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- 2Pinel-Alloul, Bernadette
- 1Holmes, Teslin G.
- 1Keenan, Kathleen M
- 1Leavitt, P. R.
- 1Loewen, Charlie J
- 8Graduate and Postdoctoral Studies (GPS), Faculty of
- 8Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
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- 1Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 3Vinebrooke, Rolf (Biological Sciences)
- 1David W. Schindler (Department of Biological Sciences, University of Alberta)
- 1Paszkowski, Cynthia (Department of Biological Sciences)
- 1Proctor, Heather (Biological Sciences)
- 1Rolf D. Vinebrooke (Department of Biological Sciences, University of Alberta)
- 1Schindler, David (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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Climate Change Impacts on Stoichiometry, Phytoplankton, and Zooplankton in Alpine Lake Food Webs
DownloadFall 2013
The main hypothesis of this study was that warmer and drier conditions affect fishless alpine lakes by increasing (1) phosphorus (P)-availability, (2) P-limited autotrophs versus mixotrophic phytoflagellates, and (3) fast-growing P-limited cladocerans versus slower-growing nitrogen (N)-rich...
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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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1999
Leavitt, P. R., Vinebrooke, R. D.
Differential sensitivities of benthic and planktonic communities to UV radiation may involve differences in habitat conditions (e.g., availability of physical refuge), taxonomic composition, UV-A (320-400 nm) and DNA-damaging UV-B (280-320 nm) irradiances, and potential indirect effects via...
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Effects of Stocked Trout, Native Small-bodied Fish, and Winter Surface Aeration on Zooplankton in Small Boreal Foothills Lakes
DownloadFall 2012
Trout are commonly stocked into Alberta lakes to enhance angling opportunities. Many of these lakes contain native fish and require aeration to prevent trout winterkill. I assessed effects of trout and native fish on zooplankton abundance, biomass, size, community composition, and vertical...
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Planktonic responses to nitrogen and phosphorus deposition - a natural alpine pond experiment
DownloadFall 2010
Several lines of evidence suggest small alpine lakes and ponds are sensitive to nitrogen deposition. Paleolimnological studies, nutrient bioassays, and mesocosm experiments show the positive effects of nitrogen on aquatic alpine primary producers. In particular, alpine pond ecosystems have been...
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Responses of aquatic invertebrate assemblages to an iron treatment aimed at reducing internal phosphorus loading
DownloadSpring 2013
This mesocosm study investigates changes in aquatic invertebrate assemblages in response to iron application, a remediation treatment that inhibits internal phosphorus loading in culturally-eutrophied freshwaters. To determine the effects of ferric chloride application on aquatic invertebrates, I...
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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...