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Ornithological Literature, Wilson Bulletin Jun 1931

Ornithological Literature, Wilson Bulletin

Wilson Bulletin

No abstract provided.

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Trenched Plots Under Forest Canopies, James W. Toumey, Raymond Kienholz Jan 1931

Trenched Plots Under Forest Canopies, James W. Toumey, Raymond Kienholz

Yale School of the Environment Bulletin Series

The relative importance of light and soil moisture in particular is better known than that of other environmental factors. We are coming to believe that the nature and condition of the reproduction and other surface vegetation beneath living canopies are not due to any single factor such as light or soil moisture, but to a complex of factors.

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Fat Deposits In Certain Ericacere, Oran B. Stanely Jan 1931

Fat Deposits In Certain Ericacere, Oran B. Stanely

Butler University Botanical Studies

The purpose of this work was to investigate the structures of certain available plants of the family Ericacere with special interest in fat deposits in the tissues.
HISTORICAL. Priestly and Hinchliffe (8) have called attention to the characteristic appearance of plants growing in peat moors of England. These plants are of a stunted nature, dark green in color, leathery in texture, and with very little leaf surface. These characteristics, along with certain others, have led to these plants being grouped with xerophytes. This seems strange, as xerophytism is associated, normally, with scarcity of water.

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Algae Of Marion County, Indiana, C. M. Palmer Jan 1931

Algae Of Marion County, Indiana, C. M. Palmer

Butler University Botanical Studies

Reverend George L. Curtiss, in 1882, published in the Twelfth Report of the State Geologist (Indiana) an article entitled, "Diatoms of the Waters of Indiana." It includes, from Marion county, a list and illustrations of seventy-eight forms. One of these, Staurastrum asperum, is considered now as a desmid rather than a diatom. This paper by Curtiss is, apparently, the only one which has been published on the algae of Marion county in which genera or species are given.

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In Memoriam: Bird Thomas Baldwin; J. M. Fulton; John Littleton Tilton; Flora May Tuttle; M. F. Arey; Abram Owen Thomas; Joseph A. Treganza; Louis H. Pammel, George D. Stoddard, Charles Keyes, Henry S. Conrad, E. J. Cable, James H. Lees, B. Shimek Jan 1931

In Memoriam: Bird Thomas Baldwin; J. M. Fulton; John Littleton Tilton; Flora May Tuttle; M. F. Arey; Abram Owen Thomas; Joseph A. Treganza; Louis H. Pammel, George D. Stoddard, Charles Keyes, Henry S. Conrad, E. J. Cable, James H. Lees, B. Shimek

Proceedings of the Iowa Academy of Science

No abstract provided.

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Some Flowers Visited By Birds, A. L. Pickens Jan 1931

Some Flowers Visited By Birds, A. L. Pickens

Condor

No abstract provided.

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Volume 35, Number 33, May 28 1930, Linfield Archives Jun 1930

Volume 35, Number 33, May 28 1930, Linfield Archives

Linfield Newspaper Collection

No abstract provided.

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The Wellesley News (03-13-1930), Wellesley College Mar 1930

The Wellesley News (03-13-1930), Wellesley College

The Wellesley News (1901-1948)

No abstract provided.

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An Ecological Study Of The Heath Balds Of The Great Smoky Mountains, Stanley A. Cain Jan 1930

An Ecological Study Of The Heath Balds Of The Great Smoky Mountains, Stanley A. Cain

Butler University Botanical Studies

The inhabitants of the Great Smoky mountains usually refer to the heath communities under consideration as "slicks" or "balds." The former name is derived from the smooth appearance they present on the ridges and mountain tops when viewed from a distance and which is entirely misleading, for they are extremely rough and tangled. The name "bald" refers to the absence of trees, these areas being exclusively occupied by shrubs. The term "heath bald" is used in this paper to include all such treeless areas dominated by members of the order Ericales. The use of the term "heath" is not entirely …

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The Virginia Teacher, Vol. 10, Iss. 9, November-December 1929 Nov 1929

The Virginia Teacher, Vol. 10, Iss. 9, November-December 1929

The Virginia Teacher

No abstract provided.

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Creating Interest In Biology, Sadie S. Williams Nov 1929

Creating Interest In Biology, Sadie S. Williams

The Virginia Teacher

No abstract provided.

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The Genus Trillium In Indiana, Ray C. Friesner Jan 1929

The Genus Trillium In Indiana, Ray C. Friesner

Butler University Botanical Studies

The fact that members of the genus Trillium are quite variable is well borne out when one notes the number of reports of variations and teratological conditions in the literature. Such conditions make it important that more detailed critical study be made of members of the genus from the standpoint of their distribution and variation in smaller areas. Studies of the species occurring in wider areas were made by Gleason (19) and Gates (18). More detailed study of particular species in more restricted areas is of considerable value in adding light to the problem of species relationship and delimitation. Such …

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Roster And Records Of Secretary: 1903-1929, Iowa Academy Of Science Jan 1929

Roster And Records Of Secretary: 1903-1929, Iowa Academy Of Science

Iowa Academy of Science Documents

Meeting minutes, conference programs, and more from the Iowa Academy of Science during the years 1903-1929.

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Additional Notes On Iowa Mosses, Betty Blagg Jan 1929

Additional Notes On Iowa Mosses, Betty Blagg

Proceedings of the Iowa Academy of Science

During the year 1928-29, I have done no concentrated work on the Iowa mosses. A few interesting specimens have been picked up, however, in the little time that it was possible to devote to the work. Collections have been started in the vicinity of Ames, a part of the state in which almost no collecting has been reported. The Ledges State Park at Boone promises interesting possibilities, since the geological formations are quite different from those of the rest of the state. Rhodobryum roseum (Weis.) Limpr. was found fruiting. Dr. A. J. Grout says of this species, "Although common, in …

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The Woodpeckers Of Lincoln County, Montana, Winton Weydemeyer, Donald Weydemeyer Nov 1928

The Woodpeckers Of Lincoln County, Montana, Winton Weydemeyer, Donald Weydemeyer

Condor

No abstract provided.

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Fish Collected In The Vicinity Of Vinton, Iowa, David T. Jones Jan 1928

Fish Collected In The Vicinity Of Vinton, Iowa, David T. Jones

Proceedings of the Iowa Academy of Science

It is hoped that this article may be but a start toward supplying definite records on what fish exist today in our Iowa streams. Our old records for the state are good, but we need recent records on which to base our ecological studies and to establish a sound program of conservation. Some neighboring states have been very active in ichthyological surveys, which have to a great extent made such work here seem less urgent. Neither the excellency of work done thirty-five or forty years ago nor the completeness of work done recently near our borders affords us an excuse …

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A Second Intensive Ornithological Survey Of A Typical Square Mile Of Cultivated Prairie, After A Ten Year Interval, Chas. J. Spiker Jan 1927

A Second Intensive Ornithological Survey Of A Typical Square Mile Of Cultivated Prairie, After A Ten Year Interval, Chas. J. Spiker

Proceedings of the Iowa Academy of Science

This paper presents a report of a second intensive ornithological survey over a square mile of cultivated prairie. The first survey was made on July 25 and 26, 1916, by Dr. Arthur R. Abel, who was at that time a student in Morningside College, Sioux City, Iowa. The report of this survey was published in the Proceedings of the Iowa Academy of Science, Vol. XXVII, 1920, pages 385 to 393 inclusive. It was thought that a repeated survey over the same ground after an interval of ten years, would be both interesting and important. It was not possible for the …

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Progress Of Agricultural Experiments-1925, Bulletin, No. 221, New Hampshire Agricultural Experiment Station Feb 1926

Progress Of Agricultural Experiments-1925, Bulletin, No. 221, New Hampshire Agricultural Experiment Station

NHAES Bulletin

The Bulletin is a publication of the New Hampshire Agricultural Experiment Station, College of Life Sciences and Agriculture, University of New Hampshire, Durham, New Hampshire.

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An Ecological Study Of Timpanogos Creek From Aspen Grove To Wildwood, Marion L. Harris Jan 1926

An Ecological Study Of Timpanogos Creek From Aspen Grove To Wildwood, Marion L. Harris

Theses and Dissertations

Ecology may be oonsidered as one of the vital parts of botany, since there are two ultimate facts in this science; namely, the plant and its habitat . The habitat is made up of the physical factors that control function. At Timpanogos there are so many different habitats, that the chief problem is not that of finding a problem to study, but rather that of selecting one from the many. The purpose of this paper is to point out some of the interesting features that are found in a study of Timpanogos Creek from Aspen Grove to Wildwood.

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Plant Production As A Measure Of Environment: A Study In Crop Ecology, J. E. Weaver Jul 1924

Plant Production As A Measure Of Environment: A Study In Crop Ecology, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

Table of Contents:
Introduction
Location and Description of Stations
Comparisons of Environments
Experimental Methods and Results, 1920
Experiments during 1921
Environmental Conditions
Plant Yield
Experiments during 1922
Environmental Conditions
Native Plant Yield
Growth Of Maize
Summary of Experiments on Native Vegetation
Summary

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Range And Pasture Management, J. E. Weaver Apr 1924

Range And Pasture Management, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

Sampson's range and pasture management is an excellent example of the application of the principles of ecology to the solution of economic problems. In grazing experiments it is of equal importance to know what is happening to the stock and to the vegetation. This emphasizes the fact, which ecologists are coming more and more to recognize, that animals, both wild and domesticated, have a proper place in the environment and that they play an important role in modifying the vegetational development. This volume consists largely of first-hand information obtained by the author during fifteen years of intensive pasture investigations for …

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A New Apparatus For Measuring Deep Water Temperatures, Frank A. Stromsten Jan 1923

A New Apparatus For Measuring Deep Water Temperatures, Frank A. Stromsten

Proceedings of the Iowa Academy of Science

There has always been a certain fascination in the study of things related to great bodies of water. The curiosity to know what is going on beneath the turbulent waves when the storm is raging and what the conditions are beneath the smooth surface when all is quiet has ever challenged our spirit of investigation. What are the environmental conditions of aquatic life has given considerable impetus to the physical and chemical phases of limnology. Temperature seems so closely interwoven into the environmental complex that careful and exact measurement of this factor is one of the first things to be …

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Food Of The Short-Nosed Gar-Pike (Lepidosteus Platystomus) In Lake Okoboji, Iowa, George E. Potter Jan 1923

Food Of The Short-Nosed Gar-Pike (Lepidosteus Platystomus) In Lake Okoboji, Iowa, George E. Potter

Proceedings of the Iowa Academy of Science

The food habits of any animal have a distinct bearing upon its life and so it is with the Gar-pike. In order to ascertain the kind and amount of food taken by this fish, many collections were made, stomachs dissected, the contents carefully examined and preserved.

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Biological Station Summer Session, 1921, State University Of Montana (Missoula, Mont.), Flathead Lake Biological Station Jan 1921

Biological Station Summer Session, 1921, State University Of Montana (Missoula, Mont.), Flathead Lake Biological Station

University of Montana Bulletin: Biological Series: Biological Station Summer Session, 1899-1974

Description of summer school offerings at the Flathead Lake Biological Station, June 18 to July 29, 1921.

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The Relation Of The Smaller Forest Areas In Non-Forested Regions To Evaporation And Movement Of Soil Water, Irwin T. Bode Jan 1920

The Relation Of The Smaller Forest Areas In Non-Forested Regions To Evaporation And Movement Of Soil Water, Irwin T. Bode

Proceedings of the Iowa Academy of Science

The importance of the climatic and edaphic relations of forests has been the basis for wide discussion and study. The scope of this field is shown in a condensed way in a report of the Sub-Committee on Forest Investigations to the Fifth National Conservation Congress, which discusses studies undertaken up to the time of the report (1913) and presents in general results obtained. Recently, Zon, in a paper, "Forests and Water in the Light of Scientific Investigation," has presented a much more comprehensive view of the subject and the literature. He has attempted to bring together "all the well-established scientific …

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Relative Transpiration Of Coniferous And Broad-Leaved Trees In Autumn And Winter, J. E. Weaver, A. Mogensen Dec 1919

Relative Transpiration Of Coniferous And Broad-Leaved Trees In Autumn And Winter, J. E. Weaver, A. Mogensen

Department of Agronomy and Horticulture: Faculty Publications

Transpiration has been of special interest to many investigators for a long time. At first it was considered without reference to environmental factors, but later, as more observations were made and these factors were noted to have a marked effect upon the water loss, they were taken into consideration. Many of the data assembled have been limited to plants during the growing season, so that it has seemed profitable to obtain not only quantitative data on winter losses, but also a comparison of the relative transpiration of conifers and broad-leaved trees in summer and winter.

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An Ecological Study Of Dry Run, A Typical Prairie Stream, Laurence Palmer Jan 1919

An Ecological Study Of Dry Run, A Typical Prairie Stream, Laurence Palmer

Proceedings of the Iowa Academy of Science

Dry Run, a tributary of Cedar River in Black Hawk County, Iowa, furnishes an excellent unit for studying the ecology of a prairie stream. It is rather exceptional in that for a greater portion of the year a natural barrier is formed where the stream flows underground for the last two miles of its course. This study is concerned only with the west branch which joins a brook of similar size near the grounds of the Cedar Valley Fair Association. While this paper deals only with a description of the creek and the distribution of its fish inhabitants, it is …

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Index Jan 1919

Index

Proceedings of the Iowa Academy of Science

No abstract provided.

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Biological Station Summer Session, 1919, State University Of Montana (Missoula, Mont.), Flathead Lake Biological Station Jan 1919

Biological Station Summer Session, 1919, State University Of Montana (Missoula, Mont.), Flathead Lake Biological Station

University of Montana Bulletin: Biological Series: Biological Station Summer Session, 1899-1974

Description of summer school offerings at the Flathead Lake Biological Station, August 4 to September 12, 1919.

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The Quadrat Method In Teaching Ecology, J. E. Weaver Nov 1918

The Quadrat Method In Teaching Ecology, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

The quadrat method of studying vegetation has become an integral part of many of the more important ecological investigations. Although occasionally used throughout the past century for determining the amount of plant material produced or for purposes of enumeration, it was organized into a definite system for the study of the structure and development of vegetation by Pound and Clements (15, 16) and Clements (2, 3, 5) only about eighteen years ago. Since that time it has been used, sometimes in a modified form (12, 21), by numerous investigators both American and European. Indeed, with the rapid increase in the …

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