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Showing 1 to 19 of 19 for “"Prairie Wetlands"”.
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Transformation and fate of nitrate in northern prairie wetlands
<p>Recent initiatives in wetlands restoration offer a unique opportunity to utilize restored or constructed wetlands as nutrient sinks for non-point source pollution in regions of row-crop agriculture. The research presented here addressed the transformation and fate of nitrate in northern prairie …
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Recreational Use of Six Prairie Wetlands in Eastern South Dakota
… use survey was conducted at 6 public wetlands in eastern South Dakota from August 9, 1981 through August 8, 1982. Four hundred and fifty-eight postcard questionnaires were placed on vehicles encountered at these marshes during random time periods. Two hundred and thirty-five were …
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Effects of Phorate on Ducklings, Macroinvertebrates, and Microtox in Northern Prairie Wetlands
… studied in littoral mesocosms in South Dakota wetlands. In 1991 and 1992, four mesocosms were constructed in each of three wetlands. In each wetland, one mesocosm was a reference and phorate concentrations of 1.2, 2.4, and 4.8 kg/ha were applied to treatment mesocosms. The effects of phorate on …
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The effect of hydroperiod on seed banks in semi-permanent prairie wetlands
… in each of two slightly brackish,semi-permanent prairie wetlands (P1 and P4) with different hydroperiods. The main objective was to determine if hydroperiod affected seed pool characteristics. Additionally, 48 samples were collected in 1986 from wetland P1 to determine if seed bank composition …
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Small Mammals in Prairie Wetlands: Habitat Use and the Effects of Wetland Modifications
… types, small mammal habitat use patterns in prairie wetlands are poorly understood. The distribution of the mammal fauna of South Dakota is also not well known. Because of the lack of information in these areas, evaluation of the impacts of wetland modifications on the resident mammal …
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The potential role of seed banks in the restoration of drained prairie wetlands
… banks in restorations. Drained and undrained prairie wetlands in central Iowa, west central Minnesota, and central North Dakota provided a variety of sites distributed over a broad geographic area.</p>
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The Influence of Agricultural Chemicals on Aquatic Invertebrate Biodiversity and Genetic Diversity in Northern Prairie Wetlands
… spp.) were placed in constructed mesocosms in wetlands and in aquaria under laboratory conditions and were exposed to varying amounts of phorate. Invertebrates samples were genetically tested using cellulose acetate electrophoresis techniques. The FUM, PGM, IDH, MOH and GPI enzyme systems were …
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Interpretive Potential of South Dakota Wetlands
… was initiated to devise a method for selecting prairie wetlands on which nature interpretation areas could be established. An evaluation form was designed to systematically identify areas of good potential and 64 prairie wetlands were evaluated. Twenty-two percent of the evaluated marshes were …
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Assessing the Effects of Chronic Neonicotinoid Insecticide Exposure on Aquatic Insects using Multiple Experimental Approaches
… those with aquatic larval stages. Many Prairie wetlands are in regions of intensive agriculture and are directly at risk of neonicotinoid contamination and require special considerations to best protect these ecologically important areas. Under laboratory conditions, I compared the …
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Birds on Modified Wetlands in Eastern South Dakota
… of bird species (other than Anatidae) in the prairie wetlands ecosystem. Seven wetlands on Waterfowl Production Areas in eastern South Dakota were utilized to measure differences between bird communities in plots with dug brood complexes and non-modified plots. Thirty-eight species of wetland …
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Spatiotemporal Patterns of Distribution and Drivers of Neonicotinoid Insecticide Fate in Canadian Prairie Pothole Wetlands
… true of neonicotinoid 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 …
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Fathead Minnows, Aquatic Invertebrates, and Mallard Duckling Interactions in Man-Made Ponds
… potential to affect invertebrate populations in wetlands. Stocking minnows in formerly fishless wetlands may negetatively affect duckling growth and survival. In 1991, 5 pairs of ponds (cells) were used to test what effect minnows had on the invertebrate population and duckling growth. Fathead …
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Floral and Faunal Colonization of Restored Wetlands in West-Central Minnesota and Northeastern South Dakota
… to attain attributes comparable to natural wetlands. The objective of this study was to determine trends in species abundance and richness of waterfowl, aquatic macroinvertebrates, fish and hydrophytes in restored wetlands of differing ages since restoration. One hundred fifty-six seasonal …
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Effects of Introduced Muskrat Populations on Emergent Vegetation in South Dakota Wetland
… of regulating wetland vegetation. Reduction of prairie wetlands has the potential to influence muskrat dispersal patterns and consequently, to reduce the beneficial influences of muskrats on wetland habitats. The objective of this study was to evaluate the changes in seasonal wetlands emergent …
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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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Assessment of Wetland Mitigation in South Dakota
… among restored, created, enhanced and natural wetlands in eastern South Dakota. Almost 500 Section 404 permit applications were submitted in South Dakota from 1996 through 1999. All eligible applications were approved and nearly half of the permits issued included a provision for compensatory …
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Climatic Controls on the Porewater Chemistry of Mid-continental Wetlands
<p>Wetlands develop where climate and physiography conspire to maintain saturated soils at the land surface, support diverse plant and animal communities, and serve as globally important sinks for atmospheric carbon. The chemistry of wetland porewaters impacts near-surface biological communities …
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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
<p>Sediment is the major pollutant of wetlands, lakes, rivers, and estuaries in the United States 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 …
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Habitat Area Requirements of Prairie Wetland Birds in Eastern South Dakota
… on bird use of 830 semipermanent and seasonal wetlands (0.2-217.5 ha) was studied to evaluate vegetative needs and habitat area requirements of 20 breeding wetland bird species in eastern South Dakota in 1995-1996. Vegetative preferences of species varied, but most waterfowl and nongame species …