Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (20070)
- Physical Sciences and Mathematics (10566)
- Environmental Sciences (7165)
- Animal Sciences (4927)
- Plant Sciences (4610)
-
- Ecology and Evolutionary Biology (4398)
- Engineering (4198)
- Education (3781)
- Social and Behavioral Sciences (3667)
- Entomology (3153)
- Medicine and Health Sciences (3063)
- Agriculture (2899)
- Natural Resources and Conservation (2804)
- Biodiversity (2381)
- Other Environmental Sciences (2311)
- Natural Resources Management and Policy (2075)
- Arts and Humanities (2025)
- Agricultural Science (1946)
- Plant Biology (1879)
- Terrestrial and Aquatic Ecology (1872)
- Science and Mathematics Education (1819)
- Botany (1747)
- Other Plant Sciences (1706)
- Mechanical Engineering (1662)
- Immunology and Infectious Disease (1645)
- Zoology (1600)
- Population Biology (1536)
- Other Mechanical Engineering (1528)
- History (1453)
- Agronomy and Crop Sciences (1448)
- Keyword
-
- Nebraska (408)
- Taxonomy (332)
- Invasive species (267)
- Agriculture (188)
- Management (171)
-
- Climate change (159)
- Biodiversity (157)
- Corn (150)
- Distribution (145)
- Grus americana (143)
- Water quality (142)
- Maize (139)
- Conservation (129)
- Water (120)
- Soybean (118)
- Migration (117)
- Reproduction (117)
- Drought (116)
- New species (115)
- Predation (115)
- Cattle (113)
- Florida (109)
- Biological control (106)
- Grus canadensis (106)
- Sus scrofa (106)
- Extension circular (105)
- Remote sensing (105)
- Birds (103)
- Ecology (103)
- Nitrogen (101)
- Publication Year
- Publication
-
- United States Department of Agriculture Wildlife Services: Staff Publications (2163)
- United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications (1543)
- Nebraska Tractor Tests (1347)
- Department of Agronomy and Horticulture: Faculty Publications (1249)
- Insecta Mundi (1227)
-
- School of Natural Resources: Faculty Publications (1018)
- School of Biological Sciences: Faculty Publications (982)
- Department of Agricultural and Biological Systems Engineering: Faculty Publications (839)
- Department of Entomology: Faculty Publications (773)
- United States Geological Survey: Staff Publications (723)
- Harold W. Manter Laboratory of Parasitology: Faculty Publications (650)
- Department of Biochemistry: Faculty Publications (618)
- Department of Plant Pathology: Faculty Publications (601)
- Department of Animal Science: Faculty Publications (571)
- The Prairie Naturalist (491)
- Nebraska Center for Virology: Faculty Publications (477)
- United States Department of Commerce: Staff Publications (433)
- Proceedings of the North American Crane Workshop (422)
- School of Veterinary and Biomedical Sciences: Faculty Publications (417)
- Department of Psychology: Faculty Publications (411)
- United States Geological Survey, Northern Prairie Wildlife Research Center: Publications (380)
- United States Fish and Wildlife Service: Publications (367)
- Great Plains Research: A Journal of Natural and Social Sciences (through 2013) (361)
- Nebraska Bird Review (360)
- Department of Food Science and Technology: Faculty Publications (350)
- Transactions of the Nebraska Academy of Sciences and Affiliated Societies (345)
- University of Nebraska-Lincoln Extension: Historical Materials (345)
- United States Public Health Resources (296)
- United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications (295)
- Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications (268)
- Publication Type
- File Type
Articles 39691 - 39720 of 40083
Full-Text Articles in Entire DC Network
Nebraska Bird Review (July-December 1948) 16(2b), Whole Issue
Nebraska Bird Review (July-December 1948) 16(2b), Whole Issue
Nebraska Bird Review
Contents of Volume 16
Number 1
Birds of the Stapleton Area of Nebraska Mr. and Mrs. Earl W. Glandon .............1
Nesting of the Double-crested Cormorant in Nebraska Mrs. Carl N. Collister.............22
Christmas Bird Censuses Adrian C. Fax.............27
Observations on Same Eastern Montana Birds Wm. Youngworth …………38
General Notes …………51
Minutes of the Forty-seventh Annual Meeting …………57
Report of the Forty-fourth Annual Field Day …………63
Announcements …………65
News and Comment …………67
Book Review …………69
Obituary …………70
Nebraska Bird Review (July-December 1948) 16(2a), Whole Issue.
Nebraska Bird Review (July-December 1948) 16(2a), Whole Issue.
Nebraska Bird Review
Contents
Migration Observers Wanted...........Chandler S. Robbins 72
Recent Changes in Nomenclature of Nebraska Birds...R. Allyn Moser 74
The Omaha Meeting of the American Ornithologists' Union...........75
Nebraska Birds in the G. D. Swezey Cabinet of Natural History at Doane College....William F. Rapp, Jr. 76
The 1948 Spring Season in the Crete Area............Rosetta A. Grefe 80
N.O.U. Co-operative Bird Migration and Occurrence List for the First Half of 1948............83
Obituary............91
General Notes............92
Announcements............96
Book Reviews............82, 98
A Contribution To The Study Of Certain Avian Strigeids (Trematoda), Asa C. Chandler, Robert L. Rausch
A Contribution To The Study Of Certain Avian Strigeids (Trematoda), Asa C. Chandler, Robert L. Rausch
Harold W. Manter Laboratory of Parasitology: Faculty Publications
The examination of more than 200 species of birds by Rausch during the past few years, has disclosed a number of interesting strigeids, some of which are considered in the present paper. Three species appear to be undescribed and two of these are of particular interest in that they occur in passeriform birds, a group rarely parasitized by strigeids. In addition to the descriptions of the new species, remarks concerning Hysteromorpha triloba (Rudolphi, 1819) are included.
Synoptic Revision Of The United States Scarab Beetles Of The Subfamily Dynastinae, No. 4: Tribes Oryctini (Part), Dynastini, And Phileurini, Lawrence W. Saylor
Synoptic Revision Of The United States Scarab Beetles Of The Subfamily Dynastinae, No. 4: Tribes Oryctini (Part), Dynastini, And Phileurini, Lawrence W. Saylor
Entomology Papers from Other Sources
This paper is the fourth in the series of my United States dynastine scarab beetle studies and completes the specific listings and notes. The fifth, and last, part will include a complete classification of the tribes and genera, from the Nearctic standpoint.
Genus Aphonus LeConte
Tribe DYNASTINI -- Genus Dynastes Kirby, Genus Megasoma Kirb
Tribe PHILEURINI -- Genus Archopbileurus Kolbe, Genus Phileurus Latreille
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 …
A New Sciurid Of Blancan Age From Kansas And Nebraska, Claude W. Hibbard
A New Sciurid Of Blancan Age From Kansas And Nebraska, Claude W. Hibbard
Bulletin of the University of Nebraska State Museum (1924–2023)
The collecting of vetebrate fossils from deposits of Blancan age in Kansas, Nebraska, and Texas during the past twelve years has revealed many interesting forms. Some species have been found to have wide geographic distribution. A large sciurid related to the woodchucks has been recognized from both Kansas and Nebraska and is here described as a new genus and species.
Nebraska Bird Review (January-June 1948) 16(1), Whole Issue.
Nebraska Bird Review (January-June 1948) 16(1), Whole Issue.
Nebraska Bird Review
CONTENTS
Birds of the Stapleton Area of Nebraska
Mr. and Mrs. Earl W. Glandon...............1
Nesting of the Double-crested Cormorant in Nebraska
Mrs. Carl N. Collister..............22
Christmas Bird Censuses..............Adrian C. Fox 27
Observations on some Eastern Montana Birds....Wm. Youngworth 38
General Notes..............51
Minutes of the Forty-Seventh Annual Meeting..............57
Report of the Forty-Fourth Annual Field Day ..............63
Announcements ..............65
News and Comment ..............67
Book Review.............. 69
Obituary..............70
Life Histories Of North American Nuthatches, Wrens, Thrashers And Their Allies: Order Passeriformes, Arthur Cleveland Bent
Life Histories Of North American Nuthatches, Wrens, Thrashers And Their Allies: Order Passeriformes, Arthur Cleveland Bent
Papers in Ornithology
An attempt has been made to give as full a life history as possible of the best-known subspecies of each species and to avoid duplication by writing briefly of the others and giving only the characters of the subspecies, its range, and any -habits peculiar to it. In many cases certain habits, probably common to the species as a whole, have been recorded for only one subspecies. Such habits are mentioned under the subspecies on which the observations were made. The distribution gives the range of the species as a whole, with only rough outlines of the ranges of the …
Microbiology Of Soil, Nathan Wakefield
Microbiology Of Soil, Nathan Wakefield
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The discovery that certain microorganisms isolated from soil could produce antibiotics when grown in pure cultures in the lab oratory has served to focus attention as never before on the subject of soil microbiology. The main emphasis, however, is on problems entirely unrelated to the processes which go on in the soil. The fact that an organism was isolated from soil and then used in medicine, fermentations, or some such way, does not bring such work in the actual field of soil microbiology. Practically all except the more fastidious animal and plant pathogens can be found in the soil at …
A Preliminary Study Of A Physical Basis Of Bird Navigation, Henry L. Yeagley
A Preliminary Study Of A Physical Basis Of Bird Navigation, Henry L. Yeagley
Papers in Ornithology
The bird navigation theory as presented implies an organ or organs in the bird's physiology which are sensitive to the effect of its motion through the vertical component of the earth's magnetic field and to the effort exerted to overcome the coriolis force, due to the earth's rotation. Both these influences involve a set of lines which together form a navigational gridwork. By correlating its instantaneous land speed with the two above effects, a bird can fly to its home which is a unique point in this gridwork, or to related companion points existing in the gridwork at positions other …
The Digenetic Trematodes Of Marine Fishes Of Tortugas, Florida, Harold W. Manter
The Digenetic Trematodes Of Marine Fishes Of Tortugas, Florida, Harold W. Manter
Harold W. Manter Laboratory of Parasitology: Library Materials
189 species of digenetic trematodes are reported from teleost fishes of the region of Tortugas, Florida. Among these are recognized: 44 new species, 9 new genera, 44 new combinations, 14 new synonyms, and 51 new host records. Several genera and species are considered synonyms of those previously named.
Of 237 species (approximately 2,039 specimens) of teleost fishes examined, 182 species or 76.8% were parasitized by adult, digenetic trematodes. Most of the host species harbored from one to three species of trematodes; 79 (or 43.4% of the 182) had a single species of trematode. Two fishes, however, were each susceptible to …
Nebraska Bird Review (July-December 1947) 15(2), Whole Issue
Nebraska Bird Review (July-December 1947) 15(2), Whole Issue
Nebraska Bird Review
Contents
Bird Departure Dates .........Wilson Tout 1
Recent Changes in Nomenclature and Subspecific Status of Nebraska Birds .........F.W. Haecker 5
"Drumming" in the Chimney Swift .........W.E. Eigsti 9
Banding Mourning Doves in Eastern Nebraska.........Wilhelmina and Leroy Gulotta 12
Hawk Populations in Nebraska......... John H. Wampole 20
Winter Birds of the Fontenelle Forest......... Charles A. Stewart 24
Notes on the Nesting of the Acadian and Alder Flycatchers......... Frank H. Shoemaker ......... 31
N.O.U. Cooperative Bird Migration and Occurrence List for First Half of 1947......... 36
General Notes......... 40
Nebraska Bird Club News......... Adrian C. Fox......... 55
Announcements......... 60
News and Comment......... …
Riboflavin Production By Molds, George L. Peltier, Raymond Borchers
Riboflavin Production By Molds, George L. Peltier, Raymond Borchers
Papers in Microbiology
Very little information is at hand regarding the ability of molds to synthesize riboflavin. Few citations pertaining directly to riboflavin production by true molds are available.2 Pontovich (1943) found as much as 2 mg riboflavin per g of Aspergillus flavus mycelium. Tanner et at. (1945) determined the quantity of riboflavin in the submerged fermentation media of Penicillium chrysogenum. The highest value found was 1. 36 mg per ml. The primary purpose of this study was to screen several hundred isolates, recently obtained from soil, crop residues, and composts, for their ability to produce riboflavin on a wheat bran substrate.
Chincoteague: A National Wildlife Refuge, Rachel Carson
Chincoteague: A National Wildlife Refuge, Rachel Carson
United States Fish and Wildlife Service: Publications
The national wildlife refuge at Chincoteague, Virginia, is one of the newest in a chain of sanctuaries placed along the flight lanes of the waterfowl. Coming down from the north the principal links of the chain are Parker River, Montezuma, Susquehanna, Brigantine, and Bombay Hook. Then from Chincoteague the links run south, through Back Bay and Pea Island, Mattamuskeet and Cape Romain. Chincoteague, like other waterfowl refuges, is needed because birds migrate, and because in so doing they expose themselves to great dangers.
The migration of birds is one of the ancient spectacles of earth, and one of the most …
Parker River: A National Wildlife Refuge, Rachel Carson
Parker River: A National Wildlife Refuge, Rachel Carson
United States Fish and Wildlife Service: Publications
The Parker River National Wildlife Refuge is New England's most important contribution to the national effort to save the waterfowl of North America. Many million Americans have a direct stake in the success of this effort: the 2,000,00o waterfowl hunters, the millions who find recreation and esthetic pleasure in observing and photographing the birds, and all those, whom there is no way of counting, who understand the value of preserving wildlife as part of America's natural heritage.
During the several generations in which the United States has been converted from a land preeminently wild and unsettled into an industrial and …
Bulletin 388, Nebraska Tractor Tests 1920–1947, 1948
Bulletin 388, Nebraska Tractor Tests 1920–1947, 1948
University of Nebraska Historical Extension: Bulletin
Bulletin 388, Nebraska Tractor Tests 1920–1947, 1948
The Goss Lemming Mouse, Synaptomys Cooperi Gossii (Goues), In Nebraska, Edson Fichter, Merle F. Hansen
The Goss Lemming Mouse, Synaptomys Cooperi Gossii (Goues), In Nebraska, Edson Fichter, Merle F. Hansen
Bulletin of the University of Nebraska State Museum (1924–2023)
In the course of studies on the cestode parasites of microtine rodents by one of the authors (Hansen), specimens of mice were sent to the United State National Museum where they were identified by Dr. David H. Johnson. Two of these microtines proved to be Synaptomys cooperi gossii (Coues). These specimens of Synaptomys (U.S.N.M. Nos. 282343 and 282344), collected at Lincoln, Lancaster County, Nebraska, on September 16, 1946 (male) and November 20, 1946 (female), respectively, are the first ones to be identified from Nebraska.
Farm Fishponds, Verne E. Davison
Farm Fishponds, Verne E. Davison
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
An important part of soil and moisture conservation is making the best use of every acre on the farm. Where a suitable site for a farm pond exists, no better use can be made of such land than to develop it for the production of fish for the farm family. The recreation the pond affords adds much to the pleasure of rural life.
Thousands of farms have good pond sites. Properly developed and managed ponds may provide both food and pleasure to more than a million farm people.
This bulletin tells how to have good ponds. It explains how to …
Riboflavin Production By Molds, George L. Peltier, Raymond Borchers
Riboflavin Production By Molds, George L. Peltier, Raymond Borchers
Department of Biochemistry: Faculty Publications
Very little information is at hand regarding the ability of molds to synthesize riboflavin. Few citations pertaining directly to riboflavin production by true
molds are available. Pontovich (1943) found as much as 2 mg riboflavin per g
of Aspergillus flavus mycelium. Tanner et at. (1945) determined the quantity of
riboflavin in the submerged fermentation media of Penicillium chrysogenum.
The highest value found was 1. 36 mg per ml. The primary purpose of this study
was to screen several hundred isolates, recently obtained from soil, crop residues,
and composts, for their ability to produce riboflavin on a wheat bran substrate.
The Geologic History Of The Bison In The Great Plains (A Preliminary Report), C. Bertrand Schultz, W. D. Frankforter
The Geologic History Of The Bison In The Great Plains (A Preliminary Report), C. Bertrand Schultz, W. D. Frankforter
Bulletin of the University of Nebraska State Museum (1924–2023)
THE GEOLOGIC history of the bison in North America is a subject which has received little attention to date. Osteological rather than geological problems have been the main concern of most writers who have so far published. If the geologic history of the bison is to be learned, it will be necessary to devote more time and effort in the field in determining the age of the deposits in which various specimens have been discovered and in making more extensive collections from deposits of known age. Unfortunately the majority of the type specimens have been surface finds and little attempt …
Pollination Cycles And Pollen Dispersal In Relation To Grass Improvement, Melvin D. Jones, L. C. Newell
Pollination Cycles And Pollen Dispersal In Relation To Grass Improvement, Melvin D. Jones, L. C. Newell
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The plant breeder is initially concerned with gaining a knowledge of the breeding behavior of his plant materials in order that improvement may be undertaken effectively. It is important to know the different characteristic pollination habits of these plants. To develop and apply techniques applicable to the improvement of a given grass crop, it is desirable to know the time of day and the number of days that the grass sheds pollen. The effects of temperature, humidity, light, and wind on pollination must be considered. Once superiority of germplasm is obtained, the most important consideration is the maintenance of this …
Pig Typhus (Salmonellosis Suis), L. Van Es
Pig Typhus (Salmonellosis Suis), L. Van Es
Nebraska Agricultural Experiment Station: Historical Research Bulletins
Salmonellosis suis or pig typhus, also designated as pig typhoid, infectious necrotic enteritis, or "necro," is an infectious disease among young pigs. It constitutes a major factor in the mortality of juvenile swine, and as such must be regarded as a more or less perennial hazard in swine production. Infectious necrotic enteritis caused by Salmonella suipestifer is the subject of the present publication.
59th Annual Report Of The Agricultural Experiment Station June 1946, W.W. Burr
59th Annual Report Of The Agricultural Experiment Station June 1946, W.W. Burr
Agricultural Research Division: News and Annual Reports
Contents
Cover picture-Potato Field and Scotts Bluff. Photograph provided through courtesy of C.B.&Q. Railroad Co .
Soils Research................... 5-14
Field Crops Research ................... 15-38
Horticultural Crops................... 39-46
Plant Diseases................... 47-51
Chemical Studies With Plant Materials................... 52-54
Insects and Rodents................... 55-64
Feeding Hogs, Cattle and. Sheep ................... 65-73
Dairy Production and Manufacture ................... 74-78
Poultry Nutrition and Management................... 79-82
Animal Diseases ................... 83-86
Agricultural Engineering ................... 87-90
Studies in Rural Economics ................... 91-95
Home Economics ................... 96-97
Valentine Substation ................... 98-99
Box Butte Experiment Farm................... 99-100
Scotts Bluff Substation................... 101-104
North Platte Substation ................... 105-110
Experiment Station Publications During 1945 ................... …
The Relation Between Metabolism And Potassium Cyanide Inhibition In Pelomyxa Carolinensis, Tatsuru Eugene Kimura
The Relation Between Metabolism And Potassium Cyanide Inhibition In Pelomyxa Carolinensis, Tatsuru Eugene Kimura
Open Access Master's Theses (through 2010)
1. Introductlon ( Respiratory System)
2. Introduction ( Protozoan Experiments)
3. Materials and Method
a . Experimental Organism
b. Barcroft-Warburg Micro-respirometer
c. Manometric Calibration
4 . Results
a . The Effect ot Temperature
b. The Effect of Potassium Cyanlde
5 . Discussion
6. Summary
7. Bibliography
The thesis investigates the following problems: (1) whether or not there is any correlation between temperature change and respiratory quotient, (2) whether or not respiratory inhibition by cyanides is influenced by temperature, and (3) whether or not the cytochrome-cytochrome oxidase type of respiratory system is concerned chiefly with carbohydrate metabolism in Pelomyxa carolinensis.
Morphology Of A New Species Of Bat Cestode, Hymenolepis Roudabushi, And A Note On Hymenolepis Christensoni Macy, Ralph W. Macy, Robert L. Rausch
Morphology Of A New Species Of Bat Cestode, Hymenolepis Roudabushi, And A Note On Hymenolepis Christensoni Macy, Ralph W. Macy, Robert L. Rausch
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Examination of material of a species of Hymenolepis collected by Rausch from several species of bats taken near Marysville, Ohio, revealed that it was new. A series of specimens of the same species was collected in 1942 at Ames, Iowa, by Dr. Robert Roudabush. The new species, Hymenolepis roudabushi, is described.
Influence Of Food Plants On Fecundity, Larval Development And Abundance Of The Tuber Flea Beetle In Nebraska, Roscoe E. Hill
Influence Of Food Plants On Fecundity, Larval Development And Abundance Of The Tuber Flea Beetle In Nebraska, Roscoe E. Hill
Nebraska Agricultural Experiment Station: Historical Research Bulletins
Laboratory and field tests were conducted to determine the effects of different food plants on fecundity, adult longevity and larval development of the tuber flea beetle, Epitrix tuberis Gentner. All food plants tested were those upon which the overwintered beetles commonly feed in the spring following emergence from hibernation.
Synoptic Revision Of The United States Scarab Beetles Of The Subfamily Dynastinae, No. 3: Tribe Oryctini (Part), Lawrence Saylor
Synoptic Revision Of The United States Scarab Beetles Of The Subfamily Dynastinae, No. 3: Tribe Oryctini (Part), Lawrence Saylor
Entomology Papers from Other Sources
This paper is the third in the series covering the United States dynastine scarab beetles and includes the four genera differentiated in the following key:
1. Apex clypeus acute and definitely bidentate, the teeth often worn and nearly obsolete. Apex clypeus acute, either sharply or bluntly so, but never bidentate. Mandibles definitely tridentate externally, the basal tooth often worn and barely visible; thorax not more than two-thirds the length of the elytra; color rufous to rufocastaneous or rufopiceous = Ligyrus Burmeister
2. Mandibles bidentate externally (caution: examine from below and laterally to avoid counting the lacinia teeth as third teeth …
Research Bulletin 143, Influence Of Food Plants On Fecundity, Larval Development And Abundance Of The Tuber Flea Beetle In Nebraska, 1946
University of Nebraska Historical Extension: Bulletin
Research Bulletin 143, Influence of Food Plants on Fecundity, Larval Development and Abundance of the Tuber Flea Beetle in Nebraska, 1946
Research Bulletin 147, Pig Typhus - Salmonellosis Suis, 1946
Research Bulletin 147, Pig Typhus - Salmonellosis Suis, 1946
University of Nebraska Historical Extension: Bulletin
Research Bulletin 147, Pig Typhus - Salmonellosis Suis, 1946
Nebraska Bird Review (January-June 1946) 14(1), Whole Issue.
Nebraska Bird Review (January-June 1946) 14(1), Whole Issue.
Nebraska Bird Review
Contents
The Genus Junco in Nebraska, By R. Allyn Moser ...................... 1
Cooperation in Upland Game Bird Research,
By Levi L. Mohler ........................................ 7
Notes on Birds of Great Britain, by Ralph Velich ........................ 10
Minutes of the Forty-Fifth Annual Meeting ................................ 13
Report of the Forty-Second Annual Field Day ............................ 18
General Notes ................................................................. 19
Book Review ................................................................... 23
Announcements ...................................................................... 24
Obituaries ..................................................... 27