Life Sciences Commons^™

Recovery Of Midwestern Prairies From Drought, John E. Weaver

Papers of John E. Weaver (1884-1956)

The long period of desiccation, which began in 1934, finally terminated in 1940. The western portion of True Prairie was greatly decimated and a veritable mosaic of types of vegetation resulted. These ranged from well-preserved relict communities of bluestems (Andropogon) to mixed stands of grasses on nearly bared soil, but included communities of western wheat grass (Agropyron smithii) , short grasses (Bouteloua gracilis and Buchloe dactyloides) , needle grass (Stipa spartea), and prairie drop seed (Sporobolus heterolepis) . These types varied in size from a few square rods to many …

The Yellow-Crowned Night Heron Of Socorro Island, Mexico, A. J. Van Rossem

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Check-List Of The Mammals Of Louisiana And Adjacent Waters, George H. Lowery Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

A New Race Of Brown-Headed Chickadee From Northern Washington, Alden H. Miller

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Birds Of Linares And Galeana, Nuevo León, Mexico, George Miksch Sutton, Olin Sewall Pettingill Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

How To Reseed Utah Range Lands, A. Perry Plummer, Richard M. Hurd, C. Kenneth Pearse

Aspen Bibliography

Additional low cost forage is urgently needed by Utah's range livestock industry. Seeding of depleted tracts in accordance with recently developed methods and principles will help supply this forage and is entirely feasible. Where the value of the increased forage will repay the cost of planting, careful reseeding of selected sites is fully justified.

The important part that reseeding can play in restoring ranges to their former capacity has been demonstrated. Although satisfactory results can be obtained on many sites during average or better years, much more study is needed to insure consistent success in abnormal years and to extend …

Forest Sequences In The North Central State, Paul B. Sears

Papers in Ecology

This paper presents fifteen pollen profiles from as many peat deposits in Illinois, Indiana, Michigan, and Ohio, only two of which-Bucyrus and Mud Lake (Ohio)- have been previously published. These profiles have been prepared to show only the relative fluctuations of eight forest genera and one family, Betulaceae

A Revision Of The Fox Squirrels Of The Lower Mississippi Valley And Texas, George H. Lowery Jr., William B. Davis

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

A New Barn Swallow From The Gulf Coast Of The United States, Thomas D. Burleigh

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

An Inland Race Of Sterna Albifrons, Thomas D. Burleigh, George H. Lowery Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Notes On The Birds Of Southeastern Coahuila, Thomas D. Burleigh, George H. Lowery Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Jane Claire Dirks's Doctorate Of Philosophy Degree, University Of Illinois

Jane Claire Dirks-Edmunds Documents

This diploma from the University of Illinois awards the Doctor of Philosophy degree to Jane Claire DIrks (later Jane Claire Dirks-Edmunds) in June of 1941. Dirks-Edmunds began to study Zoology in Illinois immediately after earning her Bachelor's degree in Biology from Linfield College in 1937. Dr. Dirks-Edmunds received her Ph.D. on her 29^th birthday and returned to Linfield to teach in the Biology department from 1941-1974.

The Early Basis Of Subsistence Of Indians In The Plains Area, Joe D. Reed

Biology ETDs

The fundamental purpose of this paper is to present the picture of early food economy among the Indians of the Plains. In order to accomplish this task the procedure has been to present: (1) a brief study of the tribal groups with special emphasis upon their early history and movements, followed by (2) a general picture of Plains food economy with regard to the sequence and tribal units. The important subjects within this second category have to do with buffalo utilization, agriculture and the gathering to wild plant food; (3) a listing of the various wild plant and animal foods …

The Effect Of Fomes Ignarius On Populus Tremuloides In The Gallatin National Forest Of Montana, Marvin F. Kelly

Aspen Bibliography

No abstract provided.

Letter To Jane Claire Dirks Acknowledging Smithsonian Specimen Contributions, Paul Bartsch

Jane Claire Dirks-Edmunds Documents

Many of the specimens collected by Jane Claire Dirks (later Jane Claire Dirks-Edmunds) went on to become part of her colleagues' collections. In this letter, Paul Bartsch, Curator of the the Divisions of Mollusks and Cenozoic Invertebrates at the Smithsonian Institution, thanks Dirks for shells she sent to the museum.

A Study Of Subspecific Variation In The Richardson Pocket-Gopher (Thomomys Talpoides) In Nebraska, With Descriptions Of Two New Subspecies, Myron H. Swenk

University of Nebraska State Museum: Mammalogy Papers

There has been little published evidence of the occurrence of pocket gophers of the genus Thomomys in Nebraska.

Thomomys talpoides pierreicolus subsp. nov

Pierre Richardson Pocket-Gopher

Thomomys talpoides cheyennensis subsp. nov.

Cheyenne Richardson Pocket-Gopher

The Pipy Concretions Of The Arikaree, C. Bertrand Schultz

Bulletin of the University of Nebraska State Museum

The pipy concretions of the Arikaree (lower Miocene) of Nebraska and adjacent states were first described by Nelson Horatio Darton (1899, p. 743) as "characteristic layers of hard, fine-grained, dark-gray concretions, often consisting of aggregations of long, irregular, cylindrical masses" (see Figures 30, 32, 34, and 35). The individual pipes vary in diameter from a few inches to several feet, and in length from a few inches to a hundred yards or more. Tests demonstrate that pipy concretions are composed of sand cemented by calcium carbonate. When dipped in acid the cement is dissolved and the concretion is reduced to …

The Ancestral Ursid, Hemicyon, In Nebraska, Edwin H. Colbert

Bulletin of the University of Nebraska State Museum

During the summer of 1928, a University of Nebraska State Museum field party, composed of Dr. A. L. Lugn and the writer, made a collection of upper Miocene and lower Pliocene mammals in Brown and Cherry counties, Nebraska. This collection was sponsored and made possible by the generosity of the late Hon. Charles H. Morrill.

A New Fossil Bovid From Nebraska With Notice Of A New Bison Quarry In Texas, C. Bertrand Schultz

Bulletin of the University of Nebraska State Museum

An interesting and unique bovid skull was reported to the staff of the University of Nebraska State Museum in 1938 by Mr. Alvin McReynolds of Nehawka, Nebraska. The specimen was found in 1933 in a ravine north of Nehawka by Messrs. Merritt and Harold Dodson, brothers. Although the skull was not in place, it appears to have been washed out of a nearby Pleistocene clay deposit by floodwaters. The specimen is well preserved and is of a dark brown, almost black color. In 1938 it was loaned to the Museum for study and photographing but was not obtained as a …

A Shovel-Tusked Mastodon, Arnebelodon Fricki, From Kansas, Erwin Hinckley Barbour, Claude W. Hibbard

Bulletin of the University of Nebraska State Museum

Since the Amebelodontinae were first announced (Barbour 1927), a number of examples of the genus Amebelodon have presented themselves in various parts of Nebraska, Colorado, and in several places in Kansas. Thus its range has already been materially extended, many skeletal parts added, and the hope kindled that knowledge of this remarkable group of proboscideans is destined to be greatly enriched within the next few years. As may be seen in the accompanying lists of the known parts of Amebelodon preserved in various museums, there are already at hand the bones necessary for the assemblage of a nearly complete composite …

A New Species Of Sphenophalos From The Upper Ogallala Of Nebraska, Erwin Hinckley Barbour, C. Bertrand Schultz

Bulletin of the University of Nebraska State Museum

The genus Sphenophalos was described by John C. Merriam (1909, p. 319-30), who based his description on a fragmentary horn-core (Uni. of Calif. No. 11887) from the late Tertiary deposits near Thousand Creek in northern Humbolt county, Nevada. Knowledge of Sphenophalos, however, is still confined to this single, fragmented type horn-core (Frick 1937, p. 472) and other fragmental specimens (Furlong 1932, p. 27-36).

Birds Of The Guadalupe Mountain Region Of Western Texas, Thomas D. Burleigh, George H. Lowery Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Mammals Of The Guadalupe Mountains Of Western Texas, William B. Davis

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

A Study Of The Geographical And Ecological Distribution Of The Buffy Plains Pocket Mouse (Perognathus Flavescens Flavescens), With Description Of A New Subspecies From Nebraska, Myron H. Swenk

University of Nebraska State Museum: Mammalogy Papers

The Buffy Plains Pocket-mouse (Perognathus flavescens flavescens) is a typical mammal of the Sandhill Region of Nebraska. Its home, like that of other species of pocket-mice, is a series of burrows in the ground, consisting of several entrance holes leading to the main 'burrow, in which is located the nest and the food storage chambers. In the Nebraska sandhills its burrows and nests are commonly placed beneath clumps of Spanish Bayonet or Prickly Pear Cactus, and the entrance holes usually are so distributed as to open from under the plant in all directions.

The writer had hoped to …

A Survey Of Human Intestinal Protozoa Of Logan City And Vicinity, Robert B. Harrison

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Parasitic protozoa of the intestinal tract of man were first observed by Anthony van Leeuwenhoek (1632-1723), a Dutch microscopist. In the year 1681, while observing his own excrement, Leeuwenhoek discovered and described certain forms of life which he called "animalcules" and which were verified later by workers in protozoology as Giardia lamblia, a protozoan parasite of the intestinal tract. During the period preceding the later part of the 19th century many observations of the parasitic intestinal protozoa of men and lower animals were made and many species were classified. It wasn't, however, until the year 1875 that a protozoan …

A Study Of Subspecific Variation In The Yellow Pocket-Gopher (Geomys Lutescens) In Nebraska, And Of The Geographical And Ecological Distribution Of The Variants, Myron H. Swenk

University of Nebraska State Museum: Mammalogy Papers

The Yellow Pocket-Gopher (Geomys lutescens) was described by Merriam (14) in 1890, as a paler and smaller subspecies of Geomys bursarius, based on "numerous specimens received from the Sand Hills of western Nebraska", and especially upon an adult Cjl type specimen (No. 23595, U. S. N. M.) collected in the sandhills along Birdwood Creek, Lincoln County, Nebraska, May 27, 1889, by A. B. Baker. Although even as late as 1931 Scheffer (17) classified Geomys lutescens as a subspecies of G. bursarius, it is without doubt specifically distinct from G. bursarius. In all of its variations …

Changes In True-Prairie Vegetation During Drought As Determined By List Quadrats, J. E. Weaver, Joseph H. Robertson, Robert L. Fowler

Papers of John E. Weaver (1884-1956)

The drought of 1934 was not only the most severe on record for the true-prairie association but was also of the earliest inception. On June 8, Kincer ('34) stated that "pastures are the poorest ever known, and the hay crop will be extremely short, regardless of future weather." The stress increased as the summer advanced. Stoddart ('35) tood advantage of these conditions to investigate the relation of osmotic pressure and water content of prairie plants to environmental factors in the vicinity of Lincoln, Nebraska. Simultaneously, Nedrow ('37) was conducting trenching experiments in his study of the efficiency of absorption at …

A Study Of Local Size Variations In The Prairie Pocket-Gopher (Geomys Bursarius), With Description Of A New Subspecies From Nebraska, Myron H. Swenk

University of Nebraska State Museum: Mammalogy Papers

Beginning in the fall of 1913, the writer has continuously been interested in accumulating accurate body measurements, taken in the flesh, of Nebraska pocket-gophers. As a result quite an assemblage of such data has been secured. In the case of Geomys bursarius, the bulk of these data relates to specimens trapped in the vicinity of Lincoln, Lancaster County, involving to date 48 adult and 38 immature males and 50 adult and 65 immature females. Recently these measurements have been tabulated and compared with such measurements of the species as have been recorded in the literature from other parts of …

Geographic Races Of The Kangaroo Rat, Dipodomys Microps, E. Raymond Hall, Frederick H. Dale

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

A New Kangaroo Rat Of The Dipodomys Ordii Group From The Big Bend Region Of Texas, Monroe D. Bryant

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.