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Articles 16921 - 16950 of 18620
Full-Text Articles in Entire DC Network
Stand Der Akklimatisation Von Ondatra Zibethica L., 1766 In Der Mongolei, N. Dawaa, P. Lchamsuren, Michael Stubbe
Stand Der Akklimatisation Von Ondatra Zibethica L., 1766 In Der Mongolei, N. Dawaa, P. Lchamsuren, Michael Stubbe
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Die Bisamratte Ondatra zibethica ist auf dem Territorium der Mongolischen Volksrepublik in den Flußsystemen der Selenga, des Ulz und Onon sowie des Bulgan-gol selbständig eingewandert. Zu Einbürgerungen kam es 1967 und 1971 am Char-us-nuur sowie 1978 am Zergijn-caagan-nuur und Olon-nuur. Der weiteren Verbreitung dieses wertvollen Pelzlieferanten wird besondere Aufmerksamkeit geschenkt.
Russian abstract:
Заключение
На территсрии Монгольской Народной Республики ондатра Ondatra zibethica са мостоятельно заселила системы рек Селенга, Улз, Онон и Булган-Гол. Интро дукции происошли в 1967 и 1973 гг. на Хар-Ус-Нууре, а также в 1978 г. на Зер гийн-Цагаан-Нуурс и Олон-Нууре. Дальнейшему распространению этого ценного шушного зверя удс."l'ястся особое внимание. …
Limiting Swine Stress With Evaporative Cooling In The Southeast, Robert L. Fehr, K. T. Priddy, Samuel G. Mcneill, Douglas G. Overhults
Limiting Swine Stress With Evaporative Cooling In The Southeast, Robert L. Fehr, K. T. Priddy, Samuel G. Mcneill, Douglas G. Overhults
Biosystems and Agricultural Engineering Faculty Publications
Three-hourly weather data for 7 locations in the Southeast and Central United States were used to evaluate the feasibility of evaporative cooling for reducing swine stress. Stress was defined as a relationship between dry and wet bulb temperatures which exceeded a stress index of 85. This analysis indicates that properly installed evaporative coolers could reduce the number of hours that stress would occur in swine facilities from 89.6 to 96.4% depending on location.
Growth And Activity Of Juvenile Mosquitofish: Temperature And Ration Effects, Wayne A. Wurtsbaugh, J. Cech
Growth And Activity Of Juvenile Mosquitofish: Temperature And Ration Effects, Wayne A. Wurtsbaugh, J. Cech
Watershed Sciences Faculty Publications
The effects of constant temperatures (10, 15, 20, 25, 30, and 35 C) and ration size on the growth rates and activity of juvenile mosquitofish Gambusia affinis (mean wet weight, about 20 mg) were measured in laboratory experiments. On ad libitum rations of Tubifex spp. worms, food-consumption rates of mosquitofish were very high, ranging from 7% dry body weight/day at 10 C to 83%/day at 35 C. Growth increased from 0% dry body weight/day at 10 C to 21%/day at 30 C and declined slightly at 35 C. Gross efficiencies (100 growth/food consumption) increased from 0 at 10 C to …
Birds On Modified Wetlands In Eastern South Dakota, E. Nell Brady
Birds On Modified Wetlands In Eastern South Dakota, E. Nell Brady
Electronic Theses and Dissertations
To examine the role of bird species (other than Anatidae) in the prairie wetlands ecosystem. Seven wetlands on Waterfowl Production Areas in eastern South Dakota were utilized to measure differences between bird communities in plots with dug brood complexes and non-modified plots. Thirty-eight species of wetland birds were recorded on wetlands during June 1981 and June 1982. The most abundant species included the red-winged blackbird (Agelaius phoeniceus), marsh wren (Cistothorus palustris), and song sparrow (Melospiza melodia). Analysis of variance was used to test between treatment (modified and natural plots on the wetlands) differences for the dependent variables: density, bird species …
Feeding Behavior, Food Consumption, Growth, And Survival Of Hybrid Grass Carp (Hypophthalmichthys Nobilis X Ctenopharyngodon Idella) In South Dakota, Marc C. Harberg
Feeding Behavior, Food Consumption, Growth, And Survival Of Hybrid Grass Carp (Hypophthalmichthys Nobilis X Ctenopharyngodon Idella) In South Dakota, Marc C. Harberg
Electronic Theses and Dissertations
Plant preference of yearling hybrids (Hypophthlmichthys nobilis X Ctenopharyngodon idella) was examined under control conditions at the Gavins Point National Fish Hatchery, Yankton, South Dakota and under field conditions in two stockwater impoundments in south-central South Dakota. IN feeding trials, conducted in a 0.07 ha hatchery pond, hybrid grass carp selected Najas guadalupensis, Chara sp. and Potamogeton pectinuatus. Ceratophyllum demersum and Myriophyllum spicatum were not consumed. Under field conditions N. guadalupensis also appeared to be preferred while C. demersum was not. Feeding behavior, daily consumption, growth, and survival were also evaluated in the two stockwater impoundments. Hybrids averaging 51g were …
Characteristics And Success Of South Dakota Archery Deer Hunters, Kelly Brian Mcphillips
Characteristics And Success Of South Dakota Archery Deer Hunters, Kelly Brian Mcphillips
Electronic Theses and Dissertations
Two mail questionnaires were sent to South Dakota archery deer hunters after the 1981 archery deer season. One questionnaire was sent to a random sample of all bowhunters, and the second was sent to a sample of bowhunters failing to return the South Dakota Department of Game, Fish, and Parks (SDGFP) mandatory big game hunter report card. Success rate of bowhunters killing deer and crippling rate of deer by bowhunters were determined. A profile of the average bowhunter was developed. The SDGFP bowhunter reporting system was evaluated. Success rates from the 2 questionnaires (29% and 19%) were significantly different from …
A Study Of Sensitive Lands In Provo, Doris R. Monson
A Study Of Sensitive Lands In Provo, Doris R. Monson
Theses and Dissertations
Sensitive lands are being developed in great quantity. Because of problems caused by the development of sensitive lands, Provo City has developed land use ordinances. This thesis examines the development of Provo's ordinances along with the development of its sensitive lands. It determines ways that the city can strengthen their land use ordinances and avoid some of the problems found in sensitive land development.
Mammals Of The Northern Great Plains, J. Knox Jones Jr., David M. Armstrong, Robert F. Hoffmann, Clyde Jones
Mammals Of The Northern Great Plains, J. Knox Jones Jr., David M. Armstrong, Robert F. Hoffmann, Clyde Jones
University of Nebraska State Museum: Mammalogy Papers
For the purposes of this book, the Northern Great Plains are defined as the states of Nebraska, North Dakota, and South Dakota. As a physiographic concept, the northern part of the great interior grasslands of North America is, of course, much broader in geographic extent than the Dakotas and Nebraska, but the three states lie in the heart of the region, and thus the title for this work seems appropriate. Our expectations in writing Mammals of the Northern Great Plains were to provide a comprehensive, yet semitechnical, treatmeat of free-living mammals that would prove useful to specialist and nonspecialist alike. …
Historical Patterns Of Phytoplankton Productivity In Lake Mead, Richard T. Prentki, Larry J. Paulson
Historical Patterns Of Phytoplankton Productivity In Lake Mead, Richard T. Prentki, Larry J. Paulson
Publications (WR)
Lake Mead was impounded in 1935 by the construction of Hoover Dam. The Colorado River was unregulated prior to then and therefore was subjected to extreme variations in flows and suspended sediment loads. Hoover Dam stabilized flows and reduced suspended sediment loads downstream, but Lake Mead still received silt-laden inflows from the upper Colorado River Basin. The Colorado River contributed 97% of the suspended sediment inputs to Lake Mead, and up to 140 x 1O6 metric tons (t) entered the reservoir in years of high runoff. Most of the sediments were deposited in the river channel and formed an …
Raw Water Quality In The New Charleston, Illinois Pump Storage Reservoir, Kevin G. Lookis
Raw Water Quality In The New Charleston, Illinois Pump Storage Reservoir, Kevin G. Lookis
Masters Theses
Charleston, Illinois, a city located in east-central Illinois, recently implemented a new concept in a raw water system. Due to storage capacity-sedimentation problems in the old Lake Charleston-Embarras River raw water supply, the Charleston Pump Storage Reservoir was constructed. The new system involved building a dike separating the Lake Charleston impoundment from the Embarras River. Water to increase the storage capacity of the reservoir can now be selectively pumped into the impoundment from the river.
Raw water quality in the reservoir was monitored on a weekly basis for a full year from August, 1981 to August, 1982. The levels of …
An Experimental Investigation Of The Effects Of Crude Oil On Two Freshwater Lake Ecosystems, Martin D. Werner, V. Dean Adams, Vincent A. Lamarra
An Experimental Investigation Of The Effects Of Crude Oil On Two Freshwater Lake Ecosystems, Martin D. Werner, V. Dean Adams, Vincent A. Lamarra
Reports
Responses of two freshwater lake ecosystems of the Intermountain West to crude oil impaction were investigated. The research was conducted in two phases; in the first phase effects of crude oil were studied on an ecosystem established in three phase laboratory microcosms (gaseous-aqueous-sediment), which simulated the natural lakes. Notable responses of the microcosm ecosystem to oil impaction included: an increased oxygen demand by the biological community, nutrient immobilization, a reduction in plant biomass accumulation and a heterotrophically dominated ecosystem. The increased availability of biologically degradable reduced carbon (i.e., the oil) and nutrient immobilization, rather than toxic effects of oil on …
Fecal Coliform Release Studies And Development Of A Preliminary Nonpoint Source Transport Model For Indicator Bacteria, Everett P. Springer, Gerald F. Gifford, Michael P. Windham, Richard Thelin, Michael Kress
Fecal Coliform Release Studies And Development Of A Preliminary Nonpoint Source Transport Model For Indicator Bacteria, Everett P. Springer, Gerald F. Gifford, Michael P. Windham, Richard Thelin, Michael Kress
Reports
The effect of grazing on water quality has been documented by bacteriological studies of streams adjacent to grazed areas. Bacterial release from fecal deposits is a parameter of the pollution transport mechanism that is poorly understood. The objective of this study was to determine a fecal coliform release function for cattle fecal deposits. Standard cowpies were rained on with a rainfall simulator, and the fecal coliform counts were determined using the most probably number (MPN) method of enumeration. The fecal deposits were rained on at ages 2 through 100 days. The effects of rainfall intensity and recurrent rainfall were tested. …
Effects Of Cadmium On Streams And Irrigated Agriculture In The Presence And Absence Of Oil Shale Leachate, Douglas A. Selby, Jean M. Ihnat, Fredrick J. Post, Jay J. Messer
Effects Of Cadmium On Streams And Irrigated Agriculture In The Presence And Absence Of Oil Shale Leachate, Douglas A. Selby, Jean M. Ihnat, Fredrick J. Post, Jay J. Messer
Reports
Artificial streams, soil perfusion columns, and potted plants were exposed to 20 ug Cd/l in the presence and absence of unretorted oil shale leachate. High cadmium accumulations occurred in the stream biota, but did not measurably affect community structure or function. The presence of oil shale leachate had no effect on bioaccumulation or ecosystem structure or function. Nitrification in soil columns was enhanced by the presence of the organic fraction of oil shale leachate, but this effect was not observed when cadmium was present. Crop accumulation of cadmium was somewhat higher in alfalfa and radishes irrigated with leachate, but did …
Polycyclic Aromatic Hydrocarbons: Are They A Problem In Processed Oil Shales?, David L. Maase, V. Dean Adams
Polycyclic Aromatic Hydrocarbons: Are They A Problem In Processed Oil Shales?, David L. Maase, V. Dean Adams
Reports
Organic residues from processed oil shales were characterisized with specific attention to polycyclic aromatic hydrocarbons (PAH). Oil shale development in the White River Basin (Utah and Colorado) was projected and hydrological and geological parameters pertinent to estimations of polycyclic aromatic hydrocarbons (PAH) flux were focused. Oil shale samples from the Union B, Paraho, and Tosco II processes were extracted by using organic solvents in a soxhlet apparatus and by mixing shale samples with water (characterization in
The Probe, Issue 27 - December 1982
The Probe, Issue 27 - December 1982
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE National Animal Damage Control Association December, 1982
BROMETHALIN
Vampire bat-rabies problem on cattle in Latin America.
BIRDS CELEBRATE A SILENT FOURTH OF JULY
Problems with native deer on the exotic game preserve in connection with the Florida deer hunt fiasco.
PEST CONTROL magazine: Do Animals Have Rights?
Kitty Poo Cat Potty.
FUR HARVESTING AND PREDATOR CONTROL
LETTERS TO YE ED
RABIES
Variation Of Whole Body Components As An Indicator Of Habitat Quality In Geomys Bursarius And Peromyscus Maniculatus, Joseph W. Nietfeldt
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.
The Prairie Naturalist Volume 14, No. 4. December 1982
The Prairie Naturalist Volume 14, No. 4. December 1982
The Prairie Naturalist
THE MICROBIAL AND VEGETATIONAL RESPONSE TO FIRE IN THE LYNX PRAIRIE PRESERVE, ADAMS COUNTY, OHIO ▪ A. E. Annala and L. A. Kapustka
ASPECTS OF BEHAVIOR IN FREE-RANGING BARBARY SHEEP (AMMOTRAGUS LERVIA) G. G. Gray and C. D. Simpson
HOME RANGES OF MULE DEER BUCKS IN THE TEXAS PANHANDLE ▪ B. H. Koerth and F. C. Bryant
DETERMINING SEX OF PLAINS POCKET GOPHERS BY INCISOR WIDTH ▪ R. M. Case and A. B. Sargeant
BOOK REVIEWS:
On Counting Birds ▪ S. A. Mikol
Freshwater Marshes ▪ R. M. Kaminiski
NOTICE TO AUTHORS ▪ Editor
INDEX TO VOLUME 14 …
John Muir Newsletter, November/December 1982, Holt-Atherton Pacific Center For Western Studies
John Muir Newsletter, November/December 1982, Holt-Atherton Pacific Center For Western Studies
Muir Center Newsletters (1981-2015)
Holt-Atherton Pacific Center for Western Studies University of the Pacific Stockton, Calif 95211 VOLUME 2 NOVEMBER/DECEMBER 1982 NUMBER 4 EDITORIAL STAFF: RONALD H. LIMBAUGH, KIRSTEN E. LEWIS FUNDING UPDATE Christmas came in November for the John Muir Papers Microform Project. On November 16 we received word from Oakland, California, that the Muir Project had been awarded a $10,000 grant from the L.J. Skaggs and Mary C. Skaggs Foundation, a private agency which supports many environmental and educational activities. At the end of the month we received a call from N.H.P.R.C. headquarters in Washington, informing us that the Publications and Records …
The Probe, Issue 26 - November 1982
The Probe, Issue 26 - November 1982
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE National Animal Damage Control Association November, 1982
THE STATE OF THE UNION
Deer problem in the Everglades
Survey on mammal problems at airports
ENDRIN IN ORCHARDS
Rupert Beaver Farms (Heyburn, ID) had to declare bankruptcy as it was costing too much
Wildlife Legislative Fund of America (WLFA)
ERADICATE, SUPPRESS, DESTROY by Jim Doherty
A 14-year old boy herding his father's goats in Natal, South Africa was suddenly surrounded by a python.
Using donkeys to protect sheep from dogs and coyotes.
New Mexico Cattle Grower's Association
Preliminary trials of various commercial ultrasonic rodent repellent devices were unsuccessful.
OL' TIMER'S …
State Of The Fisheries Report 1981, Department Of Fisheries And Wildlife, Western Australia
State Of The Fisheries Report 1981, Department Of Fisheries And Wildlife, Western Australia
Status Reports of the Fisheries and Aquatic Resources
Western Australia continues to be one of the leading fishing States in Australia. The total gross value of fish, crustaceans and molluscs for 1980/81 was $82.8 million (Table 1) to which may be added the value of the pearl culture industry resulting in a total value of approximately $100 million.
Some Effects Of The Polychaete Nereis Succinea Frey And Leukart 1847 On The Distribution Of Copper Cadmium And Zinc In Sediments And Water, Gabriela Kitzig August
Some Effects Of The Polychaete Nereis Succinea Frey And Leukart 1847 On The Distribution Of Copper Cadmium And Zinc In Sediments And Water, Gabriela Kitzig August
OES Theses and Dissertations
Two laboratory experiments, each lasting 216 hours, were conducted in order to determine the effects of a burrowing polychaete, Nereis succinea Frey and Leukart, 1847, on the distribution of copper, cadmium, and zinc in sediments and water in environmentally controlled microcosms. Dissolved metal concentrations in microcosms containing worms (experimental) decreased more rapidly than in microcosms without worms (controls). From 72 hours to 216 hours, suspended metal concentrations in experimental microcosms increased while concentrations in controls remained relatively constant. Sediment cadmium concentrations in experimental microcosms increased more over time than in controls. Polychaetes accumulated significant amounts of all three metals. These …
The Probe, Issue 25 - September 1982
The Probe, Issue 25 - September 1982
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE National Animal Damage Control Association September, 1982
wolf recovery project
The Florida Game & Fresh Water Fish Commission announced plans to hold a hunt to reduce the Everglades deer herd
OUR THOUGHT FOR THE DAY FOR THE BALANCE OF NATURE WORSHIPERS
The Army has found albino rats are cheaper to rear and train than dogs and may be more effective in detecting TNT in booby traps, bombs, and land mines.
"Western Regional Coordinating Committee" concerned with predator control.
U.S. environmental Protection Agency (EPA)
S.B. #2239, the antitrap bill
RODENT CONTROL GETS THE AXE
nominations for the offices to …
The Probe, Issue 24 - August 1982
The Probe, Issue 24 - August 1982
The Probe: Newsletter of the National Animal Damage Control Association
Contents: 1080 Registration Hassle How to Write Your Congressman NADCA Predator Control Meeting Health Hazards from Pigeons, Starlings, and English Rats and Mice Methods of treating snake bite Recent Reading Materials Anti-Trap Bill – S.B. 2239 Permits to import or export wildlife Letters to the Editor Election Time
Impact Of Urban Stormwater Runoff On The Water Quality Of The Subsurface Lost River, Bowling Green, Kentucky, Donald Rice
Impact Of Urban Stormwater Runoff On The Water Quality Of The Subsurface Lost River, Bowling Green, Kentucky, Donald Rice
Masters Theses & Specialist Projects
Bowling Green, Kentucky is located in a distinctive karst region, characterized by subsurface drainage. The Lost River is a large subsurface stream which flows beneath the city. It receives much of the stormwater runoff from Bowling Green, since most of the city's runoff is directed underground. Significant pollutants in Bowling Green's stormwater runoff were identified from water quality test results of storm event grab samples, and a composite sample, of runoff entering the urban By-Pass Cave. Water quality test results were also obtained from storm event grab samples, and a composite sample, of the Lost River at the Blue Hole …
The Probe, Issue 23 - July 1982
The Probe, Issue 23 - July 1982
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE National Animal Damage Control Association July, 1982
increase in the price of duck stamp
list of chemicals Ray Matheny had reported at the California Vertebrate Pest Conference as being registered by the U.S. Environmental Protection Agency (EPA) for use in ADC
[U.S.Dept. of Health & Human Services, Centers for Disease Control, Annual Surnnany 1980
ANGEL ISLAND AGAIN
ANIMAL RIGHTS
Bird Dispersal Recordings – Sources of Supply. 1980 national Survey of Fishing, Hunting, and Wildlife Associated Recreation
AMERICA THE POISONED
Ol’ TIMER'S CORNER
WILDLIFE LEGISLATIVE FUND OF AMERICA
Make Sure That The New ESA Includes The Essential Common Sense …
Some Variations In Distribution Of Fishes In Large Mainstream Reservoirs Associated With Artificial Cover, Donald W. Johnson, Elizabeth M. Choinski
Some Variations In Distribution Of Fishes In Large Mainstream Reservoirs Associated With Artificial Cover, Donald W. Johnson, Elizabeth M. Choinski
KWRRI Research Reports
The influence of artificial cover (brush piles) on fish populations in Kentucky Lake and Lake Barkley was studied. Mature and larval fishes were collected from deep and shallow sites with and without cover in a bay of each lake. Highest densities of mature crappie, bass, and sauger were found adjacent to deep attractors, while larval crappie and minnows were most concentrated at shallow brush piles. Shad (both adult and larvae) were not congregated at attractor sites. Information gathered supports the continuation of artificial cover installation and water level management procedures which will provide high and stable levels through spring spawning …
Water Current, Volume 14, No. 4, July/August 1982
Water Current, Volume 14, No. 4, July/August 1982
Water Current Newsletter
Platte River Forum Develops Model
Update on Fed Funds
Pollution Manual Ready
Dee Creek Study Over
Farewells
Paper Wins ASAE Award
NU Manual Wins Award
Recharge Studied at Lake
ET Program Available
NWRC at Conference
Research Review: Improvement of Irrigation Scheduling Techniques for Corn With Variable Crop Maturity Range, Plant Population and Water Supply Availability.
The Effects Of Kepone On The Estuarine Copepod Acartia Tonsa, Judith Marie Wilson
The Effects Of Kepone On The Estuarine Copepod Acartia Tonsa, Judith Marie Wilson
Biological Sciences Theses & Dissertations
Due to the contamination of a 113 km reach of the James River, Kepone poses a serious environmental threat to the Chesapeake Bay. The purpose of the study is to determine the acutely toxic and sublethal levels of kepone for the copepod Acartia tonsa, and to investigate what effects those levels may have on filtration rates.
Kepone was determined to be acutely toxic to A. tonsa, with a 96 hour LC50 of 4.96 ug/1. Dunaliella tertiolecta was selected as the food source for the grazing experiments. Kepone concentrations of 0.046 ug/1 significantly (0.05 level) reduced the flltering rate …
The Sale, Lease Or Exchange Of Indian Water Rights For Energy Development, Thomas W. Fredericks
The Sale, Lease Or Exchange Of Indian Water Rights For Energy Development, Thomas W. Fredericks
New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)
34 pages.
Contains references.
Weather Resources Management And Interbasin Transfer Law [Outline], Ray Jay Davis
Weather Resources Management And Interbasin Transfer Law [Outline], Ray Jay Davis
New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10)
21 pages (includes illustrations).