Image: The Dalles pocket gopher and its influence on forage production of Oregon mountain meadows (1951) (20804453196)

Description: Title: The Dalles pocket gopher and its influence on forage production of Oregon mountain meadows Identifier: dallespocketgoph884moor (find matches) Year: 1951 (1950s) Authors: Moore, A. W. (Albert Watts), 1897-; Reid, Elbert Hann, 1912- Subjects: Pocket gophers Oregon; Forage plants Oregon Publisher: Washington, D. C. : U. S. Dept. of Agriculture Contributing Library: U.S. Department of Agriculture, National Agricultural Library Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: CIRCULAR i, U. S. DEPARTMENT OF AGRICULTURE Text Appearing After Image: Figure 3.—The Dalles pocket gopher. has a ragged appearance. Fur-lined cheek pouches, into which one may easily place a thumb, on each side of the jaws, are used for carrying food. They extend from immediately back of the incisors to just in front of the ears. The dental arrangement is incisors 1.0 ,1,3 — molars 1. grow continuously from the base. - canines -^ premolars y molars -^ = 20. As in all rodents, the incisors Range The range of Dalles pocket gopher in relation to that of other kinds of pocket gophers in Oregon is shown in figure 4. Dalles pocket gopher is relatively common in most of the sagebrush plains and bordering mountain areas of eastern Oregon. Its range extends into northwestern Nevada, northeastern California, and southern Washington. This gopher is most abundant along streams and in valley bottoms, especially on meadowlands where there is some moisture and green vegetation, and is absent from wide stretches of arid uplands. It prefers the more open places and shuns densely forested areas. As the forests are opened up by logging, however, the pocket gophers move into them. Burrowing Habits The Dalles pocket gopher lives in a burrow made up of underground runways and cavities. Where snow persists burrow systems may be ex- tended above the ground into the snow. Usually each adult gopher has its own burrow system, not connected with those of its neighbors. Runways are 2 to 3 inches in diameter and vary up to several hundred feet in length. Main runways are roughly parallel to the ground surface, Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Title: The Dalles pocket gopher and its influence on forage production of Oregon mountain meadows (1951) (20804453196)
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