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Skip to Search ResultsResults for "supervisors_tesim:"Vinebrooke, Rolf (Biological Sciences)""
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A Functional Approach Reveals Zooplankton Responses to Environmental Change in Mountain Lakes
DownloadFall 2017
Concern is increasing over the future cumulative impacts of multiple stressors on freshwater biodiversity and ecosystem function, especially in alpine environments where climatic warming increases with elevation. Here, consideration of individual species traits enables translation of changes in...
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Benthic Responses to Nitrogen and Phosphorus Deposition on Alpine Ponds in Banff National Park: A Replicated Whole-Ecosystem Experiment
DownloadFall 2012
Nitrogen (N) and Phosphorous (P) deposition at high elevations has increased by 40% over the last fifteen years, causing concern for the 3000+ alpine ponds in Banff National Park. A novel whole-ecosystem experiment was used to test for the effects of elevated N and P deposition on benthic...
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Cumulative Impacts of Multiple Stressors on Aquatic Communities: Novel Fish Predators in Warming Mountain Lakes
DownloadFall 2015
Novel anthropogenic perturbations (i.e. stressors) often mediate the effects of each other, generating “ecological surprises”. While the cumulative impact of certain stressors on individual organisms and populations is becoming better understood, little is known about how their net effects...
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Fall 2023
Montane rivers are some of the most pristine water sources on earth, providing a wide variety of ecosystem services to downstream regions. However, these cold-water ecosystems are at risk due to climatic warming and other anthropogenic impacts. Importantly, they are potentially being impacted by...
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Fall 2023
Global warming is contributing to extreme climatic events, especially at higher elevations and latitudes. Phytoplankton assemblages are highly sensitive to these climate-related environmental changes, which include heatwaves and drought events. Knowledge gaps exist concerning the cumulative...
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Spring 2012
Decades of fish introductions into mountain lakes have altered invertebrate communities. I assessed the current status of fish populations and their effects on crustacean zooplankton communities by sampling 37 lakes in the mountain parks, where stocking practices had been halted over 25 years...
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Phytoplankton communities as indicators of environmental change and nutrient deposition in the Canadian Rockies
DownloadSpring 2020
Remote mountain water bodies integrate the impacts of regional factors (e.g. climate change, atmospheric pollutants) well because of the relative absence of confounding local perturbations (e.g. human land-use). Climatic factors can alter the abiotic environments within mountain lakes through...
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Fall 2019
Elevational gradients are ideal ecological venues for testing how communities respond to environmental changes associated with global warming. Recent warming rates have been shown to increase with elevation, thereby potentially having adverse effects on cold-adapted alpine communities....
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Fall 2017
Multiple novel and rapidly changing environmental factors (i.e. anthropogenic stressors) are increasingly affecting ecological communities, and their functional roles in ecosystems. Consequently, freshwater biodiversity has declined worldwide; however, the functional impacts of this loss should...
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The Cell Biology And Ecology Of Heterotrophic Eukaryotes In A Tailings Reclamation Site In Northern Alberta
DownloadFall 2020
The wastewater products from the bitumen extraction process, called tailings, are contained in pits which cover over 77km2 of the Northern Albertan landscape. Reclaiming these tailings is an essential part of the life cycle of oil sands mines. One method under development converts tailings ponds...