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Showing 1 to 20 of 46 for “"prairie pothole"”.
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Vertebrated Richness of Waterfowl Production Areas in the Prairie Pothole Region of Minnesota
… within 4 physiographic regions in Minnesota: the Prairie Coteau, Sioux Drift Plain - Minnesota River Plain, Agassiz Lake Plain, and Border Prairie. Small mammals, amphibians, and reptiles were sampled using baited snap traps, pitfall traps, and funnel traps. Larger mammal presence was determined …
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Aquatic Plant Communities and Invertebrates in a Prairie Pothole During Duck Brood Rearing
… and associated invertebrates were collected in a prairie wetland. Sampling was done weekly throughout the duck brood rearing season. Linear regression revealed a 4 to 100 ratio of animal to plant biomass (R²=0.488). Comparatively high degrees of association were found between Ceratophyllum …
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Effects of P.L. 566 Stream Channelization on Wetlands in the Prairie Pothole Region
… that channelization influenced drainage of prairie wetlands, drainage rates in a channelized tributary were compared to rates in an unchannelized tributary of Wild Rice Creek. Channelization had a direct impact on wetlands by channel drainage reduction of overbank flows, and by providing …
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Winter Limnological Conditions in a PRAIRIE Pothole and the Application of Molecular Oxygen
The physical, chemical, and biological conditions in Round Lake, Oakwood Lakes State Park, South Dakota were monitored during the 1977-1978 winter, and reaeration utilizing molecular oxygen was evaluated as a practical method to prevent winterkill. Ice and snow conditions after 20 December, 1977 …
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Historical Genetic Analysis Of Horned Lark (Eremophila Alpestris) Specimens From The Prairie Pothole Region
<p>The Horned Lark (Eremphila alpestris) is a generalist bird species with a global distribution. A previous phylogeographic study of this species from western North America has been completed and identified three distinct mitochondrial DNA clades. This study aims to genetically characterize Horned …
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Impacts of Wetland Characteristics on Duck Use in the Prairie Pothole Region (PPR) 1987-2013
… Survey, has been conducted annually in the U.S. Prairie Pothole Region. The survey was designed to assess the influence of the Small Wetlands Acquisition Program on contributions to continental waterfowl populations (Cowardin et al. 1995). Each year cooperators visit sample wetlands during two …
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Spatiotemporal Patterns of Distribution and Drivers of Neonicotinoid Insecticide Fate in Canadian Prairie Pothole Wetlands
… interactions with wetlands in the Canadian Prairies. Between 2009 and 2012, neonicotinoid use as a seed treatment increased by 30% across the Canadian Prairies. During spring 2012 to spring 2013, I sampled water and sediment from 136 wetlands situated in a range of crop types across central …
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Changes in Wetland Conditions and Wetland Plant Communities in the Prairie Pothole Region After 50 Years
… plant communities within wetland zones in the Prairie Pothole Region. In 1961-1966, Robert E. Stewart and Harold A. Kantrud conducted a study to investigate the relationship of wetland plant communities to variations of water permanence and chemistry on three study areas: Crystal Springs, …
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Effects of land-use practice on wetland soil hydrology, salinity, and biogeochemistry in the prairie pothole region
… and pasture (PA) in two (site A and B) semi-arid prairie pothole region (PPR) wetland systems. In a microcosm experiment, GHG (CO2, CH4, and N2O) emissions and EEAs [β-glucosidase (BG), N-acetyl glucosaminidase (NAG), and alkaline phosphatase (AP)] were measured in intact soil cores (30-cm depth) …
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A Landscape Approach to Grassland Bird Conservation in the Prairie Pothole Region of the Northern Great Plains
Prairie is one of the most imperiled ecosystems, and grassland birds have experienced steeper and more consistent declines than any other group of birds in North America. Habitat-based planning tools are a cornerstone of conservation in forested ecosystems, but remain a novel approach in …
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A Landscape Approach to Grassland Bird Conservation in the Prairie Pothole Region of the Northern Great Plains
Prairie is one of the most imperiled ecosystems, and grassland birds have experienced steeper and more consistent declines than any other group of birds in North America. Habitat-based planning tools are a cornerstone of conservation in forested ecosystems, but remain a novel approach in …
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A Physiological Assessment of Wetland Habitats for Spring-migrating Ducks in the Agricultural Landscapes of the Southern Prairie Pothole Region
… of grassland and wetland ecosystems in the Prairie Pothole Region (PPR) has been a pervasive challenge for conservationists dating back to the early 1900s. The legacy of ever-increasing agricultural intensity in the southern portions of the PPR, including eastern South Dakota, has left many …
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Delineation of Surface Water Features Using RADARSAT-2 Imagery and a TOPAZ Masking Approach over the Prairie Pothole Region in Canada
The Prairie Pothole Region (PPR) is one of the most rapidly changing environments in the world. In the PPR of North America, topographic depressions are common, and they are an essential water storage element in the regional hydrological system. The accurate delineation of surface water bodies is …
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Faunal Diversity and Richness of Natural, Restored, Dam-Created, and Borrow-Pit Wetlands in the Prairie Pothole Region of Eastern South Dakota
… wetlands in the James River Lowland and Prairie Coteau physiographic regions of eastern South Dakota. Analysis of variance indicated differences among wetland types based on bird richness and diversity. In addition, engineering design criteria and environmental factors of each study …
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Assessing recharge and discharge across the prairie pothole landscape: application of spatial hydrological data and statistical analysis in a groundwater flow model
… The water budget of a wetland in the northern prairies is often an unequal balance between moisture input and output in which the permanence of a wetland depends on its groundwater budget. Identifying and quantifying groundwater recharge and discharge zones has applications in predicting the …
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Ground-Dwelling Arthropod Community Structure of Saskatchewan's Agroecosystems and Seeded Grasslands
… and function of agroecosystems in the Canadian prairie landscape. However, the distribution of many groups is often limited to non-crop habitats, such as roadside ditches or distantly spaced grassland refuges. The high prevalence of prairie pothole wetlands in this region may be working to …
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Invertebrate Egg and Plant Seed Banks in Natural, Restored, and Drained Wetlands in the Prairie Pothole Region (USA) and Potential Effects of Sedimentation On Recolonization of Hydrophytes and Aquatic Invertebrates
… and it poses unique threats to wetlands of the Prairie Pothole Region (PPR). Sediment may impact the success of wetland restorations because burial of invertebrate and plant propagules may impact hatching and germination success, and hence, may hamper successional changes throughout interannual …
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Nesting Chronology of South Dakota Ducks
… a much broader and more diverse area, the entire prairie pothole region.
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Multiple Linear Model Selection: A Data Study on the Ecological Controls on Methylmercury Production
… between 2006 to 2012 from wetlands in the prairie pothole region in Saskatchewan by members of the Department of Biology, University of Regina. My research goal was to use the Backward Elimination model selection to develop the best fitted linear regression model to test the impact of seven …
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Hydrologic Design of a Wetland Impoundment: Kingsbury County, SD.
… design project. The wetland will lie within the Prairie Pothole Region of the Upper Midwest. It is within this region that the presence of wetlands has been declining over recent decades. The wetland will provide habitat supportive of waterfowl which make bi-annual flights over the area during …
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