Search
Skip to Search Results- 42Cahill Lab of Experimental Plant Ecology
- 42Cahill Lab of Experimental Plant Ecology/Journal Articles (Cahill Lab)
- 20Biological Sciences, Department of
- 19Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 5Roy Berg Kinsella Research Ranch
- 5Roy Berg Kinsella Research Ranch/Journal Articles (Kinsella Ranch)
- 5Community structure
- 4Competition
- 4Grasslands
- 3Abutilon theophrasti
- 3Thigmomorphogenesis
- 2Biodiversity
-
Presence of a dominant native shrub is associated with minor shifts in the function and composition of grassland communities in a northern savannah
Download2021-01-01
Peetoom Heida, I., Brown, C., Dettlaff, M. A., Oppon, K J., Cahill, J. F.
Ecosystems are spatially heterogenous in plant community composition and function. Shrub occurrence in grasslands is a visually striking example of this, and much research has been conducted to understand the functional implications of this pattern. Within savannah ecosystems, the presence of...
-
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...
-
Rapid Increases in Forest Understory Diversity and Productivity following a Mountain Pine Beetle (Dendroctonus ponderosae) Outbreak in Pine Forests
Download2015-01-01
Pec, G. J., Karst, J., Sywenky, A. N, Cigan, P. W., Erbilgin, N., Simard, S. W., Cahill, J. F.
The current unprecedented outbreak of mountain pine beetle (Dendroctonus ponderosae) in lodgepole pine (Pinus contorta) forests of western Canada has resulted in a landscape consisting of a mosaic of forest stands at different stages of mortality. Within forest stands, understory communities are...
-
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,...
-
2012-01-01
Boutin, S., He, F., Sólymos, P., Cahill Jr, J. F., Mayor, S.J.
The worldwide biodiversity crisis has intensified the need to better understand how biodiversity and human disturbance are related. The 'intermediate disturbance hypothesis' suggests that disturbance regimes generate predictable non-linear patterns in species richness. Evidence often contradicts...
-
2018-01-01
Dettlaff, M. A, Marshall, V., Erbilgin, N., Cahill, J. F.
Although the negative effects of root herbivores on plant fitness are expected to be similar to those of above-ground herbivores, the study of below-ground plant defences is limited compared to the rich literature on above-ground defences. Current theory predicts that concentrations of defensive...
-
2014-01-01
Cameron, E. K., Cahill Jr, J. F., Bayne, E. M.
Interactions among the foraging behaviours of co-occurring animal species can impact population and community dynamics; the consequences of interactions between plant and animal foraging behaviours have received less attention. In North American forests, invasions by European earthworms have led...
-
Scaling Disturbance Instead of Richness to Better Understand Anthropogenic Impacts on Biodiversity
Download2015-01-01
Mayor, S. J., Cahill, J. F., He, F., Boutin, S.
A primary impediment to understanding how species diversity and anthropogenic disturbance are related is that both diversity and disturbance can depend on the scales at which they are sampled. While the scale dependence of diversity estimation has received substantial attention, the scale...
-
Separate effects of human visitation and touch on plant growth and herbivory in an old-field community
Download2002-01-01
Cahill, J. F., Castelli, J. P., Casper, B. B.
Although animal scientists have long been aware that methods used to measure an experimental system can affect the subject of measurement, similar confounding effects of commonly used field methods have only recently been acknowledged by plant ecologists. Here we demonstrate significant effects...
-
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...