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2003

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

To assess the impacts of forest harvesting and fires on lentic fish assemblages in the Boreal Plains ecoregion (Alberta, Canada), we applied a reference condition approach to 37 lakes in burned, logged, or undisturbed catchments. Fish assemblages in the reference lakes were classified into two...

2001

Pierre, J.P., Paszkowski, C.A., Bears, H.

2001

Bayne, Erin M., Hobson, Keith A.

Between 1996 and 1998, we compared pairing success of territorial male Ovenbirds (Seiurus aurocapillus) in forest fragments created by forestry (n 5 3) and agriculture (n 5 10) to contiguous forest plots (n 5 3) in the southern boreal mixedwood forest of central Saskatchewan. The percentage of...

2006-01-01

McCauley, E., Lewis, Mark A., Lutscher, F.

The question how aquatic populations persist in rivers when individuals are constantly lost due to downstream drift has been termed the “drift paradox.” Recent modeling approaches have revealed diffusion-mediated persistence as a solution. We study logistically growing populations with and...

1994

Tonn, W.M., Paszkowski, C.A.

2008

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 Island Bird Sanctuary, Northwest Territories. Various studies have shown impacts of seismic lines on vegetation, but the effects on bird abundance in the Arctic are poorly...

2008

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

Blasting in or near water can negatively affect fish. In Canada, there are maximum allowable limits for blasting-induced overpressure (100 kPa) and peak particle velocity (PPV; 13 mm/s) to protect fish and their incubating eggs, respectively. No studies, however, have related PPVs from blasting...

2003

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

The effects of solar ultraviolet radiation (UVR), both mid-ultraviolet (UVB; 280-320 nm) and near-ultraviolet (UVA; 320-400 nm), on benthic algal and invertebrate communities were compared in three reaches of a British Columbia coastal stream that differed in the degree of shading by riparian...

1993

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

Outbred (CD-1 strain) mice were infected experimentally with metacercariae of Zygocotyle lunata obtained from naturally infected Helisoma trivolvis. Growth, survival, and fecundity of the parasite and gross pathology in the host were evaluated. Metacercariae from 5 snail sources produced 3...

2004

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

Abstract: Field experiments have been designed to account for spatial Structures since the inception of randomized complete block designs by R. A. Fisher. In recent years, our understanding of spatial structures led to refinements in the design and analysis of field experiments in the face of...