Long-Term Response of Northern Pintails to Changes in Wetlands and Agriculture in the Canadian Prairie Pothole Region

2002 ◽  
Vol 66 (4) ◽  
pp. 993 ◽  
Author(s):  
Kevin M. Podruzny ◽  
James H. Devries ◽  
Llwellyn M. Armstrong ◽  
Jay J. Rotella
Keyword(s):  
Prairie Pothole Region ◽  
Prairie Pothole ◽  
Canadian Prairie ◽  
Northern Pintails ◽  
Term Response

Importance of individual species of predators on nesting success of ducks in the Canadian Prairie Pothole Region

1989 ◽  
Vol 67 (2) ◽  
pp. 291-297 ◽  
Author(s):  
Douglas H. Johnson ◽  
Alan B. Sargeant ◽  
Raymond J. Greenwood
Keyword(s):  
Nest Predation ◽  
Prairie Pothole Region ◽  
Individual Species ◽  
Prairie Pothole ◽  
Canadian Prairie ◽  
Vegetation Growth ◽  
Striped Skunk ◽  
Franklin's Ground Squirrel ◽  
Predation Rates ◽  
Activity Indices

We followed 3094 upland nests of several species of ducks. Clutches in most nests were lost to predation. We related daily nest predation rates to indices of activity of eight egg-eating predators, precipitation during the nesting season, and measures of wetland conditions. Activity indices of red fox (Vulpes vulpes), striped skunk (Mephitis mephitis), and raccoon (Procyon lotor) activity were positively correlated, as were activity indices of coyote (Canis latrans), Franklin's ground squirrel (Spermophilus franklinii), and black-billed magpie (Pica pica). Indices of fox and coyote activity were strongly negatively correlated (r = −0.51), as were those of badger (Taxidea taxus) and skunk (r = −0.46). Nest predation rates in the early part of the breeding season were positively related to indices of fox, American crow (Corvus brachyrhynchos), and badger activity. Predation rates in the latter part of the season were positively related to indices of fox and skunk activity. Predation rates on early-season nests were lower in areas and years in which larger fractions of seasonal wetlands contained water. For late-season nests, a similar relationship held involving semipermanent wetlands. We suspect that the wetland measures, which reflect precipitation during some previous period, also indicate vegetation growth and the abundance of buffer prey, factors that may influence nest predation rates.

scholarly journals Long-term changes in pond permanence, size, and salinity in Prairie Pothole Region wetlands: The role of groundwater-pond interaction

2018 ◽  
Vol 17 ◽  
pp. 1-23 ◽  
Author(s):  
James W. LaBaugh ◽  
Donald O. Rosenberry ◽  
David M. Mushet ◽  
Brian P. Neff ◽  
Richard D. Nelson ◽  
...  
Keyword(s):  
Prairie Pothole Region ◽  
Prairie Pothole ◽  
Long Term Changes

scholarly journals Hydrologic Lag Effects on Wetland Greenhouse Gas Fluxes

Atmosphere ◽  
2019 ◽  
Vol 10 (5) ◽  
pp. 269 ◽  
Author(s):  
Brian A. Tangen ◽  
Sheel Bansal
Keyword(s):  
Greenhouse Gas ◽  
Prairie Pothole Region ◽  
Water Levels ◽  
Prairie Pothole ◽  
Current Event ◽  
Seasonal Wetlands ◽  
Lag Effects ◽  
Gas Fluxes ◽  
Flux Measurements

Hydrologic margins of wetlands are narrow, transient zones between inundated and dry areas. As water levels fluctuate, the dynamic hydrology at margins may impact wetland greenhouse gas (GHG) fluxes that are sensitive to soil saturation. The Prairie Pothole Region of North America consists of millions of seasonally-ponded wetlands that are ideal for studying hydrologic transition states. Using a long-term GHG database with biweekly flux measurements from 88 seasonal wetlands, we categorized each sample event into wet to wet (W→W), dry to wet (D→W), dry to dry (D→D), or wet to dry (W→D) hydrologic states based on the presence or absence of ponded water from the previous and current event. Fluxes of methane were 5-times lower in the D→W compared to W→W states, indicating a lag ‘ramp-up’ period following ponding. Nitrous oxide fluxes were highest in the W→D state and accounted for 20% of total emissions despite accounting for only 5.2% of wetland surface area during the growing season. Fluxes of carbon dioxide were unaffected by transitions, indicating a rapid acclimation to current conditions by respiring organisms. Results of this study highlight how seasonal drying and re-wetting impact GHGs and demonstrate the importance of hydrologic transitions on total wetland GHG balance.

scholarly journals Long-term spatial heterogeneity in mallard distribution in the Prairie pothole region

2017 ◽  
Vol 41 (1) ◽  
pp. 116-124 ◽  
Author(s):  
Adam K. Janke ◽  
Michael J. Anteau ◽  
Joshua D. Stafford
Keyword(s):  
Spatial Heterogeneity ◽  
Prairie Pothole Region ◽  
Prairie Pothole

Predicting wetland contamination from atmospheric deposition measurements of pesticides in the Canadian Prairie Pothole region

2011 ◽  
Vol 45 (39) ◽  
pp. 7227-7234 ◽  
Author(s):  
Paul G. Messing ◽  
Annemieke Farenhorst ◽  
Don T. Waite ◽  
D.A. Ross McQueen ◽  
James F. Sproull ◽  
...  
Keyword(s):  
Atmospheric Deposition ◽  
Prairie Pothole Region ◽  
Prairie Pothole ◽  
Canadian Prairie

scholarly journals Assessing the Importance of Potholes in the Canadian Prairie Region under Future Climate Change Scenarios

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1657 ◽  
Author(s):  
Ameer Muhammad ◽  
Grey Evenson ◽  
Tricia Stadnyk ◽  
Alaba Boluwade ◽  
Sanjeev Jha ◽  
...  
Keyword(s):  
Climate Change ◽  
Assessment Tool ◽  
Prairie Pothole Region ◽  
Swat Model ◽  
Future Climate Change ◽  
Climate Change Scenarios ◽  
Isolated Wetlands ◽  
Prairie Pothole ◽  
Canadian Prairie ◽  
Study Region

The Prairie Pothole Region (PPR) of Canada contains millions of small isolated wetlands and is unique to North America. The goods and services of these isolated wetlands are highly sensitive to variations in precipitation and temperature. We evaluated the flood proofing of isolated wetlands (pothole wetlands) under various climate change scenarios in the Upper Assiniboine River Basin (UARB) at Kamsack, a headwater catchment of the Lake of the Prairies in the Canadian portion of the PPR. A modified version of the Soil Water Assessment Tool (SWAT) model was utilized to simulate projected streamflow under the potential impacts of climate change, along with changes to the distribution of pothole wetlands. Significant increases in winter streamflow (~200%) and decreases (~11%) in summer flow, driven by changes in future climates, were simulated. Simulated changes in streamflow resulting from pothole removal were between 55% for winter and 15% for summer, suggesting that climate will be the primary driver in the future hydrologic regime of the study region. This research serves as an important guide to the various stakeholder organizations involved in quantifying the aggregate impacts of pothole wetlands in the hydrology of the Canadian Prairie Region.

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