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- 2Cahill, J. F.
- 2Chang, Scott
- 2Sobrinho, Laio Silva
- 2Stachniak, Leah
- 1Attaeian, Behnaz
- 9Graduate and Postdoctoral Studies (GPS), Faculty of
- 9Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 4Cahill Lab of Experimental Plant Ecology
- 4Cahill Lab of Experimental Plant Ecology/Journal Articles (Cahill Lab)
- 2Biological Sciences, Department of
- 2Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 1Adamowicz, Vic (Department of Resource Economics and Environmental Sociology)
- 1Bork, Edward (Agricultural, Food, and Nutritional Science)
- 1Bork, Edward (Agriculture, Food, & Nutritional Science)
- 1Bork, Edward (Agriculture, Food, and Nutritional Science)
- 1Bork, Edward W (Agricultural, Food, and Nutritional Sciences)
- 1Boxall, Peter (Department of Resource Economics and Environmental Sociology)
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Effect of Grazing on Litter Decomposition and Extracellular Enzyme Activity across Agro-climatic Subregions in Alberta
DownloadFall 2017
Grasslands cover approximately 40% of the Earth’s terrestrial surface and provide a wide range of ecologically and economically important services such as forage production, carbon (C) and nitrogen (N) storage, and wildlife habitat. Livestock grazing is a ubiquitous use of grasslands around the...
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Spring 2016
Understanding factors affecting elemental carbon stocks on Alberta’s grasslands is of special importance with recent policy shifts focusing on climate change and carbon (C) emissions. A large part of Alberta is native prairie utilized by the beef industry. This study examined soil and vegetation...
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Fall 2017
Bees are a key component of terrestrial ecosystems and provide valuable ecosystem services to both natural and agricultural landscapes. It estimated that 87.5% of native plants benefit from pollination, including 1/3 of global food crops. Additionally, pollination by bees provides maximized...
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2006
Detailed GIS studies across spatially complex rangeland landscapes, including the Aspen Parkland of western Canada, require accurate digital elevation models (DEM). Following the interpolation of last return lidar (light detection and ranging) data into a DEM, a series of 256 reference plots,...
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2015-04-03
Pipeline construction can disturb land through vegetation removal, soil mixing and compaction, and destruction of biological crusts (microorganisms, lichen, moss). Most efforts to restore native rough fescue after pipeline construction through soil replacement and/or rough fescue seeding have...
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Prevalence and predictability of handling effects on plants in field studies: Results from field experiments and a meta-analysis
Download2003-01-01
Brown, M., Hik, D.S., Weir, J., Dabros, A., Cahill, J.F.
Various effects on plant growth associated with handling or touching plants are well documented from greenhouse and laboratory studies, but are generally unknown or ignored under field conditions. We examined the prevalence of the effects of handling, at levels typical of many ecological...
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Reexamining Sample Size Requirements for Multivariate, Abundance-Based Community Research: When Resources are Limited, the Research Does Not Have to Be
Download2015-01-01
Forcino, F. L., Leighton, L. R., Twerdy, P., Cahill, J. F.
Community ecologists commonly perform multivariate techniques (e.g., ordination, cluster analysis) to assess patterns and gradients of taxonomic variation. A critical requirement for a meaningful statistical analysis is accurate information on the taxa found within an ecological sample. However,...
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Temperature sensitivity of N2O emissions from fertilized agricultural soils: Mathematical modeling in ecosys
Download2008
N2O emissions have been found to be highly sensitive to soil temperature (T-s) which may cause substantial rises in emissions with rises in Ts expected in most climate change scenarios. Mathematical models used to project changes in emissions during climate change should be able to simulate the...
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Spring 2019
Grassland conversion to other land uses is the leading cause of decline in biodiversity in these ecosystems. In remaining grasslands, grazing can have positive or negative effects on biodiversity, and the ability to assess grazing effects is critical to apply informed conservation management...