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Full-Text Articles in Life Sciences

Endangered Species And Irrigated Agriculture, Water Resource Competition In Western River Systems, United States Department Of Agriculture, Economic Research Service Nov 1995

Endangered Species And Irrigated Agriculture, Water Resource Competition In Western River Systems, United States Department Of Agriculture, Economic Research Service

Agriculture

This report characterizes several aspects of water allocation tradeoffs between fish species listed under the Federal Endangered Species Act and agriculture in the American West. The geographic intersection between endangered/threatened (E/T) fish and agricultural production reliant on surface water for irrigation is identified. Three findings are: (1) 235 counties, representing 22 percent of the West's counties, contain irrigated production that relies on water from rivers with E/T fish, (2) areas generating the highest revenues per acre from crop production are those most dependent on surface water irrigation, and (3) these same areas are also most likely to be drawing water …


Noxious Weeds...A Biological Wildfire, Steven A. Dewey Aug 1995

Noxious Weeds...A Biological Wildfire, Steven A. Dewey

All Current Publications

Invasive noxious weeds have been described as a raging biological wildfire—out of control, and spreading rapidly. The devastation from these alien plants includes enormous economic losses to agriculture and irreparable ecological damage to wildlands


Vertebrate Animal Pest Control, Usu Extension Jun 1995

Vertebrate Animal Pest Control, Usu Extension

All Current Publications

Vertebrate pest control deals with animals possessing a backbone. Vertebrate pests include any vertebrate, native or introduced, domestic or wild, which affects human health, well-being, or conflicts in some way with human activities. This conflict can be either real or perceived.


Behavioral Characteristics Affect Habitat Selection Of Domestic Ruminants, Cody B. Scott May 1995

Behavioral Characteristics Affect Habitat Selection Of Domestic Ruminants, Cody B. Scott

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

I evaluated some of the factors affecting livestock distribution by conducting experimental (Chapters II and III) and observational (Chapter IV) studies. In Chapter II, I described the effect of locations of familiar foods and social interactions on choice of feeding location by lambs. Lambs were exposed to a pasture as subgroups of strangers and companions with different dietary habits (i.e., three lambs that preferred milo with three lambs that preferred wheat). Milo was placed on one end and wheat on the other, about 100 m apart. Strangers typically fed in different locations, reflecting dietary preferences. Conversely, companions fed in both …


Assessing The Relative Utility Of Models Of Vegetation Dynamics For The Management Of Sagebrush Steppe Rangelands, Paul E. Hosten May 1995

Assessing The Relative Utility Of Models Of Vegetation Dynamics For The Management Of Sagebrush Steppe Rangelands, Paul E. Hosten

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The literature, long-term temporal data sets, and spatial data points surrounding livestock watering pints within rangeland communities wearer used to examine common assumptions and concepts used in models of vegetation dynamics. Of the stability concepts examined, the constancy concept was invalidated using long-term relict area data, whereas long-term data following disturbance indicated that sagebrush-dominated areas could be considered as resilient under circumstances examined. Pioshpere as well as relict and post-disturbance data indicated that the individualistic notion of vegetation change was favored. Species showing the most predictability (based on repeatability of abundance curves, and spatial and temporal serial correlations) were sagebrush …


Plant Community Changes Over 54 Years Within The Great Basin Experimental Range, Manti-La Sal National Forest, Scott C. Walker, David K. Mann, E. Durant Mcarthur May 1995

Plant Community Changes Over 54 Years Within The Great Basin Experimental Range, Manti-La Sal National Forest, Scott C. Walker, David K. Mann, E. Durant Mcarthur

Aspen Bibliography

Plant community changes and natural succession over time impact forage values, watershed quality, wildlife habitat, and ecosystem dynamics. Comparisons were made between a vegetation map of community types completed in 1937 by the U.S. Forest Service, and vegetation maps compiled in 1990 of the same areas by satellite imagery, and through 1991 areal photo interpretation combined with ground truthing. The study area includes nearly all of the drainage in Ephraim Canyon located in central Utah which consists of 6,027 acres (2,439 ha). Elevation ranges from 6,600 to 10,400 feet (2,040 to 3,210 m). Vegetation types ranged from pinyon-juniper woodland through …


10 Common Questions About Food Irradiation, Charlotte Brennand Mar 1995

10 Common Questions About Food Irradiation, Charlotte Brennand

All Current Publications

No abstract provided.


Prolong The Life Of Equipment, Von Jarrett Feb 1995

Prolong The Life Of Equipment, Von Jarrett

All Current Publications

No abstract provided.


Engine Service Tips, Jumper Cables Used, Von Jarrett Feb 1995

Engine Service Tips, Jumper Cables Used, Von Jarrett

All Current Publications

No abstract provided.


Spark Plug Operation Selection And Maintenance, Von Jarrett Feb 1995

Spark Plug Operation Selection And Maintenance, Von Jarrett

All Current Publications

No abstract provided.


Cold Tractor Operations, Von Jarrett Feb 1995

Cold Tractor Operations, Von Jarrett

All Current Publications

No abstract provided.


Caring For Your Tires, Von Jarrett Feb 1995

Caring For Your Tires, Von Jarrett

All Current Publications

No abstract provided.


Diesel Fuel Storage, Von Jarrett Feb 1995

Diesel Fuel Storage, Von Jarrett

All Current Publications

No abstract provided.


Buying A Used Farm Machine, Von Jarrett Feb 1995

Buying A Used Farm Machine, Von Jarrett

All Current Publications

No abstract provided.


Checklist For Used Tractors, Von Jarrett Feb 1995

Checklist For Used Tractors, Von Jarrett

All Current Publications

No abstract provided.


Daily Maintenance Procedure, Von Jarrett Feb 1995

Daily Maintenance Procedure, Von Jarrett

All Current Publications

No abstract provided.


Engine Cooling System, Von Jarrett Feb 1995

Engine Cooling System, Von Jarrett

All Current Publications

No abstract provided.


Fourteen Commandments For Tractor Operators, Von Jarrett Feb 1995

Fourteen Commandments For Tractor Operators, Von Jarrett

All Current Publications

No abstract provided.


Getting The Most Out Of Your Tractor, Von Jarrett Feb 1995

Getting The Most Out Of Your Tractor, Von Jarrett

All Current Publications

No abstract provided.


Living With Fuel Contamination, Von Jarrett Feb 1995

Living With Fuel Contamination, Von Jarrett

All Current Publications

No abstract provided.


Maintain Machinery In Winter, Von Jarrett Feb 1995

Maintain Machinery In Winter, Von Jarrett

All Current Publications

No abstract provided.


Controlling Hydraulic System Contamination, Von Jarrett Feb 1995

Controlling Hydraulic System Contamination, Von Jarrett

All Current Publications

No abstract provided.


Scheduling Oil Sampling, Von Jarrett Feb 1995

Scheduling Oil Sampling, Von Jarrett

All Current Publications

No abstract provided.


Tractor Air Conditioning, Von Jarrett Feb 1995

Tractor Air Conditioning, Von Jarrett

All Current Publications

No abstract provided.


What You Need To Know About Retreads, Von Jarrett Feb 1995

What You Need To Know About Retreads, Von Jarrett

All Current Publications

No abstract provided.


Trouble Shooting, Von Jarrett Feb 1995

Trouble Shooting, Von Jarrett

All Current Publications

No abstract provided.


Bleeding Air From Diesel Fuel Lines & Filters, Von Jarrett Feb 1995

Bleeding Air From Diesel Fuel Lines & Filters, Von Jarrett

All Current Publications

No abstract provided.


Drain That Antifreeze, Von Jarrett Feb 1995

Drain That Antifreeze, Von Jarrett

All Current Publications

No abstract provided.


Diesel Engines, Von Jarrett Feb 1995

Diesel Engines, Von Jarrett

All Current Publications

No abstract provided.


Fuel System Maintenance, Von Jarrett Feb 1995

Fuel System Maintenance, Von Jarrett

All Current Publications

No abstract provided.