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2011
We examined the relationship between aspen cover and understory production across two topographic positions and two management systems within the Aspen Parkland of eastern Alberta. Understory biomass typically declined with increasing overstory, with greater yield losses on north-facing forests...
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Bromus-Poa response to defoliation intensity and frequency under three soil moisture levels
Download2002
Hudson, R. J., Donkor, N. T., Bork, E. W.
Smooth brome (Bromus inermis Leyss.) and Kentucky bluegrass (Poa pratensis L.) are important herbage for livestock and wildlife in Aspen-Boreal ecosystems in central Alberta, but there is paucity of information on the relationship between soil moisture and defoliation regimes on herbage...
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Cattle herbage utilization patterns under high density rotational grazing in the Aspen Parkland
Download2003
Asamoah, S. A., Bork, E. W., Irving, B. D., Hudson, R. J., Price, M. A.
Native Aspen Parkland landscapes consist of a complex mosaic of plant communities, including riparian meadows, upland grasslands, and forests. Sustainable livestock production in this environment depends on an understanding of livestock grazing behavior among communities, particularly under...
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Direct and indirect drivers of plant diversity responses to climate and clipping across northern temperate grassland
Download2014
Bork, E. W., White, S. R., Cahill Jr, J. F.
It is well known that climate can influence plant community assembly via a multitude of indirect and direct pathways. However, interpretations of plant diversity responses to simulated climate change experiments, and subsequent predictions of plant communities under future climate scenarios,...
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Effects of flood seasonality and frequency on northern pintail and other breeding ducks in managed prairie wetlands
Download2011
Bork, E. W., Thompson, J. E., Asammoah, S. A.
Anthropogenic flooding to create wetlands is a management option intended to compensate for historical loss of natural wetlands in the Dry Mixedgrass Prairie of western Canada. It may help moderate or reverse declines in density of breeding Northern Pintails (Anas acuta L.) and other waterfowl....
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Herbage yield and crude protein concentration of rangeland and pasture following liquid hog manure application in southeastern Alberta
Download2004
Blonski, L.J., Bork, E. W., Blenis, P.
Intensive hog production is expanding into semi-arid regions of Alberta, where perennial forage lands are increasingly targeted for manure applicati on despite limited guidelines for its efficient use. Herbage yield and crude protein were assessed over two consecutive years within two native...
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2002
Donkor, N. T., Bork, E. W., Hudson, R. J., Naeth, M. A., Gedir, J. V., Chanasyk, D. S.
Livestock trampling impacts have been assessed in many Alberta grassland ecosystems, but the impacts of animal trampling on Aspen Boreal ecosystems have not been documented. This study compared the effects of high intensity [4.16 animal unit month per ha (AUM) ha-1] short-duration grazing (SDG)...
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Long-term forage dynamics in pastures sprayed with residual broadleaf herbicide: A test of legume recovery
Download2015
Miller, A.J., Hall, L. M., Summers, B., Bork, E. W.
Legumes such as alfalfa (Medicago sativa L.) and white clover (Trifolium repensL.) are important components of northern temperate pastures where they increase forage productivity and quality, but are susceptible to decline when exposed to broadleaf herbicides. Little is known about the long-term...
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2002
Bork, E. W., Bogen, A. D., Williams, W. D.
Rough fescue (Festuca campestris Rydb.) is an ecologically and economically important native plant species within grasslands of southwest Alberta. This is also a region where wildfires have become prevalent over the last decade. While the risk of long-term damage from fire may be determined by...
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2004
Irving, B. D., Asamoah, S. A., Hudson, R. J., Bork, E. W., Price, M. A.
We evaluated the temporal dynamics of herbage biomass and protein within riparian meadows and upland grasslands of native Aspen Parkland rangeland to understand the contribution of each to lives tock foraging. For the growing season monitored, meadows were greater in forage yield and crude...