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Natural Resources and Conservation

University of Nebraska - Lincoln

School of Natural Resources: Faculty Publications

1994

Articles 1 - 8 of 8

Full-Text Articles in Physical Sciences and Mathematics

Bird Excluding Technique, Ron J. Johnson Mar 1994

Bird Excluding Technique, Ron J. Johnson

School of Natural Resources: Faculty Publications

To provide access to a bird feeder to desirable species while excluding House Sparrows (Passer domesticus), a loop is mounted above the feeder and extends outwardly a few inches. The excluder is fastened to the bird feeder by staples or adhesives.

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Family Odontophoridae (New World Quails), John P. Carroll Jan 1994

Family Odontophoridae (New World Quails), John P. Carroll

School of Natural Resources: Faculty Publications

Class AVES

Order GALLIFORMES

Suborder PHASIANI

Family ODONTOPHORIDAE

(NEW WORLD QUAILS)

  • Fairly small terrestrial birds with compact body, strong legs, and short wings.
  • 17-37 cm
  • Neotropical and Nearctic Regions
  • Tropical, subtropical and temperate forests, forest edge, savanna and agricultural land, from sea-level to 3300 m.
  • 9 genera, 32 species, 139 taxa.
  • 2 species threatened; none extinct since 1600.

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Semi-Annual Progress Report Fo The Period Of May 1, 1994 To October 31, 1994 (Hpcc Report 94-6), Kenneth G. Hubbard, Steven J. Meyer, David E. Stooksbury Jan 1994

Semi-Annual Progress Report Fo The Period Of May 1, 1994 To October 31, 1994 (Hpcc Report 94-6), Kenneth G. Hubbard, Steven J. Meyer, David E. Stooksbury

School of Natural Resources: Faculty Publications

No abstract provided.

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Virgilian (Upper Pennsylvanian) Paleosols In The Upper Lawrence Formation (Douglas Group) And In The Snyderville Shale Member (Shawnee Group, Oread Formation) Of The Northern Midcontinent, U.S.A., R. M. Joeckel Jan 1994

Virgilian (Upper Pennsylvanian) Paleosols In The Upper Lawrence Formation (Douglas Group) And In The Snyderville Shale Member (Shawnee Group, Oread Formation) Of The Northern Midcontinent, U.S.A., R. M. Joeckel

School of Natural Resources: Faculty Publications

No abstract provided.

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Low-Frequency Oscillations In Radiative-Convective Systems, Part Ii: An Idealized Model, Qi Hu, David A. Randall Jan 1994

Low-Frequency Oscillations In Radiative-Convective Systems, Part Ii: An Idealized Model, Qi Hu, David A. Randall

School of Natural Resources: Faculty Publications

No abstract provided.

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Size Distribution And Scattering Phase Function Of Aerosol Particles Retrieved From Sky Brightness Measurements, Y. J. Kaufman, A. A. Gitelson, A. Karnieli, E. Ganor, R. S. Fraser, T. Nakajima, S. Mattoo, B. N. Holben Jan 1994

Size Distribution And Scattering Phase Function Of Aerosol Particles Retrieved From Sky Brightness Measurements, Y. J. Kaufman, A. A. Gitelson, A. Karnieli, E. Ganor, R. S. Fraser, T. Nakajima, S. Mattoo, B. N. Holben

School of Natural Resources: Faculty Publications

Ground-based measurements of the solar transmission and sky radiance in a horizontal plane through the Sun are taken in several geographical regions and aerosol types: dust in a desert transition zone in Israel, sulfate particles in Eastern and Western Europe, tropical aerosol in Brazil, and mixed continental/maritime aerosol in California. Stratospheric aerosol was introduced after the eruption of Mount Pinatubo in June 1991. Therefore measurements taken before the eruption are used to analyze the properties of tropospheric aerosol; measurements from 1992 are also used to detect the particle size and concentration of stratospheric aerosol. The measurements are used to retrieve …

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Sprinkler Irrigaton: A Voc Remediation Alternative, Roy F. Spalding, Mark E. Burbach, Mary Exner Spalding, Leyla Parra-Vicary, Dennis R. Alexander Jan 1994

Sprinkler Irrigaton: A Voc Remediation Alternative, Roy F. Spalding, Mark E. Burbach, Mary Exner Spalding, Leyla Parra-Vicary, Dennis R. Alexander

School of Natural Resources: Faculty Publications

A sprinkler irrigation system was tested to assess its efficacy for volatilizing organic chemicals in pumped ground water. In field tests involving the analysis of more than 250 samples collected from beneath a spray irrigation system, removal rates of ethylene dibromide (EDB), 1,1,2-trichloroethylene (TCE), 1,1,1-trichloroethane (TCA), and carbon tetrachloride (CT) in samplers placed 0.5 m above the ground exceeded 95% in the vast majority of cases, and approached 100% for the more volatile chemicals. As predicted by Henry’s Law, CT, TCA, and TCE were significantly more volatile than EDB. Removal efficiencies of conventionally designed sprinkler irrigation systems were enhanced by …

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Windbreaks For Livestock Operations, Vernon Quam, Ladon Johnson, Bruce Wight, James R. Brandle Jan 1994

Windbreaks For Livestock Operations, Vernon Quam, Ladon Johnson, Bruce Wight, James R. Brandle

School of Natural Resources: Faculty Publications

Windbreaks play an important role in the protection of livestock, particularly in young animals and in areas with cold northerly winds during the winter and early spring. Properly placed windbreaks can provide benefits to feedlots, livestock pastures, and calving areas. Reducing wind speed in winter lowers animal stress, improves animal health, and increases feeding efficiency. Livestock windbreaks provide significant amounts of wildlife habitat, protect the working environment in and around the livestock area, and screen noise and odors associated with livestock operations.

Specific needs of animals dictate that special attention be given to access, snow storage, and drainage when planning …

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