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Terrestrial and Aquatic Ecology

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Articles 2881 - 2901 of 2901

Full-Text Articles in Animal Sciences

Studies On The Planktonic Protozoa And Other Microbiota Of A Eutrophic Lake, Neil Howard Chance Jan 1968

Studies On The Planktonic Protozoa And Other Microbiota Of A Eutrophic Lake, Neil Howard Chance

Masters Theses

No abstract provided.


Subspecies And Ecology Of Meadowlarks In Northwest Arkansas, Robert Lowery, Earl L. Hanebrink Jan 1967

Subspecies And Ecology Of Meadowlarks In Northwest Arkansas, Robert Lowery, Earl L. Hanebrink

Journal of the Arkansas Academy of Science

No abstract provided.


Growth Rates At Various Temperatures Of The Orange-Throat Darter Etheostoma Spectabile (Agassiz), Boyce W. West Jan 1966

Growth Rates At Various Temperatures Of The Orange-Throat Darter Etheostoma Spectabile (Agassiz), Boyce W. West

Journal of the Arkansas Academy of Science

No abstract provided.


Heat Resistance Experiments With The Longear Sunfish, Lepomis Megalotis (Rafinesque), William H. Neill, Kirk Strawn, James E. Dunn Jan 1966

Heat Resistance Experiments With The Longear Sunfish, Lepomis Megalotis (Rafinesque), William H. Neill, Kirk Strawn, James E. Dunn

Journal of the Arkansas Academy of Science

No abstract provided.


Factors Affecting Nesting Success Of The Canvasback In The Aspen Parklands, Jerome H. Stoudt Dec 1965

Factors Affecting Nesting Success Of The Canvasback In The Aspen Parklands, Jerome H. Stoudt

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

The Minnedosa study area is located in the southwestern portion of Manitoba just south of the town of Minnedosa. It is 90 square miles in size and roughly square in shape. The Aspen Parkland, in which the study area is located, is characterized by gently rolling terrain and black soils. Mixed farming is the rule with emphasis on small grain production consisting of wheat, barley, and oats. Roughly 50 percent of the water areas in the parkland are ringed with aspen, Populus tremuloides, and large blocks of aspen are interspersed throughout the area. The Minnedosa area differs because of …


Review Of Echinococcus Species In South Africa, Anna Johanna Maria Verster Jan 1965

Review Of Echinococcus Species In South Africa, Anna Johanna Maria Verster

Harold W. Manter Laboratory of Parasitology: Faculty Publications

1. The nominate subspecies of E. granulosus (Batsch, 1786) is redesignated from the type locality, Europe.

2. Five subspecies of E. granulosus are described from South African carnivores: E. g. granulosus, E. g. africanus, E. g. felidis, E. g. lycaontis and E. g. ortleppi.

3. E. g. granulosus has so far only been recovered from the Transvaal; E. g. ortleppi appears to be restricted to the Transvaal; E. g. africanus occurs in the Orange Free State and the Transvaal; E. g. lycaontis and E. g. felidis like their definitive hosts are restricted to the Transvaal.

4. …


Distribution And Taxonomy Of Mammals Of Nebraska, J. Knox Jones Jr Jan 1964

Distribution And Taxonomy Of Mammals Of Nebraska, J. Knox Jones Jr

Nebraskiana Publications: Resources and Materials on the 37th State

Contents

Introduction

Environment

Climate

Soils

Geology and Physiography

Vegetation

Effects of Man on The Envmonment

Factors Influencing Distribution And Speciation

Wisconsin Glaciation And Post-Wisconsin Climates

Emigration of Recent Mammals To Nebraska

Some Effects of The Environment

The Missouri River as a Barrier to Dispersal

Geographic Varlatlon and Speciation

Mammalian Distributional Areas

Summary

Treatment and Acknowledgments

Checklist (with page references) of Mammals of Nebraska

Accounts of Species

Introduced Mammals

Species of Unverified occurrence

Type Localities

Literature Cited

● Order MARSUPIALIA-Marsupials ● ● Family DIDELPHIDAE-Opossums ● Didelphis marsupialis virginiana Kerr (Opossum) ● Order INSECTIVORA-Insectivores ● Family SORICIDAE-Shrews ● Sorex cinereus haydeni Baird …


Problem Of The Hybridization Of The Red Cave Salamander, Eurycea Lucifuga (Raf), And The Long-Tailed Salamander, Eurycea Longicauda Melanopleura (Green), Charles C. Smith Jan 1964

Problem Of The Hybridization Of The Red Cave Salamander, Eurycea Lucifuga (Raf), And The Long-Tailed Salamander, Eurycea Longicauda Melanopleura (Green), Charles C. Smith

Journal of the Arkansas Academy of Science

No abstract provided.


Seasonal Occurrences Of Arkansas Birds, Douglas A. James, Frances C. James Jan 1964

Seasonal Occurrences Of Arkansas Birds, Douglas A. James, Frances C. James

Journal of the Arkansas Academy of Science

No abstract provided.


Preliminary Report: Monolayer Behavior Studies, 1959, Bureau Of Reclamation Jan 1960

Preliminary Report: Monolayer Behavior Studies, 1959, Bureau Of Reclamation

Publications (WR)

During the fall of 1959, monolayer behavior studies were made on two lakes in the southwest; Boulder Basin of Lake Mead, Nevada, and Lake Sahuaro near Phoenix, Arizona. These studies were made to evaluate the effect of geographical and climatological conditions on movement and behavior of monolayers. The Lake Sahuaro tests also were used to provide data for design and development of improved methods of application and maintenance of a film on this lake in anticipation of full scale, evaporation-reduction tests to be performed there during the summer of I960. The Lake Mead studies produced the following general points of …


Some Recent Findings Concerning The Avifauna Of Arkansas, Douglas A. James Jan 1960

Some Recent Findings Concerning The Avifauna Of Arkansas, Douglas A. James

Journal of the Arkansas Academy of Science

No abstract provided.


Notes On The Salamanders Of Arkansas #2 The Status Of Desmognathus In Arkansas, Charles C. Smith Jan 1960

Notes On The Salamanders Of Arkansas #2 The Status Of Desmognathus In Arkansas, Charles C. Smith

Journal of the Arkansas Academy of Science

No abstract provided.


Malaysian Parasites Xxxv-Xlix, W. W. Macdonald Jan 1960

Malaysian Parasites Xxxv-Xlix, W. W. Macdonald

Harold W. Manter Laboratory of Parasitology: Faculty Publications

This is the third Study of the series from this Institute on the external and internal parasites and the biting insects of the Malaysian region. The earlier two volumes were planned and edited by Dr. J.R. Audy, and on his departure from Malaya in the middle of 1959 Mr. W. W. Macdonald continued the work which had been begun and collated and edited the papers in this present Study.

In the two previous volumes (Study No. 26, 1954 and No. 28, 1957) the emphasis was on the taxonomy of Trombiculid mites. In the present volume the emphasis has changed, and …


Notes On Scottsbluff, Nebraska, Tornadoes, 27 June 1955, Robert G. Beebe Mar 1959

Notes On Scottsbluff, Nebraska, Tornadoes, 27 June 1955, Robert G. Beebe

National Oceanographic and Atmospheric Administration: Technical Reports and Related Materials

Some general characteristics of thirteen tornadoes that occurred on the afternoon of June 27, 1955 in Scottsbluff County, Nebraska, are related. Two of these caused widespread attention due to their size and their proximity to the cities of Scottsbluff and Mitchell, Nebraska. These two were photographed extensively by residents near their paths. The experience of two men directly beneath one of the two large tornadoes is related.


Field Techniques For Sexing And Aging Game Animals, Donald R. Thompson Jan 1958

Field Techniques For Sexing And Aging Game Animals, Donald R. Thompson

Nebraska Game and Parks Commission: Publications

The purpose of this booklet is to provide a ready field reference for identification, sexing and aging of common game species. It has purposely been kept in simplified form, presenting only those techniques which can commonly be applied in the field and avoiding those which would require special equipment and skills. Untrained personnel should be given demonstrations of the techniques, and thereafter this reference should serve as a reminder. It is not expected that the reference could successfully be used without such demonstration. Certain of the techniques such as cloaca! examination of waterfowl may require considerable practice by the individual. …


Nebraska Deer, William Bailey Jr., George Schildman, Phillip Agee, C. G. Pritchard Jan 1957

Nebraska Deer, William Bailey Jr., George Schildman, Phillip Agee, C. G. Pritchard

Nebraska Game and Parks Commission: Publications

IN COMMON with the experience of most states, Nebraska's deer herds were reduced to a very low level by excessive harvests in our early history. Most American big-game animals were overharvested in the early history of this nation because of commercialization. Buffalo were killed for their hides, deer for their meat. This slaughter continued as long as the hunter (or poacher) could sell his take at a profit. Modem game management and public opinion reversed this trend. Deer are on the way back all over America, and in some states the protection-complex was so strong that deer were restored to …


Nebraska Deer, William Bailey Jr., George Schildman, Phillip Agee, C. G. Pritchard Jan 1957

Nebraska Deer, William Bailey Jr., George Schildman, Phillip Agee, C. G. Pritchard

Nebraska Game and Parks Commission: Publications

IN COMMON with the experience of most states, Nebraska's deer herds were reduced to a very low level by excessive harvests in our early history. Most American big-game animals were overharvested in the early history of this nation because of commercialization. Buffalo were killed for their hides, deer for their meat. This slaughter continued as long as the hunter (or poacher) could sell his take at a profit. Modem game management and public opinion reversed this trend. Deer are on the way back all over America, and in some states the protection-complex was so strong that deer were restored to …


A List Of Cestode Parasites From California Mammals, Marietta Voge Oct 1955

A List Of Cestode Parasites From California Mammals, Marietta Voge

Harold W. Manter Laboratory of Parasitology: Faculty Publications

This report brings together information on the occurrence and distribution of cestode parasites in California mammals. The original information reported herein, was obtained by students, myself, and other staff members of this university. Although the host-parasite list which follows is far from complete, the dearth of knowledge about the helminth fauna in California seems to justify the publication of relatively few data, in the hope that other workers will be able to use this list as a starting point and add to it.

With few exceptions, the common names of the hosts, as given in the host list, were obtained …


Life Histories Of North American Nuthatches, Wrens, Thrashers And Their Allies: Order Passeriformes, Arthur Cleveland Bent Jan 1948

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 …


The Raccoon, A New Host For Microphallus Sp., With Additional Notes On M. Ovatus From Turtles, Robert L. Rausch Jan 1946

The Raccoon, A New Host For Microphallus Sp., With Additional Notes On M. Ovatus From Turtles, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Discusses the raccoon, a new host for Microphallus sp., with additional notes on M. ovatus from turtles.


A New Method For The Quantitative Determination Of Plankton Hauls, Henry B. Ward Aug 1895

A New Method For The Quantitative Determination Of Plankton Hauls, Henry B. Ward

Studies from the University of Nebraska Zoological Laboratory

Only two methods of estimating the quantity of plankton obtained in a haul of the vertical net are known to me. These two may be called the volumetric and the gravimetric. Both have been used by observers in various parts of the world, but so far as I know have never been comparatively tested in order to ascertain the relative value of results obtained by the two. The experience of the past year has shown some disadvantages in the first method, while the second has certain evident objections which rendered its employment in this case out of the question. In …