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Articles 10471 - 10500 of 10513

Full-Text Articles in Zoology

Whole Issue Nebraska Bird Review (July 1933) 1(3) Jul 1933

Whole Issue Nebraska Bird Review (July 1933) 1(3)

Nebraska Bird Review

Contents

Local Bird-Banding. By Susie Callaway ... 59

General Notes ... 61

Editorial Page ... 65

The 1933 Migration Season ... 66

Here and There with the A.O.U. Members ... 79

A Brief Synopsis of the Birds of Nebraska. 1. Loons (Gaviidae) ... 87

Minutes of the Thirty-fourth Annual Meeting ... 90

Report on the Thirty-first Annual Field Day ... 104

Membership Roll of the Nebraska Ornithologists' Union ... 105

Addresses of Retiring Presidents of the Nebraska Ornithologists' Union ... 108


A Morphological Study Of Daphniidae, Stanley E. Zawodny May 1933

A Morphological Study Of Daphniidae, Stanley E. Zawodny

Bachelors’ Theses

Th importance of fresh-water organisms is usually underestimated, especially by the very people who live near bodies of fresh-water and who thus can observe such organisms throughout the year. It is really easier to study minute life forms than it is to study larger organisms, for the former can be examined under all kinds of conditions as experiments are performed upon them. The purpose of this thesis is to give a short survey of the chief type among the fresh-water, Crustaceans, with special reference to morphology.


Bird Studies Of The Bear River Marshes, Ernest W. Parkinson May 1933

Bird Studies Of The Bear River Marshes, Ernest W. Parkinson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The establishment of the Bear River Bay Bird Refuge has created for the state of Utah an immense and valuable biological field, a veritable paradise for naturalist and sportsman alike. The naturalist wants a place to study wild life and the sportsman desires game. With the proper control of open seasons on wild fowl the hunting instinct and incentive for the sport should be satisfied for the sportsman. To the naturalist this region will open up bountiful treasures of knowledge that is to be gained only by intense and prolonged scientific study.

Within this new field, and the limited time …


Whole Issue Nebraska Bird Review (April 1933) 1(2) Apr 1933

Whole Issue Nebraska Bird Review (April 1933) 1(2)

Nebraska Bird Review

Contents

A Comparison of the Bird Faunas of the Pampas of Argentina and the Plains of Nebraska. By Lawrence Bruner . . . . . . . . . . . . . . . . . . 27

General Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 29

Editorial Page........................................... 36

The 1933 Migration Season ................................ 38

Here and There with the N. O. U. …


Whole Issue Nebraska Bird Review (January 1933) 1(1),. Copyright 1933, Nebraska Ornithologists' Union. Used By Permission. Jan 1933

Whole Issue Nebraska Bird Review (January 1933) 1(1),. Copyright 1933, Nebraska Ornithologists' Union. Used By Permission.

Nebraska Bird Review

Contents

Observations on the Number of Birds to the Square Mile in Custer County. By J. M. Bates. . . . . . . . . . . . . . . . . . . . . .. 3

General Notes . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5

Editorial Page..................... . . . . . . . . . . . . . . …


The Endocrine Glands And Their Secretions, Eldred M. Moehrke May 1932

The Endocrine Glands And Their Secretions, Eldred M. Moehrke

Bachelors’ Theses

In the following work the endocrine system was considered in general with special emphasis on the thyroid and para-thyroid glands. In some manner,which we do not well understand,the thyroid and the para-thyroid glands affect the other ductless glands and it is this relationship that is stressed.


General Morphology And Physiology Of The Urogenital System Of The Opossum, Robert Schuster May 1932

General Morphology And Physiology Of The Urogenital System Of The Opossum, Robert Schuster

Bachelors’ Theses

From the very first, I wish the state that the title, "General Morphology and Physiology of the Urogenital System of the Opossum," is not entirely descriptive of the text which is to follow. However it is as nearly descriptive as I could hope to make it.

It seems that during the history of biological research the workers have done comparatively little work on the Opossum. This neglect was probably due to its inaccessibility, since it is found only in Australia and in the semitropic regions of North America. In the nineteenth century the eminent authority on anatomy, Sir Richard Owen, …


The Spleen: With Special Reference To Its Origin And Comparative Morphology, Morris Aaron Gilbert Jan 1931

The Spleen: With Special Reference To Its Origin And Comparative Morphology, Morris Aaron Gilbert

Bachelors’ Theses

Throughout the ages the spleen has been an object of the most active curiosity. The opinion that the spleen is unnecessary and of no use to the individual has prevailed with an uninterrupted succession in the World in all ages. In Persia, many centuries ago, in the reign of Abouserous it was a custom to splenectomize the horses that were kept to carry the King’s dispatches, in order to give them more agility and swifter feet. The great Aristotle thought the spleen to be a sort of spurious liver planted in the left side to correspond to the liver in …


The Tapeworms Of The Rhinoceroses, A Study Based On Material From The Belgian Congo, Horace W. Stunkard Jan 1926

The Tapeworms Of The Rhinoceroses, A Study Based On Material From The Belgian Congo, Horace W. Stunkard

Harold W. Manter Laboratory of Parasitology: Library Materials

During the course of my study on the parasitic worms collected by the Lang-Chapin expedition of the American Museum to the Belgian Congo, I have had the good fortune to examine abundant material of Plagiotaenia gigantea (Peters). This interesting species, the first reported from the rhinoceros, has been confused with other cestodes from rhinoceros hosts, has been assigned to no less than three different genera in addition to the genus Taenia, to which it was originally referred, and has been the source of much discussion and difference of opinion during the past seventy years. A review of the literature …


Trematodes From The Rat, Horace Wesley Stunkard, Chilson B. Haviland Jan 1924

Trematodes From The Rat, Horace Wesley Stunkard, Chilson B. Haviland

Harold W. Manter Laboratory of Parasitology: Library Materials

Occasional examinations of rats for animal parasites have been carried on for over a hundred years. Later, knowledge of the importance of rats as reservoirs of infection and as agents in the transfer of parasitic diseases has led to the regular and careful examination of large numbers in various parts of the world. Among the more recent publications dealing with the parasites of rats may be mentioned Shipley (1908), Moll (1917), Chandler (1921), Balfour (1922), Baylis (1922), Stevenson (1922), Hegner (1923), and Lavier (1924). Notwithstanding the many investigations, only a single trematode parasite has previously been discovered and concerning it …


On A New Species Of Otter From Nebraska, Myron Harmon Swenk Jan 1918

On A New Species Of Otter From Nebraska, Myron Harmon Swenk

University of Nebraska State Museum: Mammalogy Papers

In 1908 I referred our Nebraska otters to L. c. sonora (Rhoads), basing this conclusion on the mounted specimen in the University Museum, because of its large size and pallor, that being the only Nebraska specimen in any collection in the state at that time, and, so far as known to me, the only Nebraska specimen extant except the young female in the U. S. National Museum mentioned above. In 1915 I repeated this identification. The taking of a fine old male otter with a perfect skull in eastern Nebraska in 1916 reopened the whole question, and a close study …


On A New Subspecies Of Porcupine From Nebraska, Myron H. Swenk Jan 1916

On A New Subspecies Of Porcupine From Nebraska, Myron H. Swenk

University Studies (University of Nebraska) (1888–1984)

Publication NO.2 of the Nebraska State Biological Survey.

Nebraska porcupines all belong to the yellow-haired species (Erethizon epixanthum) , and these animals have never been abundant in the state. Formerly, however, they were much more numerous than today, and enjoyed a more extended range in the state than they do at the present time. Up to about 1885 these animals occurred across the northern portion of Nebraska east at least to Pierce and Madison counties, there being records of four specimens secured along the small streams tributary to the Elkhorn river in these two counties between 1870 and 1885. Also, …


Dr. Nott's Theory Of Insect Causation Of Disease, William A. Riley Sep 1914

Dr. Nott's Theory Of Insect Causation Of Disease, William A. Riley

Harold W. Manter Laboratory of Parasitology: Library Materials

Excerpt:

The danger in using isolated sentences from an article as a basis for interpreting the author's theories, is generally recognized, but sometimes the most careful workers fall into the trap. Once the mistaken interpretation is published, it may be copied over and over again until it rises to the dignity of a dogma.

A striking illustration is afforded by the practical unanimity with which writers on the subject of insects and disease credit Dr. Josiah Nott with being the earliest to formulate definitely the theory of mosquito transmission of yellow fever.

Nuttall, in his classic monograph On the Role …


Chelonian Brain-Membranes, Brain-Bladder, Metapore And Metaplexus, John P. Munson May 1913

Chelonian Brain-Membranes, Brain-Bladder, Metapore And Metaplexus, John P. Munson

Biology Faculty Scholarship

The chelonian brain is not too small to be studied macroscopically. It is easily removed from the skull. Minute surface details and the cell structure can be easily observed.


A Comparative Study Of The Structure And Origin Of The Yolk Nucleus, John P. Munson Jan 1912

A Comparative Study Of The Structure And Origin Of The Yolk Nucleus, John P. Munson

Biology Faculty Scholarship

The question as to the comparative structure and origin of the yolk nucleus involves several other problems:

1. Is the yolk nucleus a normal element of the egg cytoplasm, or is it associated with pathological states of the egg, or is it an artefact due to reagents?

2. Is there a necessary connection between one form and another such that one can be derived from the other?

3. Is it an amorphous chemical substance or does it possess anything suggesting permanence of structure?

4. Does it arise de novo or is it a modification of something similar existing in the …


A Plea For The Protection Of Our Birds, Lawrence Bruner Oct 1908

A Plea For The Protection Of Our Birds, Lawrence Bruner

Department of Entomology: Faculty Publications

The fact that insect depredations are increasing in extent each succeeding year makes it plain to us that something must be done to prevent it, and that quickly. We have found to our sorrow that, although we are continually making increased efforts to destroy these pests, our efforts avail but little and the destruction of our crops goes on. What, then, is to be done? How can we be released from this ever-increasing struggle for existence? The answer is plain. Heed the advice of the Naturalist who has made a study of the life-histories of the various other living creatures …


Researches On The Oogenesis Of The Tortoise, Clemmys Marmorata, John P. Munson Jul 1904

Researches On The Oogenesis Of The Tortoise, Clemmys Marmorata, John P. Munson

Biology Faculty Scholarship

No abstract available.


A Preliminary Review Of The Birds Of Nebraska With Synopses, Lawrence Bruner, Robert H. Wolcott, Myron H. Swenk Jan 1903

A Preliminary Review Of The Birds Of Nebraska With Synopses, Lawrence Bruner, Robert H. Wolcott, Myron H. Swenk

Papers in Ornithology

In 1896, Prof. Bruner published his list entitled "Some Notes on Nebraska Birds." As a working basis for the study of the ornithology of the state it has proven invaluable and it has also been greatly in demand by people not ornithologists, who desired to "know something about our birds." That edition was exhausted some time ago and its author has been frequently urged to publish another. However, the organization of the Nebraska Ornithologists' Union and the development of ornithology in the University has led to such a rapid increase in our knowledge in the past five years that it …


Article Xxii.-A New Genus Of Ground Sloth From The Pleistocene Of Nebraska, Barnum Brown Jan 1903

Article Xxii.-A New Genus Of Ground Sloth From The Pleistocene Of Nebraska, Barnum Brown

University of Nebraska State Museum: Mammalogy Papers

This genus is founded on a nearly perfect skull and lower jaw in the American Museum collections (No. 2780), with associated skeletal material including five cervical vertebrae, tibia, fibula, calcaneum, astragalus, lunar, middle digit of manus, and ribs, found by the Expedition of 1897 near Hay Spring, Nebraska. Professor Henry F. Osborn has placed this material in the writer's hands for description.


Proceedings Of The Nebraska Ornithologists' Union I, Ii, & Iii, 1899-1902, Robert Wolcott Jan 1902

Proceedings Of The Nebraska Ornithologists' Union I, Ii, & Iii, 1899-1902, Robert Wolcott

Nebraska Bird Review

INDEX, Compiled by M. H. Swenk

FIRST ANNUAL MEETING, Lincoln, Nebr., Dec. 16, 1899

ABSTRACT OF MINUTES

CONSTITUTION AND BY-LAWS

PRESIDENT'S ADDRESS — ORNITHOLOGY IN NEBRASKA. PROF. LAWRENCE BRUNER

A TWENTY-THREE YEARS' RECORD KEPT BY DR. A. E. CHILD OF PLATTSMOUTH, NEB., Dr. R. H. WOLCOTT

ADDITIONAL NOTES AND OBSERVATIONS ON THE BIRDS OF NORTHERN NEBRASKA. REV. J. M. BATES.

THE BIRD FAUNA OF THE SALT BASIN, NEAR LINCOLN. MR. J. S. HUNTER.

SOME BIRD NOTES FROM THE UPPER ELKHORN. MR. MERRITT CARY

SOME NOTES ON THE NESTING OF THE RAPTORES OF OTOE COUNTY, NEBRASKA. MR. M. A. CARRIKER, JR. …


Note On Taenia Confusa, Henry B. Ward Aug 1897

Note On Taenia Confusa, Henry B. Ward

Studies from the University of Nebraska Zoological Laboratory

About a year ago I described in the Western Medical Review (Vol. I. pp. 35, 36) a new tape-worm under the name of Taenia confusa. Only two specimens of the form were available at that time and I have not been successful in obtaining others since then. During the past 'year, one of the students in the Zoological Laboratory of the University of Nebraska has been conducting a careful investigation of this form and one specimen has been entirely sacrificed to that purpose, In advance of the publication of his thesis it seems that I should make a short explanation …


Zoology In The High School Curriculum, Henry B. Ward Aug 1897

Zoology In The High School Curriculum, Henry B. Ward

Studies from the University of Nebraska Zoological Laboratory

A long time has elapsed since Bacon gave to the world the sound advice that “ we should accustom ourselves to things themselves.” Little by little this idea has gained ground, until now it is recognized as a general principle in every grade of educational work and in widely separated departments of study that contact with concrete objects is far more inspiring and thought-producing than the mere scanning of black marks on a white page. So far as natural science is concerned, the varied training which it affords has been abundantly discussed before this association and elsewhere. To be sure, …


Studies On Nebraska Parasites, Henry B. Ward Aug 1897

Studies On Nebraska Parasites, Henry B. Ward

Studies from the University of Nebraska Zoological Laboratory

The intimate relations in which domestic animals stand to man have always made the transfer of parasites from the one to the other a matter of much greater probability than exists between man and the other forms of animal life. It is but natural that the most common species of human tapeworm come to man from his two chief sources of animal food-beef and pork. The chances of accidental infection, however, are evidently much greater in the case of those forms that are intimately associated with man, and hence clearly greatest in those he holds as household pets,the dog and …


Animal Parasites Of Nebraska, Henry B. Ward Aug 1896

Animal Parasites Of Nebraska, Henry B. Ward

Studies from the University of Nebraska Zoological Laboratory

The report submitted this year consists of two main portions: the first a short study on the numerical frequence of parasites among the dog, cat, and chickens of Nebraska, and the second of several brief accounts of new and important parasites discovered within the state since the publication of the last report.


A Biological Examination Of Lake Michigan In The Traverse Bay Region, Henry B. Ward Aug 1896

A Biological Examination Of Lake Michigan In The Traverse Bay Region, Henry B. Ward

Studies from the University of Nebraska Zoological Laboratory

During the summer of 1893 the Michigan Fish Commission entered upon a biological study of the Great Lakes by maintaining a party on Lake St. Clair. In the report of that two months, written by the director of the laboratory, Professor J. E. Reighard, are given in full the reasons which led to the inception of the undertaking and the aims which its promoters held in view. A study of the life of the lake in all its manifold interrelations and especially of those factors which bore upon the welfare of the food fishes in general and the young whitefish …


A New Human Tapeworm (Taenia Confusa N. Sp.), An Entozoon, Probably Of Order Cestoidea, Henry B. Ward Jan 1896

A New Human Tapeworm (Taenia Confusa N. Sp.), An Entozoon, Probably Of Order Cestoidea, Henry B. Ward

Studies from the University of Nebraska Zoological Laboratory

Somewhat more than a year ago a tapeworm was sent me which at first sight appeared decidedly unlike either Taenia saginata or Taenia solium. It showed the slender form and more delicate appearance of the latter, but was in length of segments even decidedly larger than the former species. Some notes were made at the time, and then, on account of pressure in other directions, laid aside to await opportunity for further study. This winter I received a second specimen which at once recalled the first, and on comparison was seen to be identical with it. A series of …


The Food Supply Of The Great Lakes; And Some Experiments On Its Amount And Distribution, Henry B. Ward Jan 1896

The Food Supply Of The Great Lakes; And Some Experiments On Its Amount And Distribution, Henry B. Ward

Studies from the University of Nebraska Zoological Laboratory

The subject of agriculture has received for many years the closest attention of scientific workers. Not only the character of the different products, their food value for different uses and in connection with the raising of different kinds of stock ; but also the value of the soil, the use of each element in it, the exact relation of each individual particle in the entire chain of biological relations from the unorganized matter to the saleable beef or pork, has received from the experiment stations of the country the most careful study. Every one of the pests, of the enemies …


On Distoma Felineum Riv. In The United States And On The Value Of Measurements In Specific Determinations Among The Distomes, Henry B. Ward Aug 1895

On Distoma Felineum Riv. In The United States And On The Value Of Measurements In Specific Determinations Among The Distomes, Henry B. Ward

Studies from the University of Nebraska Zoological Laboratory

The distomes of cats have received special attention of late in the two papers of Braun (94) and Stiles and Hassall (94). The latter authors give a most admirable account of our present knowledge of a dozen allied forms, and record two, D. albidum and D. complexum n. sp., as found in cats in the United States. During the past year I have examined the cats killed at this laboratory, and have found neither of the forms recorded from the east. Distoma felineum, however, which Stiles and Hassall did not find. and which has not been reported hitherto for …


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 …


The Parasitic Worms Of Man And The Domestic Animals, Henry B. Ward Aug 1895

The Parasitic Worms Of Man And The Domestic Animals, Henry B. Ward

Studies from the University of Nebraska Zoological Laboratory

This article has been written for the general information of those engaged either on a large or on a small scale in stock raising in our own state particularly, and, while not intended to be a complete treatise on the subject, it includes references to those parasites which seem to be the most important or most likely to be found within our borders. The parasites of cattle, sheep, horse, hog, dog, cat, and man, which have many species in common, form the subject of this paper. The parasites of domestic fowl are, however, quite different from those considered here and …