Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (11816)
- Utah State University (2741)
- University of Nevada, Las Vegas (1856)
- William & Mary (1844)
- University of Colorado Law School (1643)
-
- Western Washington University (1574)
- China Coal Technology and Engineering Group (CCTEG) (1269)
- Portland State University (1245)
- Department of Primary Industries and Regional Development, Western Australia (1193)
- University of Kentucky (1177)
- Chulalongkorn University (1081)
- Selected Works (1070)
- Montana Tech Library (853)
- University of Arkansas, Fayetteville (848)
- City University of New York (CUNY) (833)
- SIT Graduate Institute/SIT Study Abroad (663)
- University of South Florida (656)
- Clemson University (575)
- Old Dominion University (512)
- Louisiana State University (499)
- Loyola Marymount University and Loyola Law School (482)
- South Dakota State University (477)
- The University of Maine (461)
- University of Vermont (458)
- University of Texas Rio Grande Valley (416)
- SelectedWorks (388)
- Edith Cowan University (383)
- Montclair State University (363)
- University of Tennessee, Knoxville (344)
- University of Texas at El Paso (325)
- Keyword
-
- Climate change (1027)
- Sustainability (910)
- Water quality (851)
- Western Australia (763)
- Research and Technical Reports (657)
-
- United States (597)
- Conservation (529)
- Environment (498)
- Ecology (484)
- Management (476)
- 2014 International Conference on Hydroinformatics HIC (465)
- Groundwater (461)
- GIS (460)
- California (428)
- Virginia (418)
- Agriculture (406)
- Water (383)
- Colorado (348)
- Climate (334)
- Energy (310)
- Natural resources (310)
- Utah (302)
- Gas (301)
- Drought (279)
- Remote sensing (272)
- Hydrology (261)
- Invasive species (257)
- Land use (255)
- Salinity (249)
- And Energy; Structural Materials; Sustainability (248)
- Publication Year
- Publication
-
- Reports (1628)
- School of Natural Resources: Faculty Publications (1585)
- United States Department of Agriculture Wildlife Services: Staff Publications (1529)
- Coal Geology & Exploration (1269)
- Thai Environment (937)
-
- Silver Bow Creek/Butte Area Superfund Site (840)
- Salish Sea Ecosystem Conference (806)
- Electronic Theses and Dissertations (753)
- Independent Study Project (ISP) Collection (626)
- Theses and Dissertations (545)
- United States Geological Survey: Staff Publications (513)
- The Prairie Naturalist (483)
- Great Plains Wildlife Damage Control Workshop Proceedings (478)
- World of Coal Ash Proceedings (472)
- International Conference on Hydroinformatics (464)
- United States Department of Commerce: Staff Publications (424)
- Theses (402)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (399)
- Technical Reports (375)
- LSU Master's Theses (357)
- School of Natural Resources: Dissertations, Theses, and Student Research (343)
- USF Tampa Graduate Theses and Dissertations (340)
- S.C. Water Resources Conference (336)
- Journal of the Department of Agriculture, Western Australia, Series 4 (334)
- Open Access Theses & Dissertations (325)
- Memorandum (316)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (305)
- School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations (298)
- Water Current Newsletter (291)
- Resource management technical reports (287)
- Publication Type
Articles 52261 - 52290 of 52353
Full-Text Articles in Physical Sciences and Mathematics
Harvest Of Wild And Stocked Fish From The Logan River Drainage, Louis S. Pechacek
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.
It's Time To Take Stock
United States Environmental Protection Agency: Publications
Likening colleges and universities to the automobile industry may seem far-fetched, but is it? Each is engaged in fashioning and selling necessary products- one trained men, the other mechanical equipment. Both entered the post-war years with production at low ebb; unable to satisfy pent-up customer demands. Time and high-speed assembly lines have bridged the gap of gas buggy shortage. The impact of selective buying by a discriminating public is now real cause for concern among some of the motor moguls. Rumor has had it that schools teaching wildlife management are overproducing. We decided to gather facts and opinions at the …
Public Health Reports, Clarence M. Tarzwell
Public Health Reports, Clarence M. Tarzwell
United States Environmental Protection Agency: Publications
Preliminary tests with DDT for the control of mosquitoes, forest insects, and agricultural pests demonstrated that it was toxic to a wide variety of animal life. Because there were indications that the new insecticide would be widely used, apprehension was expressed by some groups that its extensive or indiscriminate use would cause extensive harm to wildlife.
The desirability of carefully controlled use was early recognized by those in charge of extensive programs for the control of insects of public health importance. A joint statement of policy for the use of DDT issued early in 1945 (1) by the Army and …
Ecology And Silviculture Of Whitecedar And Associated Hardwoods In Southern New Jersey, Silas Little Jr.
Ecology And Silviculture Of Whitecedar And Associated Hardwoods In Southern New Jersey, Silas Little Jr.
Yale School of the Environment Bulletin Series
No abstract provided.
Nebraska Fishing Waters
Nebraska Game and Parks Commission: Publications
Nebraska waters are inhabited by a wide diversity of fish, including both cold and warm water species. Brown, brook and rainbow trout represent the state's cold water species while the warm variety consists of white bass, large mouth bass, small mouth bass, rock bass, walleye, sauger, northern pike, white crappie, black crappie, perch, channel catfish, blue catfish, yellow catfish, bluegill, freshwater drum, bluegill, sunfish, pumpkin seed and bullhead.
All residents of Nebraska 16 years of age and over must purchase fishing permits to angle in the state. All non-residents, regardless of age, must possess nonresident permits to fish in Nebraska.
The Mt. Pleasant Story, United States Department Of Agriculture
The Mt. Pleasant Story, United States Department Of Agriculture
Elusive Documents
No abstract provided.
Relative Productive Value Of Land, Karl Harris, Vaughn E. Hansen
Relative Productive Value Of Land, Karl Harris, Vaughn E. Hansen
Reports
Location, markets, hard surface roads and other transportation facilities, churches, taxes, schools, and utilities are major factors in the monetary value of land, yet these things do not contribute to the land’s productivity. In this bulletin the only factor considered in determining the agricultural value of land is its productive capacity.
The three major factors in the productive value of land are water, climate, and soil.
These three factors are the principal ones in crop production. If any one of them is unfavorable to plant growth, it can inhibit or even prevent plant growth regardless of how favorable the other …
Digestion Studies With Sheep And Wild Antelope On A Sagebrush Ration, Paul Harold Kohler
Digestion Studies With Sheep And Wild Antelope On A Sagebrush Ration, Paul Harold Kohler
Electronic Theses and Dissertations
Introduction: Those who are responsible for the management of antelope, range livestock, and the range seek to maintain such a balance that al may thrive and reproduce. This is inevitably a difficult objective since the balance in numbers of antelope and livestock may be changed annually, but range flora changes only in long-time cycles. Therefore, the balance between the wild and domestic species and the range must be adjusted frequently by range and livestock management. The adjustment of the number of domestic animals to fit the carrying capacity of the range may be accomplished by changing management and marketing practices …
Press Reports (1949), Walter Lawrance
Addition Of Sodium Nitrate (1949), Walter Lawrance
Addition Of Sodium Nitrate (1949), Walter Lawrance
Walter Lawrance Papers
No abstract provided.
Analytical Data, Walter A. Lawrance
Management Of Native Deer In Nebraska, John H. Wampole, Edson Fichter
Management Of Native Deer In Nebraska, John H. Wampole, Edson Fichter
Nebraska Game and Parks Commission: Publications
Deer are on the increase in Nebraska. Reports of deer seen, of deer killed on highways, and of localized cases of damage to crops by deer have become increasingly frequent during the last ten years. Since Nebraska is not primarily a land of forests nor of great repute as a deer state, the presence of these mammals in more than rare occurrences arouses considerable interest-and creates new problems in wildlife management.
It is the purpose of these notes to answer some of the questions most commonly asked about deer in Nebraska, and to point out certain misunderstandings which have led …
Geological Survey Circular 346: First Fourteen Years Of Lake Mead, Harold E. Thomas
Geological Survey Circular 346: First Fourteen Years Of Lake Mead, Harold E. Thomas
Publications (WR)
This circular summarizes the results of recent studies of Lake Mead and its environs. Area-capacity tables, prepared on the basis of a hydrographic survey of the lake in 1948-49, show that the capacity of the reservoir was reduced 4. 9 percent during the first 14 years after Hoover Dam was completed, but the usable capacity was reduced only 3.2 percent. Practically all of this reduction was caused by accumulation of sediment in the reservoir. Studies of inflow and outflow indicate that the reservoir has a total storage capacity about 12 percent greater than that shown by the area-capacity table, because …
Development Of The Potential Weber Basin Project, Utah: Bonneville Basin, United States Department Of The Interior
Development Of The Potential Weber Basin Project, Utah: Bonneville Basin, United States Department Of The Interior
Elusive Documents
No abstract provided.
America's Playground For Americans: An Appriciation Of Colorado And Utah, Edwin L. Sabin
America's Playground For Americans: An Appriciation Of Colorado And Utah, Edwin L. Sabin
Elusive Documents
No abstract provided.
American And British Atomic Energy Reports, O. Willard Holloway
American And British Atomic Energy Reports, O. Willard Holloway
United States Department of Commerce: Staff Publications
This publication lists all of the reports on atomic energy which have been released by the Office of Technical Services. Included are reports of both the United States and Great Britain. These reports are available to interested parties in either photostat
or microfilm form. Reports should be ordered from OTS by PB number and the order should be accompanied by a check or money order made payable to the Treasurer of the United States.
For convenience this publication is arranged in four parts:
Part 1. List of American Atomic Energy Reports.
Part 2. Numerical Index to American Atomic Energy Reports …
Interim Report On The Florida Crawfish Investigation., Marine Laboratory
Interim Report On The Florida Crawfish Investigation., Marine Laboratory
RSMAS Technical Reports
During 1944-1945 the volume of lobsters landed in the spiny lobsters industry decreased to about one half of the 1943 volume and to little more than one third of the amound landed during 1941, which was the year of peak production. Since it was suggested that the cause of this might be overfishing, the University of Miami Marine Laboratory was invited to carry out an investigation in co-operation with the United States Fish and Wildlife Service and the Florida State Board of Conservation.
Report On A Survey Of The Sponge Grounds North Of Anclote Light: With Recommendations For The Control And Development Of The Industry., Marine Laboratory
Report On A Survey Of The Sponge Grounds North Of Anclote Light: With Recommendations For The Control And Development Of The Industry., Marine Laboratory
RSMAS Technical Reports
No abstract provided.
Progress Report On The Ground-Water Hydrology Of The Republican And Frenchman River Valleys, With A Section On The Chemical Quality Of The Ground Water, Herbert A. Waite, Herbert A. Swenson
Progress Report On The Ground-Water Hydrology Of The Republican And Frenchman River Valleys, With A Section On The Chemical Quality Of The Ground Water, Herbert A. Waite, Herbert A. Swenson
United States Geological Survey: Water Reports and Publications
Abstract for first section
This report is based on current investigations of the groundwater resources of the Republican and Frenchman River Valleys in Nebraska and includes data gathered to December 31, 1947. These studies vere started late in 1945 as a part of a program of groundwater investigations now in progress in connection with the Missouri River basin development plan. Studies to date have consisted principally of periodic observations of water table fluctuations at selected observation wells, of collection of samples of groundwater for chemical analysis, and of collection of data concerning the municipal water supplies in the valley. In …
Review Of The Effects Of Ddt In The Blue Crab, Callinectes Sapidus, Willard A. Van Engel
Review Of The Effects Of Ddt In The Blue Crab, Callinectes Sapidus, Willard A. Van Engel
Reports
Notes on the usage and effects of DDT.
Studies On The Natural History Of The Limpets Of The Family Acmaedae, Ferdinand Stanley Ruth
Studies On The Natural History Of The Limpets Of The Family Acmaedae, Ferdinand Stanley Ruth
University of the Pacific Theses and Dissertations
This thesis is a report of the findings of two years of part-time work on the limpets of the family Acmaedae. The major portion of the work was done on the Monterey Peninsula between Point Pines, 36° 38' 30" N. latitude, 121° 56' 00" W. longitude, and Pescadero Point 30° 33' 40" N. latitude, 121° 56' 30" W. longitude. The work on homing in Acmaea persona, artificial parthenogenesis in the eggs of Acmaea pelta, and artifical insemination of the eggs of Acmaea pelta was carried on at the Pacific Marine Station, Dillon Beach, California at 38° 14' 30" N. latitude, …
Odor Report (1947), Walter A. Lawrance
Press Reports (1947), Walter A. Lawrance
Observations On The Nighttime Resting And Biting Habits Of Anopheline Mosquitoes In Ddt-Treated And-Untreated Buildings, Clarence M. Tarzwell, Frank W. Fisk
Observations On The Nighttime Resting And Biting Habits Of Anopheline Mosquitoes In Ddt-Treated And-Untreated Buildings, Clarence M. Tarzwell, Frank W. Fisk
United States Environmental Protection Agency: Publications
Laboratory cage tests and controlled experiments in houses have clearly demonstrated that residual-spray deposits of DDT are lethal to mosquitoes for considerable periods. Although these tests valuable information on the durability of DDT residual deposits, they did not give information on the mortality of malaria mosquitoes naturally entering treated dwellings in search of a blood meal. In order to secure a lethal dose of DDT from residual deposits, mosquitoes must actually touch the material and be exposed to it for a considerable period. This period has been shown to vary (1), depending on the temperature, age of treatment, density and …
The Effect Of Ddt Spraying In The Langley-Messick Area, 1947, Willard A. Van Engel
The Effect Of Ddt Spraying In The Langley-Messick Area, 1947, Willard A. Van Engel
Reports
Observations and notes on the effects of DDT spraying.
Water Levels And Artesian Pressure In Wells In Las Vegas Valley And In Other Valleys In Nevada, 1913-1945, T. W. Robinson, George B. Maxey, J. C. Fredericks, C. Harry Jameson
Water Levels And Artesian Pressure In Wells In Las Vegas Valley And In Other Valleys In Nevada, 1913-1945, T. W. Robinson, George B. Maxey, J. C. Fredericks, C. Harry Jameson
Publications (WR)
The rock formations of the earth are great natural reservoirs in which a part of the water derived from rain and snow is stored. Water levels and artesian pressure in wells register the stages of these natural reservoirs. The changes in water levels or artesian pressure are indicative of the depletion or replenishment of the natural reservoirs. Systematic and periodic measurements of water levels and artesian pressure in wells have been made in Nevada, by State and Federal agencies from time to time. However, only a few of these measurements have ever been published. Under the cooperative arrangement between the …
Duck, Goose And Pheasant Records From Ogallala Game Dressing Station, 1943-1946, John H. Wampole
Duck, Goose And Pheasant Records From Ogallala Game Dressing Station, 1943-1946, John H. Wampole
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
For several seasons records of the number of ducks brought in to be dressed have been kept at an Ogallala dressing station. Records have been tabulated and summarized in an effort to measure the hunter success. Since no record of hunter-days or hunter-trips is obtainable, this report is based upon seasonal totals, daily averages, and numbers per bag. Table III (page 27) shows the number of bags, seasonal totals and average numbers of birds per bag. Table IV shows the take by months and Table V shows the averages per day for the three months of each season.
Wildlife Records From Mail Carriers In April, Levi L. Mohler
Wildlife Records From Mail Carriers In April, Levi L. Mohler
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
608 mail carriers kept records of game birds seen during the week of April 21 - 26. This was the eighth time that mail carriers have cooperated on a statewide basis. April counts were omitted in 1946 but comparisons are made below of 1945 and 1947 data.
The mail carriers' work provides an inexpensive method of getting extensive statewide observations, and informational bulletins returned to the carriers are of definite value as a public relations step. (Many ot the carriers send in long letters, in addition to the card form, and in a number of instances they have reported information …
Odor Report (1946), Walter Lawrance
Press Report (1946), Walter A. Lawrance