Relationships between abundances of breeding ducks and attributes of Canadian prairie wetlands

2017 ◽  
Vol 41 (3) ◽  
pp. 416-423
Author(s):  
Blake Bartzen ◽  
Kevin W. Dufour ◽  
Mark T. Bidwell ◽  
Michael D. Watmough ◽  
Robert G. Clark
Keyword(s):  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Breeding Ducks

scholarly journals Effects of Flood Seasonality and Frequency on Northern Pintails and other Breeding Ducks in Managed Prairie Wetlands

2011 ◽  
Vol 71 (3) ◽  
pp. 349-360
Author(s):  
Stephen A. Asamoah ◽  
Edward W. Bork ◽  
Jonathan E. Thompson
Keyword(s):  
Prairie Wetlands ◽  
Breeding Ducks ◽  
Northern Pintails

Dissipation of glyphosate and aminomethylphosphonic acid in water and sediment of two Canadian prairie wetlands

2012 ◽  
Vol 47 (7) ◽  
pp. 631-639 ◽  
Author(s):  
Dani Degenhardt ◽  
David Humphries ◽  
Allan J. Cessna ◽  
Paul Messing ◽  
Pascal H. Badiou ◽  
...  
Keyword(s):  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Water And Sediment ◽  
Aminomethylphosphonic Acid

Dissipation of six acid herbicides in water and sediment of two Canadian prairie wetlands

2011 ◽  
Vol 30 (9) ◽  
pp. 1982-1989 ◽  
Author(s):  
Dani Degenhardt ◽  
Allan J. Cessna ◽  
Renata Raina ◽  
Annemieke Farenhorst ◽  
Dan J. Pennock
Keyword(s):  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Water And Sediment ◽  
Acid Herbicides

Snowmelt transport of neonicotinoid insecticides to Canadian Prairie wetlands

2016 ◽  
Vol 215 ◽  
pp. 76-84 ◽  
Author(s):  
Anson R. Main ◽  
Nicole L. Michel ◽  
Michael C. Cavallaro ◽  
John V. Headley ◽  
Kerry M. Peru ◽  
...  
Keyword(s):  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Neonicotinoid Insecticides

Quality of deferred forage from waterfowl nesting sites on the Canadian prairies

1999 ◽  
Vol 79 (4) ◽  
pp. 485-490 ◽  
Author(s):  
Paul G. Jefferson ◽  
Les Wetter ◽  
Brent Wark
Keyword(s):  
Plant Species ◽  
Native Species ◽  
Forage Quality ◽  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Canadian Prairies ◽  
Medium Quality ◽  
Cutting Height

The nesting success of waterfowl can be increased by deferred use of perennial forage plant species adjacent to Canadian prairie wetlands for habitat cover. However, the maintenance of plant species diversity and biomass production requires periodic vegetation management such as biomass harvesting. The objective of this study was to determine the quality of forage harvested from these sites as affected by deferral period (years), cutting height, species type (tame vs. native) and province. Biomass was sampled at 16, 12 and 12 sites in Manitoba, Saskatchewan, and Alberta, respectively, representing a range from 2 to 4 yr of deferred use. Plant species were described and samples were clipped at 10 and 20 cm cutting height at 8 or 16 transect points per site in late July or early August 1994. Forage quality was determined as crude protein (CP), in vitro organic matter digestibility (IVOMD), acid detergent fibre (ADF), neutral detergent fibre (NDF), P and Ca content. Deferral period affected quality, but the response varied by province. For example, IVOMD was 90 g kg−1 higher at sites with longer deferred use in Saskatchewan, but was similar for Alberta and Manitoba sites. Harvesting at 20 cm height resulted in 24 g kg−1 greater IVOMD and 9 g kg−1 increased CP averaged across all three provinces. Forage from tame species sites exhibited 70 g kg−1 higher IVOMD, 49 g kg−1 greater CP, 0.3 g kg−1 more P and 4.6 g kg−1 more Ca content than that of native species sites in Alberta but there was no difference between vegetation types at sites in the other provinces. These forage sources will produce medium quality hay for beef cattle production. Deferring native species sites for 2 yr will produce highest biomass yields with the highest cellulosic content for potential bioethanol conversion. Key words: Conservation, biomass, forage quality, NDF, ADF, protein, cellulose, hemicellulose, P, Ca

Odonates as biological indicators of grazing effects on Canadian prairie wetlands

2005 ◽  
Vol 30 (3) ◽  
pp. 273-283 ◽  
Author(s):  
A. Lee Foote ◽  
Christine L. Rice Hornung
Keyword(s):  
Biological Indicators ◽  
Prairie Wetlands ◽  
Canadian Prairie ◽  
Grazing Effects

Pulling in Double Harness or Hauling a Double Load: Women, Work and Feminism on the Canadian Prairie

1986 ◽  
Vol 21 (3) ◽  
pp. 32-52 ◽  
Author(s):  
Veronica Strong-Boag
Keyword(s):  
Canadian Prairie

Unnamed Country: The Struggle for a Canadian Prairie Fiction by Dick Harrison

1978 ◽  
Vol 13 (3) ◽  
pp. 283-284
Author(s):  
Roy W. Meyer
Keyword(s):  
Canadian Prairie

scholarly journals Understanding Water Use Conflicts to Advance Collaborative Planning: Lessons Learned from Lake Diefenbaker, Canada

Water ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 1756
Author(s):  
Jania Chilima ◽  
Jill Blakley ◽  
Harry Diaz ◽  
Lalita Bharadwaj
Keyword(s):  
Water Use ◽  
Flood Control ◽  
Collaborative Planning ◽  
Lessons Learned ◽  
Canadian Prairie ◽  
Water Users ◽  
Management Procedures ◽  
Lake Diefenbaker ◽  
Regulatory Instruments ◽  
Water Uses

Conflicts around the multi-purpose water uses of Lake Diefenbaker (LD) in Saskatchewan, Canada need to be addressed to meet rapidly expanding water demands in the arid Canadian prairie region. This study explores these conflicts to advance collaborative planning as a means for improving the current water governance and management of this lake. Qualitative methodology that employed a wide participatory approach was used to collect focus group data from 92 individuals, who formed a community of water users. Results indicate that the community of water users is unified in wanting to maintain water quality and quantity, preserving the lake’s aesthetics, and reducing water source vulnerability. Results also show these users are faced with water resource conflicts resulting from lack of coherence of regulatory instruments in the current governance regime, and acceptable management procedures of both consumptive and contemporary water uses that are interlinked in seven areas of: irrigation, industrial, and recreational water uses; reservoir water level for flood control and hydroelectricity production; wastewater and lagoon management; fish farm operations; and regional water development projects. As a means of advancing collaborative planning, improvements in water allocation and regulatory instruments could be made to dissipate consumptive use conflicts and fill the under-regulation void that exists for contemporary water uses. Additionally, a comprehensive LD water use master plan, as a shared vision to improve participation in governance, could be developed to direct the water uses that have emerged over time. This study suggests that these three areas are practical starting conditions that would enable successful collaborative planning for the seven areas of water uses. Focusing on these three areas would ensure the current and future needs of the community of water users are met, while avoiding reactive ways of solving water problems in the LD region, especially as the water crisis in the Canadian Prairie region where LD is located is expected to intensify.

Response of field peas to phosphate fertilization

2003 ◽  
Vol 83 (2) ◽  
pp. 283-289 ◽  
Author(s):  
R. E. Karamanos ◽  
N. A. Flore ◽  
J. T. Harapiak
Keyword(s):  
Uniform Design ◽  
Monoammonium Phosphate ◽  
Canadian Prairie ◽  
Yield Increase ◽  
Seed Moisture ◽  
Field Peas ◽  
Triple Super Phosphate ◽  
Seed Placement ◽  
P Application ◽  
The Impact

Canadian Prairie Provinces in general, and Saskatchewan in particular are major producers of peas worldwide. Individual provincial criteria for P application are considerably different from each other. Further introduction of new pea varieties and the adoption of direct seeding practices prompted us to re-evaluate these criteria. To this end, two experiments with field peas (Pisum sativum L. var. Carneval) were carried out between 1994 and 1998 at nine different locations in Alberta. The first experiment was carried out in 1994 and consisted of three trials with six rates of P (0, 4.4, 8.7, 13, 17.5 and 21.8 kg P ha-1) in the form of monoammonium phosphate (MAP) (12-51-0). To eliminate the impact of varying N rates along with P, a series of 21 trials and a uniform design that included five rates of P (0, 6.5, 13, 19.5 and 26 kg ha-1) in the form of triple super phosphate (0-45-0) and two methods of placement (seed placement or side banding) were subsequently carried out. There was a significant response to P application at all 13 sites of both experiments that contained 10 or less mg of a Modified Kelowna (MK) extractable-P kg-1 of soil. Side banding resulted in significantly higher yield in only three trials. Maximum average yield increase of 645 kg seed ha-1 was obtained with application of 19.5 kg P ha-1; it was influenced by soil texture as the magnitude of response was greater on loamy (535 kg seed ha-1) than on clay loam soils (285 kg seed ha-1). There was no significant yield increase in the trials that contained greater than 10 mg MK-P kg-1 soil. Reduction in plant population was more frequent as a result of seed placement (nine cases with P < 0.1) than side banding in both experiments. The impact of P fertilization on seed moisture was not consistent. The ability to side band or to seed with an increased seed bed utilization may fulfil the need for application of greater rates of P than the ones currently recommended for prairie soils. Key words: Seed placement, side banding, triple super phosphate, monoammonium phosphate

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