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Articles 2671 - 2700 of 2761

Full-Text Articles in Other Environmental Sciences

Improving Nebraska's Near-Real Time Weather-Based Products Through User Interaction, Steven J. Meyer Jul 1986

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 Jun 1986

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 Mar 1986

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 Mar 1986

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 Jan 1986

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 Jan 1986

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 Jan 1986

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 Jan 1986

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 Jan 1986

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 Dec 1985

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. May 1985

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 Jan 1985

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 Jan 1985

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 Jan 1985

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 Dec 1984

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 Dec 1984

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 Dec 1984

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 May 1984

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 May 1984

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.


Selection Criteria For Drought Resistance, James R. Brandle Jan 1984

Selection Criteria For Drought Resistance, James R. Brandle

School of Natural Resources: Faculty Publications

No abstract provided.


Partitioning Solar Radiation Into Direct And Diffuse, Visible And Near-Infrared Components, A. Weiss Jan 1984

Partitioning Solar Radiation Into Direct And Diffuse, Visible And Near-Infrared Components, A. Weiss

School of Natural Resources: Faculty Publications

No abstract provided.


Kolmogorov Constants For Co2, Wind Velocity, Air Temperature, And Humidity Fluctuations Over A Crop Surface, S. B. Verma Jan 1984

Kolmogorov Constants For Co2, Wind Velocity, Air Temperature, And Humidity Fluctuations Over A Crop Surface, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.


Methiocarb And Thiram As Thirteen-Lined Ground Squirrel Repellents In Newly Planted Corn, Ann E. Koehler Aug 1983

Methiocarb And Thiram As Thirteen-Lined Ground Squirrel Repellents In Newly Planted Corn, Ann E. Koehler

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

No abstract provided.


Climate Model For Winter Wheat Yield Simulation, Kenneth G. Hubbard, R.J. Hanks Feb 1983

Climate Model For Winter Wheat Yield Simulation, Kenneth G. Hubbard, R.J. Hanks

School of Natural Resources: Faculty Publications

Winter wheat yields were simlulated by a model requiring climatic data as input for estimating crop evapotranspiration and phenological development. An assumed relationship between the winter wheat yields and the amount and timing of crop water use was optimized to simulate yields for two case studies: a single season, irrigated wheat study, and a multi-year, dryland wheat study. The model explained more than 90% of the variance of wheat yields in the irrigated study where total irrigation amounts varied between 0 and 55 cm. About 40% of the variance was explained for annual yields from a 21-year, dryland winter wheat …


Spatial And Temporal Variations In Long-Term Normal Percent Possible Solar Radiation Levels In The United States, Robert C. Balling, Randall S. Cerveny Jan 1983

Spatial And Temporal Variations In Long-Term Normal Percent Possible Solar Radiation Levels In The United States, Robert C. Balling, Randall S. Cerveny

School of Natural Resources: Faculty Publications

The purpose of this study was to analyze the time and space variations in long-term monthly-averaged daily percent possible solar radiation levels in the United States. Both principal components analysis and harmonic analysis were used to identify the influences of various synoptic-scale climatological phenomena on solar radiation receipt. Generally, an annual cycle was found with maximum percent possible radiation levels occurring in July. In many regions the temporal variance structure deviated from this general annual cycle. The results, which are useful in both theoretical and practical studies, lead to a better understanding of the climatology of solar radiation in the …


Bird Dispersal Recordings: An Overview, Robert H. Schmidt, Ron J. Johnson Jan 1983

Bird Dispersal Recordings: An Overview, Robert H. Schmidt, Ron J. Johnson

School of Natural Resources: Faculty Publications

Copyright® 1983 by ASTM International. Used by permission.


Turbulent Exchange Of Carbon Dioxide, Water Vapor, Heat And Momentum Over Crop Surfaces, Dean E. Anderson Jan 1983

Turbulent Exchange Of Carbon Dioxide, Water Vapor, Heat And Momentum Over Crop Surfaces, Dean E. Anderson

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

No abstract provided.


Variation Of Whole Body Components As An Indicator Of Habitat Quality In Geomys Bursarius And Peromyscus Maniculatus, Joseph W. Nietfeldt Dec 1982

Variation Of Whole Body Components As An Indicator Of Habitat Quality In Geomys Bursarius And Peromyscus Maniculatus, Joseph W. Nietfeldt

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

No abstract provided.


Mass And Energy Exchanges Of Soybeans: Microclimate–Plant Architectural Interactions, Dennis D. Baldocchi Nov 1982

Mass And Energy Exchanges Of Soybeans: Microclimate–Plant Architectural Interactions, Dennis D. Baldocchi

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

No abstract provided.


Influence Of Windbreak-Shelter On Soybean Growth Canopy Structure, And Light Relations, S.N. Ogbuehi, James R. Brandle Jan 1982

Influence Of Windbreak-Shelter On Soybean Growth Canopy Structure, And Light Relations, S.N. Ogbuehi, James R. Brandle

School of Natural Resources: Faculty Publications

No abstract provided.