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University of Nebraska - Lincoln

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Articles 1351 - 1380 of 1647

Full-Text Articles in Water Resource Management

Drought-Induced Shift Of A Forest–Woodland Ecotone: Rapid Landscape Response To Climate Variation, Craig Allen, David D. Breshears Jan 1998

Drought-Induced Shift Of A Forest–Woodland Ecotone: Rapid Landscape Response To Climate Variation, Craig Allen, David D. Breshears

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

In coming decades, global climate changes are expected to produce large shifts in vegetation distributions at unprecedented rates. These shifts are expected to be most rapid and extreme at ecotones, the boundaries between ecosystems, particularly those in semiarid landscapes. However, current models do not adequately provide for such rapid effects—particularly those caused by mortality—largely because of the lack of data from field studies. Here we report the most rapid landscape-scale shift of a woody ecotone ever documented: in northern New Mexico in the 1950s, the ecotone between semiarid ponderosa pine forest and pinon– juniper woodland shifted extensively (2 km or …

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1998 Platte River Basin Ecosystem Symposium Proceedings Jan 1998

1998 Platte River Basin Ecosystem Symposium Proceedings

Water Current Newsletter

No abstract provided.

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Water Current, Volume 29, No. 6, December 1997 Dec 1997

Water Current, Volume 29, No. 6, December 1997

Water Current Newsletter

New Equipment Enhances Water Sciences Laboratory's Research Capabilities
From the Director: USGS/NIWR Cooperation, Joint Programming Increasing; NRI Budget Reductions
27th Water Conference Begins Three-Year Look at "Nebraska Water 2000"
Annual Seminar to Examine Interrelationship of Water, Native Grasslands and Wetlands
Pesticide Container Recycling Hits Six Year Peak
Audubon Launches State Office
Environmental Decision Making Conference
MidAmerica GIS Symposium Comes to Cornhusker Hotel in May
Symposium Proceedings Available from Great Plains Foundation
Water News Briefs
Tips on Water Conservation
Useful Resources
Source Water Protection Conference Coming to Dallas in April
UNL Faculty Bring Home ASAE Educational Blue Ribbons

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Water Current, Volume 29, No. 5, October 1997 Oct 1997

Water Current, Volume 29, No. 5, October 1997

Water Current Newsletter

More Than 100 Tour Western Colorado Irrigation Projects
From the Director: New School Formed; Festival of Color; Husker Harvest Days; Wetlands Faculty
Water Rights Implications of the Platte River Memorandum of Agreement
Corridor Alliance Bringing People Together to Preserve Platte River
Nebraska Water 2000 to Convene in Kearney
NWRA/NSIA Join Joint Conference in Grand Island
Fourteen Presentations Planned for 1998 Water Resources Seminar Series
Water News Briefs
Extension Conference to Minnesota's North Woods
78,000 Groundwater Documents Available
Foundation Staff Help with Urban Water Festival in Washington D.C.

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Water Current, Volume 29, No. 4, August 1997 Aug 1997

Water Current, Volume 29, No. 4, August 1997

Water Current Newsletter

Fifth Annual Festival of Color Highlights Landscaping, Youth Activities Near Mead
From the Director: Retirement, New Staff Welcomed, USGS Funds Nebraska Proposals
Unicameral Moves Quickly on Changes to Instream Appropriations Process with LB877
Schulze One of Three Extension Staff Honored
Native Plants Help Clean-Up Toxins
Spalding Recognized for EPA Superfund Cleanup Technique
Education and Action Join Forces
Water News Briefs
42nd Annual Midwest Groundwater Conference
Symposium Focused on Water Act and Groundwater
Nineteen Attend Groundwater U
Environment97
AWWA Research RFPs
Ground Water Protection Council Annual Forum in Cleveland, Ohio
National Drought Planning Center Headquarters at UNL

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Biology Of Shovelnose Sturgeon, Scaphirhynchus Platorynchus, In The Lower Platte River, Nebraska, Robin L. Hofpar Aug 1997

Biology Of Shovelnose Sturgeon, Scaphirhynchus Platorynchus, In The Lower Platte River, Nebraska, Robin L. Hofpar

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

No abstract provided.

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Idealwise Algebraic Independence For Elements Of The Completion Of A Local Domain, William Heinzer, Christel Rotthaus, Sylvia Wiegand Jul 1997

Idealwise Algebraic Independence For Elements Of The Completion Of A Local Domain, William Heinzer, Christel Rotthaus, Sylvia Wiegand

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Over the past forty years many examples in commutative algebra have been constructed using the following principle: Let k be a field, let S k[xl Xn]x,xn) be a localized polynomial ring over k, and let a be an ideal in the completion S of S such that the associated prims of a are in the generic formal fiber of S; that is, p N S (0) for each p Ass(S/a):. Then S embeds in S/a, the fraction field Q(S) of S embeds in the fraction ring of S/a, and for certain choices of a, the intersection D Q(S) f3 (S/a) …

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Water Current, Volume 29, No. 3, June 1997 Jun 1997

Water Current, Volume 29, No. 3, June 1997

Water Current Newsletter

Earth Wellness Festival Gets One of Three IANR Cooperative Extension Team Awards
From the Director: Water Resources Tour; Research Proposals
Conservation Runs in the Family; Elm Creek HUA Gets Boost from Demonstration Farm
Water Sciences Lab Gives Workshops
Blue River Basin Water Quality Team Wins IANR Initiative Award
Irrigation Council Tour to Visit Western Colorado
Water News Briefs
Don't Pass the Salt, Please
Information, Please
Survey Says
Midwest Entering "Little Ice Age?"
Rivers and History
Groundwater Protection Tools for the New Era is Symposium Topic
Record Numbers of Sites to Recycle Pesticide Containers

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Effects Of Ultraviolet Radiation On Attached Diatom Growth And Distribution, Heather Lynn Emsley Hatsell May 1997

Effects Of Ultraviolet Radiation On Attached Diatom Growth And Distribution, Heather Lynn Emsley Hatsell

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

No abstract provided.

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Water Current, Volume 29, No. 2, April 1997 Apr 1997

Water Current, Volume 29, No. 2, April 1997

Water Current Newsletter

State Collaboration Key to Sustaining Aquifer
From the Director: Participants Pleased with Conference; Certifying Nebraska Water Operators
Water Stewards Honored at 26th Annual Water Conference
Environmental Programs Web Site Named "Best of the Internet"
Nebraska's Natural Resources Districts Celebrating Silver Anniversary
NU-KSU Join Forces to Reduce Nonpoint Source Pollution in Blue River Basins Water News Briefs
Accessing Water on the World Wide Web

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Water Current, Volume 29, No. 1, February 1997 Feb 1997

Water Current, Volume 29, No. 1, February 1997

Water Current Newsletter

Innovative Groundwater Cleanup Technique Being Featured in EPA's Technology Profiles
From the Director: Funding Sources Explored; Award Recognizes Stewardship
Prevention Helps Safeguard Drinking Water
Health and Human Services Department Certifies Nebraska Water Operators
"Splash" Is Interactive Intro to Nonpoint Source Pollution Through CD-ROM Game
Water Brief News
Register for Groundwater University
Expedition Planned for Children's Groundwater Festival
Comfort, Morrison Earn Research Awards
Volk Presented Water Guardian Award
Conference Deadline March 4
Unit Library A Little Known Resource

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Drought In The United States: 1996 Summary And Historical Perspective, William O. Brown, Richard R. Heim Jr. Feb 1997

Drought In The United States: 1996 Summary And Historical Perspective, William O. Brown, Richard R. Heim Jr.

Drought Network News (1994–2001)

Considerable variation in moisture conditions, on both a spatial and temporal basis, occurred in the contiguous United States during 1996. A tenth or more of the country experienced severe to extreme short-term (i.e., monthly) precipitation deficits during nearly half of the months, but in many months there were also large areas of excessive precipitation, which resulted in overall national conditions averaging near normal to wetter than normal. From a national perspective, long-term drought peaked at mid-year, when severe drought plagued the South and Southwest.

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Radiation And Gas Exchange Of Understory Species At Boreas: Research Annual Performance Report For Period June 15, 1997- June 14, 1998, E. A. Walter-Shea, T. J. Arkebauer Jan 1997

Radiation And Gas Exchange Of Understory Species At Boreas: Research Annual Performance Report For Period June 15, 1997- June 14, 1998, E. A. Walter-Shea, T. J. Arkebauer

School of Natural Resources: Documents and Reviews

No abstract provided.

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1997 Platte River Basin Ecosystem Symposium Proceedings Jan 1997

1997 Platte River Basin Ecosystem Symposium Proceedings

Water Current Newsletter

No abstract provided.

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Ground Water, Robert F. Diffendal Jr. Jan 1997

Ground Water, Robert F. Diffendal Jr.

Department of Earth and Atmospheric Sciences: Faculty Publications

A geologic overview of the groundwater supply underlying Cheyenne County, Nebraska (1997).

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Histomorphological Responses Of Red Shiner (Cyprinella Lutrensis) To Atrazine, Terbufos, And Their Mixture, Ibrahim A. Messaad Dec 1996

Histomorphological Responses Of Red Shiner (Cyprinella Lutrensis) To Atrazine, Terbufos, And Their Mixture, Ibrahim A. Messaad

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

Alterations of normal histomorphology of fish tissues, behavior, and thermal tolerance are recognized by environmental toxicologists and fish biologists as powerful tools indicating diverse biochemical and physiological changes. Toxicity of atrazine (2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine), terbufos (S-(((1,1-dimethyl-ethyl)thio)methyl)O,O-diethyl phosphorodithioate), and their mixture to red shiner (Cyprinella lutrensis) at 23$\sp\circ$C and 30$\sp\circ$C was investigated in 14-d bioassays after 14-d acclimation. During the bioassays, fish behavior, indications of toxicosis, and external anomalies were observed. After the bioassays, the critical thermal maximum (CTM) was determined. Fish also were preserved for examinations of gill, liver, and kidney tissues using scanning electron microscopy (SEM) and light microscopy (LM). SEM …

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Water Current, Volume 28, No. 6, December 1996 Dec 1996

Water Current, Volume 28, No. 6, December 1996

Water Current Newsletter

UNL Remediation Research Gets NSF/EPSCoR Funding Boost
From the Director: Implementation Plans Continue for "School of Natural Resources;" New Staff Joins Water Center
Drought, Climate Change Effects on Aquifer Are Topics for 26th Water Conference
New Database Aids Navigating Platte River Information
Applicator Training Sessions to Start Again Next Month
"When the Rains Don't Come" Subject of Seminar Series
Spaldings Speak at Korea's Cheju University

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The Effects Of Wet Meadow Fragmentation On Grassland Birds, Christopher J. Helzer Dec 1996

The Effects Of Wet Meadow Fragmentation On Grassland Birds, Christopher J. Helzer

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

No abstract provided.

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Water Current, Volume 28, No. 5, October 1996 Oct 1996

Water Current, Volume 28, No. 5, October 1996

Water Current Newsletter

Republican River Irrigators Seek to Make Every Drop Count
From the Director: New School to be Formed Within IANR, UNL
1997 Water Resources Seminar, Drought, Climate Change and Water Management
Pesticide Education Reaches Across State
New Publication Focuses on Pesticide Runoff
NRCS Works with Landowners to Protect Water Quality
Water News Briefs
Water Council Members Attend Annual Meeting
Nitrate Program Works Despite Level Increase
Colorado State Creates the Water Center
Water Data Base Updated
Groundwater Foundation on the Web
1997 Conferences to Address Sustainable Management

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Propagation Of Juniperus For Conservation Plantings In The Great Plains, Scott Allen Lee Aug 1996

Propagation Of Juniperus For Conservation Plantings In The Great Plains, Scott Allen Lee

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

No abstract provided.

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Water Current, Volume 28, No. 4, August 1996 Aug 1996

Water Current, Volume 28, No. 4, August 1996

Water Current Newsletter

Four-Year Study Finds NU Recommendations Dependable
From the Director: Nebraska Grants Success
Fluoridation Makes Comeback in Nebraska Communities
Installation of Water Garden New to Festival

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The Biology Of Alewife Alosa Pseudoharengus In Lake Ogallala, Nebraska, Eric A. Laux Aug 1996

The Biology Of Alewife Alosa Pseudoharengus In Lake Ogallala, Nebraska, Eric A. Laux

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

No abstract provided.

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Water Current, Volume 28, No. 3, June 1996 Jun 1996

Water Current, Volume 28, No. 3, June 1996

Water Current Newsletter

Water Resources Tour to Explore Republican River Basin
From the Director: Summer Brings Flurry of Grant-Related Activities
Of Groundwater, Surface Water and Fish, the 94th Nebraska Legislature Adjourns
Water Rights Key Issue for Missouri Basin Tribes
Thorson Defines Challenge for Missouri River Basin
Missouri River Endangered
New Video Features Runoff Pollution
Nebraska Water News
Platte Seminar Video Tapes Available
Directory Lists Nebraska Contacts
Kuzelka Recognized For Groundwater Efforts
Three Respondents Win Water Bottles
Web Site Expanded
Wetlands Hotline Operated by EPA
Sheffield Selected to Achievement Hall
Report Examines Pesticides in Stream
31 Counites to Offer Pesticide Container Recycling

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Growth And Yield Of Snap Beans (Phaseolus Vulgaris L.) As Affected By Shelterbelts And Planting Dates, Mohd Nazip Suratman May 1996

Growth And Yield Of Snap Beans (Phaseolus Vulgaris L.) As Affected By Shelterbelts And Planting Dates, Mohd Nazip Suratman

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

No abstract provided.

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Thermal Tolerances Of Platte River Fishes: Field And Laboratory Studies, Brett P. Fessell May 1996

Thermal Tolerances Of Platte River Fishes: Field And Laboratory Studies, Brett P. Fessell

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

No abstract provided.

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Chronic Effects Of Baseflow Levels Of Atrazine On Platte River Algae, Karen J. Nelson May 1996

Chronic Effects Of Baseflow Levels Of Atrazine On Platte River Algae, Karen J. Nelson

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

No abstract provided.

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Influence Of Prey Availability On Walleye (Stizostedion Vitreum), Mark T. Porath May 1996

Influence Of Prey Availability On Walleye (Stizostedion Vitreum), Mark T. Porath

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

No abstract provided.

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Water Current, Volume 28, No. 2, April 1996 Apr 1996

Water Current, Volume 28, No. 2, April 1996

Water Current Newsletter

Speakers Clear Up "Muddy Mo" Perspectives at Conference
From the Director: Annual Water Conference Brings New Perspectives
Water Efforts Recognized at Awards Banquet
Global Warming: Researchers Find Plains at Risk for Climate Change
Free Environmental Sciences Software
Pesticide Guides, Maps Available
US Geological Survey Conducts Water Quality Assessment in Central Nebraska

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Water Current, Volume 28, No. 1, February 1996 Feb 1996

Water Current, Volume 28, No. 1, February 1996

Water Current Newsletter

Teachers Downlink Water Lessons
From the Director: Missouri, Platte Rivers Focus of Spring Events
Two Best Management Practices May Be More Practical and Effective Than a Current Label Requirement
Zhang Stretches Potential of Tiny Organisms
Nebraska Water News
Kamble Receives National Award
Conference Flier Mailed to Readers
Program Pays to Enroll Pivot Corners for Habitat
Pesticides Plentiful in Gardening, Lawn Care
Nebraska Field Days Influence Participants
WEF Announces Speciality Conference
Research, Teaching Intersect as Student Design Sampler

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Csrees Department Of Forestry, Fisheries & Wildlife Comprehensive Review, University Of Nebraska - Lincoln Jan 1996

Csrees Department Of Forestry, Fisheries & Wildlife Comprehensive Review, University Of Nebraska - Lincoln

School of Natural Resources: Documents and Reviews

No abstract provided.

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