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- 10Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 4Cahill Lab of Experimental Plant Ecology
- 4Cahill Lab of Experimental Plant Ecology/Journal Articles (Cahill Lab)
- 1Biological Sciences, Department of/Other Publications (Biological Sciences)
- 1Mathematical and Statistical Sciences, Department of
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2004-01-01
Predictions for climate change include movement of temperature isoclines up to 1000 meters per year, and this is supported by recent empirical studies. This paper considers effects of a rapidly changing environment on competitive outcomes between species. The model is formulated as a system of...
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Density-Dependent Effects and the Regulation of Crucian Carp Populations in Single-Species Ponds
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Tonn, W. M., Holopainen, I. J., Paszkowski, C. A.
Crucian carp (Carassius carassius) is often the only fish species present in small ponds of northern Europe. Such populations are typically at high densities and consist primarily of small, relatively slender, and short-lived fish; populations in multispecies assemblages in lakes display opposite...
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Light, wind, and touch influence leaf chemistry and rates of herbivory in Apocynum cannabinum (Apocynaceae)
Download2006-01-01
Cahill, J.F., Ingersoll, C.M., Niesenbaum, R.A.
Simply visiting and manipulating plants in a way consistent with measurement in typical ecological studies influences the amount of leaf herbivory experienced by some plant species. We examined the mechanistic basis for why Apocynum cannabinum is particularly responsive to such visitation and...
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2004
Boyce, M. S., Fortin, D., Merrill, E. H.
Mammalian herbivores can carry out multiple tasks without interrupting food processing, but this possibility is not considered in existing foraging models. We develop a mechanistic functional response to account for herbivores' ability to search for their next food bite and walk away from...
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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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Relationships among diverse root foraging behaviours: understanding plant behavioural types - supporting data
Relationships among diverse root foraging behaviours: understanding plant behavioural types - supporting data
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These are the supporting data for the University of Alberta MSc thesis: Belter, Pamela R. 2014. Relationships among diverse root foraging behaviours: understanding plant behavioural types.
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Sequential decision-making in a variable environment: modeling elk movement in Yellowstone National Park as a dynamic game.
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Potapov, A. B., Noonburg, E. G., Newman, L. A., Lewis, M. A., Crabtree, R. L.
We develop a suite of models with varying complexity to predict elk movement behavior during the winter on the Northern Range of Yellowstone National Park (YNP). The models range from a simple representation of optimal patch choice to a dynamic game, and we show how the underlying theory in each...
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The effect of sex, size and habitat on the incidence of puncture wounds in the claws of the porcelain crab Petrolisthes cinctipes (Anomura: Porcellanidae)
Download2007
Many porcelain crabs have an unusual claw (cheliped) form that is broad, flat and thin. This seemingly flimsy form suggests claws may be used more for display than for feeding or aggressive interactions. However, in the flat-topped porcelain crab Petrolisthes cinctipes, one of the most abundant...