Books Should Be Free is now
Loyal Books
Free Public Domain Audiobooks & eBook Downloads
Search by: Title, Author or Keyword

Mammals of Northwestern South Dakota   By:

Book cover

First Page:

UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY

Vol. 19, No. 5, pp. 361 393, 8 figs. January 18, 1971

Mammals of Northwestern South Dakota

KENNETH W. ANDERSEN and J. KNOX JONES, JR.

UNIVERSITY OF KANSAS LAWRENCE 1971

UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY

Editors of this number: Frank B. Cross, Philip S. Humphrey, William E. Duellman

Volume 19, No. 5, pp. 361 393, 8 figs. Published January 18, 1971

UNIVERSITY OF KANSAS Lawrence, Kansas

PRINTED BY THE UNIVERSITY OF KANSAS PRINTING SERVICE LAWRENCE, KANSAS 1971

[Transcriber's Note: Words surrounded by tildes, like ~this~ signifies words in bold. Words surrounded by underscores, like this , signifies words in italics.]

Mammals of Northwestern South Dakota

BY

KENNETH W. ANDERSEN and J. KNOX JONES, JR.

The mammalian fauna of the western Dakotas and adjacent Montana is relatively poorly known. Few published reports have dealt with mammals from this part of the Northern Great Plains, and none of these involved detailed study of a restricted area. The present report summarizes information gathered in Harding County, northwestern South Dakota, and includes material on the more than 50 species of mammals that are known to occur there.

Harding County has an area of approximately 2700 square miles (Fig. 1). The county first was organized in 1881, but the present boundaries were not fixed until 1908. Physiographically, it lies in that part of the Missouri Plateau frequently termed the "Cretaceous Table Lands." The general topography is one of rolling hills and flats mostly range land vegetated by short grasses and sage broken by spectacular buttes and hills that rise 400 to 600 or more feet above the surrounding plains. These monadnocks are "... part of a system of Tertiary erosional remnants standing above the Late Cretaceous rocks of northwestern South Dakota...," according to Lillegraven (1970:832), who went on to point out: "The butte tops are flat and grass covered. The western sides are being actively cut away by slumping, and the topography below the western cliff walls is hummocky with sparse vegetation. The eastern flanks of the tables are, by contrast, less cliff forming and less slumped and are generally well forested with coniferous and deciduous trees." Slim Buttes, the North and South Cave Hills, the East and West Short Pine Hills, and the Long Pine Hills, which barely enter the county north of Camp Crook, comprise the pine clad buttes; other prominences, such as Table Mountain and Sheep Buttes, are all but nude of coniferous cover. The highest point in the county, "Harding Peak," is 4019 feet above sea level.

Sediments underlying northwestern South Dakota include rocks assignable to the Pierre (shale), Fox Hills (sand), and Hell Creek formations of Cretaceous age and the Ludlow and Tongue River formations of the Paleocene. These rocks may be exposed at the surface, but usually are overlain by relatively thin soils that are mostly derived from them; the best soil in the county for agricultural purposes is the loessal sandy or silty loam in the northeastern quarter, which is derived from Tongue River sediments (Baker, 1952).

[Illustration: FIG. 1. Map of Harding County, South Dakota, showing location of places named in text.]

The climate of northwestern South Dakota is characteristic of the northern part of the interior grasslands of North America that is, the winters are cold and the summers hot and dry. Weather data for the period 1896 1967 at Camp Crook are representative of those gathered at the several stations maintained in the county. At Camp Crook the mean temperature for January is 17.3 F, whereas that for July is 71.2 F; precipitation averages 13.17 inches annually, most falling in the months of April through September; snowfall amounts to an average of 33.2 inches per year and is recorded from every month from September through May (Climatogeography of the United States, no. 20 39, Camp Crook, South Dakota, 1969)... Continue reading book >>




eBook Downloads
ePUB eBook
• iBooks for iPhone and iPad
• Nook
• Sony Reader
Kindle eBook
• Mobi file format for Kindle
Read eBook
• Load eBook in browser
Text File eBook
• Computers
• Windows
• Mac

Review this book



Popular Genres
More Genres
Languages
Paid Books