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Some Putative Mandarin Duck Hybrids, Paul A. Johnsgard

Paul Johnsgard Collection

Prestwich (1960) and Gray (1958) have concluded, mirroring Delacour and Mayr (1945) and Seth-Smith (1922), that the Mandarin Duck is unable to hybridize, even with its nearest living relative the Wood Duck. After reviewing the literature, however, I listed (1960) the Mandarin Duck as having probably hybridized with the Wood Duck, and also mentioned the possibility of hybridization with one or more species of Anas. Since then I have been hopeful that actual specimens of Mandarin Duck hybrids might be located to substantiate this vulnerable position, and it is now possible to report on some probable hybrids.

Notes On Spotted Skunks (Genus Spilogale) From Western Mexico, Hugh H. Genoways, J. Knox Jones Jr.

University of Nebraska State Museum: Mammalogy Papers

Specimens of spotted skunks acquired from western Mexico by the Museum of Natural History at the University of Kansas in the past two decades add substantially to the knowledge of the species occurring in that region. Two specimens of the rare Spilogale pygmaea (one from Sinaloa and one from Oaxaca) are reported for the first time. Two subspecies of pygmy spotted skunk are recognized - S. p. pygmaea Thomas with type locality at Rosario, Sinaloa, and S. p. australis Hall with type locality at Acapulco, Guerrero.

The large spotted skunk, Spilogalepusorius, varies clinally in size form north (larger) to …

Reviews Of Glenn L. Hoffman (1967). Parasites Of North American Freshwater Fishes., John Paling

United States Fish and Wildlife Service: Publications

'This manual', the author explains, 'is intended to be an aid to the identification of the freshwater fish parasites of North America'. Judged by this objective, the book will be an invaluable source of reference for workers in this field. However as it does not set out to cover the ecology of fish parasites and furthermore as it concerns itself mainly with the American fauna, this book will probably have only a limited appeal to readers of this Journal.

Review Of Parasitology: Parasites Of North American Freshwater Fishes, Brother George Paul

United States Fish and Wildlife Service: Publications

This book is intended to serve as a manual for aiding in the identification of the freshwater fish parasites of North America. To this end an extensive key is given for each of the biological groups that have a notable number of fish parasites. In addition to this, there are sections devoted to such topics as: procedures for examining fish for parasites, methods of preserving and preparing parasites for analysis, a check list of parasites of each species of fish, and an extensive bibliographical list of references.

In Memoriam Ralph Vanderwort Bangham, 1895-1966, Glenn L. Hoffman

United States Fish and Wildlife Service: Publications

The council notes with regret the passing of Dr. Ralph Vanderwort Bangham who died at his home in Wooster, Ohio, on 26 February 1966 at the age of 71. Dr. Bangham was one of the pioneers in the field of fish parasitology in the United States.

Studies On The Avifauna Of Burgner Acres, An Upland Stream-Side, Ash-Elm Forest And Its Edge, Kerry Lee Bryan

Masters Theses

No abstract provided.

End Matter, Vol. 9 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Studies On Blood Parasites Of Birds In Coles County, Illinois, Edward G. Fox

Masters Theses

No abstract provided.

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

Masters Theses

No abstract provided.

Observations On The Stone Crab, Menippe Mercenaria Say, In The Vicinity Of Port Aransas, Texas, Earnest H. Powell Jr., Gordon Gunter

Gulf and Caribbean Research

Observations on the stone crab, Menippe mercenaria Say, were started on December 16, 1947. The purpose of these observations was to study the natural history and behavior of this crab, with special reference to its importance as an oyster predator. Plans called for some simple laboratory experimentation and monthly field observations. Although the regularity of the observations was interrupted for various reasons, some information gained which may interest workers is herewith presented.

An Ecological Study Of Notoplana Acticola, A Polyclad Flatworm, In A Rocky Intertidal Habitat On The North Central California Coast, Alan Bradley Thum

University of the Pacific Theses and Dissertations

The taxonomy of the polyclad flatworms is fairly well-known and some attention has been given to study of their physiology. Investigations of an ecological nature, however, are scarce; in fact, no ecological studies have been made on the Pacific Coast of North America. Else- where, Pearse and Wharton (1938) investigated the general ecology of Stylochus frontalis, associated with oysters on the coasts of Florida, and occasional notes have appeared, reporting on polyclads as predators on oysters and barnacles (Book, 1925: Wolke, 1954; Loosanoff, 1956: Skerman,1960)

Digenetic Trematodes From Embiotocid Fishes Of Tomales And Bodega Bays, California, Thomas David Rodella

University of the Pacific Theses and Dissertations

The present paper deals solely with parasites of marine fishes of the family Enbiotocidae represented in the American Pacific according to Special Publications no. 2, American Fisheries Society, 1960, by 20 species, all of which are marine except the Tule perch, Hysterocarpus traski (Gibbons) from fresh water. In Tomales and Bodega Bays 174 fishes representing 9 embiotocid species were examined and found to harbor 6 species of digenetic trem todes, including one here in described as new.

Seasonal Gonadal Changes Of Adult Oviparous Oysters In Tomales Bay, Carl John Berg

University of the Pacific Theses and Dissertations

Two species of oviparous oysters, Crassostrea virginica (Gmelin, 1790), the Eastern oyster, and Crassostrea gigas (Thunbert, 1793), the Japanese oyster, were introduced into Tomales Bay, California, for commercial purposes. Because these oysters do not propagate in Tomales Bay, new shipments of adult oysters or oyster spat must be periodically sent from the east coast of the United States or from Japan. It is the purpose of this study to compare the seasonal gonadal changes which occur in the two species of adult oysters in Tomales Bay with one another, and to compare them with the seasonal gonadal changes which occur …

Oxygen Uptake And Thyroid Activity During Amphibian Metamorphosis, Susan Ann Foster

University of the Pacific Theses and Dissertations

Oxygen consumption can most readily be related to wet weight. However, the weight of a tadpole increases so long as it is feeding, then decreases during final non-feeding stages. Oxygen uptake may also be related to dry weight, but dry weight increases significantly from early tadpole stages to adult (Funkhouser and Mills, in press). There is change in one factor at the same time the change in the the other factor is in the opposite direction. Total nitrogen content may be used as an index of the metabolizing tissue, but is subject to the same criticism as dry weight (Moore, …

Seasonal Gonadal Changes In Two Bivalve Mollusks In Tomales Bay, California, Vernon Kenneth Leonard

University of the Pacific Theses and Dissertations

Pododesmus cepio Gray (1850), a bivalve mollusk of Family Anomiidae, is native to the Pacific coast of North America and common in Tomales Bay, California. A small population of the European oyster, Ostrea edulis Linnaeus (1758), is being raised experimentally at the Tomales Bay Oyster Company. The histological study of the seasonal gonadal changes of these two species, in Tomales Bay, is described below.

The study of gametogenesis in O. edulis in Tomales Bay is desired to evaluate the reproductive adaptation of this animal to a new set of ecological conditions. The inclusion of the native P. cepio in this …

Taxonomic Characters In The Genus Echinococcus (Cestoda: Taenlidae), Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Not more than four species of cestodes of the genus Echinococcus Rudolphi, 1801, are recognized as valid. The larval stage of at least three of them is able to develop in man, causing respective types of hydatid disease. Accurate characterization of these cestodes, including both larval and adult stages, is essential for identification, upon which depends development of methods for preventing infection of man and domestic animals. Because morphological characteristics of the larval cestodes may be modified according to the species of host in which they develop, identification should be based upon taxonomic characters of specimens from the respective natural …

Pasożyły Przewodu Pokarmowego I Płuc Zajęcy Woj. Białostockiego, Stefan Wieczorowski

Harold W. Manter Laboratory of Parasitology: Library Materials

English summary

Wieczorowski S. - The alimentary tract and the lungs parasites in hares in Białystok voivodship

87 parasitic sections were made of hares coming from Białystok voivodship territory. The investigations lead to the conclusion that the hares are 100 percent invaded by parasites. Among the roundworms of the alimentary tract, the most frequent are the following: Trichostrongylus retortaeformis (78.1 percent) and Trichocephalus sylvilagi (43 percent). Coccidiosis is also widespread; it was found in 77 percent of the investigated animals.

Effects Of Poor Quality Diets With Various Dietary Factors Added And Exposure To Cigarette Smoke On The Voluntary Alcohol Intakes Of Albino Rats, Bonnie Emmerson

Loma Linda University Electronic Theses, Dissertations & Projects

Studies were conducted utilizing albino rats to determine the relationship of voluntary alcohol consumption with various dietary additives and exposure to cigarette smoke in combination with poor quality diets. Male, Sprague-Dawley rats, from weanling age to 100 grams, were given the various experimental diets and a free fluid choice of ten per cent ethanol or tap water. Fluid intakes were recorded and analyzed statistically. Individual variation was common with a generally low level of alcohol consumption when rats were fed a poor quality diet of common United States foods. The addition of caffeinated beverages and/or spices and relish caused increases …

7 Species Of American Birds Adorn Cards For Christmas, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Record Number Of Whoopers Nest At Aransas Winter Refuge, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Fort Worth Well Represented At Ornithological Gathering, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Birds Residing At Area Lake Signify Changing Of Seasons, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Christmas Greetings 1967, Jane Claire Dirks-Edmunds, Ray Edmunds

Jane Claire Dirks-Edmunds Documents

This Christmas letter from Jane Claire Dirks-Edmunds and her husband Ray Edmunds, sent to friends and family in 1967, shares experiences from their frequent travels during that year.

Front Matter, Vol. 9 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 9 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Birds Of The Upper Colorado River Basin, C. Lynn Hayward

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Endocrinological Psychiatry And Psychology, M. Bleuler

Henry Ford Hospital Medical Journal

This is the text of a lecture given before the Henry Ford Hospital medical staff by Dr. Bleuer, who is the son of Eugen Bleuler, his predecessor as chairman of psychiatry at the University of Zurich and the man who first named "schizophrenia". It is printed here with Dr. Bleuler's permission.

Publications Of The Staff Of The Henry Ford Hospital And The Edsel B. Ford Institute For Medical Research

Henry Ford Hospital Medical Journal

No abstract provided.

Guidebook For Planning A Farm Or Ranch Business, Wallace G. Aanderud, Myron T. Barber, Merlyn M. Dahl

SDSU Extension Circulars

This farm business planning guide is designed to help you plan for more profitable use of land, capital, labor, and management. The estimates are based on slightly above average management. It is intended as a handy reference to guide individual farm planning, Extension and vocational agriculture farm management and planning programs, and to generally help promote more efficient agricultural production on South Dakota farms and ranches. Budget information is provided for common cash and feed grain crops, forage crops, and 50 different livestock ente/prise situations. The data provided are based primarily on information from published and unpublished materials provided by …

Agricultural Development In East Central Florida, East Central Florida Regional Planning Council Staff

City and Regional Planning -- Florida

AGRICULTURAL DEVELOPMENT is one of fourteen reports in the East Central Florida Regional Planning Council's 1965 Research Series. Each report covers a separate aspect of the Region's development and includes the author's projections and recommendations. Thus the fourteen reports constitute a unified, detailed picture of the Region that will serve as a base for both general and special studies over the years to come. As soon as the studies were completed, the Council began the task of evaluating and coordinating the research material in order to evolve a long-range plan for sound development in the Region. The Council's policies and …