Other Environmental Sciences Commons^™

Prairie Dog Population Growth: Relationships To Population Density, Habitat, And Livestock Grazing Management, Kelly A. Cable

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Effects Of Sediment Addition On The Drift Of Aquatic Macroinvertebrates In Nine Mile Creek, Nebraska, Laurence Angle

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Use Of Climatic Data To Identify Potential Sites In The United States For Growing Papaver Bracteatum As A Pharmaceutical Crop, R.E. Neild

School of Natural Resources: Faculty Publications

A procedure utilizing maps in the National Climatic Atlas was used to survey the United States to find areas for domesticating Papaver bracteatum, a wild poppy from the Trans-Causasus. This poppy had unique properties which make it a possible heroinless source of codeine. Climatic conditions similar to the native habitat and requirements of Papaver bracteatum can be found in areas of western Utah, northern Nevada, southern Idaho, eastern Washington and Oregon, northeastern California and southwestern Wyoming. A detailed climatic analysis was made to evaluate more specific locations within this large area. A site near Medford, Oregon was selected as best …

A Test Of Habitat Evaluation Models Using Avian Densities, Jeremy B. Cable

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

A Climatology Of Mean Monthly Snowfall For The Conterminous United States: Temporal And Spatial Patterns, John A. Harrington Jr., Randall S. Cerveny, Kenneth F. Dewey

School of Natural Resources: Faculty Publications

Mean monthly snowfall data for 216 stations across the conterminous United States were analyzed to produce a climatology that identifies statistical, spatial and intraseasonal aspects. Geographic variations in the length of the snowfall season are characterized using two statistics: the number of months of snow and the Snow Concentration Index (SCI).

The Annual distribution of mean monthly snowfall is also examined using harmonic analysis. Snowfall across the conterminous United States generally peaks in February; earlier snowfall maxima are found in the Great Lakes area and in the Pacific Northwest, whereas late February or March maxima occur in the western High …

Satellite-Derived Maps Of Snow Cover Frequency For The Northern Hemisphere, Kenneth F. Dewey

School of Natural Resources: Faculty Publications

A satellite imagery-based Northern Hemisphere snow cover data archive was mapped for the period 1966-84: The maps were digitized in order to create the first hemispheric, spatially data-continuous climatologies of snow cover. Annual and monthly climatologies were created and compared to several standard or frequently referenced climatologies. Results of this analysis indicate that the satellite-based climatology provides a much more detailed climatology for the higher latitude and highland regions of the Northern Hemisphere. The satellite imagery-based maps, when compared to the historical snow cover climatologies, indicated more extensive high-latitude snow cover concurrent with a northward shift in the southern extent …

A Preliminary Investigation Of A Relationship Between South American Snow Cover And The Southern Oscillation, Randall S. Cerveny, Brent R. Skeeter, Kenneth F. Dewey

School of Natural Resources: Faculty Publications

A ten-year (1974-83) satellite record of snow cover is compared to a standard index of the Southern Oscillation. South American snow cover area during the May-October snow season is found to be correlated significantly with the winter SOI values of the same year. The relationship is inverse; periods of low SOI values are associated with extensive South American snow cover while periods of high SOI values occur during years of diminished snow cover. The movements of the Pacific anticyclone and the midlatitude westerlies and subsequent changes in precipitation and temperature patterns are discussed in an analysis of this relationship.

Windbreaks And Crop Production, James R. Brandle

School of Natural Resources: Faculty Publications

No abstract provided.

Paleogeomorphic Significance Of Two Paleosols In The Dakota Formation (Cretaceous), Southeastern Nebraska, R. M. Joeckel

School of Natural Resources: Faculty Publications

No abstract provided.

Effect Of Pre-Burn Artificial Litter And Prescribed Burning On Smooth Brome (Bromus Inermis Leyss), Patricia R. Boehner

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Publications For The Center For Agricultural Meteorology And Climatology 1976-1986 (Camac Special Report 86-1), B. L. Blad, K. G. Hubbard, R. E. Neild, N. J. Rosenberg, S. B. Verma, A. Weiss, D. A. Wilhite, M. H. Glantz, J. M. Norman, L. Hahn, D. C. Rundquist

School of Natural Resources: Faculty Publications

No abstract provided.

Improving Nebraska's Near-Real Time Weather-Based Products Through User Interaction, Steven J. Meyer

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

The Population Biology Of Oak Middle Creek Structure 58-B After An Experimental Stocking With Adult Fish: A Three Year Evaluation, Donn A. Rodekohr

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Environmental And Physiological Effects On Water Use Of Cereal Crops, Joon Kim

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Interspecific Interactions Of Green Sunfish (Lepomis Cyanellus) And (Creek Chub (Semotilus Atromaculatus) In Small Streams In Southeast Nebraska, Steve L. Schleiger

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Characterizing Corn Hybrid Moisture Stress Sensitivity Using Canopy Temperature Measurements, B. L. Blad

School of Natural Resources: Faculty Publications

No abstract provided.

Respiratory Release Of Co2 In Alfalfa And Soybean Under Field Conditions, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.

Ectoparasitism As A Cost Of Coloniality In Cliff Swallows (Hirundo Pyrrhonota), Charles R. Brown, Mary Bomberger Brown

School of Natural Resources: Faculty Publications

Colonially nesting Cliff Swallows (Passeriformes: Hirundo pyrrhonota) in southwestern
Nebraska, USA, are commonly parasitized by hematophagous swallow bugs (Hemiptera: Cimicidae:
Oeciacus vicarius) and fleas (Siphonaptera: Ceratophyllidae: Ceratophyllus celsus). We examined to
what degree these ectoparasites represent a cost of coloniality for Cliff Swallows. The number of
swallow bugs per nest increased significantly with Cliff Swallow colony size. Body mass of nestling
swallows at 10 d of age declined significantly as the number of bugs per nestling increased. By fumigating
half of the nests in some colonies, killing the bugs, and leaving half of the nests as nonfumigated …

Development Of Oriented Lakes In The Eastern Rainbasin Region Of South Central Nebraska, James P. Krueger

School of Natural Resources: Dissertations, Theses, and Student Research

The Eastern Rainbasin region is located on a relatively flat-lying, loess-covered plain. The gently sloping land surface is poorly drained and in places local drainage is toward basins which lack external drainage. In the spring, excell precipitation collects in these basins, forming small lakes and marshes. It is these ephemeral lakes that give the region its name.

Aerodynamic Characteristics Of Grain Sorghum, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.

Thiram And Methiocarb As Deer Mouse Repellents And Agents For Conditioned Aversion, Bobbi A. Holm

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Changes In Photosynthesis Rate In Pinus Sylvestris L. And Pinus Banksiana Lamb Seedlings Subjected To Drought Stress, George A. Riggs Jr.

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Contrasts Among Bidirectional Reflectance Of Leaves, Canopies, And Soils, Elizabeth A. Walter-Shea

School of Natural Resources: Faculty Publications

No abstract provided.

Microclimate-Plant Architectural Interactions: Influence Of Leaf Width On The Mass And Energy Exchange Of A Soybean Canopy, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.

Manual: Measurement Of Evapotranspiration By The Bowen Ratio Energy Balance Method, Joon Kim, Shashi Verma

School of Natural Resources: Faculty Publications

The Bowen ratio energy balance method has been widely used by many researchers to estimate the fluxes of water vapor and sensible heat between crops and atmosphere. The energy balance for the crop canopy can be expressed as Rn + G + H + LE + PS + M = 0 (1) where Rn is net radiation, G is soil surface heat flux, H is sensible heat flux and LE is latent heat flux.

Small Mammal Populations And Rodent Damage In Nebraska No-Tillage Crop Fields, Kent E. Holm

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

House Mouse Populations And Their Damage To Common Building Insulations, Daryl D. Fisher

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

A Study Of The Crayfish Orconectes Immunis In An Intermittent Nebraska Stream, John J. Shadle

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Effects Of The Plains Pocket Gopher (Geomys Bursarius) On Hay Meadows And Irrigated Alfalfa In The Nebraska Sandhills, Patrick J. Hegarty

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Vital Characteristics Of The Black-Tailed Jack Rabbit In East-Central Nebraska, Rockford G. Plettner

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.