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Items in Journal Articles (Biological Sciences)

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  1. Effect of Pollination Success on Floral Longevity in the Orchid Calypso bulbosa (Orchidaceae)

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

    The lifespan of an individual flower is often affected by pollination success. Species differ regarding whether male function...

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  2. The effect of sex, size and habitat on the incidence of puncture wounds in the claws of the porcelain crab Petrolisthes cinctipes (Anomura: Porcellanidae)

    by Rypien, K.L.; Palmer, A.R.

    Many porcelain crabs have an unusual claw (cheliped) form that is broad, flat and thin. This seemingly flimsy form suggests...

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  4. Effects of aspen harvesting on groundwater recharge and water table dynamics in a subhumid climate

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

    Numerical experiments were developed using different water table depths and soil textures to investigate the impact of aspen...

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  5. Effects of Bacillus thuringiensis on non-target herbivore and natural enemy assemblages in tropical irrigated rice

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

    Endotoxins from Bacillus thuringiensis (Bt) produced in transgenic pest-resistant Bt crops are generally not toxic to predatory...

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  6. Effects of bulky polycyclic aromatic hydrocarbon adducts on DNA replication by exonuclease-deficient T7 and T4 DNA polymerases

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

    Abstract: In vitro DNA replication by exonuclease-deficient T7 DNA polymerase (Sequenase) and an exonuclease deficient T4...

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  7. Effects of climate and forest structure on duration of forest tent caterpillar outbreaks across central Ontario, Canada

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

    Abstract: We examined the effect of forest structure and climate enlarge-scale and long-term patterns of outbreaks of forest...

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  8. The effects of drought stress on the water relations in Brassica

    by Good, A. G.; MacLagan, J. L.

    The physiological responses of different species of Brassica to induced drought stress were studied by analysing the relationships...

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  9. Effects of explosives on incubating lake trout eggs in the Canadian Arctic

    by Faulkner, S.G.; Tonn, W.M.; Welz, M.; Schmitt, D.R.

    Industrial development, including geophysical exploration and mining, has increased use of explosives in and near fish habitat....

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  10. Effects of exposure to pheromone and insecticide constituents of an attracticide formulation on reproductive behavior of oriental fruit moth (Lepidoptera: Tortricidae)

    by Evenden, M. L.; McLaughlin, J. R.; Czokajlo, D.

    Abstract: The effect of exposure to both the pheromone and insecticide constituents of an attracticide formulation on subsequent...

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  11. Effects of forest harvesting and fire on fish assemblages in Boreal Plains lakes: A reference condition approach

    by Tonn, W.M.; Paszkowski, C.A.; Scrimgeour, G.J.; Aku, P.K.M.; Lange, M.; Prepas, E.E.; Westcott, K.

    To assess the impacts of forest harvesting and fires on lentic fish assemblages in the Boreal Plains ecoregion (Alberta,...

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  13. Effects of Habitat Fragmentation on Pairing Success of Ovenbirds: Importance of Male Age and Floater Behavior

    by Bayne, Erin M.; Hobson, Keith A.

    Between 1996 and 1998, we compared pairing success of territorial male Ovenbirds (Seiurus aurocapillus) in forest fragments...

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  14. Effects of Heterogeneity on Spread and Persistence in Rivers

    by Lutscher, F.; Lewis, M.A.; McCauley, E.

    The question how aquatic populations persist in rivers when individuals are constantly lost due to downstream drift has been...

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  16. Effects of seismic lines on the abundance of breeding birds in the Kendall Island Bird Sanctuary, Northwest Territories, Canada

    by Ashenhurst, A.R.; Hannon, S.J.

    Current plans to increase oil and gas exploration and extraction in the Canadian Arctic include development in the Kendall...

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  17. Effects of simulated blasting on mortality of Rainbow Trout eggs

    by Faulkner, S.G.; Welz, M.; Tonn, W.M.; Schmitt, D.R.

    Blasting in or near water can negatively affect fish. In Canada, there are maximum allowable limits for blasting-induced...

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  18. Effects of solar ultraviolet radiation on stream benthic communities: an intersite comparison

    by Kelly, D. J.; Bothwell, M. L.; Schindler, D. W.

    The effects of solar ultraviolet radiation (UVR), both mid-ultraviolet (UVB; 280-320 nm) and near-ultraviolet (UVA; 320-400...

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  19. Effects of Source of Metacercariae on Experimental Infection of Zygocotyle lunata (Digenea: Paramphistomidae) in CD-1 Mice.

    by Shostak, A.W.; Dharampaul, S.; Belosevic, M.

    Outbred (CD-1 strain) mice were infected experimentally with metacercariae of Zygocotyle lunata obtained from naturally infected...

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  20. Effects of Spatial Structures on the Results of Field Experiments

    by Legendre, P.; Dale, M. R. T.; Fortin, M. J.; Casgrain, P.; Gurevitch, J.

    Abstract: Field experiments have been designed to account for spatial Structures since the inception of randomized complete...

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