Search
Skip to Search Results- 163Biological Sciences, Department of
- 121Biological Sciences, Department of/BioSci OER
- 36Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 5Biological Sciences, Department of/Other Publications (Biological Sciences)
- 1Biological Sciences, Department of/R.E. Peter Biology Conference
- 1Cahill Lab of Experimental Plant Ecology
- 121University of Alberta, Department of Biological Sciences
- 3Devito, K.J.
- 3Stockey, R.A.
- 3Tonn, W. M.
- 3Tonn, W.M.
- 2Boyce, M. S.
-
Density-Dependent Effects and the Regulation of Crucian Carp Populations in Single-Species Ponds
Download1994
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...
-
Disruption of a belowground mutualism alters interactions between plants and their floral visitors
Download2008-01-01
Cahill, J. F., Shore, B. H., Smith, G. R., Elle, E.
Plants engage in diverse and intimate interactions with unrelated taxa. For example, aboveground. oral visitors provide pollination services, while belowground arbuscular mycorrhizal fungi (AMF) enhance nutrient capture. Traditionally in ecology, these processes were studied in isolation,...
-
Distribution of entocytheridae (Crustacea: Ostracoda) in the northern prairies of north america and reports of opportunistic clitellate annelids on crayfish hosts.
Download2011
Williams, B. W., Williams, K. L., Gelder, S. R., Proctor, H. C.
ABSTRACT.—Northern crayfish, Orconectes virilis (Hagen, 1870), were collected from 89 sites across Alberta, Saskatchewan, Manitoba, Montana, North Dakota, and Minnesota. The entocytherid ostracod Thermastrocythere riojai (Hoff, 1943) was found on O. virilis at 45 of the 89 sites, distributed...
-
Effects of aspen harvesting on groundwater recharge and water table dynamics in a subhumid climate
Download2011
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...
-
Effects of forest harvesting and fire on fish assemblages in Boreal Plains lakes: A reference condition approach
Download2003
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...
-
Enhancing productive capacity in the Canadian Arctic: Assessing the effectiveness of instream habitat structures in habitat compensation
Download2004
We examined the effectiveness of physical habitat structures (ramps, V-weirs, vanes, and groins) at increasing the productive capacity of a newly created 3.4-km artificial stream in the Barrenlands region of the Northwest Territories, Canada. We quantified changes in fish density and growth in...
-
Evaluating wildlife passage use and discovery for small and medium sized mammals in an Eastern Canadian boreal forest
Download2015-08-14
Martinig, April Robin, Desrochers, André , Jaeger, Jochen
Paper presented at the 100th Annual Meeting of the Ecological Society of America in 2015. BACKGROUND/QUESTION/METHODS: While many studies have looked at how large mammals respond to road mitigation measures, few studies have examined the effects on smaller mammals or taken a multispecies...
-
2018-01-01
The goal of this guide is to derive a better understanding of the biodiversity of sponges across the eastern Canadian Arctic. Specimens were collected during research cruises aboard the Canadian Coast Guard Ship (CCGS) Amundsen in October 2015, July 2016 and July 2017. Collection sites were...
-
2018
University of Alberta, Department of Biological Sciences
This is an image of fish gill rakers. This specimen is observed in Survey of Vertebrates, Zoology 224. This image was created as part of the University of Alberta OER image database project in Biological Sciences. Identifier 2035I.
-
2018
University of Alberta, Department of Biological Sciences
This is an image of molariform teeth in fish. This specimen is observed in Survey of Vertebrates, Zoology 224. This image was created as part of the University of Alberta OER image database project in Biological Sciences. Identifier 2051I.