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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
- 15Biological Sciences, Department of
- 13Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 2Biological Sciences, Department of/Research Data and Materials (Biological Sciences)
- 2Mathematical and Statistical Sciences, Department of
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2024-04-22
Nichol, Chad, Krebs-Elaschuk, Aiden
The hairy woodpecker, Picoides villosus, is a small bird native to North America and common in the Camrose region. Consuming small arthropods and nesting in the self-excavated cavities of dead trees, the woodpecker has many ecological relationships. The hairy woodpecker competes with other...
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Spatial Predation Risk and Interactions Within a Predator Community on the Rocky Mountains East Slopes, Alberta
DownloadSpring 2019
Understanding how large carnivores spatially partition the landscape is essential for understanding how they collectively pose risk to their prey. Most research on predation risk focuses on how prey respond to a single predator species, but prey respond to a community of predators. Additionally,...
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Fall 2019
Although typically referred to as a generalist species, individual prey specialization has been documented in cougars (Puma concolor). This behaviour has the potential to limit and regulate ungulate dynamics, particularly in cases where ungulates exist in small or isolated populations. Cougars...
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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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2015-01-01
Peacock, Stephanie J., Krkošek, Martin, Bateman, Andrew W., Lewis, Mark A.
There is an increasing realization of the diverse mechanisms by which parasites and pathogens influence the dynamics of host populations and communities. In multi‐host systems, parasites may mediate food web dynamics with unexpected outcomes for host populations. Models have been used to explore...
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Fall 2015
Specialist predators with a limited diet may be less adaptable to environmental change than generalists, which consume a diversity of prey. As the climate changes, ecological homogenization is occurring, where generalist species outcompete specialists, reducing ecosystem complexity. In Arctic...
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Fall 2015
The current rate and extent of human-induced changes to the environment are unprecedented. There is an urgent need to understand and predict the dynamics of coupled human and natural systems so that we can maintain the ecosystem services on which we depend. Temperate coastal regions have...
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2014-01-01
Peacock, Stephanie J., Connors, Brendan M., Krkošek, Martin, Irvine, James R., Lewis, Mark A.
The impact of parasites on hosts is invariably negative when considered in isolation, but may be complex and unexpected in nature. For example, if parasites make hosts less desirable to predators then gains from reduced predation may offset direct costs of being parasitized. We explore these...
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Fall 2014
Multiple carnivore species can have greater population limiting effects than single carnivores. Two coexisting carnivores can only be similar up to a certain extent. I investigate how two carnivores, wolves (Canis lupus) and cougars (Puma concolor), coexist through niche partitioning in the...