone National Park
Download2005
Fortin, D., Beyer, H. L., Smith, D. W., Boyce, M. S., Mao, J. S., Duchesne, T.
A trophic cascade recently has been reported among wolves, elk, and aspen on the northern winter range of Yellowstone National Park, Wyoming, USA, but the mechanisms of indirect interactions within this food chain have yet to be established. We investigated whether the observed trophic cascade...
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Fall 2017
The degree to which predator and prey distributions overlap in space influences the probability of encounters between predator and prey, kills of prey, and consequently, how each species’ abundance varies in time and in space. Predator and prey attempt to increase or decrease overlap respectively...
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2007
Merrill, E., Varley, N., Boyce, M. S., Beyer, H. L.
Reintroduction of wolves (Canis lupus) to Yellowstone National Park in 1995–1996 has been argued to promote a trophic cascade by altering elk (Cervus elaphus) density, habitat-selection patterns, and behavior that, in turn, could lead to changes within the plant communities used by elk. We...
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1985
Hoskin, B., Wilk, J., Woolnough, K., Nietfeld, M.
This manual attempts to summarize and highlight information to assist in defining species habitat relationships relevant to Alberta environments and for a number of Alberta wildlife species. The degree of specificity of the summaries, in part or whole, varies according to the background...
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Wildfires and climate change: their effects on moose (Alces alces) and white-tailed deer (Odocoileus virginianus) winter habitat in the boreal mixedwoods of Alberta, Canada
DownloadFall 2021
Understanding how species respond to wildfires and climate change is fundamental for land use management and biodiversity conservation. Wildfires provide generalist ungulates, such as moose (Alces alces) and white-tailed deer (Odocoileus virginianus), with high quantity and quality of winter...
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Trade-offs between predation risk and forage differ between migrant strategies in a migratory ungulate
Download2009
Trade-offs between predation risk and forage fundamentally drive resource selection by animals. Among migratory ungulates, trade-offs can occur at large spatial scales through migration, which allows an \"escape'' from predation, but trade-offs can also occur at finer spatial scales. Previous...
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The Role of Human Altered Landscapes and Predators in the Spatial Overlap Between Moose, Wolves, and Endangered Caribou
DownloadFall 2014
Human altered landscapes can cause the endangerment or extinction of a species, not only by a direct loss of habitat but by altering predator-prey relationships. Predators can drive prey to extinction when the density of the predator becomes subsidized by another abundant, alternate prey. Such...
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The life cycle and systematics of Parelaphostrongylus odocoilei (Nematoda: Metastrongyloidea), a a parasite of mule deer (Odocoileus hemionus hemionus), with special reference to the molluscan intermediate host
Download1978
Doctoral thesis. Study area was within a 9 km radius of Jasper townsite.
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1978
A stratified random sampling procedure involving a helicopter census of square-mile (2.6 km2) quadrats in a 648 mi2 (1,678 km2) pilot area in the AOSERP study area was continued in February 1977. The census produced a weighted mean estimate of 0.49 moose/mi2 (0.19/km2), or a study area estimate...