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Skip to Search Results- 20Biological Sciences, Department of
- 20Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 12Cahill Lab of Experimental Plant Ecology
- 12Cahill Lab of Experimental Plant Ecology/Journal Articles (Cahill Lab)
- 1Renewable Resources, Department of
- 1Renewable Resources, Department of/Journal Articles (Renewable Resources)
- 7Abutilon theophrasti
- 7Asymmetric competition
- 7Community organization
- 7Nonadditive effects
- 7Old field
- 7Productivity gradient
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2012-01-01
Ideas about how plant competition varies with productivity are rooted in classic theories that predict either increasing (Grime) or invariant (Tilman) competition with increasing productivity. Both predictions have received experimental support, although a decade-old meta-analysis supports...
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2011-01-01
Karst, J., Cahill, J. F., Lyons, D.
This paper is the product of a seminar led by JC Cahill in response to a request by many graduate students and post-docs in our department to teach effective writing strategies. Rather than go over the mechanics of writing, JC introduced the concept of “pitch” and its importance in scientific...
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Short-Term Plant Community Responses to Warming and Defoliation in a Northern Temperate Grassland
Download2011-01-01
Bork, E. W., Cahill, J. F., Deutsch, E. S., Chang, S. X.
Little is known about the short-term impacts of warming on native plant community dynamics in the northern Canadian prairies. This study examined the immediate effects of elevated temperature and defoliation on plant community diversity, composition, and biomass within a native rough fescue...
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Independent evolution of leaf and root traits within and among temperate grassland plant communities
Download2011-01-01
In this study, we used data from temperate grassland plant communities in Alberta, Canada to test two longstanding hypotheses in ecology: 1) that there has been correlated evolution of the leaves and roots of plants due to selection for an integrated whole-plant resource uptake strategy, and 2)...
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Applying behavioral-ecological theory to plant defense: Light-dependent movement in Mimosa pudica suggests a trade-off between predation risk and energetic reward
Download2011-01-01
Dill, L. M., Cahill, J. F., Jensen, E. L.
Many animal species tolerate different amounts of predation risk based on environmental conditions and the individual's own condition, often accepting greater risk when energetically stressed. We studied the sensitive plant Mimosa pudica to see whether it too accepts greater risk of predation...
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2009-01-01
Cahill, J. F., Mitchell, M. G. E., Hik, D. S.
We investigated whether plant interaction intensity in a subarctic-alpine meadow is important for determining community structure and species abundance. Using two common species as phytometers, we measured interaction intensity using a neighbor removal approach. Eight biotic and abiotic variables...
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Disruption of a belowground mutualism alters interactions between plants and their floral visitors
Download2008-01-01
Cahill, J. F., Shore, B. H., Smith, G. R., Elle, E.
Plants engage in diverse and intimate interactions with unrelated taxa. For example, aboveground. oral visitors provide pollination services, while belowground arbuscular mycorrhizal fungi (AMF) enhance nutrient capture. Traditionally in ecology, these processes were studied in isolation,...
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2006-01-01
Cahill, J. F., Lamb, E. G., Dale, M. R. T.
An individual's competitive ability is often dependent on its size, but the methods commonly used to analyze plant competition experiments generally assume that the outcome of interactions are size independent. A method for the analysis of experiments with paired competition treatments based on...
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2005
Dale, M. R. T., MacDonald, S. E., Peters, V. S.
Abstract: We used the mast-seeding tree Picea glauca (white spruce) to examine whether the timing of mast years relative to fire had a lasting effect on the density and timing of regeneration. We studied 17 fires that occurred in mast years and in years with low cone production between 1941 and...