Journal Articles (Biological Sciences)

2006

Roland, J.

Abstract: Melanism in the Sulphur butterfly Colias nastes Boisduval was quantified and related to their ability to remain active under cool or cloudy conditions and to their risk of predation. Darker individuals were more active, moved greater distances, and disappeared from the population at a...

2003

Hannon, Susan, J., Eason, Perri K.

One function of territorial defense may be to facilitate mate guarding by resident males. To assess the importance of mate guarding in territoriality, we examined the spatial pattern of intrusions by male Willow Ptarmigan(Lagopusla gopus) on the territories of other males and we compared use of...

2000

Rubia, L., Ghareyazie, B., Alinia, F., Bennett, J., Cohen, M. B.

Abstract: The resistance of vegetative, booting, and flowering stage plants of a variety of an aromatic rice, Oryza sativa L., transformed with a Bacillus thuringiensis Berliner cry1Ab gene under control of the maize phosphoenolpyruvate carboxylase (PEPC) promoter was evaluated against four...

1995

Proctor, H.C., Harder, L.D.

The lifespan of an individual flower is often affected by pollination success. Species differ regarding whether male function (pollen removal), female function (pollen deposition), or both trigger floral senescence. We studied senescence in the single- flowered, deceptive orchid Calypso bulbosa...

2011-01-01

Cooke, Janice E. K., Blanchet, F. Guillaume, Lusebrink, Inka, Erbilgin, Nadir, Evenden, Maya L.

The mountain pine beetle (Dendroctonus ponderosae, MPB) has killed millions of lodgepole pine (Pinus contorta) trees in Western Canada and recent range expansion has resulted in attack of jack pine (Pinus banksiana) in Alberta. Establishment of MPB in the Boreal forest will require use of jack...

2004

Friesen, K. J., Kaufman, W. R.

2011

Devito, K.J., Mendoza, C.A., Smerdon, B.D., Carrera-Hernández, J. J., Petrone, R.M.

Numerical experiments were developed using different water table depths and soil textures to investigate the impact of aspen harvesting on hydrological processes on the Western Boreal Plain. The effect of harvesting on soil moisture dynamics, fluxes at the water table, and water table fluctuation...

2003

Cohen, Michael, B., Gaolach, Bradley, Viagante, Vicente D., Zhang, Wenjun, Schoenly, Kenneth G., Barrion, Alberto, T.

Endotoxins from Bacillus thuringiensis (Bt) produced in transgenic pest-resistant Bt crops are generally not toxic to predatory and parasitic arthropods. However, elimination of Bt-susceptible prey and hosts in Bt crops could reduce predator and parasitoid abundance and thereby disrupt biological...

1998

Day, B. W., Reha-Krantz, L., Shukla, R., Melacrinos, A., Keohavong, P.

Abstract: In vitro DNA replication by exonuclease-deficient T7 DNA polymerase (Sequenase) and an exonuclease deficient T4 DNA polymerase was examined on a 244-nucleotide DNA template treated with three electrophilic polycyclic aromatic hydrocarbon (PAH) metabolites: racemic...

1998

Cooke, B., Roland, J., Mackey, B. G.

Abstract: We examined the effect of forest structure and climate enlarge-scale and long-term patterns of outbreaks of forest tent caterpillar, Malacosoma disstria Hbn., across central Ontario. This was done using previously published data on outbreak duration and forest heterogeneity, combined...