Search
Skip to Search Results- 2Isaac-Renton, Miriam G
- 1Agrawal, Nikhil
- 1Arregoces, Julio
- 1Baah-Acheamfour, Mark
- 1Boyce, Scott Samuel David
- 1Bozan, Ozgur
-
Nitrogen Loadings in Stormwater and Snowmelt from Cold-region Urban Catchments in 1991 – 2018 and Prediction for Year 2050
DownloadSpring 2022
Urban stormwater and snowmelt runoff has become a primary source of pollution in receiving water bodies (e.g., rivers, lakes and oceans), causing eutrophication, harmful algae blooms and hypoxia and many other environmental issues. It is therefore imperative to study pollutant loadings from urban...
-
Afforestation and stand age affected soil respiration and net ecosystem productivity in hybrid poplar plantations in central Alberta, Canada
DownloadFall 2010
Afforestation and stand development can significantly affect soil respiration and net ecosystem productivity (NEP). I studied 1) the effects of afforestation on NEP by comparing cropland previously planted to barley (on a barley-barley-alfalfa-alfalfa-alfalfa rotation) and that converted to a...
-
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...
-
Spring 2016
After decades of recent fire exclusion in southern Alberta, Canada, forests are progressively aging and landscape mosaics are departing from their historical conditions. A large-scale fire history study spanning three natural subregions: Subalpine, Montane and Upper Foothills, was undertaken to...
-
Biodiversity of soil arthropods in a native grassland in Alberta, Canada: obscure associations and effects of simulated climate change
DownloadFall 2013
Soils have traditionally been treated as a “black box” due to the challenges of studying this complex medium. The living component of soil consists of a complex network of roots and mostly very small, highly abundant, and extremely diverse group of microbes, protists, and other invertebrates. In...
-
Environmental Migration in an Era of Accelerated Climate Change: Proposing a Normative Framework for International Migrant Rights and Domestic Migration Policy
DownloadFall 2015
This dissertation takes up the challenge of addressing the growing gap between international human rights and the changing face of migration in a period of accelerated climate change. The conditions of climate change are increasingly displacing peoples through rising sea levels, desertification...
-
Spring 2016
Reclamation of northern disturbances is of increasing importance as industrial activities and associated infrastructure expands to accommodate growing human reliance on world ecosystems. Bryophytes are recognized as ecologically essential to northern ecosystems and effectively promoting their...
-
Fall 2010
Climate change is currently a central problem in ecology, with far-reaching effects on species that may be diffcult to quantify. Ectothermic species which rely on environmental cues to complete successive stages of their life history are especially sensitive to temperature changes and so are good...
-
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...
-
Spring 2014
The worldwide biodiversity crisis has intensified the need to better understand how biodiversity and human disturbance are related. Yet this relationship lacks both consensus in theoretical expectations and consistency in observed empirical patterns. I present one of the largest extent studies...