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Showing 1 to 20 of 163 for “"Duck"”.

  1. The Pathogenicity of Duck Hepatitis Virus for Duck Cell Cultures, Chickenembryos and Ducklings

    Fitzgerald, James EdwardUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-09T22:30:04Z (GMT). No. of bitstreams: 1 6500814.pdf: 4014156 bytes, checksum: 79fedf95640242ddf87f56b7c98729e1 (MD5) Previous issue date: 1964

    uiuc Repository record

  2. Thermoregulation of the White Pekin Duck, Anas Platyrhynchos

    Hagan, Ann ArthurUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-14T13:39:37Z (GMT). No. of bitstreams: 1 7616138.pdf: 4042355 bytes, checksum: 60cdd0a1c190965806b0afef6e9e2d06 (MD5) Previous issue date: 1976

    uiuc Repository record

  3. Wordplay in Donald Duck comics and their Finnish translations

    Koponen, MaaritHelsingfors universitet2004

    helsinki Repository record

  4. The Role of Climate Variability in Duck Population Ecology

    Messmer, David 1984-University of Saskatchewan2019

    … sizes. I used congruent long-term data for duck populations, individuals, and climatic variables to test hypotheses about the relative roles of climate and other factors in population dynamics, variation in vital rates, and timing of breeding. Where possible I used interspecific comparisons …

    sask Repository record

  5. Immunologic Studies on Duck Embryo Propagated Newcastle Disease Virus

    Millen, Theodore WierUniversity of Illinois at Urbana-Champaign1949

    uiuc Repository record

  6. Nesting Ecology of the Redhead Duck on Knudson Marsh, Utah

    Michot, Thomas Claud

    utahstate Repository record

  7. Evaluation of Duck Production On Waterfowl Production Areas in Northeast North Dakota

    Heismeyer, Gerald L.

    An investigation of duck production on six Waterfowl Production Areas (WPA’s) in northeastern North Dakota was conducted during 1970-73. This investigation was conducted in conjunction with habitat-manipulation study by the Northern Prairie Wildlife Research Center that entailed prescribed burning …

    sdstate Repository record

  8. SuperLoad Crossing of Millard Avenue Bridges Over Duck Creek and CSX Railroad

    Hammada, Ahmmed A.University of Toledo2012

    … the Millard Avenue Bridges which span over Duck Creek and the CSX railroad. These bridges are located in Toledo and Oregon, Ohio, on the route from the Port of Toledo to a nearby oil refinery. The bridge over Duck Creek is a three span straight slab-on- steel girder bridge and the CSX is a …

    ohiolink Repository record

  9. An epidemiologic approach to free-ranging wood duck (Aix sponsa) health assessment

    Winter, John MarkUniversity of Illinois Urbana-Champaign2025

    Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms

    uiuc Repository record

  10. Aquatic Plant Communities and Invertebrates in a Prairie Pothole During Duck Brood Rearing

    McCrady, Jeffrey W.

    … 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 demersum and Gastropoda and between Lemna minor and most …

    sdstate Repository record

  11. Wood Duck Use and Nesting Success in Artificial Nesting Structures in Eastern South Dakota

    Sausville, Lisa Peskin

    Wood duck (Aix sponsa) nest boxes in eastern South Dakota were examined for use by wood ducks and competing species in 1991 (n=506) and 1992 (n=669). Nest box composition in 1991 was: 331 plastic double-walled (POW), 11 plastic single-walled (PSW), and 154 wooden nesting structures; in 1992, 382 of …

    sdstate Repository record

  12. Chemical Treatment of Monodominant Cattail Stands In Semipermanent Wetlands: Duck, Invertebrate, and Vegetation Response

    Solberg, Kent Loren

    … the response of breeding and overwater nesting ducks and aquatic invertebrates to the chemical treatments were studied in northeastern South Dakota. Four wetlands were treated with glyphosate in 1985 by fixed-wing aircraft and were compared to cattail-dominated wetlands and wetlands with a …

    sdstate Repository record

  13. Breeding Ecology and Productivity of Mallards and Mallard-grey Duck Hybrids in New Zealand

    Sheppard, JenniferResearchSpace@Auckland2017

    … between mallards and the native grey duck (A. superciliosa) has been extensive, and today, mallards and mallard-grey duck hybrids (hereafter mallards) are the predominant game bird in NZ. Perceived declines in mallard abundance in some regions have prompted NZ Fish and Game Council to …

    auckland-ms Repository record

  14. Impacts of Wetland Characteristics on Duck Use in the Prairie Pothole Region (PPR) 1987-2013

    Oslund, Fred Thomas2016

    … the influence of local and landscape factors on duck pair densities. Local factors are attributes immediately adjacent to, or within, an individual wetland that affect wetland appearance or function. Landscape factors represent wetland functions within varying compositions of upland cover types …

    sdstate Repository record

  15. An Assessment of Wood Duck Distribution, Abundance and Riparian Breeding Pair Habitats in South Dakota

    Coughlin, Paul F.

    … managers are working to reverse this trend. One duck species that has historically responded well to harvest and habitat management is the wood duck (Aix sponsa). Wood ducks were nearly exterminated in the early 1900's as a result of unregulated harvest and habitat destruction. Since passage of …

    sdstate Repository record

  16. Analysis of water quality problems in the VPI & SU Duck Ponds and suggested management alternatives

    Woodside, Michael D.Virginia Polytechnic Institute and State University1988

    … major tributaries entering the shallow VPI&SU Duck Ponds. Autochthonous nutrients were monitored for a period of ten months. During these storms, the stormwater runoff contributed large amounts of organic matter and fertilizer nutrients that settled in the ponds and during anoxic conditions, …

    vt Repository record

  17. Wood Duck Brood Movements, Habitat Use, and Survival Rates on Two Prairie Rivers in South Dakota

    Granfors, Diane A.

    Wood ducks, have recently expanded their breeding range throughout South Dakota. Brood ecology may differ from traditional breeding areas, and between areas within South Dakota, due to difference in landscape. Wood duck brood movements, habitat use, and survival were studied by radio-marking hens …

    sdstate Repository record

  18. Some Effects of 'Hypophysectomy' of White Pekin Duck Embryos and Replacement Therapy With Pregnant Mares' Serum

    Johnson, Norma JeanUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-10T18:13:31Z (GMT). No. of bitstreams: 1 6706638.pdf: 4852220 bytes, checksum: 7ed21ae03d36901d0ca2027b06c29eaa (MD5) Previous issue date: 1966

    uiuc Repository record

  19. LIKE A DUCK ON WATER: CHINESE ACADEMIC MIGRANTS IN THE U.S. AND THEIR SUBURBAN WEEKEND CHINESE SCHOOL

    Xu, Jianping

    <p>Current literature is scarce on the diverse experiences of hundreds of thousands of mainland Chinese who, since 1979, have come to the U.S. primarily for graduate study and mostly settled here afterwards in dispersed university or corporate jobs and suburban residences. After the Immigration Act …

    syracuse-diss Repository record

  20. Effects of Two Haying Provisions on Duck Nesting in Conservation Reserve Program (CRP) Fields in South Dakota

    Luttschwager, Kent A.

    Duck nesting in Conservation Reserve Program (CRP) fields was evaluated in 1989 and 1990 to determine the post year effects of emergency haying. Due to severe drought some CRP fields were released in 1988 for emergency haying with the provision that 10% be left in idled strips and some fields were …

    sdstate Repository record

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