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All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Articles 301 - 307 of 307

Full-Text Articles in Environmental Sciences

Factors Affecting The California Quail Populations In Uintah County, Utah, R. Lynn Nielson May 1952

Factors Affecting The California Quail Populations In Uintah County, Utah, R. Lynn Nielson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The California Quail is native to the coastal and semi-arid regions of California extending north into Oregon. Two subspecies are commonly recognized. the California Quail (Lophortyx californica brunnescens Ridgway), and the Valley Quail (Lophortyx californica californica Shaw). The two forms are very similar in coloration and habits and, for the purpose of this study, no effort is made to distinguish the two.


The Incidence Of Lead Shot In Waterfowl Of The Pacific Flyway, With Special Reference To The Great Salt Lake Basin, Wayne H. Heuer May 1952

The Incidence Of Lead Shot In Waterfowl Of The Pacific Flyway, With Special Reference To The Great Salt Lake Basin, Wayne H. Heuer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was conducted to determine basic data on the incidence of lead shot in ducks us ing the Great Salt Le.lee Basin. The study has been divided into two parts; (1) incidence of ducks carrying lead shot in their tissues and (2) incidenoe of ducks carrying ingested lead shot.


Some Effects Of Fluctuating And Falling Water Levels On Waterfowl Production, Kenneth E. Wolf May 1952

Some Effects Of Fluctuating And Falling Water Levels On Waterfowl Production, Kenneth E. Wolf

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There are today many areas and types of water storage. The uses to which these are put are many, and the prospect for the future can only be that there will be an increase in the number of these reservoirs. These areas are usually operated with regard only for power production, irrigation, or storage, but there is a growing concern about the effects on wildlife which this type of operation may have. Fluctuating water levels, and falling water levels are not restricted to man-made impoundments tut are characteristic of many of then. Biologists have observed that these variations in water …


Pellet Seeding On Sagebrush Range, Gordon E. Gatherum May 1951

Pellet Seeding On Sagebrush Range, Gordon E. Gatherum

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Seeding deteriorated range lands efficiently and economically has become one of the most promising means of improving the agricultural economy of the western range states. By providing the most rapid means of increasing the quantity and improving the quality of forage for livestock, and aiding in the prevention of soil erosion, artificial seeding contributes directly to the stability of agriculture.

Although many successful methods of artificial revegetation have been developed by experience and through research, there is still a great need for refinement in techniques to insure better overall success and greater economy of operation. Improper methods often result in …


Life History Of The Utah Sculpin Cottus Bairdi Semiscaber (Cope) In Logan River, Utah, William M. Zarbook May 1951

Life History Of The Utah Sculpin Cottus Bairdi Semiscaber (Cope) In Logan River, Utah, William M. Zarbook

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study of the Utah sculpin in Logan River was based on 801 specimens collected during 1949 to March 1951. Numbers of fish examined for various catagories of the study wares length-frequency, 495; aging by vertebrae, 407; length-weight relationship, 601; and food habits, 275.

Fish were collected by use of an electric shocking machine generating 600 watts and 220 volts. Numbers of fish occurred as high as 150 per tenth mile of stream. Preferred habitats occurred in areas of coarse gravel and small rocks.

Vertebrae dissected from the fish were used in age determination. Length-frequency proved to be a general …


Harvest Of Wild And Stocked Fish From The Logan River Drainage, Louis S. Pechacek May 1950

Harvest Of Wild And Stocked Fish From The Logan River Drainage, Louis S. Pechacek

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Logan River heads in the southeastern corner of Franklin County, Idaho, and runs in a south and westerly direction. It enters the state of Utah through the northern boundary in the northeast corner of Cache County. The main stream is fed by two tributary streams which head in separate directions a few miles apart. The Franklin Basin branch is the main contributing tributary while the Beaver Creek branch is nearly as large.


Bird Studies Of The Bear River Marshes, Ernest W. Parkinson May 1933

Bird Studies Of The Bear River Marshes, Ernest W. Parkinson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The establishment of the Bear River Bay Bird Refuge has created for the state of Utah an immense and valuable biological field, a veritable paradise for naturalist and sportsman alike. The naturalist wants a place to study wild life and the sportsman desires game. With the proper control of open seasons on wild fowl the hunting instinct and incentive for the sport should be satisfied for the sportsman. To the naturalist this region will open up bountiful treasures of knowledge that is to be gained only by intense and prolonged scientific study.